{% extends "base.html" %}
{% block title %}Regime Strategy Selector{% endblock %}

{% block content %}
<div x-data="regimeStrategyApp()" x-init="init()" class="space-y-6">

    <!-- Header -->
    <div class="flex items-center justify-between">
        <div>
            <h1 class="text-2xl font-bold text-white">Regime Strategy Selector</h1>
            <p class="mt-1 text-sm text-gray-400">Identify market regimes and get optimal strategy recommendations per asset</p>
        </div>
        <div class="flex items-center gap-3">
            <span class="text-xs text-gray-500" x-text="lastRefresh ? 'Updated: ' + lastRefresh : ''"></span>
            <button @click="fetchData()" :disabled="loading"
                    class="px-3 py-1.5 text-xs bg-gray-800 hover:bg-gray-700 text-gray-300 rounded-lg transition disabled:opacity-50">
                Refresh
            </button>
        </div>
    </div>

    <!-- Loading -->
    <div x-show="loading" class="flex items-center justify-center py-16">
        <div class="text-center">
            <svg class="w-8 h-8 animate-spin text-koin-400 mx-auto mb-3" fill="none" viewBox="0 0 24 24">
                <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"/>
                <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"/>
            </svg>
            <p class="text-sm text-gray-500">Analyzing market regimes...</p>
        </div>
    </div>

    <!-- Error -->
    <div x-show="error" x-cloak class="bg-red-900/20 border border-red-800 rounded-xl p-4">
        <p class="text-sm text-red-400" x-text="error"></p>
    </div>

    <!-- Content -->
    <div x-show="!loading && !error" x-cloak>

        <!-- Regime Distribution Overview -->
        <div class="grid grid-cols-3 md:grid-cols-6 gap-3 mb-6">
            <button @click="filter = filter === 'trending_up' ? 'all' : 'trending_up'"
                    :class="filter === 'trending_up' ? 'ring-2 ring-emerald-500' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-emerald-400" x-text="regimeCounts.trending_up">0</p>
                <p class="text-xs text-gray-500 mt-0.5">Trending Up</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-emerald-500" :style="'width:' + regimePct('trending_up') + '%'"></div>
                </div>
            </button>
            <button @click="filter = filter === 'trending_down' ? 'all' : 'trending_down'"
                    :class="filter === 'trending_down' ? 'ring-2 ring-red-500' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-red-400" x-text="regimeCounts.trending_down">0</p>
                <p class="text-xs text-gray-500 mt-0.5">Trending Down</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-red-500" :style="'width:' + regimePct('trending_down') + '%'"></div>
                </div>
            </button>
            <button @click="filter = filter === 'ranging' ? 'all' : 'ranging'"
                    :class="filter === 'ranging' ? 'ring-2 ring-blue-500' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-blue-400" x-text="regimeCounts.ranging">0</p>
                <p class="text-xs text-gray-500 mt-0.5">Ranging</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-blue-500" :style="'width:' + regimePct('ranging') + '%'"></div>
                </div>
            </button>
            <button @click="filter = filter === 'high_vol' ? 'all' : 'high_vol'"
                    :class="filter === 'high_vol' ? 'ring-2 ring-amber-500' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-amber-400" x-text="regimeCounts.high_vol">0</p>
                <p class="text-xs text-gray-500 mt-0.5">High Vol</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-amber-500" :style="'width:' + regimePct('high_vol') + '%'"></div>
                </div>
            </button>
            <button @click="filter = filter === 'low_vol' ? 'all' : 'low_vol'"
                    :class="filter === 'low_vol' ? 'ring-2 ring-gray-400' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-gray-400" x-text="regimeCounts.low_vol">0</p>
                <p class="text-xs text-gray-500 mt-0.5">Low Vol</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-gray-500" :style="'width:' + regimePct('low_vol') + '%'"></div>
                </div>
            </button>
            <button @click="filter = filter === 'breakout' ? 'all' : 'breakout'"
                    :class="filter === 'breakout' ? 'ring-2 ring-purple-500' : ''"
                    class="bg-gray-800 border border-gray-700 rounded-xl p-3 text-center hover:border-gray-600 transition">
                <p class="text-lg font-bold text-purple-400" x-text="regimeCounts.breakout">0</p>
                <p class="text-xs text-gray-500 mt-0.5">Breakout</p>
                <div class="w-full bg-gray-700 rounded-full h-1 mt-2">
                    <div class="h-1 rounded-full bg-purple-500" :style="'width:' + regimePct('breakout') + '%'"></div>
                </div>
            </button>
        </div>

        <!-- Active Filter Indicator -->
        <div x-show="filter !== 'all'" class="flex items-center gap-2 mb-4">
            <span class="text-xs text-gray-400">Filtering:</span>
            <span class="px-2 py-0.5 text-xs font-medium rounded-full" :class="regimeBadgeClass(filter)"
                  x-text="filter.replace(/_/g, ' ')"></span>
            <button @click="filter = 'all'" class="text-xs text-gray-500 hover:text-gray-300 transition">&times; Clear</button>
        </div>

