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

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

model User {
  id        String   @id @db.VarChar(255)
  username  String   @db.VarChar(255)
  email     String   @db.VarChar(255)
  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  clients       Client[]
  projects      Project[]
  timeEntries   TimeEntry[]
  ongoingTimer  OngoingTimer?
  clientTargets ClientTarget[]

  @@map("users")
}

model Client {
  id          String   @id @default(uuid())
  name        String   @db.VarChar(255)
  description String?  @db.Text
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  userId   String @map("user_id") @db.VarChar(255)
  user     User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  projects Project[]
  clientTargets ClientTarget[]

  @@index([userId])
  @@map("clients")
}

model Project {
  id          String  @id @default(uuid())
  name        String  @db.VarChar(255)
  description String? @db.Text
  color       String? @db.VarChar(7) // Hex color code
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  userId   String @map("user_id") @db.VarChar(255)
  user     User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  clientId String @map("client_id")
  client   Client @relation(fields: [clientId], references: [id], onDelete: Cascade)

  timeEntries  TimeEntry[]
  ongoingTimers OngoingTimer[]

  @@index([userId])
  @@index([clientId])
  @@map("projects")
}

model TimeEntry {
  id          String   @id @default(uuid())
  startTime   DateTime @map("start_time") @db.Timestamptz()
  endTime     DateTime @map("end_time") @db.Timestamptz()
  description String?  @db.Text
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  userId    String @map("user_id") @db.VarChar(255)
  user      User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  projectId String @map("project_id")
  project   Project @relation(fields: [projectId], references: [id], onDelete: Cascade)

  @@index([userId])
  @@index([userId, startTime])
  @@index([projectId])
  @@map("time_entries")
}

model OngoingTimer {
  id        String   @id @default(uuid())
  startTime DateTime @map("start_time") @db.Timestamptz()
  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  userId    String  @map("user_id") @db.VarChar(255) @unique
  user      User    @relation(fields: [userId], references: [id], onDelete: Cascade)
  projectId String? @map("project_id")
  project   Project? @relation(fields: [projectId], references: [id], onDelete: SetNull)

  @@index([userId])
  @@map("ongoing_timers")
}

model ClientTarget {
  id           String   @id @default(uuid())
  weeklyHours  Float    @map("weekly_hours")
  startDate    DateTime @map("start_date") @db.Date // Always a Monday
  createdAt    DateTime @default(now()) @map("created_at")
  updatedAt    DateTime @updatedAt @map("updated_at")

  userId   String @map("user_id") @db.VarChar(255)
  user     User   @relation(fields: [userId], references: [id], onDelete: Cascade)
  clientId String @map("client_id")
  client   Client @relation(fields: [clientId], references: [id], onDelete: Cascade)

  corrections BalanceCorrection[]

  @@unique([userId, clientId])
  @@index([userId])
  @@index([clientId])
  @@map("client_targets")
}

model BalanceCorrection {
  id          String   @id @default(uuid())
  date        DateTime @map("date") @db.Date
  hours       Float
  description String?  @db.VarChar(255)
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  clientTargetId String       @map("client_target_id")
  clientTarget   ClientTarget @relation(fields: [clientTargetId], references: [id], onDelete: Cascade)

  @@index([clientTargetId])
  @@map("balance_corrections")
}