# All files / src/pages ValueOpportunities.tsx

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     /**
     * ValueOpportunities - Full-page view of bookmaker disagreement / value finder.
     *
     * Features:
     *  - Filter by disagreement score, sport, and time-to-game
     *  - Sort by score, time, or sport
     *  - Click any game to open the DisagreementBreakdown modal
     */
    import React, { useEffect, useState, useCallback } from 'react';
    import api from '../services/api';
    import {
      HighDisagreementGame,
      getDisagreementBadgeColor,
      getDisagreementCategory,
    } from '../types/disagreement.types';
    import DisagreementBreakdown from '../components/odds/DisagreementBreakdown';
    import { useDarkMode } from '../contexts/DarkModeContext';

    type SortKey = 'score' | 'time' | 'sport';

    const SPORT_LABELS: Record<string, string> = {
      americanfootball_nfl: 'NFL',
      americanfootball_ncaaf: 'NCAAF',
      basketball_nba: 'NBA',
      basketball_ncaab: 'NCAAB',
      icehockey_nhl: 'NHL',
      baseball_mlb: 'MLB',
      soccer_epl: 'EPL',
      soccer_uefa_champs_league: 'UEFA CL',
    };

    function sportLabel(key: string): string {
      return SPORT_LABELS[key] ?? key.replace(/_/g, ' ').toUpperCase();
    }

    function hoursUntil(iso: string): number {
      return (new Date(iso).getTime() - Date.now()) / 3_600_000;
    }

    export default function ValueOpportunities() {
      const { isDarkMode } = useDarkMode();
      const [games, setGames] = useState<HighDisagreementGame[]>([]);
      const [loading, setLoading] = useState(true);
      const [error, setError] = useState<string | null>(null);
      const [selectedGame, setSelectedGame] = useState<HighDisagreementGame | null>(null);

      // Filters
      const [minScore, setMinScore] = useState(60);
      const [sportFilter, setSportFilter] = useState<string>('all');
      const [maxHours, setMaxHours] = useState<number>(48);
      const [sortKey, setSortKey] = useState<SortKey>('score');

      const fetchGames = useCallback(async () => {
        setLoading(true);
        setError(null);
        try {
          const res = await api.get('/analytics/disagreement/live', {
            params: { threshold: minScore, limit: 100 },
          });
          setGames(res.data.data?.games ?? []);
        } catch (err: any) {
          setError(err.response?.data?.error ?? 'Failed to fetch value opportunities');
        } finally {
          setLoading(false);
        }
      }, [minScore]);

      useEffect(() => {
        fetchGames();
      }, [fetchGames]);

      // Derived data
      const sports = Array.from(new Set(games.map((g) => g.sportKey))).sort();

      const filtered = games
        .filter((g) => {
          if (sportFilter !== 'all' && g.sportKey !== sportFilter) return false;
          if (hoursUntil(g.commenceTime) > maxHours) return false;
          return true;
        })
        .sort((a, b) => {
          if (sortKey === 'score') return b.maxDisagreementScore - a.maxDisagreementScore;
          if (sortKey === 'time')
            return new Date(a.commenceTime).getTime() - new Date(b.commenceTime).getTime();
          return sportLabel(a.sportKey).localeCompare(sportLabel(b.sportKey));
        });

      const container = isDarkMode ? 'min-h-screen bg-gray-900 text-white' : 'min-h-screen bg-gray-50 text-gray-900';
      const cardBase = isDarkMode ? 'bg-gray-800 border-gray-700' : 'bg-white border-gray-200';
      const inputBase = isDarkMode
        ? 'bg-gray-700 border-gray-600 text-white'
        : 'bg-white border-gray-300 text-gray-900';

      return (
        <div className={container}>
          <div className="max-w-5xl mx-auto px-4 py-8">
            <h1 className="text-2xl font-bold mb-1">Value Opportunities</h1>
            <p className={`text-sm mb-6 ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
              Games where bookmakers strongly disagree — potential market inefficiencies.
            </p>

            {/* Filters */}
            <div className={`rounded-xl border p-4 mb-6 ${cardBase}`}>
              <div className="grid grid-cols-2 sm:grid-cols-4 gap-4">
                {/* Min disagreement score */}
                <div>
                  <label className={`block text-xs font-medium mb-1 ${isDarkMode ? 'text-gray-300' : 'text-gray-600'}`}>
                    Min Score
                  </label>
                  <select
                    value={minScore}
                    onChange={(e) => setMinScore(Number(e.target.value))}
                    className={`w-full rounded-lg border px-3 py-1.5 text-sm ${inputBase}`}
                  >
                    <option value={30}>30+ (Medium)</option>
                    <option value={60}>60+ (High)</option>
                    <option value={81}>81+ (Extreme)</option>
                  </select>
                </div>

                {/* Sport */}
                <div>
                  <label className={`block text-xs font-medium mb-1 ${isDarkMode ? 'text-gray-300' : 'text-gray-600'}`}>
                    Sport
                  </label>
                  <select
                    value={sportFilter}
                    onChange={(e) => setSportFilter(e.target.value)}
                    className={`w-full rounded-lg border px-3 py-1.5 text-sm ${inputBase}`}
                  >
                    <option value="all">All Sports</option>
                    {sports.map((s) => (
                      <option key={s} value={s}>
                        {sportLabel(s)}
                      </option>
                    ))}
                  </select>
                </div>

