generator client {
  provider        = "prisma-client-js"
  binaryTargets   = ["native", "debian-openssl-3.0.x", "linux-arm64-openssl-3.0.x"]
  previewFeatures = ["metrics", "tracing", "relationJoins", "nativeDistinct"]
}

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

model User {
  id              String    @id @default(uuid()) @db.VarChar
  name            String    @db.VarChar
  email           String    @unique @db.VarChar
  emailVerifiedAt DateTime? @map("email_verified") @db.Timestamptz(3)
  avatarUrl       String?   @map("avatar_url") @db.VarChar
  createdAt       DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)
  /// Not available if user signed up through OAuth providers
  password        String?   @db.VarChar
  /// Indicate whether the user finished the signup progress.
  /// for example, the value will be false if user never registered and invited into a workspace by others.
  registered      Boolean   @default(true)

  features              UserFeature[]
  customer              UserStripeCustomer?
  subscriptions         UserSubscription[]
  invoices              UserInvoice[]
  workspacePermissions  WorkspaceUserPermission[]
  pagePermissions       WorkspacePageUserPermission[]
  connectedAccounts     ConnectedAccount[]
  sessions              UserSession[]
  aiSessions            AiSession[]
  updatedRuntimeConfigs RuntimeConfig[]
  userSnapshots         UserSnapshot[]
  createdSnapshot       Snapshot[]                    @relation("createdSnapshot")
  updatedSnapshot       Snapshot[]                    @relation("updatedSnapshot")
  createdUpdate         Update[]                      @relation("createdUpdate")
  createdHistory        SnapshotHistory[]             @relation("createdHistory")

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

model ConnectedAccount {
  id                String    @id @default(uuid()) @db.VarChar
  userId            String    @map("user_id") @db.VarChar
  provider          String    @db.VarChar
  providerAccountId String    @map("provider_account_id") @db.VarChar
  scope             String?   @db.Text
  accessToken       String?   @map("access_token") @db.Text
  refreshToken      String?   @map("refresh_token") @db.Text
  expiresAt         DateTime? @map("expires_at") @db.Timestamptz(3)
  createdAt         DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt         DateTime  @updatedAt @map("updated_at") @db.Timestamptz(3)

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

  @@index([userId])
  @@index([providerAccountId])
  @@map("user_connected_accounts")
}

model Session {
  id           String        @id @default(uuid()) @db.VarChar
  createdAt    DateTime      @default(now()) @map("created_at") @db.Timestamptz(3)
  userSessions UserSession[]

  // @deprecated use [UserSession.expiresAt]
  deprecated_expiresAt DateTime? @map("expires_at") @db.Timestamptz(3)

  @@map("multiple_users_sessions")
}

model UserSession {
  id        String    @id @default(uuid()) @db.VarChar
  sessionId String    @map("session_id") @db.VarChar
  userId    String    @map("user_id") @db.VarChar
  expiresAt DateTime? @map("expires_at") @db.Timestamptz(3)
  createdAt DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)

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

  @@unique([sessionId, userId])
  @@map("user_sessions")
}

model VerificationToken {
  token      String   @db.VarChar
  type       Int      @db.SmallInt
  credential String?  @db.Text
  expiresAt  DateTime @db.Timestamptz(3)

  @@unique([type, token])
  @@map("verification_tokens")
}

model Workspace {
  id               String   @id @default(uuid()) @db.VarChar
  public           Boolean
  enableUrlPreview Boolean  @default(false) @map("enable_url_preview")
  createdAt        DateTime @default(now()) @map("created_at") @db.Timestamptz(3)

  pages           WorkspacePage[]
  permissions     WorkspaceUserPermission[]
  pagePermissions WorkspacePageUserPermission[]
  features        WorkspaceFeature[]

  @@map("workspaces")
}

// Table for workspace page meta data
// NOTE:
//   We won't make sure every page has a corresponding record in this table.
//   Only the ones that have ever changed will have records here,
//   and for others we will make sure it's has a default value return in our bussiness logic.
model WorkspacePage {
  workspaceId String  @map("workspace_id") @db.VarChar
  pageId      String  @map("page_id") @db.VarChar
  public      Boolean @default(false)
  // Page/Edgeless
  mode        Int     @default(0) @db.SmallInt

  workspace Workspace @relation(fields: [workspaceId], references: [id], onDelete: Cascade)

