// Podcast Distribution AI data model.
// Better Auth owns the auth/org/subscription tables (field names follow its conventions);
// we augment User/Session/Subscription and add the podcast + admin domain.
// pg-boss manages its own `pgboss.*` schema separately — not modeled here.

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

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

// ─────────────────────────── Better Auth: core ───────────────────────────

model User {
  id            String  @id @default(cuid())
  name          String
  email         String  @unique
  emailVerified Boolean @default(false)
  image         String?

  // admin plugin
  role       String?   @default("user") // "user" | "admin"
  banned     Boolean?  @default(false)
  banReason  String?
  banExpires DateTime?

  // app fields
  stripeCustomerId String?
  paypalPayerId    String?
  onboardedAt      DateTime?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  sessions        Session[]
  accounts        Account[]
  memberships     Member[]
  sentInvitations Invitation[]     @relation("SentInvitations")
  episodes        Episode[]
  series          Series[]
  apiKeys         ApiKey[]
  usageRecords    UsageRecord[]
  auditLogs       AuditLog[]       @relation("ActorLogs")
  preferences     UserPreferences?

  @@index([createdAt])
  @@map("user")
}

model Session {
  id        String   @id @default(cuid())
  expiresAt DateTime
  token     String   @unique
  ipAddress String?
  userAgent String?

  // organization plugin
  activeOrganizationId String?
  // admin plugin (impersonation)
  impersonatedBy String?

  userId    String
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

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

model Account {
  id                    String    @id @default(cuid())
  accountId             String
  providerId            String
  userId                String
  user                  User      @relation(fields: [userId], references: [id], onDelete: Cascade)
  accessToken           String?
  refreshToken          String?
  idToken               String?
  accessTokenExpiresAt  DateTime?
  refreshTokenExpiresAt DateTime?
  scope                 String?
  password              String?
  createdAt             DateTime  @default(now())
  updatedAt             DateTime  @updatedAt

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

model Verification {
  id         String   @id @default(cuid())
  identifier String
  value      String
  expiresAt  DateTime
  createdAt  DateTime @default(now())
  updatedAt  DateTime @updatedAt

  @@index([identifier])
  @@map("verification")
}

// ─────────────────────── Better Auth: organization / team ───────────────────────

model Organization {
  id        String   @id @default(cuid())
  name      String
  slug      String?  @unique
  logo      String?
  metadata  String? // JSON blob (Better Auth stores as string)
  createdAt DateTime @default(now())

  members     Member[]
  invitations Invitation[]
  teams       Team[]
  episodes    Episode[]
  series      Series[]
  branding    OrgBranding?

  @@map("organization")
}

model Member {
  id             String       @id @default(cuid())
  organizationId String
  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
  userId         String
  user           User         @relation(fields: [userId], references: [id], onDelete: Cascade)
  teamId         String?
  role           String       @default("member") // "owner" | "admin" | "member"
  createdAt      DateTime     @default(now())

  @@unique([organizationId, userId])
  @@index([userId])
  @@map("member")
}

model Invitation {
  id             String       @id @default(cuid())
  organizationId String
  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
  email          String
  role           String?
  teamId         String?
  status         String       @default("pending")
  expiresAt      DateTime
  inviterId      String
  inviter        User         @relation("SentInvitations", fields: [inviterId], references: [id], onDelete: Cascade)

  @@index([organizationId])
  @@map("invitation")
}

model Team {
  id             String       @id @default(cuid())
  name           String
  organizationId String
  organization   Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
  createdAt      DateTime     @default(now())
  updatedAt      DateTime?    @updatedAt

  @@index([organizationId])
  @@map("team")
}

/// Agency white-label branding, one-to-one with an organization.
model OrgBranding {
  organizationId  String       @id
  organization    Organization @relation(fields: [organizationId], references: [id], onDelete: Cascade)
  brandName       String?
  primaryColor    String? // hex
  logoUrl         String?
  customDomain    String?      @unique
  removePoweredBy Boolean      @default(false)
  updatedAt       DateTime     @updatedAt

  @@map("org_branding")
}

// ─────────────────────────── Billing ───────────────────────────

/// One internal subscription model. Better Auth's Stripe plugin populates the Stripe fields;
/// the custom PayPal webhook handler populates the PayPal fields. `provider` discriminates.
model Subscription {
  id          String @id @default(cuid())
  plan        String // "free" | "creator" | "pro" | "agency"
  referenceId String // user.id (individual) OR organization.id (Agency)
  status      String @default("active") // active | trialing | past_due | canceled | paused

  provider        String  @default("stripe") // "stripe" | "paypal"
  billingInterval String? // "month" | "year"
  seats           Int?

