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TimetableClashChecker-gskbNvYE...	32.74 KB	-rwxr-xr-x
TimetableClashChecker-gskbNvYE...	137.78 KB	-rwxr-xr-x
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Code Editor : TimetableClashChecker-gskbNvYE.js.map

{"version":3,"file":"TimetableClashChecker-gskbNvYE.js","sources":["../../src_new/features/academic/TimetableClashChecker.tsx"],"sourcesContent":["import React, { useState, useEffect, useMemo } from \"react\";\r\nimport {\r\n  Box,\r\n  Heading,\r\n  Text,\r\n  Grid,\r\n  Input,\r\n  Select,\r\n  Button,\r\n  Flex,\r\n  Badge,\r\n  Spinner,\r\n  useToast,\r\n  IconButton,\r\n  Tooltip,\r\n  Tag,\r\n  TagLabel,\r\n  TagLeftIcon,\r\n  SimpleGrid,\r\n  Divider,\r\n  VStack,\r\n  HStack,\r\n  Tabs,\r\n  TabList,\r\n  TabPanels,\r\n  Tab,\r\n  TabPanel,\r\n  Table,\r\n  Thead,\r\n  Tbody,\r\n  Tr,\r\n  Th,\r\n  Td,\r\n  Alert,\r\n  AlertIcon,\r\n  AlertTitle,\r\n  AlertDescription,\r\n  useDisclosure,\r\n  Modal,\r\n  ModalOverlay,\r\n  ModalContent,\r\n  ModalHeader,\r\n  ModalFooter,\r\n  ModalBody,\r\n  ModalCloseButton,\r\n} from \"@chakra-ui/react\";\r\nimport {\r\n  Search,\r\n  Calendar,\r\n  Clock,\r\n  AlertCircle,\r\n  CheckCircle,\r\n  Filter,\r\n  Book,\r\n  X,\r\n  Clock8,\r\n  BookmarkCheck,\r\n  Minus as MinusIcon,\r\n} from \"lucide-react\";\r\nimport { useNavigate } from \"react-router-dom\";\r\nimport { supabase } from \"../../lib/supabase\";\r\nimport { useAuth } from \"../../lib/contexts/AuthContext\";\r\nimport NavBar from \"../shared/NavBar\";\r\n\r\n// Type definitions\r\ninterface Course {\r\n  uuid: string;\r\n  course_code: string;\r\n  course_name: string;\r\n  credits: number;\r\n  semester: number | null;\r\n  description: string | null;\r\n  professor_allocated: string | null;\r\n  dept_acronym: string;\r\n  prerequisites: string[];\r\n  antirequisites: string[];\r\n  schedule: Schedule[];\r\n  department: {\r\n    uuid: string;\r\n    dept_name: string;\r\n    dept_acronym: string;\r\n  } | null;\r\n  isSelected?: boolean;\r\n  course_acronym?: string;\r\n  semester_type?: string | null;\r\n}\r\n\r\ninterface Schedule {\r\n  day: string;\r\n  start_time: string;\r\n  end_time: string;\r\n  room?: string;\r\n  type?: string;\r\n}\r\n\r\ninterface FilterOptions {\r\n  search: string;\r\n  semester: string;\r\n  department: string;\r\n  credits: string;\r\n  sortBy: string;\r\n  sortOrder: \"asc\" | \"desc\";\r\n}\r\n\r\ninterface ClashResult {\r\n  courseId: string;\r\n  hasClash: boolean;\r\n  clashingWith: string[]; // Course IDs that clash\r\n}\r\n\r\ninterface CourseBlock {\r\n  course: Course;\r\n  startSlotIndex: number;\r\n  endSlotIndex: number;\r\n  duration: number; // number of 30-minute slots\r\n}\r\n\r\n// Helper function to convert time string to minutes for comparison\r\nconst timeToMinutes = (timeStr: string): number => {\r\n  if (!timeStr) return 0;\r\n  const [hours, minutes] = timeStr.split(\":\").map(Number);\r\n  return hours * 60 + minutes;\r\n};\r\n\r\n// Function to detect clashes between courses\r\nconst detectClashes = (courses: Course[]): ClashResult[] => {\r\n  const results: ClashResult[] = [];\r\n\r\n  for (let i = 0; i < courses.length; i++) {\r\n    const course = courses[i];\r\n    const clashingWith: string[] = [];\r\n\r\n    // Skip courses with no schedule\r\n    if (!course.schedule || course.schedule.length === 0) {\r\n      results.push({\r\n        courseId: course.uuid,\r\n        hasClash: false,\r\n        clashingWith: [],\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // Check against all other courses\r\n    for (let j = 0; j < courses.length; j++) {\r\n      if (i === j) continue; // Skip comparing with itself\r\n\r\n      const otherCourse = courses[j];\r\n\r\n      // Skip courses with no schedule\r\n      if (!otherCourse.schedule || otherCourse.schedule.length === 0) {\r\n        continue;\r\n      }\r\n\r\n      // Compare all schedule slots\r\n      for (const slot1 of course.schedule) {\r\n        for (const slot2 of otherCourse.schedule) {\r\n          // Check if same day and time overlap\r\n          if (slot1.day === slot2.day) {\r\n            const slot1Start = timeToMinutes(slot1.start_time);\r\n            const slot1End = timeToMinutes(slot1.end_time);\r\n            const slot2Start = timeToMinutes(slot2.start_time);\r\n            const slot2End = timeToMinutes(slot2.end_time);\r\n\r\n            // Check for overlap - standard interval overlap check\r\n            if (slot1Start < slot2End && slot1End > slot2Start) {\r\n              if (!clashingWith.includes(otherCourse.uuid)) {\r\n                clashingWith.push(otherCourse.uuid);\r\n              }\r\n            }\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    results.push({\r\n      courseId: course.uuid,\r\n      hasClash: clashingWith.length > 0,\r\n      clashingWith,\r\n    });\r\n  }\r\n\r\n  return results;\r\n};\r\n\r\n// Add an array of colors for courses\r\nconst COURSE_COLORS = [\r\n  \"blue.400\",\r\n  \"green.400\",\r\n  \"purple.400\",\r\n  \"pink.400\",\r\n  \"orange.400\",\r\n  \"teal.400\",\r\n  \"cyan.400\",\r\n  \"yellow.400\",\r\n  \"red.400\",\r\n  \"indigo.400\",\r\n];\r\n\r\n// Main component\r\nconst TimetableClashChecker: React.FC = () => {\r\n  const [courses, setCourses] = useState<Course[]>([]);\r\n  const [filteredCourses, setFilteredCourses] = useState<Course[]>([]);\r\n  const [selectedCourses, setSelectedCourses] = useState<Course[]>([]);\r\n  const [clashResults, setClashResults] = useState<ClashResult[]>([]);\r\n  const [departments, setDepartments] = useState<string[]>([]);\r\n  const [loading, setLoading] = useState(true);\r\n  const [noCoursesFound, setNoCoursesFound] = useState(false);\r\n  const [courseColors, setCourseColors] = useState<{\r\n    [courseId: string]: string;\r\n  }>({});\r\n  const [filters, setFilters] = useState<FilterOptions>({\r\n    search: \"\",\r\n    semester: \"\",\r\n    department: \"\",\r\n    credits: \"\",\r\n    sortBy: \"name\",\r\n    sortOrder: \"asc\",\r\n  });\r\n  const [viewMode, setViewMode] = useState<\"list\" | \"streams\" | \"semesters\">(\r\n    \"streams\",\r\n  );\r\n  const {\r\n    isOpen: isDetailsOpen,\r\n    onOpen: onDetailsOpen,\r\n    onClose: onDetailsClose,\r\n  } = useDisclosure();\r\n  const {\r\n    isOpen: isTimetableOpen,\r\n    onOpen: onTimetableOpen,\r\n    onClose: onTimetableClose,\r\n  } = useDisclosure();\r\n  const [selectedCourseDetails, setSelectedCourseDetails] =\r\n    useState<Course | null>(null);\r\n\r\n  // Add state variables to track credit count and max limits\r\n  const [totalCredits, setTotalCredits] = useState<number>(0);\r\n  const [totalCourses, setTotalCourses] = useState<number>(0);\r\n  const [creditLimit, setCreditLimit] = useState<number>(20);\r\n  const [saving, setSaving] = useState(false);\r\n  const [isSavedToCurrentSemester, setIsSavedToCurrentSemester] = useState(false);\r\n  const MAX_COURSES = 8;\r\n  const MIN_CREDITS = 12;\r\n  const MAX_CREDITS = 24;\r\n  const CREDIT_LIMITS = [20, 22, 24];\r\n\r\n  const navigate = useNavigate();\r\n  const toast = useToast();\r\n  const { session } = useAuth();\r\n\r\n  // Fetch courses on component mount\r\n  useEffect(() => {\r\n    fetchCourses();\r\n    loadCurrentSemesterSelections();\r\n  }, []);\r\n\r\n  // Define filterCourses before using it in useEffect\r\n  const filterCourses = () => {\r\n    if (!courses) {\r\n      setFilteredCourses([]);\r\n      return;\r\n    }\r\n\r\n    let filtered = [...courses];\r\n\r\n    // Apply search filter\r\n    if (filters.search) {\r\n      const searchLower = filters.search.toLowerCase();\r\n      filtered = filtered.filter(\r\n        (course) =>\r\n          course.course_name.toLowerCase().includes(searchLower) ||\r\n          course.course_code.toLowerCase().includes(searchLower) ||\r\n          (course.course_acronym && \r\n            course.course_acronym.toLowerCase().includes(searchLower)) ||\r\n          (course.professor_allocated &&\r\n            course.professor_allocated.toLowerCase().includes(searchLower)),\r\n      );\r\n    }\r\n\r\n    // Apply semester filter\r\n    if (filters.semester) {\r\n      filtered = filtered.filter(\r\n        (course) => course.semester === parseInt(filters.semester),\r\n      );\r\n    }\r\n\r\n    // Apply department filter - match on dept_name\r\n    if (filters.department) {\r\n      filtered = filtered.filter(\r\n        (course) =>\r\n          course.department &&\r\n          course.department.dept_name === filters.department,\r\n      );\r\n    }\r\n\r\n    // Apply credits filter\r\n    if (filters.credits) {\r\n      filtered = filtered.filter(\r\n        (course) => course.credits === parseInt(filters.credits),\r\n      );\r\n    }\r\n\r\n    // Sort results\r\n    filtered = filtered.sort((a, b) => {\r\n      // Sort logic\r\n      if (filters.sortBy === \"name\") {\r\n        return filters.sortOrder === \"asc\"\r\n          ? a.course_name.localeCompare(b.course_name)\r\n          : b.course_name.localeCompare(a.course_name);\r\n      } else if (filters.sortBy === \"code\") {\r\n        return filters.sortOrder === \"asc\"\r\n          ? a.course_code.localeCompare(b.course_code)\r\n          : b.course_code.localeCompare(a.course_code);\r\n      } else if (filters.sortBy === \"credits\") {\r\n        return filters.sortOrder === \"asc\"\r\n          ? a.credits - b.credits\r\n          : b.credits - a.credits;\r\n      }\r\n      return 0;\r\n    });\r\n\r\n    setFilteredCourses(filtered);\r\n  };\r\n\r\n  // Update filtered courses whenever courses or filters change\r\n  useEffect(() => {\r\n    filterCourses();\r\n  }, [courses, filters]);\r\n\r\n  // Update clash results whenever selected courses change\r\n  useEffect(() => {\r\n    if (selectedCourses.length > 0) {\r\n      // Calculate total credits\r\n      const credits = selectedCourses.reduce(\r\n        (total, course) => total + course.credits,\r\n        0,\r\n      );\r\n      setTotalCredits(credits);\r\n      setTotalCourses(selectedCourses.length);\r\n\r\n      // Check for clashes\r\n      const results = detectClashes(selectedCourses);\r\n      setClashResults(results);\r\n    } else {\r\n      setTotalCredits(0);\r\n      setTotalCourses(0);\r\n      setClashResults([]);\r\n    }\r\n  }, [selectedCourses]);\r\n\r\n  const fetchCourses = async () => {\r\n    try {\r\n      setLoading(true);\r\n      console.log('Fetching courses...');\r\n      \r\n      // Debug Supabase connection\r\n      console.log('Attempting to connect to Supabase...');\r\n      \r\n      // Use the correct table name from the screenshot\r\n      const tableName = \"courses_iiitd\";\r\n      console.log(`Attempting to fetch data from table: ${tableName}`);\r\n      \r\n      // Now try to fetch the courses\r\n      const { data: coursesData, error: coursesError } = await supabase\r\n        .from(tableName)\r\n        .select(\"*\");\r\n      \r\n      console.log('Query result:', coursesData ? 'Data received' : 'No data', 'Error:', coursesError);\r\n      \r\n      if (coursesError) {\r\n        console.error(`Error accessing ${tableName}:`, coursesError);\r\n        console.error(`Error details: ${JSON.stringify(coursesError)}`);\r\n        setNoCoursesFound(true);\r\n        throw new Error(`Error accessing ${tableName}: ${coursesError.message}`);\r\n      }\r\n      \r\n      console.log(`Data from ${tableName}:`, coursesData?.length || 0, 'courses');\r\n      \r\n      // If no courses data is available, show a toast message\r\n      if (!coursesData || coursesData.length === 0) {\r\n        console.log(`No data found in ${tableName} table`);\r\n        setNoCoursesFound(true);\r\n        toast({\r\n          title: \"No courses found in database\",\r\n          description: \"Please upload courses using the Admin Dashboard or contact the system administrator.