                {/* Time until game */}
                <div>
                  <label className={`block text-xs font-medium mb-1 ${isDarkMode ? 'text-gray-300' : 'text-gray-600'}`}>
                    Time to Game
                  </label>
                  <select
                    value={maxHours}
                    onChange={(e) => setMaxHours(Number(e.target.value))}
                    className={`w-full rounded-lg border px-3 py-1.5 text-sm ${inputBase}`}
                  >
                    <option value={3}>Next 3 hours</option>
                    <option value={12}>Next 12 hours</option>
                    <option value={24}>Next 24 hours</option>
                    <option value={48}>Next 48 hours</option>
                  </select>
                </div>

                {/* Sort */}
                <div>
                  <label className={`block text-xs font-medium mb-1 ${isDarkMode ? 'text-gray-300' : 'text-gray-600'}`}>
                    Sort By
                  </label>
                  <select
                    value={sortKey}
                    onChange={(e) => setSortKey(e.target.value as SortKey)}
                    className={`w-full rounded-lg border px-3 py-1.5 text-sm ${inputBase}`}
                  >
                    <option value="score">Disagreement Score</option>
                    <option value="time">Time to Game</option>
                    <option value="sport">Sport</option>
                  </select>
                </div>
              </div>

              <div className="mt-3 flex items-center justify-between">
                <p className={`text-xs ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
                  {filtered.length} game{filtered.length !== 1 ? 's' : ''} matching filters
                </p>
                <button
                  onClick={fetchGames}
                  className="text-xs text-blue-500 hover:underline"
                >
                  ↻ Refresh
                </button>
              </div>
            </div>

            {/* Loading state */}
            {loading && (
              <div className="space-y-3">
                {[...Array(5)].map((_, i) => (
                  <div
                    key={i}
                    className={`h-20 rounded-xl animate-pulse border ${cardBase}`}
                  />
                ))}
              </div>
            )}

            {/* Error state */}
            {!loading && error && (
              <div className="rounded-xl border border-red-200 bg-red-50 dark:border-red-800 dark:bg-red-900/20 p-4">
                <p className="text-sm text-red-600 dark:text-red-400">{error}</p>
              </div>
            )}

            {/* Empty state */}
            {!loading && !error && filtered.length === 0 && (
              <div className={`rounded-xl border p-8 text-center ${cardBase}`}>
                <p className="text-4xl mb-3">🤝</p>
                <p className="font-medium">No disagreements found</p>
                <p className={`text-sm mt-1 ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
                  Try lowering the minimum score or extending the time window.
                </p>
              </div>
            )}

            {/* Game list */}
            {!loading && !error && filtered.length > 0 && (
              <div className="space-y-3">
                {filtered.map((game) => {
                  const badge = getDisagreementBadgeColor(game.maxDisagreementScore);
                  const category = getDisagreementCategory(game.maxDisagreementScore);
                  const hours = hoursUntil(game.commenceTime);

                  return (
                    <button
                      key={game.gameId}
                      onClick={() => setSelectedGame(game)}
                      className={`w-full text-left rounded-xl border px-5 py-4 transition-shadow hover:shadow-md ${cardBase}`}
                    >
                      <div className="flex items-start justify-between gap-4">
                        <div className="min-w-0 flex-1">
                          <p className="font-semibold truncate">
                            {game.awayTeamName} <span className="font-normal">@</span>{' '}
                            {game.homeTeamName}
                          </p>
                          <div className="flex items-center gap-2 mt-1 flex-wrap">
                            <span className={`text-xs rounded px-1.5 py-0.5 ${isDarkMode ? 'bg-gray-700 text-gray-300' : 'bg-gray-100 text-gray-600'}`}>
                              {sportLabel(game.sportKey)}
                            </span>
                            <span className={`text-xs ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
                              {new Date(game.commenceTime).toLocaleString(undefined, {
                                month: 'short',
                                day: 'numeric',
                                hour: 'numeric',
                                minute: '2-digit',
                              })}
                            </span>
                            <span className={`text-xs ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
                              {hours < 1
                                ? `${Math.round(hours * 60)}m away`
                                : `${hours.toFixed(1)}h away`}
                            </span>
                          </div>

                          {/* Market pills */}
                          <div className="flex flex-wrap gap-1.5 mt-2">
                            {game.consensus.map((c) => (
                              <span
                                key={c.marketType}
                                className={`text-xs rounded-full px-2 py-0.5 ${getDisagreementBadgeColor(c.disagreementScore)}`}
                              >
                                {c.marketType === 'h2h'
                                  ? 'ML'
                                  : c.marketType === 'spreads'
                                  ? 'SPD'
                                  : 'O/U'}{' '}
                                {c.disagreementScore}
                              </span>
                            ))}
                          </div>
                        </div>

                        <div className="shrink-0 flex flex-col items-end gap-1">
                          <span className={`rounded-full px-3 py-1 text-sm font-bold ${badge}`}>
                            {game.maxDisagreementScore}
                          </span>
                          <span className={`text-xs capitalize ${isDarkMode ? 'text-gray-400' : 'text-gray-500'}`}>
                            {category}
                          </span>
                        </div>
                      </div>
                    </button>
                  );
                })}
              </div>
            )}
          </div>

          {/* Breakdown modal */}
          {selectedGame && (
            <DisagreementBreakdown
              game={selectedGame}
              onClose={() => setSelectedGame(null)}
            />
          )}
        </div>
      );
    }