  // Stripe
  stripeCustomerId     String?
  stripeSubscriptionId String?
  // PayPal
  paypalSubscriptionId String?
  paypalPlanId         String?

  periodStart       DateTime?
  periodEnd         DateTime?
  cancelAtPeriodEnd Boolean?  @default(false)
  trialStart        DateTime?
  trialEnd          DateTime?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@index([referenceId])
  @@index([stripeSubscriptionId])
  @@index([paypalSubscriptionId])
  @@index([status])
  @@index([createdAt])
  @@map("subscription")
}

/// Optional DB mirror of the code-defined plan catalog (lib/billing/plans.ts) so admins can
/// tune prices/limits without a deploy. `limits` is the PlanLimits JSON.
model Plan {
  id                   String   @id @default(cuid())
  key                  String   @unique // "free" | "creator" | "pro" | "agency"
  name                 String
  priceMonthly         Int      @default(0) // cents
  priceYearly          Int      @default(0)
  stripePriceIdMonthly String?
  stripePriceIdYearly  String?
  paypalPlanIdMonthly  String?
  paypalPlanIdYearly   String?
  limits               Json
  features             Json
  isPublic             Boolean  @default(true)
  updatedAt            DateTime @updatedAt

  @@map("plan")
}

/// Monthly usage counters, one row per (subject, period, metric).
model UsageRecord {
  id        String   @id @default(cuid())
  ownerId   String // user.id or organization.id (the billing subject)
  ownerType String // "user" | "organization"
  periodKey String // "2026-06"
  metric    String // "script" | "audio" | "art" | "repurpose"
  count     Int      @default(0)
  user      User?    @relation(fields: [ownerId], references: [id], onDelete: Cascade, map: "usage_owner_user_fk")
  updatedAt DateTime @updatedAt

  @@unique([ownerId, periodKey, metric])
  @@index([ownerId, periodKey])
  @@map("usage_record")
}

// ─────────────────────────── Podcast domain ───────────────────────────

enum EpisodeStatus {
  DRAFT
  QUEUED
  SCRIPTING
  SYNTHESIZING
  STITCHING
  ART
  SAVING
  READY
  FAILED
}

enum EpisodeFormat {
  SOLO
  INTERVIEW
  MULTI_HOST
}

model Episode {
  id             String        @id @default(cuid())
  userId         String
  user           User          @relation(fields: [userId], references: [id], onDelete: Cascade)
  organizationId String?
  organization   Organization? @relation(fields: [organizationId], references: [id], onDelete: SetNull)
  seriesId       String?
  series         Series?       @relation(fields: [seriesId], references: [id], onDelete: SetNull)

  title           String
  topic           String        @db.Text
  tone            String
  format          EpisodeFormat @default(SOLO)
  language        String        @default("en") // ISO code
  targetLengthMin Int           @default(5)
  audience        String?

  status       EpisodeStatus @default(DRAFT)
  stage        String? // human-readable current step
  errorMessage String?

  // Public share: when shareId is set, the episode is reachable at /p/<shareId>
  // without auth. Clearing shareId disables the public page.
  shareId  String?   @unique
  sharedAt DateTime?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  script     Script?
  speakers   SpeakerConfig[]
  audioAsset AudioAsset?
  coverArt   CoverArt?
  repurposed RepurposedContent[]
  jobs       GenerationJob[]
  flags      ContentFlag[]

  @@index([userId])
  @@index([organizationId])
  @@index([seriesId])
  @@index([status])
  @@index([createdAt])
  @@map("episode")
}

model Script {
  id        String  @id @default(cuid())
  episodeId String  @unique
  episode   Episode @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  /// Structured: [{ speakerKey, text, sectionId, title }]
  content   Json
  model     String  @default("gpt-4o")
  version   Int     @default(1)
  updatedAt DateTime @updatedAt

  @@map("script")
}

/// Maps a script speaker ("host", "guest", "cohost") to an ElevenLabs voice.
model SpeakerConfig {
  id            String  @id @default(cuid())
  episodeId     String
  episode       Episode @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  speakerKey    String
  displayName   String
  elevenVoiceId String

  @@unique([episodeId, speakerKey])
  @@map("speaker_config")
}

model AudioAsset {
  id          String  @id @default(cuid())
  episodeId   String  @unique
  episode     Episode @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  storageKey  String // relative key, e.g. "mp3/<episodeId>.mp3"
  durationSec Int?
  sizeBytes   Int?
  format      String  @default("mp3")
  /// Segment manifest for partial regeneration.
  segments    Json?
  createdAt   DateTime @default(now())

  @@map("audio_asset")
}

model CoverArt {
  id         String  @id @default(cuid())
  episodeId  String  @unique
  episode    Episode @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  storageKey String // relative key, e.g. "art/<episodeId>.png"
  prompt     String  @db.Text
  model      String  @default("dall-e-3")
  createdAt  DateTime @default(now())

