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

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

// prisma/schema.prisma

// Enums
// VillageObjectType: Defines the possible types of objects that can be placed in the village grid.
enum VillageObjectType {
  HOUSE
  FIELD
  ROAD
  FENCE
  OBSTACLE
}

// CropType: Defines the types of crops that can be planted.
enum CropType {
  BLUEBERRIES
  CORN
}

// User: Represents a registered user and stores their core profile,
// settings, and in-game resources like coins and experience points.
model User {
  id              Int      @id @default(autoincrement())
  email           String   @unique
  password        String
  nickname        String?
  avatar          String?  @default("/avatars/default.png")

  coins           Int      @default(0)
  exp             Int      @default(0)

  // User settings
  soundOn         Boolean  @default(true)
  confettiOn      Boolean  @default(true)

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

  // Relations
  habits          Habit[]
  dailyVisits     DailyVisit[]
  village         Village?
}

// Habit: A recurring task a user wants to build. Each habit belongs to a
// single user. The `daysOfWeek` field stores which days the habit is active.
model Habit {
  id          Int      @id @default(autoincrement())
  name        String
  // `daysOfWeek` is a JSON array of numbers [0, 1, ..., 6], where 0 is Sunday.
  daysOfWeek  Json
  createdAt   DateTime @default(now())
  updatedAt   DateTime @updatedAt

  // Relations
  user          User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  userId        Int
  completions HabitCompletion[]
}

// HabitCompletion: Records a single completion of a habit on a specific date.
// This creates a history of the user's progress for each habit.
model HabitCompletion {
  id      Int      @id @default(autoincrement())
  date    DateTime // Store only the date part

  // Relations
  habit   Habit    @relation(fields: [habitId], references: [id], onDelete: Cascade)
  habitId Int

  @@unique([habitId, date]) // A habit can only be completed once per day
}

// DailyVisit: Tracks the user's daily visit for the "I visited the site today"
// quest and for calculating 5-day streaks.
model DailyVisit {
  id     Int      @id @default(autoincrement())
  date   DateTime // Store only the date part

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

  @@unique([userId, date]) // A user can only have one recorded visit per day
}

// Village: The user's personal village, which acts as a container for all
// village objects. Each user has exactly one village.
model Village {
  id Int @id @default(autoincrement())

  // Relations
  user          User            @relation(fields: [userId], references: [id], onDelete: Cascade)
  userId        Int             @unique // Each user has only one village
  objects       VillageObject[]
}

// VillageObject: An object (e.g., house, field, obstacle) placed on the
// village grid. It stores the object's type, its coordinates, and optionally
// details if it's an obstacle or a planted crop.
model VillageObject {
  id             Int               @id @default(autoincrement())
  type           VillageObjectType
  x              Int
  y              Int
  obstacleMetadata String? // Stores metadata for obstacles (e.g., "rock", "bush").

  // Crop details (only if type is FIELD)
  cropType       CropType?
  plantedAt      DateTime?

  // Relations
  village   Village         @relation(fields: [villageId], references: [id], onDelete: Cascade)
  villageId Int

  @@unique([villageId, x, y]) // Ensure only one object per grid cell per village
}