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

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

model User {
  id              String    @id @default(uuid())
  email           String    @unique
  passwordHash    String
  name            String?
  theme           String    @default("light")
  fontSize        String    @default("medium")
  createdAt       DateTime  @default(now())
  updatedAt       DateTime  @updatedAt
  lastLoginAt     DateTime?

  sessions        Session[]
  bookmarks       Bookmark[]
  notes           Note[]
  chatMessages    ChatMessage[]
  prayerRequests  PrayerRequest[]
  readingHistory  ReadingHistory[]
  preferences     UserPreference[]
}

model Session {
  id          String   @id @default(uuid())
  userId      String
  token       String   @unique
  expiresAt   DateTime
  createdAt   DateTime @default(now())

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

  @@index([userId])
  @@index([token])
}

model BibleBook {
  id          Int      @id
  name        String
  testament   String
  orderNum    Int
  chapters    BibleChapter[]

  @@index([testament])
}

model BibleChapter {
  id          String   @id @default(uuid())
  bookId      Int
  chapterNum  Int
  verses      BibleVerse[]

  book        BibleBook @relation(fields: [bookId], references: [id])

  @@unique([bookId, chapterNum])
  @@index([bookId])
}

model BibleVerse {
  id          String   @id @default(uuid())
  chapterId   String
  verseNum    Int
  text        String   @db.Text
  version     String   @default("KJV")

  chapter     BibleChapter @relation(fields: [chapterId], references: [id])
  bookmarks   Bookmark[]
  notes       Note[]

  @@unique([chapterId, verseNum, version])
  @@index([chapterId])
  @@index([version])
}

model ChatMessage {
  id          String   @id @default(uuid())
  userId      String
  role        String   // 'user' or 'assistant'
  content     String   @db.Text
  metadata    Json?    // Store verse references, etc.
  createdAt   DateTime @default(now())

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

  @@index([userId, createdAt])
}

model Bookmark {
  id          String   @id @default(uuid())
  userId      String
  verseId     String
  note        String?
  color       String   @default("#FFD700")
  createdAt   DateTime @default(now())

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

  @@unique([userId, verseId])
  @@index([userId])
}

model Note {
  id          String   @id @default(uuid())
  userId      String
  verseId     String
  content     String   @db.Text
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

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

  @@index([userId])
  @@index([verseId])
}

model PrayerRequest {
  id          String   @id @default(uuid())
  userId      String?
  content     String   @db.Text
  isAnonymous Boolean  @default(true)
  prayerCount Int      @default(0)
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

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

  @@index([createdAt])
}

model Prayer {
  id            String   @id @default(uuid())
  requestId     String
  ipAddress     String   // For anonymous prayer counting
  createdAt     DateTime @default(now())

  request       PrayerRequest @relation(fields: [requestId], references: [id], onDelete: Cascade)

  @@unique([requestId, ipAddress])
}

model ReadingHistory {
  id          String   @id @default(uuid())
  userId      String
  bookId      Int
  chapterNum  Int
  verseNum    Int?
  viewedAt    DateTime @default(now())

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

  @@index([userId, viewedAt])
}

model UserPreference {
  id          String   @id @default(uuid())
  userId      String
  key         String
  value       String

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

  @@unique([userId, key])
}