update pay function

src/services/predictionMarketService.api.js

@@ -0,0 +1,274 @@
+/**
+ * 预测市场服务 - API 版本
+ * 调用真实的后端 API，数据存储到 MySQL 数据库
+ */
+
+import axios from 'axios';
+import { getApiBase } from '@utils/apiConfig';
+
+const api = axios.create({
+  baseURL: getApiBase(),
+  timeout: 10000,
+  withCredentials: true, // 携带 Cookie（session）
+});
+
+// ==================== 积分系统 API ====================
+
+/**
+ * 获取用户积分账户
+ */
+export const getUserAccount = async () => {
+  try {
+    const response = await api.get('/api/prediction/credit/account');
+    return response.data;
+  } catch (error) {
+    console.error('获取积分账户失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 领取每日奖励（100积分）
+ */
+export const claimDailyBonus = async () => {
+  try {
+    const response = await api.post('/api/prediction/credit/daily-bonus');
+    return response.data;
+  } catch (error) {
+    console.error('领取每日奖励失败:', error);
+    throw error;
+  }
+};
+
+// ==================== 预测话题 API ====================
+
+/**
+ * 创建预测话题
+ * @param {Object} topicData - { title, description, category, deadline }
+ */
+export const createTopic = async (topicData) => {
+  try {
+    const response = await api.post('/api/prediction/topics', topicData);
+    return response.data;
+  } catch (error) {
+    console.error('创建预测话题失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 获取预测话题列表
+ * @param {Object} params - { status, category, sort_by, page, per_page }
+ */
+export const getTopics = async (params = {}) => {
+  try {
+    const response = await api.get('/api/prediction/topics', { params });
+    return response.data;
+  } catch (error) {
+    console.error('获取话题列表失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 获取预测话题详情
+ * @param {number} topicId
+ */
+export const getTopicDetail = async (topicId) => {
+  try {
+    const response = await api.get(`/api/prediction/topics/${topicId}`);
+    return response.data;
+  } catch (error) {
+    console.error('获取话题详情失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 结算预测话题（仅创建者可操作）
+ * @param {number} topicId
+ * @param {string} result - 'yes' | 'no' | 'draw'
+ */
+export const settleTopic = async (topicId, result) => {
+  try {
+    const response = await api.post(`/api/prediction/topics/${topicId}/settle`, { result });
+    return response.data;
+  } catch (error) {
+    console.error('结算话题失败:', error);
+    throw error;
+  }
+};
+
+// ==================== 交易 API ====================
+
+/**
+ * 买入预测份额
+ * @param {Object} tradeData - { topic_id, direction, shares }
+ */
+export const buyShares = async (tradeData) => {
+  try {
+    const response = await api.post('/api/prediction/trade/buy', tradeData);
+    return response.data;
+  } catch (error) {
+    console.error('买入份额失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 获取用户持仓列表
+ */
+export const getUserPositions = async () => {
+  try {
+    const response = await api.get('/api/prediction/positions');
+    return response.data;
+  } catch (error) {
+    console.error('获取持仓列表失败:', error);
+    throw error;
+  }
+};
+
+// ==================== 评论 API ====================
+
+/**
+ * 发表话题评论
+ * @param {number} topicId
+ * @param {Object} commentData - { content, parent_id }
+ */
+export const createComment = async (topicId, commentData) => {
+  try {
+    const response = await api.post(`/api/prediction/topics/${topicId}/comments`, commentData);
+    return response.data;
+  } catch (error) {
+    console.error('发表评论失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 获取话题评论列表
+ * @param {number} topicId
+ * @param {Object} params - { page, per_page }
+ */
+export const getComments = async (topicId, params = {}) => {
+  try {
+    const response = await api.get(`/api/prediction/topics/${topicId}/comments`, { params });
+    return response.data;
+  } catch (error) {
+    console.error('获取评论列表失败:', error);
+    throw error;
+  }
+};
+
+/**
+ * 点赞/取消点赞评论
+ * @param {number} commentId
+ */
+export const likeComment = async (commentId) => {
+  try {
+    const response = await api.post(`/api/prediction/comments/${commentId}/like`);
+    return response.data;
+  } catch (error) {
+    console.error('点赞评论失败:', error);
+    throw error;
+  }
+};
+
+// ==================== 工具函数（价格计算保留在前端，用于实时预览）====================
+
+export const MARKET_CONFIG = {
+  MAX_SEATS_PER_SIDE: 5,
+  TAX_RATE: 0.02,
+  MIN_PRICE: 50,
+  MAX_PRICE: 950,
+  BASE_PRICE: 500,
+};
+
+/**
+ * 计算当前价格（简化版AMM）
+ * @param {number} yesShares - Yes方总份额
+ * @param {number} noShares - No方总份额
+ * @returns {Object} {yes: price, no: price}
+ */
+export const calculatePrice = (yesShares, noShares) => {
+  const totalShares = yesShares + noShares;
+
+  if (totalShares === 0) {
+    return {
+      yes: MARKET_CONFIG.BASE_PRICE,
+      no: MARKET_CONFIG.BASE_PRICE,
+    };
+  }
+
+  const yesProb = yesShares / totalShares;
+  const noProb = noShares / totalShares;
+
+  let yesPrice = yesProb * 1000;
+  let noPrice = noProb * 1000;
+
+  yesPrice = Math.max(MARKET_CONFIG.MIN_PRICE, Math.min(MARKET_CONFIG.MAX_PRICE, yesPrice));
+  noPrice = Math.max(MARKET_CONFIG.MIN_PRICE, Math.min(MARKET_CONFIG.MAX_PRICE, noPrice));
+
+  return { yes: Math.round(yesPrice), no: Math.round(noPrice) };
+};
+
+/**
+ * 计算交易税
+ * @param {number} amount - 交易金额
+ * @returns {number} 税费
+ */
+export const calculateTax = (amount) => {
+  return Math.floor(amount * MARKET_CONFIG.TAX_RATE);
+};
+
+/**
+ * 计算买入成本（用于前端预览）
+ * @param {number} currentShares - 当前方总份额
+ * @param {number} otherShares - 对手方总份额
+ * @param {number} buyAmount - 买入数量
+ * @returns {Object} { amount, tax, total }
+ */
+export const calculateBuyCost = (currentShares, otherShares, buyAmount) => {
+  const currentPrice = calculatePrice(currentShares, otherShares);
+  const afterShares = currentShares + buyAmount;
+  const afterPrice = calculatePrice(afterShares, otherShares);
+
+  const avgPrice = (currentPrice.yes + afterPrice.yes) / 2;
+  const amount = avgPrice * buyAmount;
+  const tax = calculateTax(amount);
+  const total = amount + tax;
+
+  return {
+    amount: Math.round(amount),
+    tax: Math.round(tax),
+    total: Math.round(total),
+    avgPrice: Math.round(avgPrice),
+  };
+};
+
+export default {
+  // 积分系统
+  getUserAccount,
+  claimDailyBonus,
+
+  // 话题管理
+  createTopic,
+  getTopics,
+  getTopicDetail,
+  settleTopic,
+
+  // 交易
+  buyShares,
+  getUserPositions,
+
+  // 评论
+  createComment,
+  getComments,
+  likeComment,
+
+  // 工具函数
+  calculatePrice,
+  calculateTax,
+  calculateBuyCost,
+  MARKET_CONFIG,
+};