28c4d7b3b4
- 实现拍照识别食物功能（集成大语言模型视觉能力） - 实现智能对话功能（集成大语言模型流式输出） - 实现食物记录和卡路里管理功能 - 实现体重记录和统计功能 - 实现健康数据管理页面 - 配置数据库表结构（用户、食物记录、体重记录） - 实现Express后端API路由 - 配置Tab导航和前端页面 - 采用健康运动配色方案
347 lines
12 KiB
TypeScript
347 lines
12 KiB
TypeScript
import React, { useState, useEffect, useMemo } from 'react';
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import { View, ScrollView, TouchableOpacity, TextInput, Modal, Alert } from 'react-native';
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import { useTheme } from '@/hooks/useTheme';
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import { Screen } from '@/components/Screen';
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import { ThemedText } from '@/components/ThemedText';
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import { ThemedView } from '@/components/ThemedView';
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import { FontAwesome6 } from '@expo/vector-icons';
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import { createStyles } from './styles';
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const MOCK_USER_ID = 'mock-user-001';
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interface WeightRecord {
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id: string;
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weight: number;
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note: string;
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recordedAt: string;
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}
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export default function StatsScreen() {
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const { theme, isDark } = useTheme();
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const styles = useMemo(() => createStyles(theme), [theme]);
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const [weightRecords, setWeightRecords] = useState<WeightRecord[]>([]);
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const [modalVisible, setModalVisible] = useState(false);
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const [newWeight, setNewWeight] = useState('');
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const [newNote, setNewNote] = useState('');
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const [loading, setLoading] = useState(false);
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const [saving, setSaving] = useState(false);
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// 获取体重记录
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const fetchWeightRecords = async () => {
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setLoading(true);
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try {
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/**
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* 服务端文件：server/src/routes/weight-records.ts
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* 接口：GET /api/v1/weight-records
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* Query 参数：userId: string
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*/
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const response = await fetch(
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`${process.env.EXPO_PUBLIC_BACKEND_BASE_URL}/api/v1/weight-records?userId=${MOCK_USER_ID}`
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);
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const data = await response.json();
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if (data.success) {
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setWeightRecords(data.data);
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}
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} catch (error) {
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console.error('Failed to fetch weight records:', error);
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} finally {
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setLoading(false);
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}
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};
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useEffect(() => {
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fetchWeightRecords();
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}, []);
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// 添加体重记录
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const addWeightRecord = async () => {
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if (!newWeight) {
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Alert.alert('提示', '请输入体重');
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return;
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}
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setSaving(true);
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try {
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const recordData = {
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userId: MOCK_USER_ID,
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weight: parseFloat(newWeight),
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note: newNote,
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recordedAt: new Date().toISOString(),
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};
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/**
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* 服务端文件：server/src/routes/weight-records.ts
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* 接口：POST /api/v1/weight-records
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* Body 参数：userId: string, weight: number, note?: string, recordedAt: string
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*/
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const response = await fetch(
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`${process.env.EXPO_PUBLIC_BACKEND_BASE_URL}/api/v1/weight-records`,
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{
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method: 'POST',
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify(recordData),
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}
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);
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const data = await response.json();
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if (data.success) {
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Alert.alert('成功', '记录已保存', [
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{ text: '确定', onPress: () => resetModal() },
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]);
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fetchWeightRecords();
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} else {
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Alert.alert('失败', data.error || '保存失败，请重试');
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}
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} catch (error) {
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console.error('Save error:', error);
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Alert.alert('错误', '保存失败，请检查网络连接');
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} finally {
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setSaving(false);
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}
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};
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const resetModal = () => {
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setModalVisible(false);
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setNewWeight('');
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setNewNote('');
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};
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// 删除记录
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const deleteRecord = async (id: string) => {
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Alert.alert('确认删除', '确定要删除这条记录吗？', [
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{ text: '取消', style: 'cancel' },
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{
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text: '删除',
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style: 'destructive',
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onPress: async () => {
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try {
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/**
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* 服务端文件：server/src/routes/weight-records.ts
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* 接口：DELETE /api/v1/weight-records/:id
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* Path 参数：id: string
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*/
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const response = await fetch(
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`${process.env.EXPO_PUBLIC_BACKEND_BASE_URL}/api/v1/weight-records/${id}`,
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{
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method: 'DELETE',
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}
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);
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const data = await response.json();
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if (data.success) {
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fetchWeightRecords();
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}
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} catch (error) {
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console.error('Delete error:', error);
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}
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},
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},
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]);
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};
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return (
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<Screen backgroundColor={theme.backgroundRoot} statusBarStyle={isDark ? 'light' : 'dark'}>
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<ScrollView contentContainerStyle={styles.scrollContent}>
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<View style={styles.header}>
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<ThemedText variant="h2" color={theme.textPrimary}>
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数据统计
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</ThemedText>
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<TouchableOpacity
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style={styles.addButton}
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onPress={() => setModalVisible(true)}
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>
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<FontAwesome6 name="plus" size={18} color={theme.buttonPrimaryText} />
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</TouchableOpacity>
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</View>
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{/* 体重趋势 */}
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<ThemedView level="root" style={styles.chartSection}>
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<View style={styles.sectionHeader}>
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<ThemedText variant="h4" color={theme.textPrimary}>
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体重记录
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</ThemedText>
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{weightRecords.length > 0 && (
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<ThemedText variant="small" color={theme.primary}>
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{weightRecords.length} 条记录
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</ThemedText>
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)}
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</View>
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{weightRecords.length === 0 ? (
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<ThemedText variant="small" color={theme.textMuted} style={styles.emptyText}>
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暂无记录，点击右上角添加
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</ThemedText>
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) : (