\",\r\n          status: \"warning\",\r\n          duration: 10000,\r\n          isClosable: true,\r\n        });\r\n        setLoading(false);\r\n        return;\r\n      }\r\n\r\n      // Fetch departments separately\r\n      const { data: departmentsData, error: departmentsError } = await supabase\r\n        .from(\"departments_iiitd\")\r\n        .select(\"uuid, dept_name, dept_acronym\");\r\n      \r\n      console.log('Departments data received:', departmentsData?.length || 0, 'departments');\r\n\r\n      if (departmentsError) {\r\n        console.error(\"Error fetching departments:\", departmentsError);\r\n      }\r\n\r\n      // Process courses data with proper field names and join with departments\r\n      const processedCourses =\r\n        coursesData.map((course) => {\r\n          // Find matching department\r\n          const dept = departmentsData?.find(\r\n            (d) => d.dept_acronym === course.dept_acronym,\r\n          );\r\n\r\n          // Parse schedule from JSON string if needed\r\n          let schedule = [];\r\n          if (course.schedule) {\r\n            try {\r\n              schedule =\r\n                typeof course.schedule === \"string\"\r\n                  ? JSON.parse(course.schedule)\r\n                  : course.schedule;\r\n            } catch (e) {\r\n              console.error(\r\n                \"Error parsing schedule for course\",\r\n                course.course_code,\r\n                e,\r\n              );\r\n            }\r\n          }\r\n\r\n          return {\r\n            ...course,\r\n            prerequisites: course.prerequisites\r\n              ? course.prerequisites.split(\"/\").filter(Boolean)\r\n              : [],\r\n            antirequisites: course.antirequisites\r\n              ? course.antirequisites.split(\"/\").filter(Boolean)\r\n              : [],\r\n            schedule: schedule,\r\n            department: dept\r\n              ? {\r\n                  uuid: dept.uuid,\r\n                  dept_name: dept.dept_name,\r\n                  dept_acronym: dept.dept_acronym,\r\n                }\r\n              : null,\r\n          };\r\n        }) || [];\r\n      \r\n      console.log('Processed courses:', processedCourses.length);\r\n      setCourses(processedCourses);\r\n      console.log('Courses state updated');\r\n\r\n      // Extract unique departments for filter\r\n      if (departmentsData) {\r\n        const depts = departmentsData.map((d) => d.dept_name).filter(Boolean);\r\n        console.log('Setting departments:', depts);\r\n        setDepartments(depts);\r\n      }\r\n    } catch (error: any) {\r\n      console.error(\"Error fetching courses:\", error);\r\n      toast({\r\n        title: \"Error fetching courses\",\r\n        description: error.message,\r\n        status: \"error\",\r\n        duration: 3000,\r\n        isClosable: true,\r\n      });\r\n      setNoCoursesFound(true);\r\n    } finally {\r\n      setLoading(false);\r\n    }\r\n  };\r\n\r\n  const loadCurrentSemesterSelections = async () => {\r\n    if (!session?.user?.id) return;\r\n\r\n    try {\r\n      // Fetch user's current semester courses\r\n      const { data: userData, error } = await supabase\r\n        .from(\"users\")\r\n        .select(\"current_semester_courses\")\r\n        .eq(\"id\", session.user.id)\r\n        .single();\r\n\r\n      if (error) throw error;\r\n\r\n      const currentSemesterData = userData?.current_semester_courses;\r\n      if (\r\n        currentSemesterData &&\r\n        currentSemesterData.courses &&\r\n        currentSemesterData.courses.length > 0\r\n      ) {\r\n        // Create array to hold full course details\r\n        const coursesWithDetails: Course[] = [];\r\n\r\n        // Use the same table name as in fetchCourses\r\n        const tableName = \"courses_iiitd\";\r\n        console.log(`Using ${tableName} for current semester selections`);\r\n\r\n        // Process each course individually\r\n        for (const semesterCourse of currentSemesterData.courses) {\r\n          const courseId = semesterCourse.course_uuid || semesterCourse.course_acronym;\r\n\r\n          try {\r\n            // First, try to fetch the course by course_code/acronym\r\n            let { data: courseData } = await supabase\r\n              .from(tableName)\r\n              .select(\"*\")\r\n              .eq(\"course_code\", semesterCourse.course_acronym)\r\n              .maybeSingle();\r\n\r\n            // If not found by course_code, try by UUID\r\n            if (!courseData && semesterCourse.course_uuid) {\r\n              try {\r\n                const { data: courseByUuid } = await supabase\r\n                  .from(tableName)\r\n                  .select(\"*\")\r\n                  .eq(\"uuid\", semesterCourse.course_uuid)\r\n                  .maybeSingle();\r\n\r\n                if (courseByUuid) {\r\n                  courseData = courseByUuid;\r\n                }\r\n              } catch (uuidError) {\r\n                console.log(`UUID format error for ${semesterCourse.course_uuid}, skipping course`);\r\n              }\r\n            }\r\n\r\n            // If we found the course, fetch the department separately\r\n            if (courseData) {\r\n              // Get department data\r\n              if (courseData.dept_acronym) {\r\n                const { data: deptData } = await supabase\r\n                  .from(\"departments_iiitd\")\r\n                  .select(\"uuid, dept_name, dept_acronym\")\r\n                  .eq(\"dept_acronym\", courseData.dept_acronym)\r\n                  .maybeSingle();\r\n                \r\n                // Add department to course data\r\n                if (deptData) {\r\n                  courseData.department = {\r\n                    uuid: deptData.uuid,\r\n                    dept_name: deptData.dept_name,\r\n                    dept_acronym: deptData.dept_acronym\r\n                  };\r\n                }\r\n              }\r\n\r\n              // Process course data\r\n              const courseWithDetails = processCourseFetchResult(courseData);\r\n              if (courseWithDetails) {\r\n                coursesWithDetails.push(courseWithDetails);\r\n              }\r\n            }\r\n          } catch (error) {\r\n            console.error(`Error fetching course ${courseId}:`, error);\r\n          }\r\n        }\r\n\r\n        if (coursesWithDetails.length > 0) {\r\n          // Set the selected courses and update state\r\n          setSelectedCourses(coursesWithDetails);\r\n          setCreditLimit(currentSemesterData.credit_limit || 20);\r\n          setIsSavedToCurrentSemester(true);\r\n\r\n          // Assign colors to pre-selected courses\r\n          const colors: { [courseId: string]: string } = {};\r\n          coursesWithDetails.forEach((course, index) => {\r\n            colors[course.uuid] = COURSE_COLORS[index % COURSE_COLORS.length];\r\n          });\r\n          setCourseColors(colors);\r\n\r\n          toast({\r\n            title: \"Current semester courses loaded\",\r\n            description: `Loaded ${coursesWithDetails.length} courses from your current semester`,\r\n            status: \"info\",\r\n            duration: 3000,\r\n            isClosable: true,\r\n          });\r\n        }\r\n      }\r\n    } catch (error: any) {\r\n      console.error(\"Error loading current semester selections:\", error);\r\n      // Don't show error toast for this as it's not critical\r\n    }\r\n  };\r\n\r\n  // Helper function to process course data\r\n  const processCourseFetchResult = (course: any): Course | null => {\r\n    if (!course) return null;\r\n\r\n    try {\r\n      // Parse schedule from string to array if needed\r\n      let schedule = [];\r\n      if (course.schedule) {\r\n        try {\r\n          schedule =\r\n            typeof course.schedule === \"string\"\r\n              ? JSON.parse(course.schedule)\r\n              : course.schedule;\r\n        } catch (e) {\r\n          console.error(\"Error parsing schedule:\", e);\r\n          schedule = [];\r\n        }\r\n      }\r\n\r\n      // Parse prerequisites and antirequisites if they exist\r\n      const prerequisites = course.prerequisites\r\n        ? course.prerequisites.split(\"/\").filter(Boolean)\r\n        : [];\r\n\r\n      const antirequisites = course.antirequisites\r\n        ? course.antirequisites.split(\"/\").filter(Boolean)\r\n        : [];\r\n\r\n      // Process department info - handle nested join\r\n      let department: { uuid: string; dept_name: string; dept_acronym: string; } | null = null;\r\n      if (course.departments_iiitd) {\r\n        department = {\r\n          uuid: course.departments_iiitd.uuid,\r\n          dept_name: course.departments_iiitd.dept_name,\r\n          dept_acronym: course.departments_iiitd.dept_acronym,\r\n        };\r\n      } else if (course.dept_acronym) {\r\n        // Fallback to just using the acronym if we don't have the full department info\r\n        department = {\r\n          uuid: \"\",\r\n          dept_name: course.dept_acronym,\r\n          dept_acronym: course.dept_acronym,\r\n        };\r\n      }\r\n\r\n      return {\r\n        uuid: course.uuid,\r\n        course_code: course.course_code,\r\n        course_name: course.course_name,\r\n        credits: course.credits,\r\n        semester: course.semester,\r\n        semester_type: course.semester_type,\r\n        description: course.description,\r\n        professor_allocated: course.professor_allocated,\r\n        dept_acronym: course.dept_acronym,\r\n        prerequisites: prerequisites,\r\n        antirequisites: antirequisites,\r\n        schedule: schedule,\r\n        department: department,\r\n        course_acronym: course.course_acronym,\r\n      };\r\n    } catch (e) {\r\n      console.error(\"Error processing course data:\", e);\r\n      return null;\r\n    }\r\n  };\r\n\r\n  const handleFilterChange = (name: keyof FilterOptions, value: string) => {\r\n    setFilters((prev) => ({\r\n      ...prev,\r\n      [name]: value,\r\n    }));\r\n  };\r\n\r\n  const toggleSort = (field: string) => {\r\n    if (filters.sortBy === field) {\r\n      setFilters((prev) => ({\r\n        ...prev,\r\n        sortOrder: prev.sortOrder === \"asc\" ? \"desc\" : \"asc\",\r\n      }));\r\n    } else {\r\n      setFilters((prev) => ({\r\n        ...prev,\r\n        sortBy: field,\r\n        sortOrder: \"asc\",\r\n      }));\r\n    }\r\n  };\r\n\r\n  const selectCourse = (course: Course) => {\r\n    // Check if course is already selected\r\n    const isAlreadySelected = selectedCourses.some(\r\n      (c) => c.uuid === course.uuid,\r\n    );\r\n\r\n    if (isAlreadySelected) {\r\n      // Remove from selected courses\r\n      setSelectedCourses((prev) => prev.filter((c) => c.uuid !== course.uuid));\r\n\r\n      // Remove the color assignment\r\n      setCourseColors((prev) => {\r\n        const updated = { ...prev };\r\n        delete updated[course.uuid];\r\n        return updated;\r\n      });\r\n\r\n      // Mark as not saved since we modified the selection\r\n      setIsSavedToCurrentSemester(false);\r\n\r\n      toast({\r\n        title: \"Course removed\",\r\n        description: `${course.course_code} has been removed from your selection`,\r\n        status: \"info\",\r\n        duration: 2000,\r\n        isClosable: true,\r\n      });\r\n    } else {\r\n      // Check course and credit limits\r\n      const newTotalCourses = selectedCourses.length + 1;\r\n      const newTotalCredits = totalCredits + course.credits;\r\n\r\n      if (newTotalCourses > MAX_COURSES) {\r\n        toast({\r\n          title: \"Course limit exceeded\",\r\n          description: `You can select a maximum of ${MAX_COURSES} courses per semester.`,\r\n          status: \"warning\",\r\n          duration: 3000,\r\n          isClosable: true,\r\n        });\r\n        return;\r\n      }\r\n\r\n      if (newTotalCredits > creditLimit) {\r\n        toast({\r\n          title: \"Credit limit exceeded\",\r\n          description: `You can select a maximum of ${creditLimit} credits per semester.`,\r\n          status: \"warning\",\r\n          duration: 3000,\r\n          isClosable: true,\r\n        });\r\n        return;\r\n      }\r\n\r\n      // Check if adding this course would create a clash\r\n      const tempSelected = [...selectedCourses, course];\r\n      const tempResults = detectClashes(tempSelected);\r\n\r\n      // Find if this course would clash with any existing course\r\n      const courseResult = tempResults.find((r) => r.courseId === course.uuid);\r\n      const wouldClash = courseResult?.hasClash || false;\r\n\r\n      if (wouldClash) {\r\n        // Don't add the course, show warning toast instead\r\n        const clashingCourses = courseResult?.clashingWith\r\n          .map((id) => {\r\n            const c = selectedCourses.find((sc) => sc.uuid === id);\r\n            return c?.course_code;\r\n          })\r\n          .filter(Boolean)\r\n          .join(\", \");\r\n\r\n        toast({\r\n          title: \"Schedule Conflict Detected\",\r\n          description: `${course.course_code} clashes with ${clashingCourses}. Please select a different course.