mirror of
https://github.com/caty21/forex-dashboard.git
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Capucine Gest
372 lines
19 KiB
TypeScript
372 lines
19 KiB
TypeScript
"use client";
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import { useState, useMemo } from "react";
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import {
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ExternalLink, RefreshCw, TrendingUp, TrendingDown, Minus,
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Loader2, Radio, AlertTriangle, Landmark, Globe, BarChart2, Zap,
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} from "lucide-react";
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import type { NewsItem } from "@/app/api/news/route";
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import type { Currency } from "@/lib/types";
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// ── Constantes ────────────────────────────────────────────────────────────────
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const CCY_FLAGS: Record<Currency, string> = {
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USD: "🇺🇸", EUR: "🇪🇺", GBP: "🇬🇧", JPY: "🇯🇵",
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CHF: "🇨🇭", CAD: "🇨🇦", AUD: "🇦🇺", NZD: "🇳🇿",
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};
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const CCY_LIST: Currency[] = ["USD", "EUR", "GBP", "JPY", "CHF", "CAD", "AUD", "NZD"];
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// Catégories prioritaires avec icône et couleur
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const CATEGORY_META: Record<string, { icon: React.ReactNode; color: string; label: string }> = {
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"Discours BC": { icon: <Landmark size={11} />, color: "bg-blue-500/20 text-blue-400 border-blue-500/30", label: "Discours BC" },
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"Chef d'État": { icon: <Globe size={11} />, color: "bg-violet-500/20 text-violet-400 border-violet-500/30", label: "Chef d'État" },
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"Décision Taux": { icon: <Radio size={11} />, color: "bg-amber-500/20 text-amber-400 border-amber-500/30", label: "Décision Taux" },
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"Probabilités Taux": { icon: <BarChart2 size={11} />, color: "bg-sky-500/20 text-sky-400 border-sky-500/30", label: "OIS / Proba Taux" },
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"Données Clés": { icon: <BarChart2 size={11} />, color: "bg-slate-400/20 text-slate-300 border-slate-500/30", label: "Données Clés" },
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"Emploi": { icon: <BarChart2 size={11} />, color: "bg-slate-400/20 text-slate-300 border-slate-500/30", label: "Emploi" },
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"Inflation": { icon: <Zap size={11} />, color: "bg-orange-500/20 text-orange-400 border-orange-500/30", label: "Inflation" },
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"Crise": { icon: <AlertTriangle size={11} />, color: "bg-red-600/20 text-red-400 border-red-500/30", label: "Crise" },
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"Guerre": { icon: <AlertTriangle size={11} />, color: "bg-red-700/20 text-red-400 border-red-600/30", label: "Guerre" },
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"Géopolitique": { icon: <Globe size={11} />, color: "bg-purple-500/20 text-purple-400 border-purple-500/30", label: "Géopolitique" },
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"Risk-Off": { icon: <TrendingDown size={11} />, color: "bg-red-500/20 text-red-400 border-red-500/30", label: "Risk-Off" },
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"Risk-On": { icon: <TrendingUp size={11} />, color: "bg-emerald-500/20 text-emerald-400 border-emerald-500/30", label: "Risk-On" },
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"Énergie": { icon: <Zap size={11} />, color: "bg-yellow-500/20 text-yellow-400 border-yellow-500/30", label: "Énergie" },
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"Banque Centrale": { icon: <Landmark size={11} />, color: "bg-blue-500/20 text-blue-400 border-blue-500/30", label: "Banque Centrale" },
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"Commodités": { icon: <BarChart2 size={11} />, color: "bg-orange-500/20 text-orange-400 border-orange-500/30", label: "Commodités" },
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"Chine": { icon: <Globe size={11} />, color: "bg-red-600/20 text-red-400 border-red-600/30", label: "Chine" },
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};
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// Ordre d'affichage des filtres catégorie (par priorité signal)
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const PRIORITY_CATS = [
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"Discours BC", "Décision Taux", "Probabilités Taux",
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"Chef d'État", "Données Clés", "Emploi", "Inflation",
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"Crise", "Guerre", "Géopolitique", "Risk-Off", "Risk-On",
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"Énergie", "Commodités", "Chine",
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];
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const SOURCE_COLORS: Record<string, string> = {
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"InvestingLive": "bg-amber-500/20 text-amber-400",
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"Reuters": "bg-orange-500/20 text-orange-400",
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"Bloomberg Economics": "bg-sky-500/20 text-sky-400",
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"Bloomberg CB": "bg-sky-500/20 text-sky-400",
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"Bloomberg FX": "bg-sky-500/20 text-sky-400",
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};
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function formatRelativeTime(isoDate: string): string {
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const diff = Date.now() - new Date(isoDate).getTime();
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const mins = Math.floor(diff / 60000);
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if (mins < 1) return "à l'instant";
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if (mins < 60) return `il y a ${mins}min`;