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<View style={styles.recordsList}>
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{weightRecords.map((record, index) => (
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<View key={record.id} style={styles.recordItem}>
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<View style={styles.recordInfo}>
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<View style={styles.recordWeight}>
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<ThemedText variant="h3" color={theme.primary}>
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{record.weight}
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</ThemedText>
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<ThemedText variant="small" color={theme.textMuted}>
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kg
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</ThemedText>
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</View>
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<View>
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<ThemedText variant="small" color={theme.textSecondary}>
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{new Date(record.recordedAt).toLocaleDateString('zh-CN', {
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month: 'short',
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day: 'numeric',
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})}
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</ThemedText>
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{record.note && (
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<ThemedText variant="caption" color={theme.textMuted}>
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{record.note}
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</ThemedText>
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)}
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</View>
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</View>
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{index > 0 && (
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<View style={styles.changeBadge}>
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<FontAwesome6
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name={record.weight < weightRecords[index - 1].weight ? 'arrow-down' : 'arrow-up'}
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size={12}
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color={record.weight < weightRecords[index - 1].weight ? '#10B981' : '#EF4444'}
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/>
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<ThemedText
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variant="caption"
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color={record.weight < weightRecords[index - 1].weight ? '#10B981' : '#EF4444'}
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>
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{Math.abs(record.weight - weightRecords[index - 1].weight).toFixed(1)}
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</ThemedText>
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</View>
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)}
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<TouchableOpacity onPress={() => deleteRecord(record.id)}>
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<FontAwesome6 name="trash" size={16} color={theme.textMuted} />
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</TouchableOpacity>
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</View>
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))}
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</View>
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)}
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</ThemedView>
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{/* 统计信息 */}
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{weightRecords.length >= 2 && (
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<ThemedView level="root" style={styles.statsSection}>
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<ThemedText variant="h4" color={theme.textPrimary} style={styles.sectionTitle}>
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统计信息
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</ThemedText>
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<View style={styles.statRow}>
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<View style={styles.statItem}>
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<ThemedText variant="small" color={theme.textMuted}>
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初始体重
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</ThemedText>
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<ThemedText variant="h4" color={theme.textPrimary}>
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{weightRecords[weightRecords.length - 1].weight} kg
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</ThemedText>
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</View>
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<View style={[styles.statItem, styles.statBorder]}>
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<ThemedText variant="small" color={theme.textMuted}>
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当前体重
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</ThemedText>
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<ThemedText variant="h4" color={theme.primary}>
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{weightRecords[0].weight} kg
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</ThemedText>
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</View>
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<View style={styles.statItem}>
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<ThemedText variant="small" color={theme.textMuted}>
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累计变化
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</ThemedText>
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<ThemedText
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variant="h4"
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color={
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weightRecords[0].weight < weightRecords[weightRecords.length - 1].weight
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? '#10B981'
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: '#EF4444'
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}
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>
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{weightRecords[0].weight < weightRecords[weightRecords.length - 1].weight ? '-' : '+'}
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{Math.abs(
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weightRecords[0].weight - weightRecords[weightRecords.length - 1].weight
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).toFixed(1)}{' '}
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kg
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</ThemedText>
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</View>
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</View>
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</ThemedView>
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)}
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</ScrollView>
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{/* 添加记录 Modal */}
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<Modal visible={modalVisible} transparent animationType="fade">
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<View style={styles.modalContainer}>
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<ThemedView level="default" style={styles.modalContent}>
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<View style={styles.modalHeader}>
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<ThemedText variant="h4" color={theme.textPrimary}>
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添加体重记录
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</ThemedText>
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<TouchableOpacity onPress={resetModal}>
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<FontAwesome6 name="xmark" size={24} color={theme.textSecondary} />
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</TouchableOpacity>
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</View>
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<View style={styles.modalBody}>
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<View style={styles.inputGroup}>
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<ThemedText variant="small" color={theme.textSecondary} style={styles.label}>
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体重 (kg)
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</ThemedText>
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<TextInput
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style={styles.input}
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placeholder="输入体重"
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placeholderTextColor={theme.textMuted}
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value={newWeight}
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onChangeText={setNewWeight}
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keyboardType="decimal-pad"
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/>
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</View>
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<View style={styles.inputGroup}>
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<ThemedText variant="small" color={theme.textSecondary} style={styles.label}>
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备注 (可选)
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</ThemedText>
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<TextInput
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style={[styles.input, styles.textArea]}
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placeholder="添加备注"
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placeholderTextColor={theme.textMuted}
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value={newNote}
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onChangeText={setNewNote}
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multiline
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numberOfLines={3}
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/>
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</View>
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</View>
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<View style={styles.modalFooter}>
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<TouchableOpacity
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style={[styles.modalButton, styles.cancelButton]}
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onPress={resetModal}
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>
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<ThemedText variant="smallMedium" color={theme.textSecondary}>
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取消
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</ThemedText>
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</TouchableOpacity>
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<TouchableOpacity
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style={[styles.modalButton, styles.confirmButton]}
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onPress={addWeightRecord}
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>
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<ThemedText variant="smallMedium" color={theme.buttonPrimaryText}>
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{saving ? '保存中...' : '保存'}
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</ThemedText>
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</TouchableOpacity>
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</View>
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</ThemedView>
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</View>
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</Modal>
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</Screen>
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);
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}
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