`,\r\n          status: \"warning\",\r\n          duration: 4000,\r\n          isClosable: true,\r\n        });\r\n      } else {\r\n        // Add to selected courses - keep existing courses\r\n        setSelectedCourses((prev) => [...prev, course]);\r\n\r\n        // Assign a color to this course\r\n        setCourseColors((prev) => {\r\n          const nextColorIndex =\r\n            Object.keys(prev).length % COURSE_COLORS.length;\r\n          return {\r\n            ...prev,\r\n            [course.uuid]: COURSE_COLORS[nextColorIndex],\r\n          };\r\n        });\r\n\r\n        // Mark as not saved since we modified the selection\r\n        setIsSavedToCurrentSemester(false);\r\n\r\n        toast({\r\n          title: \"Course selected\",\r\n          description: `${course.course_code} has been added to your selection`,\r\n          status: \"success\",\r\n          duration: 2000,\r\n          isClosable: true,\r\n        });\r\n      }\r\n    }\r\n  };\r\n\r\n  const viewCourseDetails = (course: Course) => {\r\n    setSelectedCourseDetails(course);\r\n    onDetailsOpen();\r\n  };\r\n\r\n  const getCourseById = (courseId: string): Course | undefined => {\r\n    return selectedCourses.find((course) => course.uuid === courseId);\r\n  };\r\n\r\n  const getClashResultForCourse = (\r\n    courseId: string,\r\n  ): ClashResult | undefined => {\r\n    return clashResults.find((result) => result.courseId === courseId);\r\n  };\r\n\r\n  const saveToCurrentSemester = async () => {\r\n    if (!session?.user?.id) {\r\n      toast({\r\n        title: \"Authentication required\",\r\n        description: \"Please log in to save courses\",\r\n        status: \"error\",\r\n        duration: 3000,\r\n        isClosable: true,\r\n      });\r\n      return;\r\n    }\r\n\r\n    if (selectedCourses.length === 0) {\r\n      toast({\r\n        title: \"No courses selected\",\r\n        description: \"Please select courses before saving\",\r\n        status: \"warning\",\r\n        duration: 3000,\r\n        isClosable: true,\r\n      });\r\n      return;\r\n    }\r\n\r\n    if (hasAnyClashes) {\r\n      toast({\r\n        title: \"Cannot save courses with clashes\",\r\n        description: \"Please resolve all timetable conflicts before saving\",\r\n        status: \"error\",\r\n        duration: 3000,\r\n        isClosable: true,\r\n      });\r\n      return;\r\n    }\r\n\r\n    if (totalCredits < MIN_CREDITS) {\r\n      toast({\r\n        title: \"Minimum credit requirement not met\",\r\n        description: `You need at least ${MIN_CREDITS} credits. Currently selected: ${totalCredits} credits`,\r\n        status: \"warning\",\r\n        duration: 4000,\r\n        isClosable: true,\r\n      });\r\n      return;\r\n    }\r\n\r\n    setSaving(true);\r\n    try {\r\n      // Prepare course data in minimal format\r\n      const coursesToSave = selectedCourses.map((course) => ({\r\n        course_id: course.uuid,\r\n        course_code: course.course_code,\r\n        course_name: course.course_name,\r\n        credits: course.credits,\r\n        schedule: course.schedule,\r\n        enrollment_date: new Date().toISOString(),\r\n      }));\r\n\r\n      const currentSemesterData = {\r\n        courses: coursesToSave,\r\n        total_credits: totalCredits,\r\n        total_courses: totalCourses,\r\n        credit_limit: creditLimit,\r\n        last_updated: new Date().toISOString(),\r\n        clash_checked: true,\r\n      };\r\n\r\n      // Update user's current semester courses\r\n      const { error } = await supabase\r\n        .from(\"users\")\r\n        .update({ current_semester_courses: currentSemesterData })\r\n        .eq(\"id\", session.user.id);\r\n\r\n      if (error) throw error;\r\n\r\n      toast({\r\n        title: \"Courses saved successfully!\",\r\n        description: `${totalCourses} courses (${totalCredits} credits) saved to current semester`,\r\n        status: \"success\",\r\n        duration: 4000,\r\n        isClosable: true,\r\n      });\r\n\r\n      setIsSavedToCurrentSemester(true);\r\n\r\n      // Optionally navigate to dashboard\r\n      // navigate('/dashboard');\r\n    } catch (error: any) {\r\n      console.error(\"Error saving courses:\", error);\r\n      toast({\r\n        title: \"Error saving courses\",\r\n        description: error.message,\r\n        status: \"error\",\r\n        duration: 3000,\r\n        isClosable: true,\r\n      });\r\n    } finally {\r\n      setSaving(false);\r\n    }\r\n  };\r\n\r\n  const hasAnyClashes = useMemo(() => {\r\n    return clashResults.some((result) => result.hasClash);\r\n  }, [clashResults]);\r\n\r\n  // Get color for a course by index\r\n  const getCourseColor = (index: number): string => {\r\n    const course = selectedCourses[index];\r\n    return (\r\n      courseColors[course.uuid] || COURSE_COLORS[index % COURSE_COLORS.length]\r\n    );\r\n  };\r\n\r\n  // Use website's theme color for all course cards\r\n  const getThemeColor = (): string => {\r\n    return \"purple\"; // Matches website's indigo/purple theme\r\n  };\r\n\r\n  // Group courses by stream\r\n  const coursesByStream = useMemo(() => {\r\n    const grouped: { [key: string]: Course[] } = {};\r\n\r\n    filteredCourses.forEach((course) => {\r\n      const streamName = course.department?.dept_name || \"Uncategorized\";\r\n      if (!grouped[streamName]) {\r\n        grouped[streamName] = [];\r\n      }\r\n      grouped[streamName].push(course);\r\n    });\r\n\r\n    return grouped;\r\n  }, [filteredCourses]);\r\n\r\n  // Group courses by semester\r\n  const coursesBySemester = useMemo(() => {\r\n    const grouped: { [key: string]: Course[] } = {};\r\n\r\n    filteredCourses.forEach((course) => {\r\n      // Convert null/undefined to string key \"0\"\r\n      const semesterKey = String(course.semester || 0);\r\n      if (!grouped[semesterKey]) {\r\n        grouped[semesterKey] = [];\r\n      }\r\n      grouped[semesterKey].push(course);\r\n    });\r\n\r\n    return Object.entries(grouped)\r\n      .sort(([semA], [semB]) => parseInt(semA) - parseInt(semB))\r\n      .map(([semester, courses]) => ({\r\n        semester: parseInt(semester),\r\n        courses,\r\n      }));\r\n  }, [filteredCourses]);\r\n\r\n  // Generate timetable data structure for the weekly view\r\n  const weeklyTimetable = useMemo(() => {\r\n    const days = [\"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\"];\r\n    const timeSlots: string[] = [];\r\n\r\n    // Generate time slots from 8AM to 8PM\r\n    for (let hour = 8; hour <= 20; hour++) {\r\n      timeSlots.push(`${hour}:00`);\r\n      if (hour < 20) timeSlots.push(`${hour}:30`);\r\n    }\r\n\r\n    // Create course blocks for spanning visualization\r\n    const courseBlocks: { [day: string]: CourseBlock[] } = {};\r\n    const grid: { [day: string]: { [time: string]: Course[] } } = {};\r\n    const occupied: { [day: string]: { [timeIndex: number]: boolean } } = {};\r\n\r\n    // Initialize structures\r\n    days.forEach((day) => {\r\n      courseBlocks[day] = [];\r\n      grid[day] = {};\r\n      occupied[day] = {};\r\n      timeSlots.forEach((time, index) => {\r\n        grid[day][time] = [];\r\n        occupied[day][index] = false;\r\n      });\r\n    });\r\n\r\n    // Process courses and create blocks\r\n    selectedCourses.forEach((course) => {\r\n      if (!course.schedule) return;\r\n\r\n      course.schedule.forEach((slot) => {\r\n        const day = slot.day;\r\n        if (!days.includes(day)) return;\r\n\r\n        const startMinutes = timeToMinutes(slot.start_time);\r\n        const endMinutes = timeToMinutes(slot.end_time);\r\n\r\n        // Find all slots the course should occupy\r\n        const occupiedSlots: number[] = [];\r\n\r\n        // Go through each time slot and check if course runs during that period\r\n        for (let i = 0; i < timeSlots.length; i++) {\r\n          const [hour, minute] = timeSlots[i].split(\":\").map(Number);\r\n          const slotStartMinutes = hour * 60 + minute;\r\n          const slotEndMinutes = slotStartMinutes + 30;\r\n\r\n          // Proper overlap detection to prevent false clashes at endpoints\r\n          // Course includes slot if it starts before slot ends AND ends after slot starts\r\n          // BUT: if course ends exactly at slot start, don't include that slot\r\n          const courseStartsBeforeSlotEnds = startMinutes < slotEndMinutes;\r\n          const courseEndsAfterSlotStarts = endMinutes > slotStartMinutes;\r\n          const shouldIncludeSlot =\r\n            courseStartsBeforeSlotEnds && courseEndsAfterSlotStarts;\r\n\r\n          if (shouldIncludeSlot) {\r\n            occupiedSlots.push(i);\r\n          }\r\n        }\r\n\r\n        if (occupiedSlots.length > 0) {\r\n          const courseStartSlotIndex = occupiedSlots[0];\r\n          const courseEndSlotIndex = occupiedSlots[occupiedSlots.length - 1];\r\n          const duration = occupiedSlots.length;\r\n\r\n          courseBlocks[day].push({\r\n            course,\r\n            startSlotIndex: courseStartSlotIndex,\r\n            endSlotIndex: courseEndSlotIndex,\r\n            duration,\r\n          });\r\n\r\n          // Mark slots as occupied and populate grid\r\n          occupiedSlots.forEach((slotIndex) => {\r\n            occupied[day][slotIndex] = true;\r\n            grid[day][timeSlots[slotIndex]].push(course);\r\n          });\r\n        }\r\n      });\r\n    });\r\n\r\n    return { days, timeSlots, grid, courseBlocks, occupied };\r\n  }, [selectedCourses]);\r\n\r\n  // Check if a course is from current semester (pre-loaded)\r\n  const isCourseFromCurrentSemester = (courseId: string): boolean => {\r\n    // This will be true for courses that were loaded from current semester\r\n    return (\r\n      selectedCourses.some((c) => c.uuid === courseId) &&\r\n      courseColors[courseId] !== undefined\r\n    );\r\n  };\r\n\r\n  // Course card component\r\n  const CourseCard = ({ course }: { course: Course }) => {\r\n    const isSelected = selectedCourses.some((c) => c.uuid === course.uuid);\r\n    const isFromCurrentSemester = isCourseFromCurrentSemester(course.uuid);\r\n    const clashResult = isSelected\r\n      ? getClashResultForCourse(course.uuid)\r\n      : undefined;\r\n    const hasClash = clashResult?.hasClash || false;\r\n    const courseColor = isSelected\r\n      ? hasClash\r\n        ? \"red\"\r\n        : courseColors[course.uuid]?.split(\".\")[0] || \"green\"\r\n      : null;\r\n    const themeColor = getThemeColor();\r\n\r\n    return (\r\n      <Box\r\n        className=\"bg-white rounded-xl shadow-md hover:shadow-lg transition-all duration-300 overflow-hidden border border-gray-100 relative\"\r\n        borderColor={\r\n          isSelected\r\n            ? hasClash\r\n              ? \"red.300\"\r\n              : courseColors[course.uuid] || \"green.300\"\r\n            : `${themeColor}.200`\r\n        }\r\n        borderLeftWidth={isSelected ? \"4px\" : \"1px\"}\r\n        borderWidth={isSelected ? \"2px\" : \"1px\"}\r\n        transition=\"all 0.2s\"\r\n        _hover={{\r\n          transform: \"translateY(-2px)\",\r\n          boxShadow: \"md\",\r\n        }}\r\n      >\r\n        {/* Color strip at the top based on stream or selection status */}\r\n        <Box\r\n          h=\"6px\"\r\n          w=\"100%\"\r\n          bg={\r\n            isSelected\r\n              ? hasClash\r\n                ? \"red.400\"\r\n                : courseColors[course.uuid] || \"green.400\"\r\n              : `linear-gradient(to right, var(--chakra-colors-${themeColor}-400), var(--chakra-colors-${themeColor}-500))`\r\n          }\r\n        />\r\n\r\n        <Box p={5}>\r\n          <Flex justifyContent=\"space-between\" alignItems=\"flex-start\" mb={3}>\r\n            <Box>\r\n              <Badge\r\n                colorScheme={\r\n                  isSelected\r\n                    ? hasClash\r\n                      ? \"red\"\r\n                      : courseColor || \"green\"\r\n                    : themeColor\r\n                }\r\n                rounded=\"full\"\r\n                px={2}\r\n                py={0.5}\r\n                fontSize=\"xs\"\r\n              >\r\n                Semester {course.semester}\r\n              </Badge>\r\n              <Badge\r\n                ml={2}\r\n                colorScheme={\r\n                  isSelected\r\n                    ? hasClash\r\n                      ? \"red\"\r\n                      : courseColor || \"green\"\r\n                    : themeColor\r\n                }\r\n                variant=\"subtle\"\r\n                rounded=\"full\"\r\n                px={2}\r\n                py={0.5}\r\n                fontSize=\"xs\"\r\n              >\r\n                {course.credits} credit{course.credits !