  @@map("cover_art")
}

model RepurposedContent {
  id        String   @id @default(cuid())
  episodeId String
  episode   Episode  @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  type      String // "blog" | "social_thread" | "newsletter"
  content   Json
  createdAt DateTime @default(now())

  @@index([episodeId])
  @@map("repurposed_content")
}

/// Series / season planner (Pro+).
model Series {
  id             String        @id @default(cuid())
  userId         String
  user           User          @relation(fields: [userId], references: [id], onDelete: Cascade)
  organizationId String?
  organization   Organization? @relation(fields: [organizationId], references: [id], onDelete: SetNull)
  title          String
  description    String?       @db.Text
  plannedCount   Int           @default(0)
  /// Season plan: [{ title, topic, summary }]
  plan           Json?
  episodes       Episode[]
  createdAt      DateTime      @default(now())

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

// ─────────────────────────── Jobs / async ───────────────────────────

model GenerationJob {
  id           String    @id @default(cuid())
  episodeId    String
  episode      Episode   @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  pgBossJobId  String?
  type         String    @default("full") // full | script | audio | art | section | repurpose
  status       String    @default("queued") // queued | running | completed | failed
  stage        String?
  attempts     Int       @default(0)
  /// { openaiTokens, elevenChars, dalleImages, costUsd }
  costEstimate Json?
  error        String?
  startedAt    DateTime?
  finishedAt   DateTime?
  createdAt    DateTime  @default(now())

  @@index([episodeId])
  @@index([status])
  @@map("generation_job")
}

// ─────────────────────────── Pro API access ───────────────────────────

/// Custom API keys (we hash + verify ourselves; not the Better Auth apiKey plugin).
model ApiKey {
  id         String    @id @default(cuid())
  userId     String
  user       User      @relation(fields: [userId], references: [id], onDelete: Cascade)
  name       String
  hashedKey  String    @unique
  prefix     String // display only, e.g. "pky_live_abcd…"
  lastUsedAt DateTime?
  revokedAt  DateTime?
  createdAt  DateTime  @default(now())

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

// ─────────────────────────── Admin / ops ───────────────────────────

model AuditLog {
  id        String   @id @default(cuid())
  actorId   String?
  actor     User?    @relation("ActorLogs", fields: [actorId], references: [id], onDelete: SetNull)
  actorType String   @default("user") // "user" | "admin" | "system"
  action    String // "user.ban", "subscription.refund", "flag.toggle", …
  target    String?
  metadata  Json?
  ip        String?
  createdAt DateTime @default(now())

  @@index([action])
  @@index([createdAt])
  @@map("audit_log")
}

model FeatureFlag {
  key        String   @id
  enabled    Boolean  @default(false)
  rolloutPct Int      @default(0)
  metadata   Json?
  updatedAt  DateTime @updatedAt

  @@map("feature_flag")
}

/// AI usage + cost monitoring.
model AiCostLog {
  id        String   @id @default(cuid())
  provider  String // "openai" | "elevenlabs"
  operation String // "script" | "audio" | "art" | "repurpose"
  episodeId String?
  userId    String?
  units     Int      @default(0) // tokens | chars | images
  costUsd   Decimal  @default(0) @db.Decimal(10, 4)
  createdAt DateTime @default(now())

  @@index([provider, createdAt])
  @@index([userId])
  @@map("ai_cost_log")
}

/// Content moderation queue.
model ContentFlag {
  id         String   @id @default(cuid())
  episodeId  String
  episode    Episode  @relation(fields: [episodeId], references: [id], onDelete: Cascade)
  reason     String
  source     String   @default("system") // "moderation" | "report" | "system"
  severity   String   @default("medium") // "low" | "medium" | "high"
  status     String   @default("open") // open | reviewed | removed
  reviewedBy String?
  createdAt  DateTime @default(now())

  @@index([status])
  @@map("content_flag")
}

/// Liveness of a long-running worker process (heartbeat). One row per worker name.
model WorkerHeartbeat {
  name       String   @id
  lastBeatAt DateTime
  queued     Int?
  running    Int?
  meta       Json?

  @@map("worker_heartbeat")
}

/// Per-user editor defaults and notification preferences (settings page).
model UserPreferences {
  userId              String   @id
  user                User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  defaultVoiceId      String?
  defaultLanguage     String   @default("en")
  emailOnEpisodeReady Boolean  @default(true)
  productEmails       Boolean  @default(true)
  updatedAt           DateTime @updatedAt

  @@map("user_preferences")
}

/// Billing webhook delivery log — also dedups replayed events on `eventId`.
model WebhookEvent {
  id        String   @id @default(cuid())
  provider  String // "stripe" | "paypal"
  eventId   String   @unique
  type      String
  status    String   @default("processed") // processed | failed | skipped
  error     String?
  createdAt DateTime @default(now())

  @@index([provider, createdAt])
  @@map("webhook_event")
}