123 lines
3.7 KiB
JavaScript
123 lines
3.7 KiB
JavaScript
/**
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* 记录每次调用基金估值接口的结果，用于分时图。
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* 规则：获取到最新日期的数据时，清掉所有老日期的数据，只保留当日分时点。
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*/
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const STORAGE_KEY = 'fundValuationTimeseries';
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function getStored() {
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if (typeof window === 'undefined' || !window.localStorage) return {};
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try {
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const raw = window.localStorage.getItem(STORAGE_KEY);
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const parsed = raw ? JSON.parse(raw) : {};
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return typeof parsed === 'object' && parsed !== null ? parsed : {};
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} catch {
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return {};
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}
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}
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function setStored(data) {
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if (typeof window === 'undefined' || !window.localStorage) return;
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try {
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window.localStorage.setItem(STORAGE_KEY, JSON.stringify(data));
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} catch (e) {
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console.warn('valuationTimeseries persist failed', e);
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}
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}
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/**
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* 从 gztime 或 Date 得到日期字符串 YYYY-MM-DD
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*/
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function toDateStr(gztimeOrNow) {
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if (typeof gztimeOrNow === 'string' && /^\d{4}-\d{2}-\d{2}/.test(gztimeOrNow)) {
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return gztimeOrNow.slice(0, 10);
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}
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try {
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const d = new Date();
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const y = d.getFullYear();
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const m = String(d.getMonth() + 1).padStart(2, '0');
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const day = String(d.getDate()).padStart(2, '0');
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return `${y}-${m}-${day}`;
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} catch {
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return null;
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}
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}
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/**
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* 记录一条估值。仅当 value 为有效数字时写入。
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* 数据清理：若当前点所属日期大于已存点的最大日期，则清空该基金下所有旧日期的数据，只保留当日分时。
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*
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* @param {string} code - 基金代码
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* @param {{ gsz?: number | null, gztime?: string | null }} payload - 估值与时间（来自接口）
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* @returns {Array<{ time: string, value: number, date: string }>} 该基金当前分时序列（按时间升序）
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*/
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export function recordValuation(code, payload) {
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const value = payload?.gsz != null ? Number(payload.gsz) : NaN;
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if (!Number.isFinite(value)) return getValuationSeries(code);
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const gztime = payload?.gztime ?? null;
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const dateStr = toDateStr(gztime);
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if (!dateStr) return getValuationSeries(code);
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const timeLabel = typeof gztime === 'string' && gztime.length > 10
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? gztime.slice(11, 16)
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: (() => {
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const d = new Date();
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return `${String(d.getHours()).padStart(2, '0')}:${String(d.getMinutes()).padStart(2, '0')}`;
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})();
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const newPoint = { time: timeLabel, value, date: dateStr };
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const all = getStored();
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const list = Array.isArray(all[code]) ? all[code] : [];
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const existingDates = list.map((p) => p.date).filter(Boolean);
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const latestStoredDate = existingDates.length ? existingDates.reduce((a, b) => (a > b ? a : b), '') : '';
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let nextList;
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if (dateStr > latestStoredDate) {
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nextList = [newPoint];
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} else if (dateStr === latestStoredDate) {
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const hasSameTime = list.some((p) => p.time === timeLabel);
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if (hasSameTime) return list;
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nextList = [...list, newPoint];
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} else {
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return list;
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}
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all[code] = nextList;
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setStored(all);
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return nextList;
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}
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/**
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* 获取某基金的分时序列（只读）
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* @param {string} code - 基金代码
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* @returns {Array<{ time: string, value: number, date: string }>}
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*/
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export function getValuationSeries(code) {
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const all = getStored();
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const list = Array.isArray(all[code]) ? all[code] : [];
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return list;
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}
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/**
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* 删除某基金的全部分时数据（如用户删除该基金时调用）
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* @param {string} code - 基金代码
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*/
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export function clearFund(code) {
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const all = getStored();
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if (!(code in all)) return;
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const next = { ...all };
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delete next[code];
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setStored(next);
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}
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/**
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* 获取全部分时数据，用于页面初始 state
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* @returns {{ [code: string]: Array<{ time: string, value: number, date: string }> }}
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*/
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export function getAllValuationSeries() {
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return getStored();
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}
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