82 lines
3.1 KiB
JavaScript
82 lines
3.1 KiB
JavaScript
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// ═══════════════════════════════════════════════════════════
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// 本機資料庫（SQLite，使用 Node 內建的 node:sqlite，免安裝套件）
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// 存三種東西：
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// 1. cache — 整包 /api/macro 結果，重啟伺服器可即時載入
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// 2. series — 每個指標的完整歷史序列，供「走勢大圖」使用
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// 3. score_history — 每天記一筆健康分數，累積成「分數走勢」
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// 資料庫檔：data.db（已在 .gitignore 忽略）
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// ═══════════════════════════════════════════════════════════
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import { DatabaseSync } from 'node:sqlite';
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import path from 'node:path';
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import { fileURLToPath } from 'node:url';
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const __dirname = path.dirname(fileURLToPath(import.meta.url));
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const DB_PATH = path.join(__dirname, '..', 'data.db');
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const db = new DatabaseSync(DB_PATH);
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db.exec(`
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CREATE TABLE IF NOT EXISTS cache (
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key TEXT PRIMARY KEY,
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payload TEXT NOT NULL,
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updated_at INTEGER NOT NULL
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);
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CREATE TABLE IF NOT EXISTS series (
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series_key TEXT NOT NULL,
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date TEXT NOT NULL,
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val REAL NOT NULL,
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PRIMARY KEY (series_key, date)
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);
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CREATE TABLE IF NOT EXISTS score_history (
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date TEXT PRIMARY KEY,
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score INTEGER NOT NULL,
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regime TEXT
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);
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`);
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// ─── 整包結果的持久化快取 ───
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export function savePayload(payload) {
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db.prepare('INSERT OR REPLACE INTO cache (key, payload, updated_at) VALUES (?, ?, ?)')
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.run('macro', JSON.stringify(payload), Date.now());
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}
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export function loadPayload() {
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const row = db.prepare('SELECT payload, updated_at FROM cache WHERE key = ?').get('macro');
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if (!row) return null;
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try {
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return { payload: JSON.parse(row.payload), updatedAt: row.updated_at };
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} catch {
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return null;
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}
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}
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// ─── 指標歷史序列 ───
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const insertPoint = db.prepare('INSERT OR REPLACE INTO series (series_key, date, val) VALUES (?, ?, ?)');
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export function saveSeries(key, points) {
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if (!points || points.length === 0) return;
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db.exec('BEGIN');
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try {
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for (const p of points) insertPoint.run(key, p.date, p.val);
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db.exec('COMMIT');
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} catch (e) {
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db.exec('ROLLBACK');
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throw e;
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}
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}
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export function getSeries(key, sinceISO) {
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if (sinceISO) {
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return db.prepare('SELECT date, val FROM series WHERE series_key = ? AND date >= ? ORDER BY date ASC')
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.all(key, sinceISO);
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}
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return db.prepare('SELECT date, val FROM series WHERE series_key = ? ORDER BY date ASC').all(key);
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}
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// ─── 每日健康分數快照（一天一筆，最新覆蓋）───
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export function saveScoreSnapshot(score, regimeLabel) {
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const today = new Date().toISOString().slice(0, 10);
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db.prepare('INSERT OR REPLACE INTO score_history (date, score, regime) VALUES (?, ?, ?)')
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.run(today, score, regimeLabel || null);
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}
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export function getScoreHistory() {
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return db.prepare('SELECT date, score, regime FROM score_history ORDER BY date ASC').all();
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}
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