refactor(coach): 重构教练组件，统一导入并简化UI实现与类型定义

store/userSlice.ts

@@ -1,7 +1,8 @@
 import { api, loadPersistedToken, setAuthToken, STORAGE_KEYS } from '@/services/api';
 import { updateUser, UpdateUserDto } from '@/services/users';
 import AsyncStorage from '@react-native-async-storage/async-storage';
-import { createAsyncThunk, createSlice, PayloadAction } from '@reduxjs/toolkit';
+import { createAsyncThunk, createSelector, createSlice, PayloadAction } from '@reduxjs/toolkit';
+import dayjs from 'dayjs';
 
 export type Gender = 'male' | 'female' | '';
 
@@ -24,6 +25,7 @@ export type UserProfile = {
 };
 
 export type WeightHistoryItem = {
+  id: string; // 添加 id 字段用于删除和更新操作
   weight: string;
   source: string;
   createdAt: string;
@@ -211,6 +213,32 @@ export const updateUserProfile = createAsyncThunk(
   }
 );
 
+// 删除体重记录
+export const deleteWeightRecord = createAsyncThunk(
+  'user/deleteWeightRecord',
+  async (recordId: string, { rejectWithValue }) => {
+    try {
+      await api.delete(`/api/users/weight-records/${recordId}`);
+      return recordId;
+    } catch (err: any) {
+      return rejectWithValue(err?.message ?? '删除体重记录失败');
+    }
+  }
+);
+
+// 更新体重记录
+export const updateWeightRecord = createAsyncThunk(
+  'user/updateWeightRecord',
+  async ({ id, weight }: { id: string; weight: number }, { rejectWithValue }) => {
+    try {
+      const data = await api.put<WeightHistoryItem>(`/api/users/weight-records/${id}`, { weight });
+      return data;
+    } catch (err: any) {
+      return rejectWithValue(err?.message ?? '更新体重记录失败');
+    }
+  }
+);
+
 const userSlice = createSlice({
   name: 'user',
   initialState,
@@ -286,9 +314,54 @@ const userSlice = createSlice({
       })
       .addCase(updateUserProfile.rejected, (state, action) => {
         state.error = (action.payload as string) ?? '更新用户资料失败';
+      })
+      .addCase(deleteWeightRecord.fulfilled, (state, action) => {
+        state.weightHistory = state.weightHistory.filter(record =>
+          record.id !== action.payload && record.createdAt !== action.payload
+        );
+      })
+      .addCase(deleteWeightRecord.rejected, (state, action) => {
+        state.error = (action.payload as string) ?? '删除体重记录失败';
+      })
+      .addCase(updateWeightRecord.fulfilled, (state, action) => {
+        const index = state.weightHistory.findIndex(record =>
+          record.id === action.payload.id || record.createdAt === action.payload.id
+        );
+        if (index !== -1) {
+          state.weightHistory[index] = { ...state.weightHistory[index], ...action.payload };
+        }
+      })
+      .addCase(updateWeightRecord.rejected, (state, action) => {
+        state.error = (action.payload as string) ?? '更新体重记录失败';
       });
   },
 });
 
 export const { updateProfile, setDailyStepsGoal, setDailyCaloriesGoal, setPilatesPurposes } = userSlice.actions;
+
+// Selectors
+export const selectUserProfile = (state: { user: UserState }) => state.user.profile;
+
+// 计算用户年龄的 selector
+export const selectUserAge = createSelector(
+  [selectUserProfile],
+  (profile) => {
+    if (!profile?.birthDate) return null;
+
+    const birthDate = dayjs(profile.birthDate);
+    const today = dayjs();
+
+    // 计算精确年龄（考虑月份和日期）
+    let age = today.year() - birthDate.year();
+
+    // 如果今年的生日还没到，年龄减1
+    if (today.month() < birthDate.month() ||
+      (today.month() === birthDate.month() && today.date() < birthDate.date())) {
+      age--;
+    }
+
+    return age;
+  }
+);
+
 export default userSlice.reducer;