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

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

model User {
  id                String    @id @default(cuid())
  email             String    @unique
  passwordHash      String?   // Optional for SSO users
  name              String?
  image             String?
  emailVerified     DateTime?
  verifiedAt        DateTime? 
  emailVerificationToken String?
  emailVerificationExpires DateTime?
  passwordResetToken String?
  passwordResetExpires DateTime?
  createdAt         DateTime  @default(now())
  updatedAt         DateTime  @updatedAt
  timezone          String    @default("UTC")
  autoRolling       Boolean   @default(false)
  protectEventTimes Boolean   @default(false)
  language          String    @default("de")
  dateFormat        String    @default("yyyy-MM-dd")
  timeFormat        String    @default("24h")
  startHour         Int       @default(8)
  endHour           Int       @default(18)
  showNextTask      Boolean   @default(false)
  calendarEditMode  Boolean   @default(false)
  focusTimerDuration Int      @default(25)
  focusBreakDuration Int      @default(5)
  showTimeGrid      Boolean   @default(true)
  showSomeday       Boolean   @default(true)
  showAllDayEvents  Boolean   @default(true)
  showSchedule      Boolean   @default(true)
  cellDuration      Int       @default(30)
  viewStyle         String    @default("grid")
  viewDays          Int       @default(7)
  fontSize          String    @default("M") // "S", "M", "L"
  headlineFont      String    @default("Inter")
  headlineFontSize  String?   @default("1.25rem")
  headlineFontWeight String?  @default("900")
  dateFontFamily    String?   @default("Inter")
  dateFontSize      String?   @default("0.65rem")
  dateFontWeight    String?   @default("400")
  timeTaskFontFamily String?  @default("Inter")
  timeTaskFontSize  String?   @default("0.75rem")
  timeTaskFontWeight String?  @default("500")
  bodyFont          String    @default("Inter")
  taskFontFamily    String?   @default("Inter")
  taskFontSize      String?   @default("0.9rem")
  taskFontWeight    String?   @default("400")
  eventFontFamily   String?   @default("Inter")
  eventFontSize     String?   @default("0.85rem")
  eventFontWeight   String?   @default("400")
  fontWeight        String    @default("400") // Legacy/Generic
  
  // Color Settings
  weekdayColor      String?   @default("#888888")
  dateColor         String?   @default("#888888")
  taskColor         String?   @default("#333333")
  todayHighlightColor String? @default("#f0fafa")
  
  weekendColorSat   String?   @default("#666666")
  weekendColorSun   String?   @default("#dc2626")
  pastDayColor      String?   @default("#a6a6a7")
  
  accounts          Account[]
  sessions          Session[]
  tasks             Task[]
  somedayLists      SomedayList[]
  calendarConnections CalendarConnection[]
}

model Account {
  id                String  @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String? @db.Text
  access_token      String? @db.Text
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String? @db.Text
  session_state     String?

  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([provider, providerAccountId])
}

model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}

model VerificationToken {
  identifier String
  token      String   @unique
  expires    DateTime

  @@unique([identifier, token])
}

model Task {
  id          String    @id @default(cuid())
  userId      String
  title       String
  description String?
  markdownContent String? @db.Text
  completed   Boolean   @default(false)
  isRolling   Boolean   @default(false)
  order       Int       @default(0)
  dayOfWeek   Int?      // 0-6 for Sunday-Saturday (legacy/someday lists)
  scheduledDate DateTime? // Actual date for the task
  somedayListId String?
  originalDate DateTime?
  startTime   String?
  endTime     String?
  isRecurring       Boolean   @default(false)
  recurrenceInterval Int?     // Number of units between occurrences
  recurrenceUnit    String?   // "days" or "weeks"
  recurrenceTime    String?   // e.g. "09:00" - time for the recurring task
  recurrenceEndDate DateTime? // Optional end date for recurrence
  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt
  
  user        User      @relation(fields: [userId], references: [id], onDelete: Cascade)
  
  somedayList   SomedayList? @relation(fields: [somedayListId], references: [id])
  
  @@index([userId, dayOfWeek])
  @@index([userId, scheduledDate])
  @@index([userId, somedayListId])
}

model SomedayList {
  id        String   @id @default(cuid())
  userId    String
  title     String
  order     Int      @default(0)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
  
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  tasks     Task[]

  @@index([userId])
}

model CalendarConnection {
  id         String    @id @default(cuid())
  userId     String
  provider   String
  accessToken String
  refreshToken String?
  expiresAt  DateTime?
  calendars  Json?     // Stores array of { id, title, isPrimary, selected }
  createdAt  DateTime  @default(now())
  updatedAt  DateTime  @updatedAt
  user       User      @relation(fields: [userId], references: [id], onDelete: Cascade)
}