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const hrs = Math.floor(mins / 60);
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if (hrs < 24) return `il y a ${hrs}h`;
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return `il y a ${Math.floor(hrs / 24)}j`;
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}
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// ── Composant principal ───────────────────────────────────────────────────────
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interface Props {
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items: NewsItem[];
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loading: boolean;
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onRefresh: () => void;
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}
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export default function NewsTab({ items, loading, onRefresh }: Props) {
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const [filterCcy, setFilterCcy] = useState<Currency | "ALL">("ALL");
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const [filterCat, setFilterCat] = useState<string | "ALL">("ALL");
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const [filterDir, setFilterDir] = useState<"all" | "bullish" | "bearish">("all");
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const filtered = useMemo(() => items.filter(item => {
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if (filterCcy !== "ALL" && !item.impacts.some(i => i.ccy === filterCcy)) return false;
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if (filterCat !== "ALL" && !item.categories.includes(filterCat)) return false;
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if (filterDir !== "all") {
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const hasDir = filterCcy === "ALL"
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? item.impacts.some(i => i.direction === filterDir)
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: item.impacts.some(i => i.ccy === filterCcy && i.direction === filterDir);
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if (!hasDir) return false;
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}
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return true;
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}), [items, filterCcy, filterCat, filterDir]);
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// Catégories présentes dans le feed actuel
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const activeCats = useMemo(() => {
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const set = new Set<string>();
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for (const item of items) item.categories.forEach(c => set.add(c));
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return PRIORITY_CATS.filter(c => set.has(c));
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}, [items]);
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// Comptage par devise
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const ccyCount = useMemo(() => {
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const counts: Partial<Record<Currency, { bull: number; bear: number; total: number }>> = {};
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for (const item of items) {
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for (const imp of item.impacts) {
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if (!counts[imp.ccy]) counts[imp.ccy] = { bull: 0, bear: 0, total: 0 };
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counts[imp.ccy]!.total++;
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if (imp.direction === "bullish") counts[imp.ccy]!.bull++;
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if (imp.direction === "bearish") counts[imp.ccy]!.bear++;
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}
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}
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return counts;
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}, [items]);
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// Résumé par devise (pour headline)
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const ccySummary = useMemo(() => {
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const summary: Partial<Record<Currency, "bullish" | "bearish" | "mixed" | "neutral">> = {};
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for (const [ccy, cnt] of Object.entries(ccyCount) as [Currency, { bull: number; bear: number }][]) {
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if (cnt.bull > cnt.bear * 1.5) summary[ccy] = "bullish";
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else if (cnt.bear > cnt.bull * 1.5) summary[ccy] = "bearish";
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else if (cnt.bull > 0 && cnt.bear > 0) summary[ccy] = "mixed";
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else summary[ccy] = "neutral";
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}
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return summary;
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}, [ccyCount]);
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return (
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<div className="space-y-3">
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{/* ── Headline résumé par devise ──────────────────────────────────────── */}
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{!loading && items.length > 0 && (
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<div className="bg-slate-900 border border-slate-800 rounded-xl p-3">
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<div className="flex items-center justify-between mb-2">
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<span className="text-[10px] text-slate-500 uppercase tracking-widest font-semibold">
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Biais actualités par devise
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</span>
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<button onClick={onRefresh} disabled={loading}
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className="flex items-center gap-1 text-[9px] text-slate-600 hover:text-slate-400 disabled:opacity-50">
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<RefreshCw size={9} className={loading ? "animate-spin" : ""} />
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Actualiser
