update pay function

2025-11-23 18:11:48 +08:00
parent b582de9bc2
commit 7b3907a3bd
9 changed files with 3229 additions and 91 deletions
--- a/src/services/creditSystemService.js
+++ b/src/services/creditSystemService.js
@@ -0,0 +1,492 @@
+/**
+ * 积分系统服务
+ * 管理用户积分账户、交易、奖励等
+ */
+
+// ==================== 常量配置 ====================
+
+export const CREDIT_CONFIG = {
+  INITIAL_BALANCE: 10000,        // 初始积分
+  MIN_BALANCE: 100,              // 最低保留余额（破产保护）
+  MAX_SINGLE_BET: 1000,          // 单次下注上限
+  DAILY_BONUS: 100,              // 每日签到奖励
+  CREATE_TOPIC_COST: 100,        // 创建话题费用
+};
+
+// 积分账户存储（生产环境应使用数据库）
+const userAccounts = new Map();
+
+// 交易记录存储
+const transactions = [];
+
+// ==================== 账户管理 ====================
+
+/**
+ * 获取用户账户
+ * @param {string} userId - 用户ID
+ * @returns {Object} 用户账户信息
+ */
+export const getUserAccount = (userId) => {
+  if (!userAccounts.has(userId)) {
+    // 首次访问，创建新账户
+    const newAccount = {
+      user_id: userId,
+      balance: CREDIT_CONFIG.INITIAL_BALANCE,
+      frozen: 0,
+      total: CREDIT_CONFIG.INITIAL_BALANCE,
+      total_earned: CREDIT_CONFIG.INITIAL_BALANCE,
+      total_spent: 0,
+      total_profit: 0,
+      active_positions: [],
+      stats: {
+        total_topics: 0,
+        win_count: 0,
+        loss_count: 0,
+        win_rate: 0,
+        best_profit: 0,
+      },
+      last_daily_bonus: null,
+    };
+    userAccounts.set(userId, newAccount);
+  }
+
+  return userAccounts.get(userId);
+};
+
+/**
+ * 更新用户账户
+ * @param {string} userId - 用户ID
+ * @param {Object} updates - 更新内容
+ */
+export const updateUserAccount = (userId, updates) => {
+  const account = getUserAccount(userId);
+  const updated = { ...account, ...updates };
+  userAccounts.set(userId, updated);
+  return updated;
+};
+
+/**
+ * 获取用户积分余额
+ * @param {string} userId - 用户ID
+ * @returns {number} 可用余额
+ */
+export const getBalance = (userId) => {
+  const account = getUserAccount(userId);
+  return account.balance;
+};
+
+/**
+ * 检查用户是否能支付
+ * @param {string} userId - 用户ID
+ * @param {number} amount - 金额
+ * @returns {boolean} 是否能支付
+ */
+export const canAfford = (userId, amount) => {
+  const account = getUserAccount(userId);
+  const afterBalance = account.balance - amount;
+
+  // 必须保留最低余额
+  return afterBalance >= CREDIT_CONFIG.MIN_BALANCE;
+};
+
+// ==================== 积分操作 ====================
+
+/**
+ * 增加积分
+ * @param {string} userId - 用户ID
+ * @param {number} amount - 金额
+ * @param {string} reason - 原因
+ */
+export const addCredits = (userId, amount, reason = '系统增加') => {
+  const account = getUserAccount(userId);
+
+  const updated = {
+    balance: account.balance + amount,
+    total: account.total + amount,
+    total_earned: account.total_earned + amount,
+  };
+
+  updateUserAccount(userId, updated);
+
+  // 记录交易
+  logTransaction({
+    user_id: userId,
+    type: 'earn',
+    amount,
+    reason,
+    balance_after: updated.balance,
+  });
+
+  return updated;
+};
+
+/**
+ * 扣除积分
+ * @param {string} userId - 用户ID
+ * @param {number} amount - 金额
+ * @param {string} reason - 原因
+ * @throws {Error} 如果余额不足
+ */
+export const deductCredits = (userId, amount, reason = '系统扣除') => {
+  if (!canAfford(userId, amount)) {
+    throw new Error(`积分不足，需要${amount}积分，但只有${getBalance(userId)}积分`);
+  }
+
+  const account = getUserAccount(userId);
+
+  const updated = {
+    balance: account.balance - amount,
+    total_spent: account.total_spent + amount,
+  };
+
+  updateUserAccount(userId, updated);
+
+  // 记录交易
+  logTransaction({
+    user_id: userId,
+    type: 'spend',
+    amount: -amount,
+    reason,
+    balance_after: updated.balance,
+  });
