auto: sync 2026-06-01 23:46

2026-08-19 15:38:06 +00:00 · 2026-06-01 23:46:41 +02:00
parent 8c479d377e
commit 5c6de88604
5 changed files with 499 additions and 5 deletions
@@ -0,0 +1,100 @@
+// lib/tecpi.ts
+// Scrape tradingeconomics.com/country-list/core-inflation-rate pour les 8 devises.
+// Une seule requête HTTP (cache 6h via Next.js) — remplace les séries FRED mensuelles
+// qui avaient de 1 mois à 1 an de retard (GBP GBRCPIALLMINMEI, JPY PCPI total, etc.)
+
+import type { Currency } from "./types";
+
+const TE_COUNTRY_CPI: Record<Currency, string> = {
+  USD: "United States",
+  EUR: "Euro Area",
+  GBP: "United Kingdom",
+  JPY: "Japan",
+  CHF: "Switzerland",
+  CAD: "Canada",
+  AUD: "Australia",
+  NZD: "New Zealand",
+};
+
+export interface CoreCPIEntry {
+  value:    number;   // YoY %
+  prev:     number;   // valeur précédente
+  refMonth: string;   // "2026-04-01"
+}
+
+export type CoreCPIMap = Partial<Record<Currency, CoreCPIEntry>>;
+
+// Convertit "Apr/26" → "2026-04-01"
+function parseRefDate(raw: string): string {
+  const MONTHS: Record<string, string> = {
+    Jan: "01", Feb: "02", Mar: "03", Apr: "04", May: "05", Jun: "06",
+    Jul: "07", Aug: "08", Sep: "09", Oct: "10", Nov: "11", Dec: "12",
+  };
+  const m = raw.match(/([A-Za-z]+)\/(\d{2})/);
+  if (!m) return "";
+  const month = MONTHS[m[1]] ?? "01";
+  const year  = `20${m[2]}`;
+  return `${year}-${month}-01`;
+}
+
+export async function fetchTECoreInflation(): Promise<CoreCPIMap> {
+  try {
+    const res = await fetch(
+      "https://tradingeconomics.com/country-list/core-inflation-rate?continent=world",
+      {
+        next: { revalidate: 21600 }, // 6h — données mensuelles, inutile de re-fetcher trop souvent
+        headers: {
+          "User-Agent":      "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 Chrome/124.0.0.0 Safari/537.36",
+          "Accept":          "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+          "Accept-Language": "en-US,en;q=0.9",
+        },
+      }
+    );
+    if (!res.ok) {
+      console.warn("[tecpi] HTTP", res.status);
+      return {};
+    }
+    const html = await res.text();
+    return parseCoreInflationHTML(html);
+  } catch (err) {
+    console.error("[tecpi] error:", err);
+    return {};
+  }
+}
+
+function parseCoreInflationHTML(html: string): CoreCPIMap {
+  const result: CoreCPIMap = {};
+  const seen = new Set<Currency>();
+
+  const rowPattern = /<tr[^>]*>([\s\S]*?)<\/tr>/g;
+  let m: RegExpExecArray | null;
+
+  while ((m = rowPattern.exec(html)) !== null) {
+    const text = m[1].replace(/<[^>]+>/g, " ").replace(/\s+/g, " ").trim();
+
+    for (const [ccy, country] of Object.entries(TE_COUNTRY_CPI) as [Currency, string][]) {
+      if (seen.has(ccy)) continue;
+      if (!text.startsWith(country)) continue;
+
+      // Format : "Country  Last  Previous  Mon/YY  %"
+      // Last / Previous peuvent être négatifs (ex : Morocco -0.3)
+      const nums = text.match(/-?\d+\.?\d*/g);
+      // Chercher la date de référence (format Mon/YY)
+      const dateMatch = text.match(/([A-Za-z]{3}\/\d{2})/);
+
+      if (nums && nums.length >= 2) {
+        result[ccy] = {
+          value:    parseFloat(nums[0]),
+          prev:     parseFloat(nums[1]),
+          refMonth: dateMatch ? parseRefDate(dateMatch[1]) : "",
+        };
+        seen.add(ccy);
+      }
+      break;
+    }
+
+    if (seen.size === 8) break;
+  }
+
+  return result;
+}