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</button>
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</div>
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<div className="grid grid-cols-4 sm:grid-cols-8 gap-2">
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{CCY_LIST.map(ccy => {
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const cnt = ccyCount[ccy];
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const summary = ccySummary[ccy] ?? "neutral";
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const bgCls = summary === "bullish" ? "bg-emerald-500/10 border-emerald-500/20"
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: summary === "bearish" ? "bg-red-500/10 border-red-500/20"
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: summary === "mixed" ? "bg-amber-500/10 border-amber-500/20"
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: "bg-slate-800/40 border-slate-700/30";
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const arrow = summary === "bullish" ? "↑" : summary === "bearish" ? "↓"
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: summary === "mixed" ? "↕" : "→";
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const arrowCls = summary === "bullish" ? "text-emerald-400" : summary === "bearish" ? "text-red-400"
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: summary === "mixed" ? "text-amber-400" : "text-slate-600";
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return (
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<button key={ccy} onClick={() => setFilterCcy(filterCcy === ccy ? "ALL" : ccy)}
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className={`flex flex-col items-center gap-0.5 p-2 rounded-lg border transition-all ${bgCls} ${filterCcy === ccy ? "ring-1 ring-amber-500/50" : ""}`}>
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<span className="text-base">{CCY_FLAGS[ccy]}</span>
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<span className="text-[10px] font-bold text-slate-300">{ccy}</span>
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<span className={`text-[11px] font-bold ${arrowCls}`}>{arrow}</span>
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{cnt && (
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<span className="text-[8px] text-slate-600">{cnt.bull}↑ {cnt.bear}↓</span>
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)}
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</button>
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);
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})}
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</div>
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</div>
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)}
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{/* ── Filtres ─────────────────────────────────────────────────────────── */}
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<div className="bg-slate-900 border border-slate-800 rounded-xl p-3 space-y-2">
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{/* Direction */}
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<div className="flex items-center gap-2">
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<span className="text-[9px] text-slate-600 uppercase tracking-wider w-16 shrink-0">Direction</span>
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<div className="flex gap-1.5">
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{(["all", "bullish", "bearish"] as const).map(d => (
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<button key={d} onClick={() => setFilterDir(d)}
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className={`text-[10px] px-2.5 py-1 rounded-full font-semibold transition-colors border ${
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filterDir === d
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? d === "bullish" ? "bg-emerald-500/20 text-emerald-400 border-emerald-500/30"
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: d === "bearish" ? "bg-red-500/20 text-red-400 border-red-500/30"
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: "bg-slate-700 text-slate-300 border-slate-600"
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: "text-slate-500 border-slate-700/40 hover:text-slate-300"
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}`}>
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{d === "all" ? "Tous" : d === "bullish" ? "↑ Haussier" : "↓ Baissier"}
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</button>
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))}
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</div>
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</div>
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{/* Catégories */}
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{activeCats.length > 0 && (
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<div className="flex items-start gap-2">
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<span className="text-[9px] text-slate-600 uppercase tracking-wider w-16 shrink-0 pt-1">Catégorie</span>
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<div className="flex gap-1.5 flex-wrap">
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<button onClick={() => setFilterCat("ALL")}
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className={`text-[10px] px-2.5 py-1 rounded-full font-semibold border transition-colors ${
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filterCat === "ALL" ? "bg-slate-700 text-slate-300 border-slate-600" : "text-slate-600 border-slate-700/40 hover:text-slate-400"
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}`}>
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Toutes
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</button>
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{activeCats.map(cat => {
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const meta = CATEGORY_META[cat];
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const isActive = filterCat === cat;
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return (
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<button key={cat} onClick={() => setFilterCat(filterCat === cat ? "ALL" : cat)}
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className={`flex items-center gap-1 text-[10px] px-2.5 py-1 rounded-full font-semibold border transition-colors ${
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isActive ? (meta?.color ?? "bg-slate-700 text-slate-300 border-slate-600")
