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https://github.com/caty21/forex-dashboard.git
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auto: sync 2026-06-03 00:59
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Capucine Gest
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"use client";
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import { useState, useMemo } from "react";
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import { ExternalLink, RefreshCw, TrendingUp, TrendingDown, Minus, Loader2, Zap } 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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// ── Helpers ───────────────────────────────────────────────────────────────────
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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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const SOURCE_COLORS: Record<string, string> = {
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"InvestingLive": "bg-amber-500/20 text-amber-400 border-amber-500/30",
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"Reuters": "bg-orange-500/20 text-orange-400 border-orange-500/30",
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"Bloomberg Economics": "bg-sky-500/20 text-sky-400 border-sky-500/30",
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"Bloomberg CB": "bg-sky-500/20 text-sky-400 border-sky-500/30",
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"Bloomberg FX": "bg-sky-500/20 text-sky-400 border-sky-500/30",
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};
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const CAT_COLORS: Record<string, string> = {
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"Risk-Off": "bg-red-500/15 text-red-400",
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"Risk-On": "bg-emerald-500/15 text-emerald-400",
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"Géopolitique": "bg-purple-500/15 text-purple-400",
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"Énergie": "bg-yellow-500/15 text-yellow-400",
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"Banque Centrale": "bg-blue-500/15 text-blue-400",
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"Commodités": "bg-orange-500/15 text-orange-400",
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"Chine": "bg-red-600/15 text-red-400",
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"Données Macro": "bg-slate-500/15 text-slate-400",
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"Commerce": "bg-indigo-500/15 text-indigo-400",
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"Agriculture": "bg-green-500/15 text-green-400",
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"Or": "bg-yellow-600/15 text-yellow-400",
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"Métaux": "bg-gray-400/15 text-gray-300",
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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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const days = Math.floor(hrs / 24);
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return `il y a ${days}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 [filterDir, setFilterDir] = useState<"all" | "bullish" | "bearish">("all");
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const filtered = useMemo(() => {
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return items.filter(item => {
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if (filterCcy !== "ALL" && !item.impacts.some(i => i.ccy === filterCcy)) 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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});
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}, [items, filterCcy, filterDir]);
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// Compter les impacts par devise pour les badges de filtre
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const ccyCount = useMemo(() => {
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const counts: Partial<Record<Currency, { bull: number; bear: 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 };
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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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return (
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<div className="space-y-4">
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{/* Barre de filtres */}
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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-3">
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<span className="text-[10px] text-slate-500 uppercase tracking-widest font-semibold">
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Filtrer par devise
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</span>
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<div className="flex items-center gap-2">
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{(["all", "bullish", "bearish"] as const).map(d => (
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<button
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key={d}
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onClick={() => setFilterDir(d)}
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className={`text-[10px] px-2 py-0.5 rounded-full font-semibold transition-colors ${
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filterDir === d
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? d === "bullish" ? "bg-emerald-500/20 text-emerald-400 border border-emerald-500/30"
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: d === "bearish" ? "bg-red-500/20 text-red-400 border border-red-500/30"
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: "bg-slate-700 text-slate-300"
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: "text-slate-500 hover:text-slate-300"
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}`}
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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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<button
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onClick={onRefresh}
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disabled={loading}
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className="flex items-center gap-1 text-[10px] text-slate-500 hover:text-slate-300 disabled:opacity-50"
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>
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<RefreshCw size={10} className={loading ? "animate-spin" : ""} />
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{loading ? "..." : "Actualiser"}
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</button>
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</div>
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</div>
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<div className="flex gap-2 flex-wrap">
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<button
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onClick={() => setFilterCcy("ALL")}
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className={`text-[11px] px-3 py-1 rounded-full font-semibold transition-colors ${
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filterCcy === "ALL" ? "bg-slate-700 text-white" : "text-slate-500 hover:text-slate-300"
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}`}
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>
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Toutes ({items.length})
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</button>
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{CCY_LIST.map(ccy => {
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const cnt = ccyCount[ccy];
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if (!cnt) return null;
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const isActive = filterCcy === ccy;
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return (