+
+  return updated;
+};
+
+/**
+ * 冻结积分（席位占用）
+ * @param {string} userId - 用户ID
+ * @param {number} amount - 金额
+ */
+export const freezeCredits = (userId, amount) => {
+  const account = getUserAccount(userId);
+
+  if (account.balance < amount) {
+    throw new Error('可用余额不足');
+  }
+
+  const updated = {
+    balance: account.balance - amount,
+    frozen: account.frozen + amount,
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+/**
+ * 解冻积分
+ * @param {string} userId - 用户ID
+ * @param {number} amount - 金额
+ */
+export const unfreezeCredits = (userId, amount) => {
+  const account = getUserAccount(userId);
+
+  const updated = {
+    balance: account.balance + amount,
+    frozen: account.frozen - amount,
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+// ==================== 每日奖励 ====================
+
+/**
+ * 领取每日签到奖励
+ * @param {string} userId - 用户ID
+ * @returns {Object} 奖励信息
+ */
+export const claimDailyBonus = (userId) => {
+  const account = getUserAccount(userId);
+  const today = new Date().toDateString();
+
+  // 检查是否已领取
+  if (account.last_daily_bonus === today) {
+    return {
+      success: false,
+      message: '今日已领取',
+    };
+  }
+
+  // 发放奖励
+  addCredits(userId, CREDIT_CONFIG.DAILY_BONUS, '每日签到');
+
+  // 更新领取时间
+  updateUserAccount(userId, { last_daily_bonus: today });
+
+  return {
+    success: true,
+    amount: CREDIT_CONFIG.DAILY_BONUS,
+    message: `获得${CREDIT_CONFIG.DAILY_BONUS}积分`,
+  };
+};
+
+/**
+ * 检查今天是否已签到
+ * @param {string} userId - 用户ID
+ * @returns {boolean}
+ */
+export const hasClaimedToday = (userId) => {
+  const account = getUserAccount(userId);
+  const today = new Date().toDateString();
+  return account.last_daily_bonus === today;
+};
+
+// ==================== 持仓管理 ====================
+
+/**
+ * 添加持仓
+ * @param {string} userId - 用户ID
+ * @param {Object} position - 持仓信息
+ */
+export const addPosition = (userId, position) => {
+  const account = getUserAccount(userId);
+
+  const updated = {
+    active_positions: [...account.active_positions, position],
+    stats: {
+      ...account.stats,
+      total_topics: account.stats.total_topics + 1,
+    },
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+/**
+ * 移除持仓
+ * @param {string} userId - 用户ID
+ * @param {string} positionId - 持仓ID
+ */
+export const removePosition = (userId, positionId) => {
+  const account = getUserAccount(userId);
+
+  const updated = {
+    active_positions: account.active_positions.filter((p) => p.id !== positionId),
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+/**
+ * 更新持仓
+ * @param {string} userId - 用户ID
+ * @param {string} positionId - 持仓ID
+ * @param {Object} updates - 更新内容
+ */
+export const updatePosition = (userId, positionId, updates) => {
+  const account = getUserAccount(userId);
+
+  const updated = {
+    active_positions: account.active_positions.map((p) =>
+      p.id === positionId ? { ...p, ...updates } : p
+    ),
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+/**
+ * 获取用户持仓
+ * @param {string} userId - 用户ID
+ * @param {string} topicId - 话题ID（可选）
+ * @returns {Array} 持仓列表
+ */
+export const getUserPositions = (userId, topicId = null) => {
+  const account = getUserAccount(userId);
+
+  if (topicId) {
+    return account.active_positions.filter((p) => p.topic_id === topicId);
+  }
+
+  return account.active_positions;
+};
+
+// ==================== 统计更新 ====================
+
+/**
+ * 记录胜利
+ * @param {string} userId - 用户ID
+ * @param {number} profit - 盈利金额
+ */
+export const recordWin = (userId, profit) => {
+  const account = getUserAccount(userId);
+
+  const newWinCount = account.stats.win_count + 1;