== 1 ? \"s\" : \"\"}\r\n              </Badge>\r\n              {isFromCurrentSemester && (\r\n                <Badge\r\n                  ml={2}\r\n                  colorScheme=\"purple\"\r\n                  variant=\"solid\"\r\n                  rounded=\"full\"\r\n                  px={2}\r\n                  py={0.5}\r\n                  fontSize=\"xs\"\r\n                >\r\n                  Current\r\n                </Badge>\r\n              )}\r\n            </Box>\r\n\r\n            <IconButton\r\n              aria-label={\r\n                isSelected ? \"Remove from selection\" : \"Add to selection\"\r\n              }\r\n              icon={\r\n                isSelected ? (\r\n                  hasClash ? (\r\n                    <AlertCircle size={18} />\r\n                  ) : (\r\n                    <CheckCircle size={18} />\r\n                  )\r\n                ) : (\r\n                  <Calendar size={18} />\r\n                )\r\n              }\r\n              size=\"sm\"\r\n              colorScheme={\r\n                isSelected\r\n                  ? hasClash\r\n                    ? \"red\"\r\n                    : courseColor || \"green\"\r\n                  : themeColor\r\n              }\r\n              variant={isSelected ? \"solid\" : \"outline\"}\r\n              onClick={(e) => {\r\n                e.stopPropagation();\r\n                selectCourse(course);\r\n              }}\r\n            />\r\n          </Flex>\r\n\r\n          <Heading\r\n            size=\"md\"\r\n            mb={1}\r\n            noOfLines={1}\r\n            title={course.course_name}\r\n            color={\r\n              isSelected\r\n                ? hasClash\r\n                  ? \"red.700\"\r\n                  : `${courseColor}.700` || \"green.700\"\r\n                : `${themeColor}.700`\r\n            }\r\n          >\r\n            {course.course_name}\r\n          </Heading>\r\n\r\n          <Text\r\n            fontSize=\"sm\"\r\n            color={\r\n              isSelected\r\n                ? hasClash\r\n                  ? \"red.500\"\r\n                  : `${courseColor}.500` || \"green.500\"\r\n                : `${themeColor}.500`\r\n            }\r\n            fontFamily=\"mono\"\r\n            mb={4}\r\n          >\r\n            {course.course_code}\r\n          </Text>\r\n\r\n          <Text\r\n            fontSize=\"sm\"\r\n            color=\"gray.600\"\r\n            noOfLines={2}\r\n            mb={4}\r\n            title={course.description || \"No description available\"}\r\n          >\r\n            {course.description || \"No description available\"}\r\n          </Text>\r\n\r\n          <HStack spacing={4} mb={4}>\r\n            {course.professor_allocated && (\r\n              <Flex align=\"center\" gap={1.5}>\r\n                <Clock\r\n                  size={14}\r\n                  className={\r\n                    isSelected\r\n                      ? hasClash\r\n                        ? \"text-red-400\"\r\n                        : `text-${courseColor}-400` || \"text-green-400\"\r\n                      : `text-${themeColor}-400`\r\n                  }\r\n                />\r\n                <Text fontSize=\"xs\" color=\"gray.600\">\r\n                  {course.schedule && course.schedule.length > 0\r\n                    ? `${course.schedule.length} schedule slot${course.schedule.length !== 1 ? \"s\" : \"\"}`\r\n                    : \"No schedule\"}\r\n                </Text>\r\n              </Flex>\r\n            )}\r\n\r\n            {course.department?.dept_name && (\r\n              <Flex align=\"center\" gap={1.5}>\r\n                <Book\r\n                  size={14}\r\n                  className={\r\n                    isSelected\r\n                      ? hasClash\r\n                        ? \"text-red-400\"\r\n                        : `text-${courseColor}-400` || \"text-green-400\"\r\n                      : `text-${themeColor}-400`\r\n                  }\r\n                />\r\n                <Text fontSize=\"xs\" color=\"gray.600\">\r\n                  {course.professor_allocated || \"No professor assigned\"}\r\n                </Text>\r\n              </Flex>\r\n            )}\r\n          </HStack>\r\n\r\n          {isSelected && hasClash && (\r\n            <Alert\r\n              status=\"error\"\r\n              variant=\"left-accent\"\r\n              mb={4}\r\n              py={2}\r\n              fontSize=\"xs\"\r\n            >\r\n              <AlertIcon boxSize={4} />\r\n              <AlertTitle fontSize=\"xs\" mr={1}>\r\n                Timetable clash detected!\r\n              </AlertTitle>\r\n            </Alert>\r\n          )}\r\n\r\n          <Divider mb={4} />\r\n\r\n          <Button\r\n            size=\"sm\"\r\n            width=\"full\"\r\n            colorScheme={\r\n              isSelected\r\n                ? hasClash\r\n                  ? \"red\"\r\n                  : courseColor || \"purple\"\r\n                : themeColor\r\n            }\r\n            variant=\"outline\"\r\n            onClick={() => viewCourseDetails(course)}\r\n          >\r\n            View Details\r\n          </Button>\r\n        </Box>\r\n      </Box>\r\n    );\r\n  };\r\n\r\n  // Render the appropriate content based on loading and data state\r\n  const renderContent = () => {\r\n    if (loading) {\r\n      return (\r\n        <Flex justifyContent=\"center\" py={10}>\r\n          <Spinner size=\"xl\" color=\"purple.500\" />\r\n        </Flex>\r\n      );\r\n    }\r\n\r\n    if (noCoursesFound) {\r\n      return (\r\n        <Flex\r\n          direction=\"column\"\r\n          align=\"center\"\r\n          justify=\"center\"\r\n          bg=\"white\"\r\n          rounded=\"xl\"\r\n          shadow=\"md\"\r\n          p={8}\r\n          mt={4}\r\n        >\r\n          <Box p={4} bg=\"purple.50\" rounded=\"full\" mb={4}>\r\n            <Search size={40} className=\"text-purple-400\" />\r\n          </Box>\r\n          <Heading size=\"md\" mb={4} color=\"gray.700\">\r\n            No Courses Found in Database\r\n          </Heading>\r\n          <Text color=\"gray.500\" textAlign=\"center\" mb={4}>\r\n            It appears there are no courses in the database yet. \r\n          </Text>\r\n          \r\n          <Box bg=\"blue.50\" p={4} borderRadius=\"md\" mb={6} maxW=\"600px\" textAlign=\"left\">\r\n            <Heading size=\"sm\" mb={2} color=\"blue.700\">\r\n              Administrator Instructions:\r\n            </Heading>\r\n            <Text fontSize=\"sm\" color=\"gray.700\" mb={2}>\r\n              1. There is a CSV file named \"iiitd_final_courses.csv\" in the project root directory.\r\n            </Text>\r\n            <Text fontSize=\"sm\" color=\"gray.700\" mb={2}>\r\n              2. Go to Admin Dashboard {`>`} Bulk Course Upload.\r\n            </Text>\r\n            <Text fontSize=\"sm\" color=\"gray.700\">\r\n              3. Upload the CSV file to populate the course database.\r\n            </Text>\r\n          </Box>\r\n          \r\n          {/* Check if user is admin and show button */}\r\n          <Button\r\n            colorScheme=\"purple\"\r\n            leftIcon={<AlertCircle size={16} />}\r\n            onClick={() => navigate('/admin/bulk-upload')}\r\n            size=\"md\"\r\n          >\r\n            Go to Admin Dashboard\r\n          </Button>\r\n        </Flex>\r\n      );\r\n    }\r\n\r\n    if (filteredCourses.length === 0) {\r\n      return (\r\n        <Flex\r\n          direction=\"column\"\r\n          align=\"center\"\r\n          justify=\"center\"\r\n          bg=\"white\"\r\n          rounded=\"xl\"\r\n          shadow=\"md\"\r\n          p={8}\r\n          mt={4}\r\n        >\r\n          <Box p={4} bg=\"purple.50\" rounded=\"full\" mb={4}>\r\n            <Search size={40} className=\"text-purple-400\" />\r\n          </Box>\r\n          <Heading size=\"md\" mb={2} color=\"gray.700\">\r\n            No courses found\r\n          </Heading>\r\n          <Text color=\"gray.500\" textAlign=\"center\">\r\n            Try adjusting your search filters to find more courses\r\n          </Text>\r\n        </Flex>\r\n      );\r\n    }\r\n\r\n    return (\r\n      <Box>\r\n        {viewMode === \"list\" && (\r\n          <Grid\r\n            templateColumns={{\r\n              base: \"repeat(1, 1fr)\",\r\n              md: \"repeat(2, 1fr)\",\r\n              lg: \"repeat(3, 1fr)\",\r\n            }}\r\n            gap={6}\r\n          >\r\n            {filteredCourses.map((course) => (\r\n              <CourseCard key={course.uuid} course={course} />\r\n            ))}\r\n          </Grid>\r\n        )}\r\n\r\n        {viewMode === \"streams\" && (\r\n          <Tabs variant=\"soft-rounded\" colorScheme=\"purple\" isLazy>\r\n            <TabList\r\n              overflowX=\"auto\"\r\n              py={2}\r\n              className=\"flex-nowrap whitespace-nowrap\"\r\n            >\r\n              {Object.keys(coursesByStream).map((streamName) => (\r\n                <Tab key={streamName} px={4}>\r\n                  {streamName} ({coursesByStream[streamName].length})\r\n                </Tab>\r\n              ))}\r\n            </TabList>\r\n            <TabPanels>\r\n              {Object.entries(coursesByStream).map(([streamName, courses]) => (\r\n                <TabPanel key={streamName} px={0}>\r\n                  <Grid\r\n                    templateColumns={{\r\n                      base: \"repeat(1, 1fr)\",\r\n                      md: \"repeat(2, 1fr)\",\r\n                      lg: \"repeat(3, 1fr)\",\r\n                    }}\r\n                    gap={6}\r\n                  >\r\n                    {courses.map((course) => (\r\n                      <CourseCard key={course.uuid} course={course} />\r\n                    ))}\r\n                  </Grid>\r\n                </TabPanel>\r\n              ))}\r\n            </TabPanels>\r\n          </Tabs>\r\n        )}\r\n\r\n        {viewMode === \"semesters\" && (\r\n          <Tabs variant=\"soft-rounded\" colorScheme=\"purple\" isLazy>\r\n            <TabList\r\n              overflowX=\"auto\"\r\n              py={2}\r\n              className=\"flex-nowrap whitespace-nowrap\"\r\n            >\r\n              {coursesBySemester.map(({ semester, courses }) => (\r\n                <Tab key={semester} px={4}>\r\n                  Semester {semester} ({courses.length})\r\n                </Tab>\r\n              ))}\r\n            </TabList>\r\n            <TabPanels>\r\n              {coursesBySemester.map(({ semester, courses }) => (\r\n                <TabPanel key={semester} px={0}>\r\n                  <Grid\r\n                    templateColumns={{\r\n                      base: \"repeat(1, 1fr)\",\r\n                      md: \"repeat(2, 1fr)\",\r\n                      lg: \"repeat(3, 1fr)\",\r\n                    }}\r\n                    gap={6}\r\n                  >\r\n                    {courses.map((course) => (\r\n                      <CourseCard key={course.uuid} course={course} />\r\n                    ))}\r\n                  </Grid>\r\n                </TabPanel>\r\n              ))}\r\n            </TabPanels>\r\n          </Tabs>\r\n        )}\r\n      </Box>\r\n    );\r\n  };\r\n\r\n  return (\r\n    <>\r\n      <NavBar />\r\n      <Box className=\"min-h-screen bg-gradient-to-br from-indigo-50 to-purple-50 pb-16\">\r\n        <Box maxW=\"1200px\" margin=\"0 auto\" p={[4, 6, 8]}>\r\n          <Flex direction=\"column\" gap={6}>\r\n            {/* Header section */}\r\n            <Box className=\"bg-gradient-to-r from-indigo-600 to-purple-600 rounded-xl shadow-xl p-8 text-white\">\r\n              <Flex\r\n                direction={[\"column\", \"row\"]}\r\n                alignItems=\"center\"\r\n                gap={4}\r\n                position=\"relative\"\r\n              >\r\n                <Box className=\"bg-white/20 p-4 rounded-full backdrop-blur-sm\">\r\n                  <Calendar size={40} />\r\n                </Box>\r\n                <Box>\r\n                  <Heading size=\"xl\">Timetable Clash Checker</Heading>\r\n                  <Text fontSize=\"lg\" mt={2} opacity={0.9}>\r\n                    Select multiple courses to check for scheduling conflicts\r\n                  </Text>\r\n                </Box>\r\n                <HStack\r\n                  spacing={2}\r\n                  position={[\"static\", \"absolute\"]}\r\n                  right={4}\r\n                  top={4}\r\n                  mt={[4, 0]}\r\n                  ml={[\"auto\", 0]}\r\n                >\r\n                  {selectedCourses.length > 0 && (\r\n                    <Button\r\n                      leftIcon={<Calendar size={16} />}\r\n                      colorScheme=\"white\"\r\n                      variant=\"outline\"\r\n                      onClick={onTimetableOpen}\r\n                      size=\"sm\"\r\n                    >\r\n                      View Timetable\r\n                    </Button>\r\n                  )}\r\n                  <Button\r\n                    leftIcon={\r\n                      <Box as=\"span\" className=\"rotate-180 inline-block\">\r\n                        <svg\r\n                          xmlns=\"http://www.w3.org/2000/svg\"\r\n                          className=\"h-5 w-5\"\r\n                          fill=\"none\"\r\n                          viewBox=\"0 0 24 24\"\r\n                          stroke=\"currentColor\"\r\n                        >\r\n                          <path\r\n                            strokeLinecap=\"round\"\r\n                            strokeLinejoin=\"round\"\r\n                            strokeWidth={2}\r\n                            d=\"M10 19l-7-7m0 0l7-7m-7 7h18\"\r\n                          />\r\n                        </svg>\r\n                      </Box>\r\n                    }\r\n                    colorScheme=\"white\"\r\n                    variant=\"outline\"\r\n                    onClick={() => navigate(\"/academic-tools\")}\r\n                    size=\"sm\"\r\n                  >\r\n                    Back to Academic Tools\r\n                  </Button>\r\n                </HStack>\r\n              </Flex>\r\n            </Box>\r\n\r\n            {/* Selected courses and clash detection results */}\r\n            {selectedCourses.length > 0 && (\r\n              <Box className=\"bg-white rounded-xl shadow-lg p-6\">\r\n                <Flex justifyContent=\"space-between\" alignItems=\"center\" mb={4}>\r\n                  <Heading size=\"md\">Selected Courses</Heading>\r\n                  <HStack spacing={3}>\r\n                    <Tag\r\n                      size=\"md\"\r\n                      colorScheme={\r\n                        totalCourses >= MAX_COURSES ? \"orange\" : \"purple\"\r\n                      }\r\n                      variant=\"subtle\"\r\n                    >\r\n                      <TagLeftIcon as={Calendar} />\r\n                      <TagLabel fontWeight=\"bold\">\r\n                        {totalCourses}/{MAX_COURSES} Courses\r\n                      </TagLabel>\r\n                    </Tag>\r\n                    <Tag\r\n                      size=\"md\"\r\n                      colorScheme={\r\n                        totalCredits < MIN_CREDITS\r\n                          ? \"red\"\r\n                          : totalCredits >= creditLimit\r\n                            ? \"orange\"\r\n                            : \"blue\"\r\n                      }\r\n                      variant=\"subtle\"\r\n                    >\r\n                      <TagLeftIcon boxSize={3} as={Book} />\r\n                      <TagLabel fontWeight=\"bold\">\r\n                        {totalCredits}/{creditLimit} Credits\r\n                        {totalCredits < MIN_CREDITS && ` (Min: ${MIN_CREDITS})`}\r\n                      </TagLabel>\r\n                    </Tag>\r\n                    <Select\r\n                      size=\"sm\"\r\n                      value={creditLimit}\r\n                      onChange={(e) => setCreditLimit(Number(e.target.value))}\r\n                      width=\"100px\"\r\n                    >\r\n                      {CREDIT_LIMITS.map((limit) => (\r\n                        <option key={limit} value={limit}>\r\n                          {limit} Credits\r\n                        </option>\r\n                      ))}\r\n                    </Select>\r\n                  </HStack>\r\n                </Flex>\r\n\r\n                {hasAnyClashes ? (\r\n                  <Alert status=\"error\" mb={4}>\r\n                    <AlertIcon />\r\n                    <AlertTitle>Schedule conflicts detected!</AlertTitle>\r\n                    <AlertDescription>\r\n                      Some of your selected courses have time clashes. Check the\r\n                      details below.\r\n                    </AlertDescription>\r\n                  </Alert>\r\n                ) : (\r\n                  <Alert status=\"success\" mb={4}>\r\n                    <AlertIcon />\r\n                    <AlertTitle>No conflicts detected!</AlertTitle>\r\n                    <AlertDescription>\r\n                      Your selected courses don't have any schedule conflicts.\r\n                    </AlertDescription>\r\n                  </Alert>\r\n                )}\r\n\r\n                {/* Save to Current Semester Button */}\r\n                {selectedCourses.length > 0 && !hasAnyClashes && (\r\n                  <Flex justifyContent=\"center\" mb={4}>\r\n                    <Button\r\n                      colorScheme={\r\n                        totalCredits >= MIN_CREDITS ? \"green\" : \"gray\"\r\n                      }\r\n                      size=\"lg\"\r\n                      leftIcon={<CheckCircle size={20} />}\r\n                      onClick={saveToCurrentSemester}\r\n                      isLoading={saving}\r\n                      loadingText=\"Saving courses...\"\r\n                      disabled={hasAnyClashes || totalCredits < MIN_CREDITS}\r\n                    >\r\n                      {isSavedToCurrentSemester ? \"Update Current Semester\" : \"Save to Current Semester\"}\r\n                      {totalCredits < MIN_CREDITS &&\r\n                        ` (Need ${MIN_CREDITS - totalCredits} more credits)`}\r\n                    </Button>\r\n                  </Flex>\r\n                )}\r\n\r\n                {/* Selected courses list with clash information */}\r\n                <SimpleGrid columns={{ base: 1, md: 2 }} spacing={4} mb={6}>\r\n                  {selectedCourses.map((course) => {\r\n                    const clashResult = getClashResultForCourse(course.uuid);\r\n                    const hasClash = clashResult?.hasClash || false;\r\n                    const courseColor =\r\n                      courseColors[course.uuid] || \"green.400\";\r\n                    const colorBase = hasClash\r\n                      ? \"red\"\r\n                      : courseColor.split(\".\")[0];\r\n\r\n                    return (\r\n                      <Box\r\n                        key={course.uuid}\r\n                        p={4}\r\n                        borderWidth=\"1px\"\r\n                        borderColor={hasClash ? \"red.300\" : `${courseColor}`}\r\n                        bg={hasClash ? \"red.50\" : `${colorBase}.50`}\r\n                        borderLeft={`4px solid ${hasClash ? \"red.400\" : courseColor}`}\r\n                        rounded=\"md\"\r\n                        position=\"relative\"\r\n                        transition=\"all 0.2s\"\r\n                        boxShadow=\"sm\"\r\n                        _hover={{\r\n                          boxShadow: \"md\",\r\n                          bg: hasClash ? \"red.100\" : `${colorBase}.100`,\r\n                        }}\r\n                      >\r\n                        <Flex justify=\"space-between\" align=\"flex-start\">\r\n                          <Box>\r\n                            <Heading\r\n                              size=\"sm\"\r\n                              mb={1}\r\n                              color={hasClash ? \"red.700\" : `${colorBase}.700`}\r\n                            >\r\n                              {course.course_code}: {course.course_name}\r\n                            </Heading>\r\n\r\n                            {course.schedule && course.schedule.length > 0 ? (\r\n                              <VStack align=\"start\" spacing={1} mt={2}>\r\n                                {course.schedule.map((slot, index) => (\r\n                                  <Text key={index} fontSize=\"xs\">\r\n                                    {slot.day}, {slot.start_time} -{\" \"}\r\n                                    {slot.end_time}\r\n                                  </Text>\r\n                                ))}\r\n                              </VStack>\r\n                            ) : (\r\n                              <Text fontSize=\"xs\" color=\"gray.500\">\r\n                                No schedule information available\r\n                              </Text>\r\n                            )}\r\n\r\n                            {hasClash && (\r\n                              <Box mt={3}>\r\n                                <Text\r\n                                  fontSize=\"sm\"\r\n                                  color=\"red.600\"\r\n                                  fontWeight=\"bold\"\r\n                                >\r\n                                  Clashes with:\r\n                                </Text>\r\n                                <VStack align=\"start\" spacing={1} mt={1}>\r\n                                  {clashResult?.clashingWith.map((clashId) => {\r\n                                    const clashCourse = getCourseById(clashId);\r\n                                    return clashCourse ? (\r\n                                      <Text key={clashId} fontSize=\"xs\">\r\n                                        {clashCourse.course_code}:{\" \"}\r\n                                        {clashCourse.course_name}\r\n                                      </Text>\r\n                                    ) : null;\r\n                                  })}\r\n                                </VStack>\r\n                              </Box>\r\n                            )}\r\n                          </Box>\r\n\r\n                          <IconButton\r\n                            aria-label=\"Remove course\"\r\n                            icon={<X size={14} />}\r\n                            size=\"sm\"\r\n                            colorScheme={hasClash ? \"red\" : colorBase}\r\n                            variant=\"ghost\"\r\n                            onClick={() => selectCourse(course)}\r\n                          />\r\n                        </Flex>\r\n                      </Box>\r\n                    );\r\n                  })}\r\n                </SimpleGrid>\r\n\r\n                {/* Course cards for quick view */}\r\n                <VStack spacing={2} align=\"stretch\" mb={4}>\r\n                  {selectedCourses.map((course, index) => {\r\n                    const courseColor = getCourseColor(index);\r\n                    const colorBase = courseColor.split(\".