mirror of
https://github.com/samsonjs/spirit-tracker.git
synced 2026-04-27 15:07:43 +00:00
549 lines
17 KiB
JavaScript
549 lines
17 KiB
JavaScript
import { esc, renderThumbHtml, dateOnly } from "./dom.js";
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import { parsePriceToNumber, keySkuForRow, displaySku } from "./sku.js";
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import { loadIndex } from "./state.js";
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import { inferGithubOwnerRepo, githubListCommits, githubFetchFileAtSha, fetchJson } from "./api.js";
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import { loadSkuRules } from "./mapping.js";
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/* ---------------- Chart lifecycle ---------------- */
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let CHART = null;
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export function destroyChart() {
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if (CHART) {
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CHART.destroy();
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CHART = null;
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}
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}
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/* ---------------- History helpers ---------------- */
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// Returns BOTH mins, so we can show a dot on removal day using removed price.
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function findMinPricesForSkuGroupInDb(obj, skuKeys, storeLabel) {
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const items = Array.isArray(obj?.items) ? obj.items : [];
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let liveMin = null;
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let removedMin = null;
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// Build quick lookup for real sku entries (cheap)
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const want = new Set();
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for (const s of skuKeys) {
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const x = String(s || "").trim();
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if (x) want.add(x);
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}
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for (const it of items) {
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if (!it) continue;
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const isRemoved = Boolean(it.removed);
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const consider = (priceVal) => {
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const p = parsePriceToNumber(priceVal);
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if (p === null) return;
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if (!isRemoved) liveMin = liveMin === null ? p : Math.min(liveMin, p);
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else removedMin = removedMin === null ? p : Math.min(removedMin, p);
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};
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const real = String(it.sku || "").trim();
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if (real && want.has(real)) {
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consider(it.price);
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continue;
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}
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// synthetic match (only relevant if a caller passes u: keys)
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if (!real) {
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for (const skuKey of skuKeys) {
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const k = String(skuKey || "");
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if (!k.startsWith("u:")) continue;
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const row = { sku: "", url: String(it.url || ""), storeLabel: storeLabel || "", store: "" };
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const kk = keySkuForRow(row);
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if (kk === k) consider(it.price);
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}
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}
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}
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return { liveMin, removedMin };
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}
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function computeSuggestedY(values) {
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const nums = values.filter((v) => Number.isFinite(v));
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if (!nums.length) return { suggestedMin: undefined, suggestedMax: undefined };
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let min = nums[0],
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max = nums[0];
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for (const n of nums) {
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if (n < min) min = n;
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if (n > max) max = n;
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}
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if (min === max) return { suggestedMin: min * 0.95, suggestedMax: max * 1.05 };
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const pad = (max - min) * 0.08;
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return { suggestedMin: Math.max(0, min - pad), suggestedMax: max + pad };
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}
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function cacheKeySeries(sku, dbFile, cacheBust) {
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return `stviz:v3:series:${cacheBust}:${sku}:${dbFile}`;
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}
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function loadSeriesCache(sku, dbFile, cacheBust) {
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try {
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const raw = localStorage.getItem(cacheKeySeries(sku, dbFile, cacheBust));
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if (!raw) return null;
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const obj = JSON.parse(raw);
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if (!obj || !Array.isArray(obj.points)) return null;
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const savedAt = Number(obj.savedAt || 0);
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if (!Number.isFinite(savedAt) || Date.now() - savedAt > 7 * 24 * 3600 * 1000) return null;
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return obj;
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} catch {
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return null;
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}
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}
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function saveSeriesCache(sku, dbFile, cacheBust, points) {
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try {
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localStorage.setItem(cacheKeySeries(sku, dbFile, cacheBust), JSON.stringify({ savedAt: Date.now(), points }));
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} catch {}
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}
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let DB_COMMITS = null;
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async function loadDbCommitsManifest() {
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if (DB_COMMITS) return DB_COMMITS;
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try {
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DB_COMMITS = await fetchJson("./data/db_commits.json");
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return DB_COMMITS;
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} catch {
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DB_COMMITS = null;
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return null;
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}
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}
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/* ---------------- Page ---------------- */
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export async function renderItem($app, skuInput) {
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destroyChart();
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const rules = await loadSkuRules();
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const sku = rules.canonicalSku(String(skuInput || ""));
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$app.innerHTML = `
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<div class="container">
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<div class="topbar">
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<button id="back" class="btn">← Back</button>
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<span class="badge mono">${esc(displaySku(sku))}</span>
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</div>
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<div class="card detailCard">
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<div class="detailHeader">
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<div id="thumbBox" class="detailThumbBox"></div>
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<div class="detailHeaderText">
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<div id="title" class="h1">Loading…</div>
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<div id="links" class="links"></div>
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<div class="small" id="status"></div>
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</div>
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</div>
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<div class="chartBox">
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<canvas id="chart"></canvas>
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</div>
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</div>
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</div>
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`;
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document.getElementById("back").addEventListener("click", () => {
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location.hash = "#/";
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});
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const $title = document.getElementById("title");
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const $links = document.getElementById("links");
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const $status = document.getElementById("status");
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const $canvas = document.getElementById("chart");
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const $thumbBox = document.getElementById("thumbBox");
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const idx = await loadIndex();
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const all = Array.isArray(idx.items) ? idx.items : [];
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// include toSku + all fromSkus mapped to it
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const skuGroup = rules.groupForCanonical(sku);
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// index.json includes removed rows too. Split live vs all.
