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

generator client {
  provider = "prisma-client"
  output   = "../src/generated/prisma"
}

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

model Project {
  id          String   @id @default(uuid()) @db.Uuid
  name        String
  description String   @default("")
  color       String   @default("#3b82f6")
  sortOrder   Int      @default(0) @map("sort_order")
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")
  tasks       Task[]

  @@index([sortOrder])
}

model Task {
  id                String            @id @default(uuid()) @db.Uuid
  title             String
  description       String            @default("")
  completed         Boolean           @default(false)
  priority          Priority          @default(medium)
  dueDate           DateTime?         @map("due_date")
  status            Status            @default(todo)
  parentTaskId      String?           @map("parent_task_id") @db.Uuid
  recurrenceRule    Recurrence        @default(none) @map("recurrence_rule")
  recurrenceInterval Int              @default(1) @map("recurrence_interval")
  nextOccurrence    DateTime?         @map("next_occurrence")
  sortOrder         Int               @default(0) @map("sort_order")
  createdAt         DateTime          @default(now()) @map("created_at")
  updatedAt         DateTime          @updatedAt @map("updated_at")

  parentTask   Task?                  @relation("TaskChildren", fields: [parentTaskId], references: [id], onDelete: Cascade)
  children     Task[]                 @relation("TaskChildren")
  project      Project?               @relation(fields: [projectId], references: [id], onDelete: Cascade)
  projectId    String?                @map("project_id") @db.Uuid
  reminders    TaskReminder[]         @relation("TaskReminders")

  @@index([projectId])
  @@index([parentTaskId])
  @@index([completed])
  @@index([status])
  @@index([dueDate])
  @@index([recurrenceRule])
}

enum Priority {
  low
  medium
  high
  urgent
}

enum Status {
  todo
  in_progress
  done
}

enum Recurrence {
  none
  daily
  weekly
  biweekly
  monthly
  yearly
}

model TaskReminder {
  id        String   @id @default(uuid()) @db.Uuid
  taskId    String   @map("task_id") @db.Uuid
  reminder  DateTime @map("reminder")
  sent      Boolean  @default(false) @map("sent")
  createdAt DateTime @default(now()) @map("created_at")

  task Task @relation("TaskReminders", fields: [taskId], references: [id], onDelete: Cascade)

  @@index([taskId])
  @@index([sent])
}

model Reminder {
  id          String   @id @default(uuid()) @db.Uuid
  message     String
  dueDate     DateTime @map("due_date")
  sent        Boolean  @default(false) @map("sent")
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  @@index([dueDate])
  @@index([sent])
}