  @@id([workspaceId, pageId])
  @@map("workspace_pages")
}

model WorkspaceUserPermission {
  id          String   @id @default(uuid()) @db.VarChar
  workspaceId String   @map("workspace_id") @db.VarChar
  userId      String   @map("user_id") @db.VarChar
  // Read/Write
  type        Int      @db.SmallInt
  /// Whether the permission invitation is accepted by the user
  accepted    Boolean  @default(false)
  createdAt   DateTime @default(now()) @map("created_at") @db.Timestamptz(3)

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

  @@unique([workspaceId, userId])
  // optimize for quering user's workspace permissions
  @@index(userId)
  @@map("workspace_user_permissions")
}

model WorkspacePageUserPermission {
  id          String   @id @default(uuid()) @db.VarChar
  workspaceId String   @map("workspace_id") @db.VarChar
  pageId      String   @map("page_id") @db.VarChar
  userId      String   @map("user_id") @db.VarChar
  // Read/Write
  type        Int      @db.SmallInt
  /// Whether the permission invitation is accepted by the user
  accepted    Boolean  @default(false)
  createdAt   DateTime @default(now()) @map("created_at") @db.Timestamptz(3)

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

  @@unique([workspaceId, pageId, userId])
  @@map("workspace_page_user_permissions")
}

// feature gates is a way to enable/disable features for a user
// for example:
// - early access is a feature that allow some users to access the insider version
// - pro plan is a quota that allow some users access to more resources after they pay
model UserFeature {
  id        Int    @id @default(autoincrement())
  userId    String @map("user_id") @db.VarChar
  featureId Int    @map("feature_id") @db.Integer

  // we will record the reason why the feature is enabled/disabled
  // for example:
  // - pro_plan_v1: "user buy the pro plan"
  reason    String    @db.VarChar
  // record the quota enabled time
  createdAt DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)
  // record the quota expired time, pay plan is a subscription, so it will expired
  expiredAt DateTime? @map("expired_at") @db.Timestamptz(3)
  // whether the feature is activated
  // for example:
  // - if we switch the user to another plan, we will set the old plan to deactivated, but dont delete it
  activated Boolean   @default(false)

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

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

// feature gates is a way to enable/disable features for a workspace
// for example:
// - copilet is a feature that allow some users in a workspace to access the copilet feature
model WorkspaceFeature {
  id          Int    @id @default(autoincrement())
  workspaceId String @map("workspace_id") @db.VarChar
  featureId   Int    @map("feature_id") @db.Integer

  // we will record the reason why the feature is enabled/disabled
  // for example:
  // - copilet_v1: "owner buy the copilet feature package"
  reason    String    @db.VarChar
  // record the feature enabled time
  createdAt DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)
  // record the quota expired time, pay plan is a subscription, so it will expired
  expiredAt DateTime? @map("expired_at") @db.Timestamptz(3)
  // whether the feature is activated
  // for example:
  // - if owner unsubscribe a feature package, we will set the feature to deactivated, but dont delete it
  activated Boolean   @default(false)

  feature   Feature   @relation(fields: [featureId], references: [id], onDelete: Cascade)
  workspace Workspace @relation(fields: [workspaceId], references: [id], onDelete: Cascade)

  @@map("workspace_features")
}

model Feature {
  id        Int      @id @default(autoincrement())
  feature   String   @db.VarChar
  version   Int      @default(0) @db.Integer
  // 0: feature, 1: quota
  type      Int      @db.Integer
  // configs, define by feature conntroller
  configs   Json     @db.Json
  createdAt DateTime @default(now()) @map("created_at") @db.Timestamptz(3)

  UserFeatureGates  UserFeature[]
  WorkspaceFeatures WorkspaceFeature[]

  @@unique([feature, version])
  @@map("features")
}

// the latest snapshot of each doc that we've seen
// Snapshot + Updates are the latest state of the doc
model Snapshot {
  workspaceId String   @map("workspace_id") @db.VarChar
  id          String   @default(uuid()) @map("guid") @db.VarChar
  blob        Bytes    @db.ByteA
  state       Bytes?   @db.ByteA
  createdAt   DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
  // the `updated_at` field will not record the time of record changed,
  // but the created time of last seen update that has been merged into snapshot.
  updatedAt   DateTime @map("updated_at") @db.Timestamptz(3)
  createdBy   String?  @map("created_by") @db.VarChar
  updatedBy   String?  @map("updated_by") @db.VarChar

  // should not delete origin snapshot even if user is deleted
  // we only delete the snapshot if the workspace is deleted
  createdByUser User? @relation(name: "createdSnapshot", fields: [createdBy], references: [id], onDelete: SetNull)
  updatedByUser User? @relation(name: "updatedSnapshot", fields: [updatedBy], references: [id], onDelete: SetNull)