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const allRows = all.filter((x) => skuGroup.has(String(keySkuForRow(x) || "")));
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const liveRows = allRows.filter((x) => !Boolean(x?.removed));
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if (!allRows.length) {
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$title.textContent = "Item not found";
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$status.textContent = "No matching SKU in index.";
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if ($thumbBox) $thumbBox.innerHTML = `<div class="thumbPlaceholder"></div>`;
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return;
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}
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const isRemovedEverywhere = liveRows.length === 0;
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// pick bestName by most common across LIVE rows (fallback to allRows)
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const basisForName = liveRows.length ? liveRows : allRows;
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const nameCounts = new Map();
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for (const r of basisForName) {
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const n = String(r.name || "");
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if (!n) continue;
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nameCounts.set(n, (nameCounts.get(n) || 0) + 1);
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}
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let bestName = basisForName[0].name || `(SKU ${sku})`;
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let bestCount = -1;
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for (const [n, c] of nameCounts.entries()) {
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if (c > bestCount) {
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bestName = n;
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bestCount = c;
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}
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}
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$title.textContent = bestName;
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// choose thumbnail from cheapest LIVE listing (fallback: any matching name; fallback: any)
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let bestImg = "";
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let bestPrice = null;
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const basisForThumb = liveRows.length ? liveRows : allRows;
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for (const r of basisForThumb) {
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const p = parsePriceToNumber(r.price);
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const img = String(r?.img || "").trim();
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if (p !== null && img) {
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if (bestPrice === null || p < bestPrice) {
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bestPrice = p;
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bestImg = img;
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}
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}
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}
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if (!bestImg) {
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for (const r of basisForThumb) {
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if (String(r?.name || "") === String(bestName || "") && String(r?.img || "").trim()) {
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bestImg = String(r.img).trim();
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break;
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}
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}
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}
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if (!bestImg) {
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for (const r of basisForThumb) {
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if (String(r?.img || "").trim()) {
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bestImg = String(r.img).trim();
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break;
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}
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}
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}
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$thumbBox.innerHTML = bestImg ? renderThumbHtml(bestImg, "detailThumb") : `<div class="thumbPlaceholder"></div>`;
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// Render store links:
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// - one link per store label (even if URL differs)
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// - pick most recent row for that store
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function rowMs(r) {
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const t = String(r?.ts || "");
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const ms = t ? Date.parse(t) : NaN;
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if (Number.isFinite(ms)) return ms;
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const d = String(r?.date || "");
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const ms2 = d ? Date.parse(d + "T23:59:59Z") : NaN;
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return Number.isFinite(ms2) ? ms2 : 0;
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}
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const bestByStore = new Map(); // storeLabel -> row
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for (const r of allRows) {
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const href = String(r?.url || "").trim();
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if (!href) continue;
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const store = String(r?.storeLabel || r?.store || "Store").trim() || "Store";
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const prev = bestByStore.get(store);
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if (!prev) {
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bestByStore.set(store, r);
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continue;
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}
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const a = rowMs(prev);
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const b = rowMs(r);
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if (b > a) bestByStore.set(store, r);
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else if (b === a) {
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// tie-break: prefer live over removed
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if (Boolean(prev?.removed) && !Boolean(r?.removed)) bestByStore.set(store, r);
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}
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}
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const linkRows = Array.from(bestByStore.entries())
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.map(([store, r]) => ({ store, r }))
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.sort((A, B) => {
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const ar = Boolean(A.r?.removed) ? 1 : 0;
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const br = Boolean(B.r?.removed) ? 1 : 0;
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if (ar !== br) return ar - br; // live first
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return A.store.localeCompare(B.store);
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});
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$links.innerHTML = linkRows
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.map(({ store, r }) => {
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const href = String(r.url || "").trim();
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const suffix = Boolean(r?.removed) ? " (removed)" : "";
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return `<a href="${esc(href)}" target="_blank" rel="noopener noreferrer">${esc(store + suffix)}</a>`;
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})
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.join("");
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const gh = inferGithubOwnerRepo();
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const owner = gh.owner;
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const repo = gh.repo;
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const branch = "data";
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// Group DB files by historical presence (LIVE or REMOVED rows).