+  const totalGames = newWinCount + account.stats.loss_count;
+  const winRate = (newWinCount / totalGames) * 100;
+
+  const updated = {
+    total_profit: account.total_profit + profit,
+    stats: {
+      ...account.stats,
+      win_count: newWinCount,
+      win_rate: winRate,
+      best_profit: Math.max(account.stats.best_profit, profit),
+    },
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+/**
+ * 记录失败
+ * @param {string} userId - 用户ID
+ * @param {number} loss - 损失金额
+ */
+export const recordLoss = (userId, loss) => {
+  const account = getUserAccount(userId);
+
+  const newLossCount = account.stats.loss_count + 1;
+  const totalGames = account.stats.win_count + newLossCount;
+  const winRate = (account.stats.win_count / totalGames) * 100;
+
+  const updated = {
+    total_profit: account.total_profit - loss,
+    stats: {
+      ...account.stats,
+      loss_count: newLossCount,
+      win_rate: winRate,
+    },
+  };
+
+  updateUserAccount(userId, updated);
+  return updated;
+};
+
+// ==================== 排行榜 ====================
+
+/**
+ * 获取积分排行榜
+ * @param {number} limit - 返回数量
+ * @returns {Array} 排行榜数据
+ */
+export const getLeaderboard = (limit = 100) => {
+  const accounts = Array.from(userAccounts.values());
+
+  return accounts
+    .sort((a, b) => b.total - a.total)
+    .slice(0, limit)
+    .map((account, index) => ({
+      rank: index + 1,
+      user_id: account.user_id,
+      total: account.total,
+      total_profit: account.total_profit,
+      win_rate: account.stats.win_rate,
+    }));
+};
+
+/**
+ * 获取用户排名
+ * @param {string} userId - 用户ID
+ * @returns {number} 排名
+ */
+export const getUserRank = (userId) => {
+  const leaderboard = getLeaderboard(1000);
+  const index = leaderboard.findIndex((item) => item.user_id === userId);
+  return index >= 0 ? index + 1 : -1;
+};
+
+// ==================== 交易记录 ====================
+
+/**
+ * 记录交易
+ * @param {Object} transaction - 交易信息
+ */
+const logTransaction = (transaction) => {
+  const record = {
+    id: `tx_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`,
+    timestamp: new Date().toISOString(),
+    ...transaction,
+  };
+
+  transactions.push(record);
+  return record;
+};
+
+/**
+ * 获取用户交易记录
+ * @param {string} userId - 用户ID
+ * @param {number} limit - 返回数量
+ * @returns {Array} 交易记录
+ */
+export const getUserTransactions = (userId, limit = 50) => {
+  return transactions
+    .filter((tx) => tx.user_id === userId)
+    .sort((a, b) => new Date(b.timestamp) - new Date(a.timestamp))
+    .slice(0, limit);
+};
+
+// ==================== 批量操作 ====================
+
+/**
+ * 批量发放积分（如活动奖励）
+ * @param {Array} recipients - [{user_id, amount, reason}]
+ */
+export const batchAddCredits = (recipients) => {
+  const results = recipients.map(({ user_id, amount, reason }) => {
+    try {
+      return {
+        user_id,
+        success: true,
+        account: addCredits(user_id, amount, reason),
+      };
+    } catch (error) {
+      return {
+        user_id,
+        success: false,
+        error: error.message,
+      };
+    }
+  });
+
+  return results;
+};
+
+// ==================== 导出所有功能 ====================
+
+export default {
+  CREDIT_CONFIG,
+
+  // 账户管理
+  getUserAccount,
+  updateUserAccount,
+  getBalance,
+  canAfford,
+
+  // 积分操作
+  addCredits,
+  deductCredits,
+  freezeCredits,
+  unfreezeCredits,
+
+  // 每日奖励
+  claimDailyBonus,
+  hasClaimedToday,
+
+  // 持仓管理
+  addPosition,
+  removePosition,
+  updatePosition,
+  getUserPositions,
+
+  // 统计更新
+  recordWin,
+  recordLoss,
+
+  // 排行榜
+  getLeaderboard,
+  getUserRank,
+
+  // 交易记录
+  getUserTransactions,
+
+  // 批量操作
+  batchAddCredits,
+};