  // @deprecated use updatedAt only
  seq Int? @default(0) @db.Integer

  // we need to clear all hanging updates and snapshots before enable the foreign key on workspaceId
  // workspace Workspace @relation(fields: [workspaceId], references: [id], onDelete: Cascade)

  @@id([workspaceId, id])
  @@index([workspaceId, updatedAt])
  @@map("snapshots")
}

// user snapshots are special snapshots for user storage like personal app settings, distinguished from workspace snapshots
// basically they share the same structure with workspace snapshots
// but for convenience, we don't fork the updates queue and hisotry for user snapshots, until we have to
// which means all operation on user snapshot will happen in-pace
model UserSnapshot {
  userId    String   @map("user_id") @db.VarChar
  id        String   @map("id") @db.VarChar
  blob      Bytes    @db.ByteA
  createdAt DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt DateTime @updatedAt @map("updated_at") @db.Timestamptz(3)

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

  @@id([userId, id])
  @@map("user_snapshots")
}

model Update {
  workspaceId String   @map("workspace_id") @db.VarChar
  id          String   @map("guid") @db.VarChar
  blob        Bytes    @db.ByteA
  createdAt   DateTime @map("created_at") @db.Timestamptz(3)
  createdBy   String?  @map("created_by") @db.VarChar

  // will delete createor record if createor's account is deleted
  createdByUser User? @relation(name: "createdUpdate", fields: [createdBy], references: [id], onDelete: SetNull)

  // @deprecated use createdAt only
  seq Int? @db.Integer

  @@id([workspaceId, id, createdAt])
  @@map("updates")
}

model SnapshotHistory {
  workspaceId String   @map("workspace_id") @db.VarChar
  id          String   @map("guid") @db.VarChar
  timestamp   DateTime @db.Timestamptz(3)
  blob        Bytes    @db.ByteA
  state       Bytes?   @db.ByteA
  expiredAt   DateTime @map("expired_at") @db.Timestamptz(3)
  createdBy   String?  @map("created_by") @db.VarChar

  // will delete createor record if creator's account is deleted
  createdByUser User? @relation(name: "createdHistory", fields: [createdBy], references: [id], onDelete: SetNull)

  @@id([workspaceId, id, timestamp])
  @@map("snapshot_histories")
}

model UserStripeCustomer {
  userId           String   @id @map("user_id") @db.VarChar
  stripeCustomerId String   @unique @map("stripe_customer_id") @db.VarChar
  createdAt        DateTime @default(now()) @map("created_at") @db.Timestamptz(3)

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

  @@map("user_stripe_customers")
}

model UserSubscription {
  id                   Int       @id @default(autoincrement()) @db.Integer
  userId               String    @map("user_id") @db.VarChar
  plan                 String    @db.VarChar(20)
  // yearly/monthly/lifetime
  recurring            String    @db.VarChar(20)
  // onetime subscription or anything else
  variant              String?    @db.VarChar(20)
  // subscription.id, null for linefetime payment or one time payment subscription
  stripeSubscriptionId String?   @unique @map("stripe_subscription_id")
  // subscription.status, active/past_due/canceled/unpaid...
  status               String    @db.VarChar(20)
  // subscription.current_period_start
  start                DateTime  @map("start") @db.Timestamptz(3)
  // subscription.current_period_end, null for lifetime payment
  end                  DateTime? @map("end") @db.Timestamptz(3)
  // subscription.billing_cycle_anchor
  nextBillAt           DateTime? @map("next_bill_at") @db.Timestamptz(3)
  // subscription.canceled_at
  canceledAt           DateTime? @map("canceled_at") @db.Timestamptz(3)
  // subscription.trial_start
  trialStart           DateTime? @map("trial_start") @db.Timestamptz(3)
  // subscription.trial_end
  trialEnd             DateTime? @map("trial_end") @db.Timestamptz(3)
  stripeScheduleId     String?   @map("stripe_schedule_id") @db.VarChar

  createdAt DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt DateTime @updatedAt @map("updated_at") @db.Timestamptz(3)
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([userId, plan])
  @@map("user_subscriptions")
}

model UserInvoice {
  id               Int      @id @default(autoincrement()) @db.Integer
  userId           String   @map("user_id") @db.VarChar
  stripeInvoiceId  String   @unique @map("stripe_invoice_id")
  currency         String   @db.VarChar(3)
  // CNY 12.50 stored as 1250
  amount           Int      @db.Integer
  status           String   @db.VarChar(20)
  plan             String   @db.VarChar(20)
  recurring        String   @db.VarChar(20)
  createdAt        DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt        DateTime @updatedAt @map("updated_at") @db.Timestamptz(3)
  // billing reason
  reason           String   @db.VarChar
  lastPaymentError String?  @map("last_payment_error") @db.Text
  // stripe hosted invoice link
  link             String?  @db.Text