        <!-- Empty State -->
        <div x-show="filteredItems.length === 0" class="text-center py-16">
            <svg class="w-12 h-12 text-gray-600 mx-auto mb-3" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M3.75 3v11.25A2.25 2.25 0 006 16.5h2.25M3.75 3h-1.5m1.5 0h16.5m0 0h1.5m-1.5 0v11.25A2.25 2.25 0 0118 16.5h-2.25m-7.5 0h7.5m-7.5 0l-1 3m8.5-3l1 3m0 0l.5 1.5m-.5-1.5h-9.5m0 0l-.5 1.5"/>
            </svg>
            <p class="text-sm text-gray-500">No regime data available for this filter</p>
        </div>

        <!-- Cards Grid -->
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
            <template x-for="item in filteredItems" :key="item.symbol">
                <div class="bg-gray-800 border border-gray-700 rounded-xl p-5 hover:border-gray-600 transition">
                    <!-- Coin Header with Regime Badge -->
                    <div class="flex items-center justify-between mb-4">
                        <div class="flex items-center gap-3">
                            <div class="w-8 h-8 rounded-full bg-gray-700 flex items-center justify-center overflow-hidden">
                                <img :src="item.icon || __stockIconUrl(item.symbol)" :alt="item.symbol"
                                     class="w-8 h-8 rounded-full" onerror="this.style.display='none'">
                            </div>
                            <div>
                                <p class="text-sm font-bold text-white" x-text="item.symbol"></p>
                                <p class="text-xs text-gray-500" x-text="item.name || item.symbol"></p>
                            </div>
                        </div>
                        <span class="px-2.5 py-1 text-xs font-bold rounded-full uppercase"
                              :class="regimeBadgeClass(item.regime)"
                              x-text="(item.regime || 'unknown').replace(/_/g, ' ')"></span>
                    </div>

                    <!-- Regime Confidence & Duration -->
                    <div class="grid grid-cols-2 gap-3 mb-4">
                        <div>
                            <p class="text-xs text-gray-500 mb-1">Regime Confidence</p>
                            <div class="flex items-center gap-2">
                                <div class="flex-1 bg-gray-700 rounded-full h-2">
                                    <div class="h-2 rounded-full bg-koin-500 transition-all duration-500"
                                         :style="'width:' + Math.min(item.confidence || 0, 100) + '%'"></div>
                                </div>
                                <span class="text-xs font-medium text-koin-400" x-text="fmt(item.confidence, 0) + '%'"></span>
                            </div>
                        </div>
                        <div>
                            <p class="text-xs text-gray-500 mb-1">Duration</p>
                            <p class="text-sm font-medium text-gray-300" x-text="(item.duration || '-') + (typeof item.duration === 'number' ? ' days' : '')"></p>
                        </div>
                    </div>

                    <!-- Regime Indicators (4 mini bars) -->
                    <div class="grid grid-cols-2 gap-x-4 gap-y-2 mb-4">
                        <div>
                            <div class="flex items-center justify-between mb-0.5">
                                <span class="text-xs text-gray-500">Trend Strength</span>
                                <span class="text-xs text-gray-400" x-text="fmt(item.indicators?.trend_strength * 100, 0) + '%'"></span>
                            </div>
                            <div class="w-full bg-gray-700 rounded-full h-1.5">
                                <div class="h-1.5 rounded-full bg-emerald-500/70" :style="'width:' + Math.min((item.indicators?.trend_strength || 0) * 100, 100) + '%'"></div>
                            </div>
                        </div>
                        <div>
                            <div class="flex items-center justify-between mb-0.5">
                                <span class="text-xs text-gray-500">Volatility %ile</span>
                                <span class="text-xs text-gray-400" x-text="fmt(item.indicators?.volatility_percentile * 100, 0) + '%'"></span>
                            </div>
                            <div class="w-full bg-gray-700 rounded-full h-1.5">
                                <div class="h-1.5 rounded-full bg-amber-500/70" :style="'width:' + Math.min((item.indicators?.volatility_percentile || 0) * 100, 100) + '%'"></div>
                            </div>
                        </div>
                        <div>
                            <div class="flex items-center justify-between mb-0.5">
                                <span class="text-xs text-gray-500">Mean Reversion</span>
                                <span class="text-xs text-gray-400" x-text="fmt(item.indicators?.mean_reversion * 100, 0) + '%'"></span>
                            </div>
                            <div class="w-full bg-gray-700 rounded-full h-1.5">
                                <div class="h-1.5 rounded-full bg-blue-500/70" :style="'width:' + Math.min((item.indicators?.mean_reversion || 0) * 100, 100) + '%'"></div>
                            </div>
                        </div>
                        <div>
                            <div class="flex items-center justify-between mb-0.5">
                                <span class="text-xs text-gray-500">Momentum</span>
                                <span class="text-xs text-gray-400" x-text="fmt(item.indicators?.momentum * 100, 0) + '%'"></span>
                            </div>
                            <div class="w-full bg-gray-700 rounded-full h-1.5">
                                <div class="h-1.5 rounded-full bg-purple-500/70" :style="'width:' + Math.min((item.indicators?.momentum || 0) * 100, 100) + '%'"></div>
                            </div>
                        </div>
                    </div>