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const byDbFileAll = new Map();
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for (const r of allRows) {
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if (!r.dbFile) continue;
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const k = String(r.dbFile);
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if (!byDbFileAll.has(k)) byDbFileAll.set(k, []);
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byDbFileAll.get(k).push(r);
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}
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const dbFiles = [...byDbFileAll.keys()].sort();
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$status.textContent = isRemovedEverywhere
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? `Item is removed everywhere (showing historical chart across ${dbFiles.length} store file(s))…`
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: `Loading history for ${dbFiles.length} store file(s)…`;
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const manifest = await loadDbCommitsManifest();
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const allDatesSet = new Set();
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const series = [];
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const fileJsonCache = new Map();
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const cacheBust = String(idx.generatedAt || new Date().toISOString());
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const today = dateOnly(idx.generatedAt || new Date().toISOString());
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const skuKeys = [...skuGroup];
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for (const dbFile of dbFiles) {
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const rowsAll = byDbFileAll.get(dbFile) || [];
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// Determine current LIVE rows for this dbFile:
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const rowsLive = rowsAll.filter((r) => !Boolean(r?.removed));
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const storeLabel = String(rowsAll[0]?.storeLabel || rowsAll[0]?.store || dbFile);
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const cached = loadSeriesCache(sku, dbFile, cacheBust);
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if (cached && Array.isArray(cached.points) && cached.points.length) {
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const points = new Map();
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const values = [];
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for (const p of cached.points) {
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const d = String(p.date || "");
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const v = p.price === null ? null : Number(p.price);
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if (!d) continue;
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points.set(d, Number.isFinite(v) ? v : null);
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if (Number.isFinite(v)) values.push(v);
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allDatesSet.add(d);
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}
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series.push({ label: storeLabel, points, values });
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continue;
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}
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let commits = [];
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if (manifest && manifest.files && Array.isArray(manifest.files[dbFile])) {
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commits = manifest.files[dbFile];
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} else {
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try {
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let apiCommits = await githubListCommits({ owner, repo, branch, path: dbFile });
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apiCommits = apiCommits.slice().reverse();
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commits = apiCommits
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.map((c) => {
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const sha = String(c?.sha || "");
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const dIso = c?.commit?.committer?.date || c?.commit?.author?.date || "";
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const d = dateOnly(dIso);
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return sha && d ? { sha, date: d, ts: String(dIso || "") } : null;
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})
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.filter(Boolean);
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} catch {
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commits = [];
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}
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}
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// Ensure chronological
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commits = commits
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.slice()
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.filter((c) => c && c.date && c.sha)
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.sort((a, b) => {
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const da = String(a.date || "");
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const db = String(b.date || "");
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const ta = Date.parse(String(a.ts || "")) || (da ? Date.parse(da + "T00:00:00Z") : 0) || 0;
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const tb = Date.parse(String(b.ts || "")) || (db ? Date.parse(db + "T00:00:00Z") : 0) || 0;
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return ta - tb;
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});
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// Group commits by day (keep ALL commits per day; needed for add+remove same day)
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const byDay = new Map(); // date -> commits[]
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for (const c of commits) {
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const d = String(c?.date || "");
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if (!d) continue;
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let arr = byDay.get(d);
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if (!arr) byDay.set(d, (arr = []));
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arr.push(c);
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}
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// Sort commits within each day by time
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function commitMs(c) {
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const d = String(c?.date || "");
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const t = Date.parse(String(c?.ts || ""));
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if (Number.isFinite(t)) return t;
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return d ? Date.parse(d + "T00:00:00Z") || 0 : 0;
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}
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let dayEntries = Array.from(byDay.entries())
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.map(([date, arr]) => ({ date, commits: arr.slice().sort((a, b) => commitMs(a) - commitMs(b)) }))
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.sort((a, b) => (a.date < b.date ? -1 : 1));
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const points = new Map();
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const values = [];
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const compactPoints = [];
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const MAX_POINTS = 260;
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if (dayEntries.length > MAX_POINTS) dayEntries = dayEntries.slice(dayEntries.length - MAX_POINTS);
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let removedStreak = false;
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let prevLive = null;
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async function loadAtSha(sha) {
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const ck = `${sha}|${dbFile}`;
