70 lines
2.6 KiB
TypeScript
70 lines
2.6 KiB
TypeScript
/** 时间范围 */
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export type TimeRange = '7d' | '30d' | '3m'
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/** 单条测量记录 */
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export interface RecordItem {
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id: string
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/** 格式 YYYY.MM.DD HH:mm */
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time: string
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weight: number
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bmi: number
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/** 体脂率(%) */
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bodyFat: number
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}
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/** 统计指标 */
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export interface StatsData {
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maxWeight: number
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minWeight: number
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avgWeight: number
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/** 体重变化(kg，正=增重，负=减轻） */
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weightDiff: number
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}
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/** 全量 mock 记录（最近 3 个月数据，按时间倒序） */
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const ALL_RECORDS: RecordItem[] = [
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{ id: 'r-001', time: '2026.05.12 08:12', weight: 68.2, bmi: 22.0, bodyFat: 18.5 },
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{ id: 'r-002', time: '2026.05.11 21:30', weight: 68.5, bmi: 22.1, bodyFat: 18.7 },
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{ id: 'r-003', time: '2026.05.10 08:05', weight: 68.8, bmi: 22.3, bodyFat: 18.9 },
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{ id: 'r-004', time: '2026.05.09 07:58', weight: 69.0, bmi: 22.4, bodyFat: 19.0 },
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{ id: 'r-005', time: '2026.05.08 22:10', weight: 69.3, bmi: 22.5, bodyFat: 19.2 },
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{ id: 'r-006', time: '2026.05.07 08:20', weight: 69.5, bmi: 22.6, bodyFat: 19.3 },
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{ id: 'r-007', time: '2026.05.06 08:00', weight: 70.0, bmi: 22.7, bodyFat: 19.5 },
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{ id: 'r-008', time: '2026.04.30 08:10', weight: 70.3, bmi: 22.8, bodyFat: 19.7 },
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{ id: 'r-009', time: '2026.04.20 07:45', weight: 71.0, bmi: 23.0, bodyFat: 20.0 },
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{ id: 'r-010', time: '2026.04.10 08:30', weight: 71.8, bmi: 23.2, bodyFat: 20.3 },
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{ id: 'r-011', time: '2026.03.28 08:15', weight: 72.5, bmi: 23.5, bodyFat: 20.7 },
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{ id: 'r-012', time: '2026.03.15 09:00', weight: 73.2, bmi: 23.7, bodyFat: 21.0 },
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{ id: 'r-013', time: '2026.03.01 08:05', weight: 73.8, bmi: 23.9, bodyFat: 21.3 },
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]
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/** 各时间范围截取数量 */
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const RANGE_COUNTS: Record<TimeRange, number> = {
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'7d': 7,
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'30d': 10,
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'3m': 13,
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}
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/**
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* 按时间范围获取 mock 记录列表
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*/
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export function getMockRecords(range: TimeRange): RecordItem[] {
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return ALL_RECORDS.slice(0, RANGE_COUNTS[range])
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}
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/**
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* 根据记录列表计算统计指标
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*/
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export function calcStats(records: RecordItem[]): StatsData {
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if (!records.length) {
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return { maxWeight: 0, minWeight: 0, avgWeight: 0, weightDiff: 0 }
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}
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const weights = records.map(r => r.weight)
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const maxWeight = Math.max(...weights)
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const minWeight = Math.min(...weights)
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const avgWeight = parseFloat((weights.reduce((a, b) => a + b, 0) / weights.length).toFixed(1))
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// 最新 - 最旧
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const weightDiff = parseFloat((weights[0] - weights[weights.length - 1]).toFixed(1))
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return { maxWeight, minWeight, avgWeight, weightDiff }
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}
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