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: "text-slate-600 border-slate-700/40 hover:text-slate-400"
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}`}>
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{meta?.icon}
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{meta?.label ?? cat}
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</button>
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);
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})}
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</div>
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</div>
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)}
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</div>
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{/* ── Compteur résultats ──────────────────────────────────────────────── */}
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<div className="flex items-center justify-between px-1">
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<span className="text-[11px] text-slate-600">
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{loading ? "Chargement…" : `${filtered.length} article${filtered.length > 1 ? "s" : ""}`}
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{filterCcy !== "ALL" && ` · ${CCY_FLAGS[filterCcy]} ${filterCcy}`}
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{filterCat !== "ALL" && ` · ${filterCat}`}
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</span>
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{(filterCcy !== "ALL" || filterCat !== "ALL" || filterDir !== "all") && (
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<button onClick={() => { setFilterCcy("ALL"); setFilterCat("ALL"); setFilterDir("all"); }}
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className="text-[10px] text-slate-600 hover:text-slate-400">
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Effacer filtres ×
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</button>
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)}
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</div>
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{/* ── Liste ───────────────────────────────────────────────────────────── */}
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{loading && items.length === 0 ? (
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<div className="flex flex-col items-center justify-center py-16 text-slate-600 gap-3">
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<Loader2 size={24} className="animate-spin" />
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<span className="text-sm">Chargement des actualités…</span>
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<span className="text-[11px] text-slate-700">InvestingLive · Reuters · Bloomberg</span>
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</div>
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) : filtered.length === 0 ? (
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<div className="text-center py-12 text-slate-600 text-sm">
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Aucune actualité pour ce filtre.
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</div>
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) : (
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<div className="space-y-2">
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{filtered.map(item => (
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<NewsCard
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key={item.id}
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item={item}
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activeCcy={filterCcy === "ALL" ? null : filterCcy}
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/>
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))}
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</div>
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)}
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</div>
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);
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}
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// ── NewsCard ──────────────────────────────────────────────────────────────────
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function NewsCard({ item, activeCcy }: { item: NewsItem; activeCcy: Currency | null }) {
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const [expanded, setExpanded] = useState(false);
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const visibleImpacts = activeCcy
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? item.impacts.filter(i => i.ccy === activeCcy)
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: item.impacts;
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const overallDir =
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visibleImpacts.some(i => i.direction === "bullish") && visibleImpacts.some(i => i.direction === "bearish") ? "mixed"
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: visibleImpacts.some(i => i.direction === "bullish") ? "bullish"
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: visibleImpacts.some(i => i.direction === "bearish") ? "bearish"
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: "neutral";
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// Détecter les catégories prioritaires
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const isPriority = item.categories.some(c =>
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["Discours BC", "Décision Taux", "Crise", "Guerre", "Chef d'État"].includes(c)
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);
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const borderCls =
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overallDir === "bullish" ? "border-emerald-500/25" :
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overallDir === "bearish" ? "border-red-500/25" :
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overallDir === "mixed" ? "border-amber-500/20" :
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"border-slate-700/30";
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const bgCls =
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overallDir === "bullish" ? "bg-emerald-500/5" :
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overallDir === "bearish" ? "bg-red-500/5" :
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"bg-slate-800/30";
