schema.prisma

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

datasource db {
  provider = "postgresql"
}

// ==========================================
// 1. Auth.js (NextAuth) 鏍囧噯璐︽埛浣撶郴涓庢墿锟?
// ==========================================

model User {
  id            String    @id @default(cuid())
  name          String?
  email         String?   @unique
  emailVerified DateTime?
  image         String?
  role          String    @default("USER")
  githubPat     String?
  githubLogin   String?


  accounts      Account[]
  sessions      Session[]


  revisions          Revision[]          @relation("RevisionAuthor")
  reviews            Revision[]          @relation("RevisionReviewer")
  glossaryRevisions  GlossaryRevision[]  @relation("GlossaryRevisionAuthor")

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

model Account {
  id                String  @id @default(cuid())
  userId            String
  type              String
  provider          String
  providerAccountId String
  refresh_token     String?
  access_token      String?
  expires_at        Int?
  token_type        String?
  scope             String?
  id_token          String?
  session_state     String?

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

  @@unique([provider, providerAccountId])
}

model Session {
  id           String   @id @default(cuid())
  sessionToken String   @unique
  userId       String
  expires      DateTime
  user         User     @relation(fields: [userId], references: [id], onDelete: Cascade)
}



model Revision {
   id          String         @id @default(cuid())
   title       String
   content     String
   coverImage  String?
   
    status      String         @default("DRAFT") // DRAFT, SYNC_CONFLICT, IN_REVIEW
   githubPrUrl String?
   githubPrNum Int?
    prBranchName String?
   filePath    String?
    baseMainSha String?
   syncedMainSha String?
   conflictContent String?
   submittedAt DateTime?

   authorId    String
   author      User           @relation("RevisionAuthor", fields: [authorId], references: [id])

    reviewerId  String?
    reviewer    User?          @relation("RevisionReviewer", fields: [reviewerId], references: [id], onDelete: SetNull)

    rebaseState Json?
    conflictMode String?
     
     // Draft asset lifecycle relation
     draftAssets DraftAsset[]

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

// ==========================================
// 4. Glossary Revision (beta)
// ==========================================

model GlossaryRevision {
  id              String     @id @default(cuid())
  authorId        String
  author          User       @relation("GlossaryRevisionAuthor", fields: [authorId], references: [id], onDelete: Cascade)
  title           String?
  status          String     @default("DRAFT")   // DRAFT | PENDING | SUBMITTED
  operations      Json                             // array of { kind, slug, before?, after? }
  baseSubmoduleSha String?
  branchName      String?
  githubPrUrl     String?
  githubPrNum     Int?
  submittedAt     DateTime?
  createdAt       DateTime   @default(now())
  updatedAt       DateTime   @updatedAt

  @@index([authorId, status])
  @@index([updatedAt])
}

// ==========================================
// 5. Draft Asset Lifecycle
// ==========================================

model DraftAsset {
   id                String   @id @default(cuid())
   
   // Link to revision (draft owner)
   revisionId        String
   revision          Revision @relation(fields: [revisionId], references: [id], onDelete: Cascade)
   
   // Storage metadata
   storagePath       String   // Supabase object path (e.g., "draft-temp/rev-{id}/filename.png")
   mimeType          String   // e.g., "image/png"
   fileSize          Int      // bytes
   filename          String   // original filename for reference
   contentHash       String?  // SHA256 or similar for dedup/integrity
   
   // Lifecycle status: uploaded, referenced, orphaned, migrated-to-repo, PR-merged, PR-closed, deleted, cleanup-failed
   status            String   @default("uploaded") // tracks asset state through lifecycle
   
   // PR linkage (populated after submit)
   githubPrNum       Int?     // PR number if this asset was migrated during submit
   
   // Migrated repo path (populated after successful migration)
   migratedRepoPath  String?  // e.g., "chapters/chapter-name/img/filename-hash.png"
   
   // Cleanup tracking
   cleanupAttempts   Int      @default(0)
   cleanupFailedAt   DateTime?
   cleanupFailureReason String?
   
   // Timestamps
   uploadedAt        DateTime @default(now())
   migratedAt        DateTime?
   deletedAt         DateTime?
   updatedAt         DateTime @updatedAt
   
   // Indexes for efficient reconciliation queries
    @@unique([revisionId, storagePath])
    @@index([status])
    @@index([githubPrNum])
    @@index([revisionId, status])
}

// ==========================================
// 6. Conflict Resolution Cache
// ==========================================

model ConflictResolution {
  id            String   @id @default(cuid())
  conflictHash  String   @unique
  filePath      String
  resolution    String
  createdAt     DateTime @default(now())
  updatedAt     DateTime @updatedAt
}