\")[0];\r\n\r\n                    return (\r\n                      <Flex\r\n                        key={`course-card-${course.course_code}`}\r\n                        p={2}\r\n                        justify=\"space-between\"\r\n                        align=\"center\"\r\n                        borderRadius=\"md\"\r\n                        borderLeft={`4px solid ${courseColor}`}\r\n                        bg={`${colorBase}.50`}\r\n                        boxShadow=\"sm\"\r\n                        transition=\"all 0.2s\"\r\n                        _hover={{\r\n                          boxShadow: \"md\",\r\n                          bg: `${colorBase}.100`,\r\n                        }}\r\n                      >\r\n                        <Box>\r\n                          <Flex align=\"center\">\r\n                            <Text\r\n                              fontWeight=\"bold\"\r\n                              fontSize=\"sm\"\r\n                              color={`${colorBase}.700`}\r\n                            >\r\n                              {course.course_code}\r\n                            </Text>\r\n                            <Badge ml={2} colorScheme={colorBase} size=\"sm\">\r\n                              {course.credits} Credits\r\n                            </Badge>\r\n                          </Flex>\r\n                          <Text fontSize=\"xs\" noOfLines={1}>\r\n                            {course.course_name}\r\n                          </Text>\r\n                        </Box>\r\n                        <IconButton\r\n                          aria-label=\"Remove course\"\r\n                          icon={<MinusIcon />}\r\n                          colorScheme={colorBase}\r\n                          size=\"xs\"\r\n                          onClick={() => selectCourse(course)}\r\n                        />\r\n                      </Flex>\r\n                    );\r\n                  })}\r\n                </VStack>\r\n\r\n                {/* Weekly timetable visualization */}\r\n                <Box mb={6}>\r\n                  <Flex\r\n                    justifyContent=\"space-between\"\r\n                    alignItems=\"center\"\r\n                    mb={4}\r\n                  >\r\n                    <Heading size=\"md\">Timetable Visualization</Heading>\r\n                    <HStack>\r\n                      <Button\r\n                        size=\"sm\"\r\n                        leftIcon={<Calendar size={14} />}\r\n                        colorScheme=\"purple\"\r\n                        onClick={onTimetableOpen}\r\n                        variant=\"outline\"\r\n                      >\r\n                        View Full Timetable\r\n                      </Button>\r\n                    </HStack>\r\n                  </Flex>\r\n\r\n                  <Box\r\n                    maxHeight=\"400px\"\r\n                    overflowY=\"auto\"\r\n                    overflowX=\"auto\"\r\n                    borderWidth=\"1px\"\r\n                    borderColor=\"gray.200\"\r\n                    borderRadius=\"md\"\r\n                  >\r\n                    {/* Grid-based timetable - Days vertical, Time horizontal */}\r\n                    <Box\r\n                      display=\"grid\"\r\n                      gridTemplateColumns={`100px repeat(${weeklyTimetable.timeSlots.length}, 80px)`}\r\n                      gridTemplateRows={`40px repeat(${weeklyTimetable.days.length}, 60px)`}\r\n                      minW=\"1400px\"\r\n                      bg=\"white\"\r\n                      gap=\"1px\"\r\n                    >\r\n                      {/* Top-left corner */}\r\n                      <Box\r\n                        bg=\"gray.50\"\r\n                        border=\"1px solid\"\r\n                        borderColor=\"gray.200\"\r\n                        display=\"flex\"\r\n                        alignItems=\"center\"\r\n                        justifyContent=\"center\"\r\n                        fontWeight=\"bold\"\r\n                        fontSize=\"sm\"\r\n                      >\r\n                        Day / Time\r\n                      </Box>\r\n\r\n                      {/* Time header row */}\r\n                      {weeklyTimetable.timeSlots.map((timeSlot) => (\r\n                        <Box\r\n                          key={timeSlot}\r\n                          bg=\"gray.50\"\r\n                          border=\"1px solid\"\r\n                          borderColor=\"gray.200\"\r\n                          display=\"flex\"\r\n                          alignItems=\"center\"\r\n                          justifyContent=\"center\"\r\n                          fontWeight=\"medium\"\r\n                          fontSize=\"xs\"\r\n                          textAlign=\"center\"\r\n                        >\r\n                          {timeSlot}\r\n                        </Box>\r\n                      ))}\r\n\r\n                      {/* Day rows and course blocks */}\r\n                      {weeklyTimetable.days.map((day, dayIndex) => (\r\n                        <React.Fragment key={day}>\r\n                          {/* Day label */}\r\n                          <Box\r\n                            bg=\"gray.50\"\r\n                            border=\"1px solid\"\r\n                            borderColor=\"gray.200\"\r\n                            display=\"flex\"\r\n                            alignItems=\"center\"\r\n                            justifyContent=\"center\"\r\n                            fontWeight=\"bold\"\r\n                            fontSize=\"sm\"\r\n                          >\r\n                            {day}\r\n                          </Box>\r\n\r\n                          {/* Time slots for this day */}\r\n                          {weeklyTimetable.timeSlots.map(\r\n                            (timeSlot, timeIndex) => {\r\n                              // Check if this slot should be rendered or is part of a spanning block\r\n                              const courseBlock = weeklyTimetable.courseBlocks[\r\n                                day\r\n                              ].find(\r\n                                (block) => block.startSlotIndex === timeIndex,\r\n                              );\r\n\r\n                              if (courseBlock) {\r\n                                // Render spanning block\r\n                                const courseColor =\r\n                                  courseColors[courseBlock.course.uuid] ||\r\n                                  \"green.400\";\r\n                                const colorBase = courseColor.split(\".\")[0];\r\n                                const hasClash =\r\n                                  weeklyTimetable.grid[day][timeSlot].length >\r\n                                  1;\r\n\r\n                                return (\r\n                                  <Box\r\n                                    key={`${day}-${timeSlot}-block`}\r\n                                    gridColumnStart={timeIndex + 2}\r\n                                    gridColumnEnd={\r\n                                      timeIndex + 2 + courseBlock.duration\r\n                                    }\r\n                                    gridRow={dayIndex + 2}\r\n                                    bg={\r\n                                      hasClash ? \"red.100\" : `${colorBase}.100`\r\n                                    }\r\n                                    border=\"2px solid\"\r\n                                    borderColor={\r\n                                      hasClash ? \"red.400\" : courseColor\r\n                                    }\r\n                                    borderRadius=\"md\"\r\n                                    display=\"flex\"\r\n                                    alignItems=\"center\"\r\n                                    justifyContent=\"center\"\r\n                                    fontWeight=\"bold\"\r\n                                    fontSize=\"sm\"\r\n                                    color={\r\n                                      hasClash ? \"red.700\" : `${colorBase}.700`\r\n                                    }\r\n                                    position=\"relative\"\r\n                                    boxShadow=\"sm\"\r\n                                    transition=\"all 0.2s\"\r\n                                    _hover={{\r\n                                      bg: hasClash\r\n                                        ? \"red.200\"\r\n                                        : `${colorBase}.200`,\r\n                                      boxShadow: \"md\",\r\n                                      transform: \"scale(1.02)\",\r\n                                    }}\r\n                                    cursor=\"pointer\"\r\n                                    onClick={() =>\r\n                                      viewCourseDetails(courseBlock.course)\r\n                                    }\r\n                                    p={1}\r\n                                  >\r\n                                    <VStack spacing={0}>\r\n                                      <Text\r\n                                        fontWeight=\"bold\"\r\n                                        fontSize=\"xs\"\r\n                                        textAlign=\"center\"\r\n                                      >\r\n                                        {courseBlock.course.course_code}\r\n                                      </Text>\r\n                                      {courseBlock.duration > 2 && (\r\n                                        <Text\r\n                                          fontSize=\"10px\"\r\n                                          opacity={0.8}\r\n                                          textAlign=\"center\"\r\n                                        >\r\n                                          {courseBlock.course.course_name\r\n                                            .length > 15\r\n                                            ? courseBlock.course.course_name.substring(\r\n                                                0,\r\n                                                15,\r\n                                              ) + \"...\"\r\n                                            : courseBlock.course.course_name}\r\n                                        </Text>\r\n                                      )}\r\n                                      {hasClash && (\r\n                                        <Text\r\n                                          fontSize=\"9px\"\r\n                                          bg=\"red.200\"\r\n                                          color=\"red.700\"\r\n                                          px={1}\r\n                                          borderRadius=\"sm\"\r\n                                        >\r\n                                          CLASH\r\n                                        </Text>\r\n                                      )}\r\n                                    </VStack>\r\n                                  </Box>\r\n                                );\r\n                              } else if (\r\n                                !weeklyTimetable.occupied[day][timeIndex]\r\n                              ) {\r\n                                // Render empty cell only if not occupied by a spanning block\r\n                                return (\r\n                                  <Box\r\n                                    key={`${day}-${timeSlot}-empty`}\r\n                                    border=\"1px solid\"\r\n                                    borderColor=\"gray.200\"\r\n                                    bg=\"white\"\r\n                                  />\r\n                                );\r\n                              }\r\n                              return null;\r\n                            },\r\n                          )}\r\n                        </React.Fragment>\r\n                      ))}\r\n                    </Box>\r\n                  </Box>\r\n\r\n                  {/* Add color legend */}\r\n                  {selectedCourses.length > 0 && (\r\n                    <Flex mt={3} flexWrap=\"wrap\" gap={2}>\r\n                      <Text\r\n                        fontSize=\"sm\"\r\n                        fontWeight=\"medium\"\r\n                        color=\"gray.600\"\r\n                        mr={2}\r\n                      >\r\n                        Color Legend:\r\n                      </Text>\r\n                      {selectedCourses.map((course) => {\r\n                        const courseColor =\r\n                          courseColors[course.uuid] || \"green.400\";\r\n                        const colorBase = courseColor.split(\".\")[0];\r\n\r\n                        return (\r\n                          <Box\r\n                            key={`legend-${course.uuid}`}\r\n                            display=\"inline-flex\"\r\n                            alignItems=\"center\"\r\n                            bg={`${colorBase}.50`}\r\n                            color={`${colorBase}.700`}\r\n                            borderLeft={`4px solid ${courseColor}`}\r\n                            px={2}\r\n                            py={1}\r\n                            borderRadius=\"md\"\r\n                            fontSize=\"xs\"\r\n                            fontWeight=\"bold\"\r\n                            boxShadow=\"sm\"\r\n                          >\r\n                            {course.course_code}\r\n                          </Box>\r\n                        );\r\n                      })}\r\n                      <Box\r\n                        display=\"inline-flex\"\r\n                        alignItems=\"center\"\r\n                        bg=\"red.100\"\r\n                        color=\"red.700\"\r\n                        borderLeft=\"4px solid red.400\"\r\n                        px={2}\r\n                        py={1}\r\n                        borderRadius=\"md\"\r\n                        fontSize=\"xs\"\r\n                        fontWeight=\"bold\"\r\n                        boxShadow=\"sm\"\r\n                      >\r\n                        Clash\r\n                      </Box>\r\n                    </Flex>\r\n                  )}\r\n                </Box>\r\n              </Box>\r\n            )}\r\n\r\n            {/* Filters and search */}\r\n            <Box className=\"bg-white rounded-xl shadow-lg p-6\">\r\n              {!noCoursesFound && (\r\n                <>\r\n                  <Flex direction={[\"column\", \"row\"]} gap={4} mb={6} wrap=\"wrap\">\r\n                    <Flex flex={1} position=\"relative\">\r\n                      <Input\r\n                        placeholder=\"Search courses...