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// Catégorie la plus prioritaire
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const topCat = PRIORITY_CATS.find(p => item.categories.includes(p));
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const topMeta = topCat ? CATEGORY_META[topCat] : null;
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return (
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<div className={`rounded-xl border ${borderCls} ${bgCls} overflow-hidden ${isPriority ? "ring-1 ring-offset-0 ring-amber-500/20" : ""}`}>
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<div className="p-3">
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{/* Header */}
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<div className="flex items-center gap-2 mb-1.5 flex-wrap">
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<span className={`text-[9px] font-semibold px-2 py-0.5 rounded-full ${SOURCE_COLORS[item.source] ?? "bg-slate-700/40 text-slate-400"}`}>
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{item.source}
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</span>
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{topMeta && topCat && (
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<span className={`flex items-center gap-1 text-[9px] font-semibold px-2 py-0.5 rounded-full border ${topMeta.color}`}>
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{topMeta.icon}
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{topMeta.label}
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</span>
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)}
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{isPriority && (
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<span className="text-[9px] text-amber-500 font-bold">⚡ Prioritaire</span>
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)}
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<span className="ml-auto text-[10px] text-slate-600 shrink-0">{formatRelativeTime(item.publishedAt)}</span>
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</div>
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{/* Titre */}
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<a href={item.url} target="_blank" rel="noopener noreferrer"
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className="group flex items-start gap-1.5 mb-1.5">
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<span className="text-[12px] text-slate-200 leading-snug font-medium group-hover:text-white transition-colors">
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{item.title}
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</span>
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<ExternalLink size={10} className="text-slate-600 group-hover:text-slate-400 shrink-0 mt-0.5" />
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</a>
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{/* Résumé */}
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{item.summary && (
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<p className="text-[11px] text-slate-500 mb-1.5 leading-relaxed line-clamp-2">
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{item.summary}
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</p>
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)}
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{/* Impact badges + bouton détail */}
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{visibleImpacts.length > 0 && (
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<div className="flex flex-wrap items-center gap-1.5">
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{visibleImpacts.map(imp => (
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<div key={imp.ccy} title={imp.reason}
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className={`flex items-center gap-1 text-[10px] px-2 py-0.5 rounded-full font-semibold ${
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imp.direction === "bullish" ? "bg-emerald-500/15 text-emerald-400" :
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imp.direction === "bearish" ? "bg-red-500/15 text-red-400" :
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"bg-slate-700/40 text-slate-400"
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}`}>
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{CCY_FLAGS[imp.ccy]} {imp.ccy}
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{imp.direction === "bullish" ? <TrendingUp size={9} /> :
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imp.direction === "bearish" ? <TrendingDown size={9} /> :
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<Minus size={9} />}
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</div>
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))}
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<button onClick={() => setExpanded(e => !e)}
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className="text-[9px] text-slate-600 hover:text-slate-400 px-1.5 py-0.5 rounded-full border border-slate-700/30 ml-auto">
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{expanded ? "▲" : "▼ Analyse"}
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</button>
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</div>
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)}
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{/* Détail des raisons */}
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{expanded && visibleImpacts.length > 0 && (
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<div className="mt-2 space-y-1.5 border-t border-slate-700/30 pt-2">
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{visibleImpacts.map(imp => (
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<div key={imp.ccy} className="flex items-start gap-2 text-[10px]">
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<span className={`shrink-0 font-bold whitespace-nowrap ${
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imp.direction === "bullish" ? "text-emerald-400" :
|
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imp.direction === "bearish" ? "text-red-400" : "text-slate-500"
|
||
}`}>
|
||
{CCY_FLAGS[imp.ccy]} {imp.ccy} {imp.direction === "bullish" ? "↑" : imp.direction === "bearish" ? "↓" : "→"}
|
||
</span>
|
||
<span className="text-slate-500 leading-relaxed">{imp.reason}</span>
|
||
</div>
|
||
))}
|
||
</div>
|
||
)}
|
||
</div>
|
||
</div>
|
||
);
|
||
}
|