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

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

model User {
  id              String     @id @default(cuid())
  name            String?
  email           String     @unique
  emailVerified   DateTime?
  image           String?
  hashedPassword  String?
  accounts        Account[]
  sessions        Session[]
  workspaces      Workspace[] @relation("WorkspaceOwner")
  memberships     Member[]
  comments        Comment[]
  mentions        Mention[]  @relation("MentionedUser")
  createdMentions Mention[]  @relation("MentionCreator")
  notifications   Notification[]
  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)
  createdAt         DateTime  @default(now())
  updatedAt         DateTime  @updatedAt

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

model VerificationToken {
  id         String   @id @default(cuid())
  identifier String
  token      String   @unique
  expires    DateTime

  @@unique([identifier, token])
}

model Workspace {
  id          String     @id @default(cuid())
  name        String
  imageUrl    String
  inviteCode  String     @unique
  userId      String
  owner       User       @relation(fields: [userId], references: [id], name: "WorkspaceOwner")
  members     Member[]
  projects    Project[]
  tasks       Task[]
  epics       Epic[]
  mentions    Mention[]
  notifications Notification[]
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt
}

model Member {
  id          String     @id @default(cuid())
  workspace   Workspace  @relation(fields: [workspaceId], references: [id])
  workspaceId String
  user        User       @relation(fields: [userId], references: [id])
  userId      String
  role        MemberRole
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt

  @@unique([workspaceId, userId])
  Task Task[]
  Epic Epic[]
}

model Project {
  id          String     @id @default(cuid())
  name        String
  imageUrl    String
  workspace   Workspace  @relation(fields: [workspaceId], references: [id])
  workspaceId String
  tasks       Task[]
  epics       Epic[]
  boards      Board[]
  labels      Label[]
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt
}

model Board {
  id          String     @id @default(cuid())
  name        String
  description String?
  project     Project    @relation(fields: [projectId], references: [id])
  projectId   String
  tasks       Task[]
  position    Float      @default(0)
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt
}

model Label {
  id        String   @id @default(cuid())
  labels    String[]
  projectId String
  project   Project  @relation(fields: [projectId], references: [id])
}

model Epic {
  id          String     @id @default(cuid())
  name        String
  description String?
  status      TaskStatus @default(BACKLOG)
  workspace   Workspace  @relation(fields: [workspaceId], references: [id])
  workspaceId String
  assignee    Member?    @relation(fields: [assigneeId], references: [id])
  assigneeId  String?
  project     Project?   @relation(fields: [projectId], references: [id])
  projectId   String?
  dueDate     DateTime?
  labels      String[]
  tasks       Task[]
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt
}

model Task {
  id          String     @id @default(cuid())
  name        String
  status      TaskStatus @default(BACKLOG)
  workspace   Workspace  @relation(fields: [workspaceId], references: [id])
  workspaceId String
  assignee    Member?    @relation(fields: [assigneeId], references: [id])
  assigneeId  String?
  project     Project?   @relation(fields: [projectId], references: [id])
  projectId   String?
  board       Board?     @relation(fields: [boardId], references: [id])
  boardId     String?
  epic        Epic?      @relation(fields: [epicId], references: [id])
  epicId      String?
  position    Float
  dueDate     DateTime?
  labels      String[]
  attachments String[]
  description String?
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt
  comments    Comment[]
  mentions    Mention[]
  notifications Notification[]
}

model Comment {
  id        String   @id @default(cuid())
  content   String
  taskId    String
  task      Task     @relation(fields: [taskId], references: [id], onDelete: Cascade)
  authorId  String
  author    User     @relation(fields: [authorId], references: [id])
  attachments String[]
  mentions  Mention[]
  notifications Notification[]
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt
}

model Mention {
  id          String     @id @default(cuid())
  mentionedUserId String
  mentionedUser   User    @relation(fields: [mentionedUserId], references: [id], name: "MentionedUser")
  createdById     String
  createdBy       User    @relation(fields: [createdById], references: [id], name: "MentionCreator")
  workspaceId     String
  workspace       Workspace @relation(fields: [workspaceId], references: [id])
  taskId          String?
  task            Task?     @relation(fields: [taskId], references: [id], onDelete: Cascade)
  commentId       String?
  comment         Comment?  @relation(fields: [commentId], references: [id], onDelete: Cascade)
  isRead          Boolean   @default(false)
  createdAt       DateTime  @default(now())
  updatedAt       DateTime  @updatedAt

  @@unique([mentionedUserId, taskId, commentId])
}

model Notification {
  id          String     @id @default(cuid())
  userId      String
  user        User       @relation(fields: [userId], references: [id], onDelete: Cascade)
  workspaceId String
  workspace   Workspace  @relation(fields: [workspaceId], references: [id], onDelete: Cascade)
  taskId      String?
  task        Task?      @relation(fields: [taskId], references: [id], onDelete: Cascade)
  commentId   String?
  comment     Comment?   @relation(fields: [commentId], references: [id], onDelete: Cascade)
  type        NotificationType
  title       String
  message     String
  data        Json?
  isRead      Boolean    @default(false)
  createdAt   DateTime   @default(now())
  updatedAt   DateTime   @updatedAt

  @@index([userId, isRead])
  @@index([workspaceId])
}

enum MemberRole {
  ADMIN
  MEMBER
}

enum TaskStatus {
  BACKLOG
  TODO
  IN_PROGRESS
  IN_REVIEW
  DONE
}

enum NotificationType {
  MENTION
  TASK_ASSIGNED
  WORKSPACE_ADDED
  COMMENT_REPLY
}