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

  @@map("user_invoices")
}

enum AiPromptRole {
  system
  assistant
  user
}

model AiPromptMessage {
  promptId    Int          @map("prompt_id") @db.Integer
  // if a group of prompts contains multiple sentences, idx specifies the order of each sentence
  idx         Int          @db.Integer
  // system/assistant/user
  role        AiPromptRole
  // prompt content
  content     String       @db.Text
  attachments Json?        @db.Json
  params      Json?        @db.Json
  createdAt   DateTime     @default(now()) @map("created_at") @db.Timestamptz(3)

  prompt AiPrompt @relation(fields: [promptId], references: [id], onDelete: Cascade)

  @@unique([promptId, idx])
  @@map("ai_prompts_messages")
}

model AiPrompt {
  id        Int      @id @default(autoincrement()) @db.Integer
  name      String   @unique @db.VarChar(32)
  // an mark identifying which view to use to display the session
  // it is only used in the frontend and does not affect the backend
  action    String?  @db.VarChar
  model     String   @db.VarChar
  config    Json?    @db.Json
  createdAt DateTime @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt DateTime @default(now()) @map("updated_at") @db.Timestamptz(3)
  // whether the prompt is modified by the admin panel
  modified  Boolean  @default(false)

  messages AiPromptMessage[]
  sessions AiSession[]

  @@map("ai_prompts_metadata")
}

model AiSessionMessage {
  id          String       @id @default(uuid()) @db.VarChar
  sessionId   String       @map("session_id") @db.VarChar
  role        AiPromptRole
  content     String       @db.Text
  attachments Json?        @db.Json
  params      Json?        @db.Json
  createdAt   DateTime     @default(now()) @map("created_at") @db.Timestamptz(3)
  updatedAt   DateTime     @updatedAt @map("updated_at") @db.Timestamptz(3)

  session AiSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)

  @@index([sessionId])
  @@map("ai_sessions_messages")
}

model AiSession {
  id              String    @id @default(uuid()) @db.VarChar
  userId          String    @map("user_id") @db.VarChar
  workspaceId     String    @map("workspace_id") @db.VarChar
  docId           String    @map("doc_id") @db.VarChar
  promptName      String    @map("prompt_name") @db.VarChar(32)
  // the session id of the parent session if this session is a forked session
  parentSessionId String?   @map("parent_session_id") @db.VarChar
  messageCost     Int       @default(0)
  tokenCost       Int       @default(0)
  createdAt       DateTime  @default(now()) @map("created_at") @db.Timestamptz(3)
  deletedAt       DateTime? @map("deleted_at") @db.Timestamptz(3)

  user     User               @relation(fields: [userId], references: [id], onDelete: Cascade)
  prompt   AiPrompt           @relation(fields: [promptName], references: [name], onDelete: Cascade)
  messages AiSessionMessage[]

  @@index([userId])
  @@index([userId, workspaceId])
  @@map("ai_sessions_metadata")
}

model DataMigration {
  id         String    @id @default(uuid()) @db.VarChar
  name       String    @db.VarChar
  startedAt  DateTime  @default(now()) @map("started_at") @db.Timestamptz(3)
  finishedAt DateTime? @map("finished_at") @db.Timestamptz(3)

  @@map("_data_migrations")
}

enum RuntimeConfigType {
  String
  Number
  Boolean
  Object
  Array
}

model RuntimeConfig {
  id            String            @id @db.VarChar
  type          RuntimeConfigType
  module        String            @db.VarChar
  key           String            @db.VarChar
  value         Json              @db.Json
  description   String            @db.Text
  updatedAt     DateTime          @updatedAt @map("updated_at") @db.Timestamptz(3)
  deletedAt     DateTime?         @map("deleted_at") @db.Timestamptz(3)
  lastUpdatedBy String?           @map("last_updated_by") @db.VarChar

  lastUpdatedByUser User? @relation(fields: [lastUpdatedBy], references: [id])

  @@unique([module, key])
  @@map("app_runtime_settings")
}