generator client {
  provider = "prisma-client-js"
  output   = "../node_modules/.prisma/client"
}

datasource db {
  provider = "postgresql"
}

model User {
  id        String   @id @default(cuid())
  email     String   @unique
  username  String   @unique
  password  String
  role      String   @default("user")
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  profile      Profile?
  canvases     Canvas[]
  groupMembers GroupMember[]
  activities   Activity[]
  followers    Follow[]     @relation("following")
  following    Follow[]     @relation("follower")
}

model Profile {
  id             String   @id @default(cuid())
  userId         String   @unique
  displayName    String
  bio            String   @default("")
  avatar         String   @default("")
  canvasCount    Int      @default(0)
  followerCount  Int      @default(0)
  followingCount Int      @default(0)
  joinedAt       DateTime @default(now())

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

model Canvas {
  id        String   @id
  name      String
  ownerId   String
  groupId   String?
  isPublic  Boolean  @default(false)
  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  nodes     CanvasNode[]
  edges     CanvasEdge[]
  owner     User          @relation(fields: [ownerId], references: [id], onDelete: Cascade)
  group     Group?        @relation(fields: [groupId], references: [id], onDelete: SetNull)
}

model CanvasNode {
  id          String  @id
  canvasId    String
  type        String
  x           Float
  y           Float
  width       Float
  height      Float
  text        String?
  file        String?
  state       String?
  label       String?
  assignedTo  String?
  alarm       String?
  scriptId    String?
  prompt      String?
  url         String?
  method      String?
  repo        String?
  branch      String?
  styleJson   String?

  canvas Canvas @relation(fields: [canvasId], references: [id], onDelete: Cascade)
}

model CanvasEdge {
  id        String @id
  canvasId  String
  fromNode  String
  fromSide  String
  toNode    String
  toSide    String

  canvas Canvas @relation(fields: [canvasId], references: [id], onDelete: Cascade)
}

model Group {
  id          String   @id @default(cuid())
  name        String
  description String   @default("")
  isPublic    Boolean  @default(true)
  ownerId     String
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  members GroupMember[]
  canvases Canvas[]
}

model GroupMember {
  id       String   @id @default(cuid())
  userId   String
  groupId  String
  role     String   @default("member")
  joinedAt DateTime @default(now())

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

  @@unique([userId, groupId])
}

model Activity {
  id         String   @id @default(cuid())
  userId     String
  action     String
  targetId   String
  targetType String
  timestamp  DateTime @default(now())
  metadata   String?

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

model Follow {
  id          String   @id @default(cuid())
  followerId  String
  followingId String
  since       DateTime @default(now())

  follower  User @relation("follower",  fields: [followerId],  references: [id], onDelete: Cascade)
  following User @relation("following", fields: [followingId], references: [id], onDelete: Cascade)

  @@unique([followerId, followingId])
}