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

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

// ==================== 交易账户 ====================

// 用户交易账户
model TradingAccount {
  id                String   @id @default(uuid())
  accountSequence   String   @unique
  shareBalance      Decimal  @db.Decimal(30, 8) @default(0) // 积分股余额
  cashBalance       Decimal  @db.Decimal(30, 8) @default(0) // 现金余额
  frozenShares      Decimal  @db.Decimal(30, 8) @default(0) // 冻结积分股
  frozenCash        Decimal  @db.Decimal(30, 8) @default(0) // 冻结现金
  totalBought       Decimal  @db.Decimal(30, 8) @default(0) // 累计买入量
  totalSold         Decimal  @db.Decimal(30, 8) @default(0) // 累计卖出量
  createdAt         DateTime @default(now())
  updatedAt         DateTime @updatedAt

  orders            Order[]
  transactions      TradingTransaction[]

  @@map("trading_accounts")
}

// ==================== 订单 ====================

// 交易订单
model Order {
  id                String      @id @default(uuid())
  orderNo           String      @unique // 订单号
  accountSequence   String
  type              String      // BUY, SELL
  status            String      // PENDING, PARTIAL, FILLED, CANCELLED
  price             Decimal     @db.Decimal(30, 18) // 挂单价格
  quantity          Decimal     @db.Decimal(30, 8) // 订单数量
  filledQuantity    Decimal     @db.Decimal(30, 8) @default(0) // 已成交数量
  remainingQuantity Decimal     @db.Decimal(30, 8) // 剩余数量
  averagePrice      Decimal     @db.Decimal(30, 18) @default(0) // 平均成交价
  totalAmount       Decimal     @db.Decimal(30, 8) @default(0) // 总成交金额
  createdAt         DateTime    @default(now())
  updatedAt         DateTime    @updatedAt
  cancelledAt       DateTime?
  completedAt       DateTime?

  account           TradingAccount @relation(fields: [accountSequence], references: [accountSequence])
  trades            Trade[]

  @@index([accountSequence, status])
  @@index([type, status, price])
  @@index([createdAt(sort: Desc)])
  @@map("orders")
}

// 成交记录
model Trade {
  id              String   @id @default(uuid())
  tradeNo         String   @unique
  buyOrderId      String
  sellOrderId     String
  buyerSequence   String
  sellerSequence  String
  price           Decimal  @db.Decimal(30, 18)
  quantity        Decimal  @db.Decimal(30, 8)
  amount          Decimal  @db.Decimal(30, 8) // price * quantity
  createdAt       DateTime @default(now())

  buyOrder        Order    @relation(fields: [buyOrderId], references: [id])

  @@index([buyerSequence])
  @@index([sellerSequence])
  @@index([createdAt(sort: Desc)])
  @@map("trades")
}

// ==================== 交易流水 ====================

model TradingTransaction {
  id              String   @id @default(uuid())
  accountSequence String
  type            String   // TRANSFER_IN, TRANSFER_OUT, BUY, SELL, FREEZE, UNFREEZE, DEPOSIT, WITHDRAW
  assetType       String   // SHARE, CASH
  amount          Decimal  @db.Decimal(30, 8)
  balanceBefore   Decimal  @db.Decimal(30, 8)
  balanceAfter    Decimal  @db.Decimal(30, 8)
  referenceId     String?
  referenceType   String?
  description     String?
  createdAt       DateTime @default(now())

  account         TradingAccount @relation(fields: [accountSequence], references: [accountSequence])

  @@index([accountSequence, createdAt(sort: Desc)])
  @@map("trading_transactions")
}

// ==================== 流通池 ====================

// 流通池
model CirculationPool {
  id              String   @id @default(uuid())
  totalShares     Decimal  @db.Decimal(30, 8) @default(0) // 流通池中的积分股
  totalCash       Decimal  @db.Decimal(30, 8) @default(0) // 流通池中的现金（股池）
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt

  @@map("circulation_pools")
}

// 流通池变动记录
model PoolTransaction {
  id          String   @id @default(uuid())
  type        String   // SHARE_IN, SHARE_OUT, CASH_IN, CASH_OUT
  amount      Decimal  @db.Decimal(30, 8)
  referenceId String?
  description String?
  createdAt   DateTime @default(now())

  @@index([createdAt(sort: Desc)])
  @@map("pool_transactions")
}

// ==================== K线数据 ====================

// 分钟K线
model MinuteKLine {
  id        String   @id @default(uuid())
  minute    DateTime @unique
  open      Decimal  @db.Decimal(30, 18)
  high      Decimal  @db.Decimal(30, 18)
  low       Decimal  @db.Decimal(30, 18)
  close     Decimal  @db.Decimal(30, 18)
  volume    Decimal  @db.Decimal(30, 8) // 成交量
  amount    Decimal  @db.Decimal(30, 8) // 成交额
  tradeCount Int     @default(0)        // 成交笔数
  createdAt DateTime @default(now())

  @@index([minute(sort: Desc)])
  @@map("minute_klines")
}

// 小时K线
model HourKLine {
  id        String   @id @default(uuid())
  hour      DateTime @unique
  open      Decimal  @db.Decimal(30, 18)
  high      Decimal  @db.Decimal(30, 18)
  low       Decimal  @db.Decimal(30, 18)
  close     Decimal  @db.Decimal(30, 18)
  volume    Decimal  @db.Decimal(30, 8)
  amount    Decimal  @db.Decimal(30, 8)
  tradeCount Int     @default(0)
  createdAt DateTime @default(now())

  @@index([hour(sort: Desc)])
  @@map("hour_klines")
}

// 日K线
model DayKLine {
  id        String   @id @default(uuid())
  date      DateTime @unique @db.Date
  open      Decimal  @db.Decimal(30, 18)
  high      Decimal  @db.Decimal(30, 18)
  low       Decimal  @db.Decimal(30, 18)
  close     Decimal  @db.Decimal(30, 18)
  volume    Decimal  @db.Decimal(30, 8)
  amount    Decimal  @db.Decimal(30, 8)
  tradeCount Int     @default(0)
  createdAt DateTime @default(now())

  @@index([date(sort: Desc)])
  @@map("day_klines")
}

// ==================== 划转记录 ====================

// 从挖矿账户划转记录
model TransferRecord {
  id                String   @id @default(uuid())
  transferNo        String   @unique
  accountSequence   String
  direction         String   // IN (从挖矿账户划入), OUT (划出到挖矿账户)
  amount            Decimal  @db.Decimal(30, 8)
  status            String   // PENDING, COMPLETED, FAILED
  miningTxId        String?  // 挖矿服务的交易ID
  errorMessage      String?
  createdAt         DateTime @default(now())
  completedAt       DateTime?

  @@index([accountSequence])
  @@index([status])
  @@map("transfer_records")
}

// ==================== Outbox ====================

model OutboxEvent {
  id            String    @id @default(uuid())
  aggregateType String
  aggregateId   String
  eventType     String
  payload       Json
  createdAt     DateTime  @default(now())
  processedAt   DateTime?

  @@index([processedAt])
  @@map("outbox_events")
}