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let obj = fileJsonCache.get(ck) || null;
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if (!obj) {
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obj = await githubFetchFileAtSha({ owner, repo, sha, path: dbFile });
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fileJsonCache.set(ck, obj);
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}
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return obj;
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}
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for (const day of dayEntries) {
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const d = String(day.date || "");
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const dayCommits = Array.isArray(day.commits) ? day.commits : [];
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if (!d || !dayCommits.length) continue;
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const last = dayCommits[dayCommits.length - 1];
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const lastSha = String(last?.sha || "");
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if (!lastSha) continue;
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let objLast;
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try {
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objLast = await loadAtSha(lastSha);
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} catch {
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continue;
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}
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const lastMin = findMinPricesForSkuGroupInDb(objLast, skuKeys, storeLabel);
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const lastLive = lastMin.liveMin;
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const lastRemoved = lastMin.removedMin;
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// end-of-day removed state: no live but removed exists
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const endIsRemoved = lastLive === null && lastRemoved !== null;
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// If end-of-day is removed, find the LAST live price earlier the same day
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let sameDayLastLive = null;
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if (endIsRemoved && dayCommits.length > 1) {
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for (let i = dayCommits.length - 2; i >= 0; i--) {
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const sha = String(dayCommits[i]?.sha || "");
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if (!sha) continue;
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try {
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const obj = await loadAtSha(sha);
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const m = findMinPricesForSkuGroupInDb(obj, skuKeys, storeLabel);
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if (m.liveMin !== null) {
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sameDayLastLive = m.liveMin;
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break;
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}
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} catch {}
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}
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}
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let v = null;
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if (lastLive !== null) {
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// live at end-of-day
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v = lastLive;
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removedStreak = false;
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prevLive = lastLive;
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} else if (endIsRemoved) {
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// first removed day => show dot (prefer removed price; else last live earlier that day; else prev live)
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if (!removedStreak) {
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v = lastRemoved !== null ? lastRemoved : sameDayLastLive !== null ? sameDayLastLive : prevLive;
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removedStreak = true;
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} else {
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v = null; // days AFTER removal: no dot
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}
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} else {
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v = null;
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}
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points.set(d, v);
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if (v !== null) values.push(v);
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allDatesSet.add(d);
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compactPoints.push({ date: d, price: v });
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}
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// Add "today" point ONLY if listing currently exists in this store/dbFile (live rows present)
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if (rowsLive.length) {
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let curMin = null;
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for (const r of rowsLive) {
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const p = parsePriceToNumber(r.price);
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if (p !== null) curMin = curMin === null ? p : Math.min(curMin, p);
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}
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if (curMin !== null) {
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points.set(today, curMin);
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values.push(curMin);
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allDatesSet.add(today);
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compactPoints.push({ date: today, price: curMin });
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}
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}
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saveSeriesCache(sku, dbFile, cacheBust, compactPoints);
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series.push({ label: storeLabel, points, values });
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}
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const labels = [...allDatesSet].sort();
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if (!labels.length) {
|
|
$status.textContent = "No historical points found.";
|
|
return;
|
|
}
|
|
|
|
const allVals = [];
|
|
for (const s of series) for (const v of s.values) allVals.push(v);
|
|
const ySug = computeSuggestedY(allVals);
|
|
|
|
const datasets = series.map((s) => ({
|
|
label: s.label,
|
|
data: labels.map((d) => (s.points.has(d) ? s.points.get(d) : null)),
|
|
spanGaps: false,
|
|
tension: 0.15,
|
|
}));
|
|
|
|
const ctx = $canvas.getContext("2d");
|
|
CHART = new Chart(ctx, {
|
|
type: "line",
|
|
data: { labels, datasets },
|
|
options: {
|
|
responsive: true,
|
|
maintainAspectRatio: false,
|
|
interaction: { mode: "nearest", intersect: false },
|
|
plugins: {
|
|
legend: { display: true },
|
|
tooltip: {
|
|
callbacks: {
|
|
label: (ctx) => {
|
|
const v = ctx.parsed?.y;
|
|
if (!Number.isFinite(v)) return `${ctx.dataset.label}: (no data)`;
|
|
return `${ctx.dataset.label}: $${v.toFixed(2)}`;
|
|
},
|
|
},
|
|
},
|
|
},
|
|
scales: {
|
|
x: { ticks: { maxRotation: 0, autoSkip: true, maxTicksLimit: 12 }, grid: { display: false } },
|
|
y: { ...ySug, ticks: { callback: (v) => `$${Number(v).toFixed(0)}` } },
|
|
},
|
|
},
|
|
});
|
|
|
|
$status.textContent = manifest
|
|
? isRemovedEverywhere
|
|
? `History loaded (removed everywhere). Source=prebuilt manifest. Points=${labels.length}.`
|
|
: `History loaded from prebuilt manifest (multi-commit/day) + current run. Points=${labels.length}.`
|
|
: isRemovedEverywhere
|
|
? `History loaded (removed everywhere). Source=GitHub API fallback. Points=${labels.length}.`
|
|
: `History loaded (GitHub API fallback; multi-commit/day) + current run. Points=${labels.length}.`;
|
|
}
|