// 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          = "postgresql"
  url               = env("DIRECT_URL") // Pooled connection for queries
  directUrl         = env("DATABASE_URL") // Direct connection for migrations
  shadowDatabaseUrl = env("SHADOW_DATABASE_URL") // For migration preview
}

// User profile - links to Supabase auth.users
model Profile {
  id        String   @id @default(uuid()) @db.Uuid
  email     String   @unique
  name      String?
  avatarUrl String?  @map("avatar_url")
  bio       String?  @db.Text
  role      UserRole @default(USER)

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relations
  posts    Post[]
  comments Comment[]

  @@index([email])
  @@map("profiles")
}

// User roles enum
enum UserRole {
  USER
  MODERATOR
  ADMIN
}

// Blog post example
model Post {
  id          String   @id @default(uuid()) @db.Uuid
  title       String
  slug        String   @unique
  content     String   @db.Text
  excerpt     String?  @db.Text
  published   Boolean  @default(false)
  publishedAt DateTime? @map("published_at")

  authorId String  @map("author_id") @db.Uuid
  author   Profile @relation(fields: [authorId], references: [id], onDelete: Cascade)

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  // Relations
  comments Comment[]
  tags     PostTag[]

  @@index([authorId])
  @@index([slug])
  @@index([published, publishedAt])
  @@map("posts")
}

// Comment model
model Comment {
  id      String @id @default(uuid()) @db.Uuid
  content String @db.Text

  postId String @map("post_id") @db.Uuid
  post   Post   @relation(fields: [postId], references: [id], onDelete: Cascade)

  authorId String  @map("author_id") @db.Uuid
  author   Profile @relation(fields: [authorId], references: [id], onDelete: Cascade)

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  @@index([postId])
  @@index([authorId])
  @@map("comments")
}

// Tag model
model Tag {
  id   String @id @default(uuid()) @db.Uuid
  name String @unique
  slug String @unique

  posts PostTag[]

  @@index([slug])
  @@map("tags")
}

// Many-to-many relation between posts and tags
model PostTag {
  postId String @map("post_id") @db.Uuid
  post   Post   @relation(fields: [postId], references: [id], onDelete: Cascade)

  tagId String @map("tag_id") @db.Uuid
  tag   Tag    @relation(fields: [tagId], references: [id], onDelete: Cascade)

  assignedAt DateTime @default(now()) @map("assigned_at")

  @@id([postId, tagId])
  @@map("post_tags")
}

// Settings model (singleton pattern)
model Settings {
  id          String  @id @default(uuid()) @db.Uuid
  siteName    String  @map("site_name")
  siteUrl     String  @map("site_url")
  description String? @db.Text

  // SEO
  metaTitle       String? @map("meta_title")
  metaDescription String? @map("meta_description")

  // Features
  enableComments      Boolean @default(true) @map("enable_comments")
  enableRegistration  Boolean @default(true) @map("enable_registration")
  maintenanceMode     Boolean @default(false) @map("maintenance_mode")

  updatedAt DateTime @updatedAt @map("updated_at")

  @@map("settings")
}