feat: core domain models (habits, village, quests)

prisma/migrations/20260102113639_init/migration.sql

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+-- CreateTable
+CREATE TABLE "User" (
+    "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
+    "email" TEXT NOT NULL,
+    "createdAt" DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_email_key" ON "User"("email");

prisma/migrations/migration_lock.toml

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+# Please do not edit this file manually
+# It should be added in your version-control system (e.g., Git)
+provider = "sqlite"

prisma/schema.prisma

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+// 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 @db.Date // 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 @db.Date // 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
+}