// This is your Prisma schema file,
// learn more about it in the docs: https://pris.ly/d/prisma-schema

generator client {
  provider = "prisma-client-js"
}

datasource db {
  provider = "mysql"
  url      = env("DATABASE_URL")
}

// Model untuk User (Admin, Guru, Siswa)
model User {
  id            String    @id @default(cuid())
  email         String    @unique
  name          String
  password      String
  role          Role      @default(STUDENT)
  profileImage  String?
  isActive      Boolean   @default(true)
  createdAt     DateTime  @default(now())
  updatedAt     DateTime  @updatedAt

  // Relations
  student       Student?
  teacher       Teacher?
  classEnrollments ClassStudent[]
  attendances   Attendance[]
  grades        Grade[]

  @@map("users")
}

enum Role {
  ADMIN
  TEACHER
  STUDENT
  PARENT
}

enum Gender {
  MALE
  FEMALE
  OTHER
}

// Model untuk Siswa
model Student {
  id              String   @id @default(cuid())
  userId          String   @unique
  studentNumber   String   @unique
  dateOfBirth     DateTime
  gender          Gender   @default(OTHER)
  address         String
  phone           String?
  parentName      String
  parentPhone     String
  emergencyContact String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  // Relations
  user            User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  classEnrollments ClassStudent[]
  attendances     Attendance[]
  grades          Grade[]

  @@map("students")
}

// Model untuk Guru
model Teacher {
  id              String   @id @default(cuid())
  userId          String   @unique
  teacherNumber   String   @unique
  specialization  String
  qualification   String
  experience      Int      // dalam tahun
  phone           String?
  address         String?
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  // Relations
  user            User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  subjects        Subject[]
  classes         Class[]
  attendances     Attendance[]
  grades          Grade[]

  @@map("teachers")
}

// Model untuk Mata Pelajaran
model Subject {
  id          String   @id @default(cuid())
  name        String
  code        String   @unique
  description String?
  credits     Int      @default(1)
  isActive    Boolean  @default(true)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relations
  teacherId   String
  teacher     Teacher  @relation(fields: [teacherId], references: [id])
  classes     Class[]
  grades      Grade[]

  @@map("subjects")
}

// Model untuk Kelas
model Class {
  id          String   @id @default(cuid())
  name        String   // e.g., "X-IPA-1", "XI-IPS-2"
  grade       String   // e.g., "X", "XI", "XII"
  section     String   // e.g., "IPA", "IPS"
  maxStudents Int      @default(30)
  room        String?
  isActive    Boolean  @default(true)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relations
  teacherId   String   // Wali kelas
  teacher     Teacher  @relation(fields: [teacherId], references: [id])
  subjectId   String
  subject     Subject  @relation(fields: [subjectId], references: [id])
  students    ClassStudent[]
  attendances Attendance[]
  grades      Grade[]

  @@map("classes")
}

// Model untuk hubungan Siswa dan Kelas (Many-to-Many)
model ClassStudent {
  id        String   @id @default(cuid())
  studentId String
  classId   String
  userId    String
  enrolledAt DateTime @default(now())
  isActive  Boolean  @default(true)

  // Relations
  student   Student  @relation(fields: [studentId], references: [id], onDelete: Cascade)
  class     Class    @relation(fields: [classId], references: [id], onDelete: Cascade)
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([studentId, classId])
  @@map("class_students")
}

// Model untuk Absensi
model Attendance {
  id        String         @id @default(cuid())
  date      DateTime
  status    AttendanceStatus
  notes     String?
  createdAt DateTime       @default(now())
  updatedAt DateTime       @updatedAt

  // Relations
  studentId String
  student   Student        @relation(fields: [studentId], references: [id], onDelete: Cascade)
  teacherId String
  teacher   Teacher        @relation(fields: [teacherId], references: [id])
  classId   String
  class     Class          @relation(fields: [classId], references: [id])
  userId    String
  user      User           @relation(fields: [userId], references: [id])

  @@unique([studentId, classId, date])
  @@map("attendances")
}

enum AttendanceStatus {
  PRESENT
  ABSENT
  LATE
  EXCUSED
}

// Model untuk Nilai
model Grade {
  id          String     @id @default(cuid())
  type        GradeType
  score       Float
  maxScore    Float      @default(100)
  description String?
  date        DateTime
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt

  // Relations
  studentId   String
  student     Student    @relation(fields: [studentId], references: [id], onDelete: Cascade)
  teacherId   String
  teacher     Teacher    @relation(fields: [teacherId], references: [id])
  subjectId   String
  subject     Subject    @relation(fields: [subjectId], references: [id])
  classId     String
  class       Class      @relation(fields: [classId], references: [id])
  userId      String
  user        User       @relation(fields: [userId], references: [id])

  @@map("grades")
}

enum GradeType {
  QUIZ
  ASSIGNMENT
  MIDTERM
  FINAL
  PROJECT
}

// Model untuk Tahun Akademik
model AcademicYear {
  id        String   @id @default(cuid())
  name      String   @unique // e.g., "2024/2025"
  startDate DateTime
  endDate   DateTime
  isActive  Boolean  @default(false)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@map("academic_years")
}