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<button
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key={ccy}
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onClick={() => setFilterCcy(ccy === filterCcy ? "ALL" : ccy)}
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className={`flex items-center gap-1.5 text-[11px] px-3 py-1 rounded-full font-semibold transition-colors ${
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isActive ? "bg-amber-500/20 text-amber-400 border border-amber-500/30" : "text-slate-500 hover:text-slate-300 border border-slate-700/50"
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}`}
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>
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<span>{CCY_FLAGS[ccy]}</span>
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<span>{ccy}</span>
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<span className="flex items-center gap-0.5 text-[9px]">
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{cnt.bull > 0 && <span className="text-emerald-400">↑{cnt.bull}</span>}
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{cnt.bear > 0 && <span className="text-red-400">↓{cnt.bear}</span>}
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</span>
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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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{/* Liste de news */}
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{loading && items.length === 0 ? (
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<div className="flex items-center justify-center py-12 text-slate-600">
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<Loader2 size={20} className="animate-spin mr-2" />
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<span className="text-sm">Chargement des actualités…</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 key={item.id} item={item} activeCcy={filterCcy === "ALL" ? null : filterCcy} />
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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 = visibleImpacts.some(i => i.direction === "bullish") && visibleImpacts.some(i => i.direction === "bearish")
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? "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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const borderColor =
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overallDir === "bullish" ? "border-emerald-500/20" :
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overallDir === "bearish" ? "border-red-500/20" :
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overallDir === "mixed" ? "border-amber-500/20" :
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"border-slate-700/30";
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const bgColor =
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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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return (
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<div className={`rounded-xl border ${borderColor} ${bgColor} overflow-hidden`}>
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<div className="p-3">
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{/* Header : source + date */}
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<div className="flex items-center justify-between mb-1.5">
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<div className="flex items-center gap-2 flex-wrap">
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<span className={`text-[9px] font-semibold px-2 py-0.5 rounded-full border ${SOURCE_COLORS[item.source] ?? "bg-slate-700/40 text-slate-400 border-slate-700/30"}`}>
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{item.source}
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</span>
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{item.categories.slice(0, 2).map(cat => (
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<span key={cat} className={`text-[9px] px-1.5 py-0.5 rounded-full ${CAT_COLORS[cat] ?? "bg-slate-700/20 text-slate-500"}`}>
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{cat}
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</span>
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))}
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</div>
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<span className="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
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href={item.url}
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target="_blank"
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rel="noopener noreferrer"
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className="group flex items-start gap-1.5 hover:text-white transition-colors"
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>
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<span className="text-[12px] text-slate-200 leading-snug font-medium group-hover:text-white">
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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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{/* Summary si dispo */}
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{item.summary && (
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<p className="text-[11px] text-slate-500 mt-1 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 */}
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{visibleImpacts.length > 0 && (
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<div className="flex flex-wrap gap-1.5 mt-2">
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{visibleImpacts.map(imp => (
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<div
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key={imp.ccy}
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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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title={imp.reason}
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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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{visibleImpacts.length > 0 && (
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<button
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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"
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>
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{expanded ? "Masquer" : "Détail"}
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</button>
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)}
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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 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-1.5 text-[10px]">
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<span className={`shrink-0 font-bold ${
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imp.direction === "bullish" ? "text-emerald-400" :
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imp.direction === "bearish" ? "text-red-400" : "text-slate-500"
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}`}>
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{CCY_FLAGS[imp.ccy]} {imp.ccy} {imp.direction === "bullish" ? "↑" : imp.direction === "bearish" ? "↓" : "→"}
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</span>
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<span className="text-slate-500 leading-relaxed">{imp.reason}</span>
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</div>
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))}
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</div>
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)}
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</div>
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</div>
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);
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}
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