\"\r\n                        value={filters.search}\r\n                        onChange={(e) =>\r\n                          handleFilterChange(\"search\", e.target.value)\r\n                        }\r\n                        pl={10}\r\n                        bg=\"gray.50\"\r\n                        borderColor=\"gray.200\"\r\n                        _focus={{\r\n                          borderColor: \"purple.400\",\r\n                          boxShadow: \"0 0 0 1px var(--chakra-colors-purple-400)\",\r\n                        }}\r\n                      />\r\n                      <Box\r\n                        position=\"absolute\"\r\n                        left={3}\r\n                        top=\"50%\"\r\n                        transform=\"translateY(-50%)\"\r\n                      >\r\n                        <Search size={18} opacity={0.5} />\r\n                      </Box>\r\n                    </Flex>\r\n\r\n                    <Select\r\n                      placeholder=\"Semester\"\r\n                      value={filters.semester}\r\n                      onChange={(e) =>\r\n                        handleFilterChange(\"semester\", e.target.value)\r\n                      }\r\n                      maxW={[\"100%\", \"150px\"]}\r\n                      bg=\"gray.50\"\r\n                      borderColor=\"gray.200\"\r\n                      _focus={{\r\n                        borderColor: \"purple.400\",\r\n                        boxShadow: \"0 0 0 1px var(--chakra-colors-purple-400)\",\r\n                      }}\r\n                    >\r\n                      {[1, 2, 3, 4, 5, 6, 7, 8].map((sem) => (\r\n                        <option key={sem} value={sem}>\r\n                          Semester {sem}\r\n                        </option>\r\n                      ))}\r\n                    </Select>\r\n\r\n                    <Select\r\n                      placeholder=\"Department\"\r\n                      value={filters.department}\r\n                      onChange={(e) =>\r\n                        handleFilterChange(\"department\", e.target.value)\r\n                      }\r\n                      maxW={[\"100%\", \"180px\"]}\r\n                      bg=\"gray.50\"\r\n                      borderColor=\"gray.200\"\r\n                      _focus={{\r\n                        borderColor: \"purple.400\",\r\n                        boxShadow: \"0 0 0 1px var(--chakra-colors-purple-400)\",\r\n                      }}\r\n                    >\r\n                      {departments.map((dept) => (\r\n                        <option key={dept} value={dept}>\r\n                          {dept}\r\n                        </option>\r\n                      ))}\r\n                    </Select>\r\n\r\n                    <Button\r\n                      leftIcon={<Filter size={16} />}\r\n                      onClick={() =>\r\n                        setFilters({\r\n                          search: \"\",\r\n                          semester: \"\",\r\n                          department: \"\",\r\n                          credits: \"\",\r\n                          sortBy: \"name\",\r\n                          sortOrder: \"asc\",\r\n                        })\r\n                      }\r\n                      variant=\"outline\"\r\n                      colorScheme=\"purple\"\r\n                      size=\"md\"\r\n                    >\r\n                      Reset Filters\r\n                    </Button>\r\n                  </Flex>\r\n                  </>\r\n              )}\r\n\r\n              {renderContent()}\r\n            </Box>\r\n          </Flex>\r\n        </Box>\r\n      </Box>\r\n\r\n      {/* Course details modal */}\r\n      <Modal\r\n        isOpen={isDetailsOpen}\r\n        onClose={onDetailsClose}\r\n        size=\"xl\"\r\n        scrollBehavior=\"inside\"\r\n      >\r\n        <ModalOverlay backdropFilter=\"blur(2px)\" />\r\n        <ModalContent rounded=\"xl\" overflow=\"hidden\">\r\n          {selectedCourseDetails && (\r\n            <>\r\n              <Box\r\n                h=\"8px\"\r\n                w=\"100%\"\r\n                className={`bg-gradient-to-r ${\r\n                  (!selectedCourseDetails?.semester || selectedCourseDetails.semester <= 2)\r\n                    ? \"from-green-400 to-green-500\"\r\n                    : selectedCourseDetails.semester <= 4\r\n                      ? \"from-blue-400 to-blue-500\"\r\n                      : selectedCourseDetails.semester <= 6\r\n                        ? \"from-purple-400 to-purple-500\"\r\n                        : \"from-red-400 to-red-500\"\r\n                }`}\r\n              />\r\n\r\n              <ModalHeader pb={2}>\r\n                <Flex justify=\"space-between\" align=\"center\" w=\"full\">\r\n                  <Text\r\n                    fontSize=\"2xl\"\r\n                    fontWeight=\"bold\"\r\n                    className=\"text-gray-800\"\r\n                  >\r\n                    {selectedCourseDetails.course_name}\r\n                  </Text>\r\n                  <ModalCloseButton position=\"static\" />\r\n                </Flex>\r\n                <Text fontSize=\"md\" color=\"gray.500\" fontFamily=\"mono\">\r\n                  {selectedCourseDetails.course_code}\r\n                </Text>\r\n              </ModalHeader>\r\n\r\n              <Divider />\r\n\r\n              <ModalBody pt={4}>\r\n                <SimpleGrid columns={{ base: 1, md: 2 }} spacing={4} mb={6}>\r\n                  <Box>\r\n                    <Text fontSize=\"sm\" color=\"gray.500\" fontWeight=\"medium\">\r\n                      Department\r\n                    </Text>\r\n                    <Text>\r\n                      {selectedCourseDetails.department?.dept_name ||\r\n                        \"Not specified\"}\r\n                    </Text>\r\n                  </Box>\r\n                  <Box>\r\n                    <Text fontSize=\"sm\" color=\"gray.500\" fontWeight=\"medium\">\r\n                      Stream\r\n                    </Text>\r\n                    <Text>\r\n                      {selectedCourseDetails.department?.dept_name ||\r\n                        \"Not specified\"}\r\n                    </Text>\r\n                  </Box>\r\n                  <Box>\r\n                    <Text fontSize=\"sm\" color=\"gray.500\" fontWeight=\"medium\">\r\n                      Semester\r\n                    </Text>\r\n                    <Text>Semester {selectedCourseDetails.semester}</Text>\r\n                  </Box>\r\n                  <Box>\r\n                    <Text fontSize=\"sm\" color=\"gray.500\" fontWeight=\"medium\">\r\n                      Credits\r\n                    </Text>\r\n                    <Text>\r\n                      {selectedCourseDetails.credits} credit\r\n                      {selectedCourseDetails.credits !== 1 ? \"s\" : \"\"}\r\n                    </Text>\r\n                  </Box>\r\n                  <Box>\r\n                    <Text fontSize=\"sm\" color=\"gray.500\" fontWeight=\"medium\">\r\n                      Instructor\r\n                    </Text>\r\n                    <Text>\r\n                      {selectedCourseDetails.professor_allocated ||\r\n                        \"Not specified\"}\r\n                    </Text>\r\n                  </Box>\r\n                </SimpleGrid>\r\n\r\n                <Box mb={6}>\r\n                  <Text\r\n                    fontSize=\"sm\"\r\n                    color=\"gray.500\"\r\n                    fontWeight=\"medium\"\r\n                    mb={1}\r\n                  >\r\n                    Description\r\n                  </Text>\r\n                  <Text fontSize=\"md\" whiteSpace=\"pre-wrap\">\r\n                    {selectedCourseDetails.description ||\r\n                      \"No description available for this course.\"}\r\n                  </Text>\r\n                </Box>\r\n\r\n                {selectedCourseDetails.prerequisites &&\r\n                  selectedCourseDetails.prerequisites.length > 0 && (\r\n                    <Box mb={6}>\r\n                      <Text\r\n                        fontSize=\"sm\"\r\n                        color=\"gray.500\"\r\n                        fontWeight=\"medium\"\r\n                        mb={2}\r\n                      >\r\n                        Prerequisites\r\n                      </Text>\r\n                      <Flex gap={2} flexWrap=\"wrap\">\r\n                        {selectedCourseDetails.prerequisites.map((prereq) => (\r\n                          <Tag\r\n                            key={prereq}\r\n                            size=\"md\"\r\n                            colorScheme=\"blue\"\r\n                            variant=\"subtle\"\r\n                          >\r\n                            {prereq}\r\n                          </Tag>\r\n                        ))}\r\n                      </Flex>\r\n                    </Box>\r\n                  )}\r\n\r\n                {selectedCourseDetails.schedule &&\r\n                  selectedCourseDetails.schedule.length > 0 && (\r\n                    <Box mb={6}>\r\n                      <Text\r\n                        fontSize=\"sm\"\r\n                        color=\"gray.500\"\r\n                        fontWeight=\"medium\"\r\n                        mb={2}\r\n                      >\r\n                        Schedule\r\n                      </Text>\r\n                      <VStack align=\"stretch\" spacing={2}>\r\n                        {selectedCourseDetails.schedule.map((slot, index) => (\r\n                          <Flex\r\n                            key={index}\r\n                            bg=\"gray.50\"\r\n                            p={3}\r\n                            rounded=\"md\"\r\n                            align=\"center\"\r\n                            justifyContent=\"space-between\"\r\n                          >\r\n                            <HStack spacing={4}>\r\n                              <Tag\r\n                                size=\"sm\"\r\n                                colorScheme=\"purple\"\r\n                                variant=\"subtle\"\r\n                                width=\"90px\"\r\n                                justifyContent=\"center\"\r\n                              >\r\n                                {slot.day}\r\n                              </Tag>\r\n                              <Flex alignItems=\"center\" gap={1}>\r\n                                <Clock size={14} className=\"text-gray-400\" />\r\n                                <Text fontSize=\"sm\">\r\n                                  {slot.start_time} - {slot.end_time}\r\n                                </Text>\r\n                              </Flex>\r\n                            </HStack>\r\n                            {slot.room && (\r\n                              <Text fontSize=\"xs\" color=\"gray.500\">\r\n                                Room: {slot.room}\r\n                              </Text>\r\n                            )}\r\n                          </Flex>\r\n                        ))}\r\n                      </VStack>\r\n                    </Box>\r\n                  )}\r\n              </ModalBody>\r\n\r\n              <ModalFooter borderTop=\"1px\" borderColor=\"gray.100\" pt={4}>\r\n                <Button colorScheme=\"gray\" mr={3} onClick={onDetailsClose}>\r\n                  Close\r\n                </Button>\r\n                <Button\r\n                  colorScheme=\"purple\"\r\n                  leftIcon={\r\n                    selectedCourses.some(\r\n                      (c) => c.uuid === selectedCourseDetails.uuid,\r\n                    ) ? (\r\n                      <BookmarkCheck size={18} />\r\n                    ) : (\r\n                      <Calendar size={18} />\r\n                    )\r\n                  }\r\n                  onClick={() => selectCourse(selectedCourseDetails)}\r\n                >\r\n                  {selectedCourses.some(\r\n                    (c) => c.uuid === selectedCourseDetails.uuid,\r\n                  )\r\n                    ? \"Remove from Selection\"\r\n                    : \"Add to Selection\"}\r\n                </Button>\r\n              </ModalFooter>\r\n            </>\r\n          )}\r\n        </ModalContent>\r\n      </Modal>\r\n\r\n      {/* Full timetable visualization modal */}\r\n      <Modal\r\n        isOpen={isTimetableOpen}\r\n        onClose={onTimetableClose}\r\n        size=\"6xl\"\r\n        scrollBehavior=\"inside\"\r\n      >\r\n        <ModalOverlay backdropFilter=\"blur(2px)\" />\r\n        <ModalContent rounded=\"xl\">\r\n          <ModalHeader>Weekly Timetable View</ModalHeader>\r\n          <ModalCloseButton />\r\n          <ModalBody>\r\n            <Box overflowX=\"auto\">\r\n              {/* Grid-based timetable for modal */}\r\n              <Box\r\n                display=\"grid\"\r\n                gridTemplateColumns={`100px repeat(${weeklyTimetable.days.length}, 1fr)`}\r\n                gridTemplateRows={`50px repeat(${weeklyTimetable.timeSlots.length}, 50px)`}\r\n                minW=\"900px\"\r\n                bg=\"white\"\r\n                gap=\"1px\"\r\n                border=\"1px solid\"\r\n                borderColor=\"gray.200\"\r\n                borderRadius=\"md\"\r\n              >\r\n                {/* Header row */}\r\n                <Box\r\n                  bg=\"gray.50\"\r\n                  display=\"flex\"\r\n                  alignItems=\"center\"\r\n                  justifyContent=\"center\"\r\n                  fontWeight=\"bold\"\r\n                  fontSize=\"md\"\r\n                  borderRadius=\"md\"\r\n                >\r\n                  Time\r\n                </Box>\r\n                {weeklyTimetable.days.map((day) => (\r\n                  <Box\r\n                    key={day}\r\n                    bg=\"gray.50\"\r\n                    display=\"flex\"\r\n                    alignItems=\"center\"\r\n                    justifyContent=\"center\"\r\n                    fontWeight=\"bold\"\r\n                    fontSize=\"md\"\r\n                    borderRadius=\"md\"\r\n                  >\r\n                    {day}\r\n                  </Box>\r\n                ))}\r\n\r\n                {/* Time slots and course blocks */}\r\n                {weeklyTimetable.timeSlots.map((timeSlot, timeIndex) => (\r\n                  <React.Fragment key={timeSlot}>\r\n                    {/* Time label */}\r\n                    <Box\r\n                      bg=\"gray.50\"\r\n                      display=\"flex\"\r\n                      alignItems=\"center\"\r\n                      justifyContent=\"center\"\r\n                      fontWeight=\"medium\"\r\n                      fontSize=\"sm\"\r\n                      borderRadius=\"md\"\r\n                    >\r\n                      {timeSlot}\r\n                    </Box>\r\n\r\n                    {/* Day columns */}\r\n                    {weeklyTimetable.days.map((day, dayIndex) => {\r\n                      // Check if this slot should be rendered or is part of a spanning block\r\n                      const courseBlock = weeklyTimetable.courseBlocks[\r\n                        day\r\n                      ].find((block) => block.startSlotIndex === timeIndex);\r\n\r\n                      if (courseBlock) {\r\n                        // Render spanning block\r\n                        const courseColor =\r\n                          courseColors[courseBlock.course.uuid] || \"green.400\";\r\n                        const colorBase = courseColor.split(\".\")[0];\r\n                        const hasClash =\r\n                          weeklyTimetable.grid[day][timeSlot].length > 1;\r\n\r\n                        return (\r\n                          <Box\r\n                            key={`${day}-${timeSlot}-modal-block`}\r\n                            gridRowStart={timeIndex + 2}\r\n                            gridRowEnd={timeIndex + 2 + courseBlock.duration}\r\n                            gridColumn={dayIndex + 2}\r\n                            bg={hasClash ? \"red.100\" : `${colorBase}.100`}\r\n                            border=\"3px solid\"\r\n                            borderColor={hasClash ? \"red.400\" : courseColor}\r\n                            borderRadius=\"lg\"\r\n                            display=\"flex\"\r\n                            flexDirection=\"column\"\r\n                            alignItems=\"center\"\r\n                            justifyContent=\"center\"\r\n                            fontWeight=\"bold\"\r\n                            fontSize=\"md\"\r\n                            color={hasClash ? \"red.700\" : `${colorBase}.700`}\r\n                            position=\"relative\"\r\n                            boxShadow=\"lg\"\r\n                            transition=\"all 0.2s\"\r\n                            _hover={{\r\n                              bg: hasClash ? \"red.200\" : `${colorBase}.200`,\r\n                              boxShadow: \"xl\",\r\n                              transform: \"scale(1.02)\",\r\n                            }}\r\n                            cursor=\"pointer\"\r\n                            onClick={() =>\r\n                              viewCourseDetails(courseBlock.course)\r\n                            }\r\n                            p={2}\r\n                          >\r\n                            <Text\r\n                              fontWeight=\"bold\"\r\n                              fontSize=\"lg\"\r\n                              textAlign=\"center\"\r\n                            >\r\n                              {courseBlock.course.course_code}\r\n                            </Text>\r\n                            {courseBlock.duration > 1 && (\r\n                              <Text\r\n                                fontSize=\"sm\"\r\n                                opacity={0.9}\r\n                                textAlign=\"center\"\r\n                                mt={1}\r\n                              >\r\n                                {courseBlock.course.course_name.length > 25\r\n                                  ? courseBlock.course.course_name.substring(\r\n                                      0,\r\n                                      25,\r\n                                    ) + \"...\"\r\n                                  : courseBlock.course.course_name}\r\n                              </Text>\r\n                            )}\r\n                            <Text fontSize=\"xs\" opacity={0.7} mt={1}>\r\n                              {\r\n                                courseBlock.course.schedule.find(\r\n                                  (s) => s.day === day,\r\n                                )?.start_time\r\n                              }{\" \"}\r\n                              -{\" \"}\r\n                              {\r\n                                courseBlock.course.schedule.find(\r\n                                  (s) => s.day === day,\r\n                                )?.end_time\r\n                              }\r\n                            </Text>\r\n                            {hasClash && (\r\n                              <Text\r\n                                fontSize=\"sm\"\r\n                                bg=\"red.200\"\r\n                                color=\"red.700\"\r\n                                px={2}\r\n                                py={1}\r\n                                borderRadius=\"md\"\r\n                                mt={1}\r\n                              >\r\n                                CLASH DETECTED\r\n                              </Text>\r\n                            )}\r\n                          </Box>\r\n                        );\r\n                      } else if (!weeklyTimetable.occupied[day][timeIndex]) {\r\n                        // Render empty cell only if not occupied by a spanning block\r\n                        return (\r\n                          <Box\r\n                            key={`${day}-${timeSlot}-modal-empty`}\r\n                            bg=\"white\"\r\n                            borderRadius=\"md\"\r\n                          />\r\n                        );\r\n                      }\r\n                      return null;\r\n                    })}\r\n                  </React.Fragment>\r\n                ))}\r\n              </Box>\r\n            </Box>\r\n\r\n            {/* Color legend for modal */}\r\n            {selectedCourses.length > 0 && (\r\n              <Flex\r\n                mt={4}\r\n                flexWrap=\"wrap\"\r\n                gap={2}\r\n                borderTop=\"1px solid\"\r\n                borderColor=\"gray.100\"\r\n                pt={4}\r\n              >\r\n                <Text fontSize=\"sm\" fontWeight=\"medium\" color=\"gray.700\" mr={2}>\r\n                  Color Legend:\r\n                </Text>\r\n                {selectedCourses.map((course) => {\r\n                  const courseColor = courseColors[course.uuid] || \"green.400\";\r\n                  const colorBase = courseColor.split(\".\")[0];\r\n\r\n                  return (\r\n                    <Box\r\n                      key={`legend-modal-${course.uuid}`}\r\n                      display=\"inline-flex\"\r\n                      alignItems=\"center\"\r\n                      bg={`${colorBase}.50`}\r\n                      color={`${colorBase}.700`}\r\n                      borderLeft={`4px solid ${courseColor}`}\r\n                      px={3}\r\n                      py={1}\r\n                      borderRadius=\"md\"\r\n                      fontSize=\"sm\"\r\n                      fontWeight=\"bold\"\r\n                      boxShadow=\"sm\"\r\n                    >\r\n                      {course.course_code}\r\n                    </Box>\r\n                  );\r\n                })}\r\n                <Box\r\n                  display=\"inline-flex\"\r\n                  alignItems=\"center\"\r\n                  bg=\"red.100\"\r\n                  color=\"red.700\"\r\n                  borderLeft=\"4px solid red.400\"\r\n                  px={3}\r\n                  py={1}\r\n                  borderRadius=\"md\"\r\n                  fontSize=\"sm\"\r\n                  fontWeight=\"bold\"\r\n                  boxShadow=\"sm\"\r\n                >\r\n                  Clash\r\n                </Box>\r\n              </Flex>\r\n            )}\r\n          </ModalBody>\r\n          <ModalFooter>\r\n            <HStack spacing={3}>\r\n              <Tag\r\n                size=\"md\"\r\n                colorScheme={totalCourses >= MAX_COURSES ? \"orange\" : \"purple\"}\r\n                variant=\"subtle\"\r\n              >\r\n                <TagLeftIcon as={Calendar} />\r\n                <TagLabel fontWeight=\"bold\">\r\n                  {totalCourses}/{MAX_COURSES} Courses\r\n                </TagLabel>\r\n              </Tag>\r\n              <Tag\r\n                size=\"md\"\r\n                colorScheme={\r\n                  totalCredits < MIN_CREDITS\r\n                    ? \"red\"\r\n                    : totalCredits >= creditLimit\r\n                      ? \"orange\"\r\n                      : \"blue\"\r\n                }\r\n                variant=\"subtle\"\r\n              >\r\n                <TagLeftIcon boxSize={3} as={Book} />\r\n                <TagLabel fontWeight=\"bold\">\r\n                  {totalCredits}/{creditLimit} Credits\r\n                  {totalCredits < 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Urban Research Lab

The Urban Research Lab (URL) at IIIT-Delhi was established in 2020, during a time when the pandemic brought the complexities of urban life more visible than ever. What started as an initiative by faculty and students has grown into a collaborative space for critically exploring and reimagining the urban questions through research, dialogue, and interdisciplinary engagement.

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Code Editor : TimetableClashChecker-gskbNvYE.js.map

Urban Research Lab