                    <!-- Recommended Strategy -->
                    <div x-show="item.strategy" class="bg-gray-900/50 border border-koin-800/30 rounded-lg p-4 mb-4">
                        <p class="text-xs text-koin-400 font-semibold uppercase tracking-wider mb-2">Recommended Strategy</p>
                        <p class="text-sm font-bold text-white mb-1" x-text="item.strategy?.name || '-'"></p>
                        <p class="text-xs text-gray-400 mb-3" x-text="item.strategy?.description || ''"></p>
                        <div class="grid grid-cols-2 gap-x-4 gap-y-1.5 text-xs">
                            <div class="flex justify-between" x-show="item.strategy?.entry_type">
                                <span class="text-gray-500">Entry Type</span>
                                <span class="text-gray-300" x-text="item.strategy?.entry_type"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.entry_price">
                                <span class="text-gray-500">Entry Price</span>
                                <span class="text-white font-mono" x-text="fmtPrice(item.strategy?.entry_price)"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.stop_loss">
                                <span class="text-gray-500">Stop Loss</span>
                                <span class="text-red-400 font-mono" x-text="fmtPrice(item.strategy?.stop_loss)"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.tp1">
                                <span class="text-gray-500">TP1</span>
                                <span class="text-emerald-400 font-mono" x-text="fmtPrice(item.strategy?.tp1)"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.tp2">
                                <span class="text-gray-500">TP2</span>
                                <span class="text-emerald-400 font-mono" x-text="fmtPrice(item.strategy?.tp2)"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.position_size">
                                <span class="text-gray-500">Position Size</span>
                                <span class="text-gray-300" x-text="item.strategy?.position_size"></span>
                            </div>
                            <div class="flex justify-between" x-show="item.strategy?.max_risk">
                                <span class="text-gray-500">Max Risk</span>
                                <span class="text-amber-400" x-text="item.strategy?.max_risk"></span>
                            </div>
                        </div>
                    </div>

                    <!-- Alternative Strategies -->
                    <div x-show="item.alternatives && item.alternatives.length > 0" class="mb-4">
                        <p class="text-xs text-gray-500 mb-2">Alternative Strategies</p>
                        <div class="space-y-1.5">
                            <template x-for="alt in (item.alternatives || []).slice(0, 3)" :key="alt.name">
                                <div class="flex items-center gap-2">
                                    <span class="text-xs text-gray-300 w-28 truncate" x-text="alt.name"></span>
                                    <div class="flex-1 bg-gray-700 rounded-full h-1.5">
                                        <div class="h-1.5 rounded-full bg-gray-500 transition-all duration-300"
                                             :style="'width:' + Math.min((alt.suitability || 0) * 100, 100) + '%'"></div>
                                    </div>
                                    <span class="text-xs text-gray-500 w-10 text-right" x-text="fmt(alt.suitability * 100, 0) + '%'"></span>
                                </div>
                            </template>
                        </div>
                    </div>

                    <!-- Backtest Mini Card -->
                    <div x-show="item.backtest" class="bg-gray-900/50 border border-gray-700/50 rounded-lg p-3">
                        <p class="text-xs text-gray-500 mb-2">Strategy Backtest</p>
                        <div class="grid grid-cols-4 gap-2 text-center">
                            <div>
                                <p class="text-sm font-bold text-koin-400" x-text="fmt(item.backtest?.win_rate, 1) + '%'"></p>
                                <p class="text-xs text-gray-500">Win Rate</p>
                            </div>
                            <div>
                                <p class="text-sm font-bold"
                                   :class="(item.backtest?.avg_return || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                                   x-text="fmtPct(item.backtest?.avg_return)"></p>
                                <p class="text-xs text-gray-500">Avg Return</p>
                            </div>
                            <div>
                                <p class="text-sm font-bold text-red-400" x-text="fmt(item.backtest?.max_dd, 1) + '%'"></p>
                                <p class="text-xs text-gray-500">Max DD</p>
                            </div>
                            <div>
                                <p class="text-sm font-bold text-gray-300" x-text="fmt(item.backtest?.sharpe, 2)"></p>
                                <p class="text-xs text-gray-500">Sharpe</p>
                            </div>
                        </div>
                    </div>
                </div>
            </template>
        </div>
    </div>
</div>

<script>
function regimeStrategyApp() {
    return {
        loading: false, error: null, lastRefresh: null,
        items: [], filter: 'all',
        regimeCounts: { trending_up: 0, trending_down: 0, ranging: 0, high_vol: 0, low_vol: 0, breakout: 0 },

        init() { this.fetchData(); },

        get filteredItems() {
            if (this.filter === 'all') return this.items;
            return this.items.filter(i => this.normalizeRegime(i.regime) === this.filter);
        },

        normalizeRegime(r) {
            const regime = (r || '').toLowerCase().replace(/[\s-]+/g, '_');
            if (regime.includes('trend') && regime.includes('up')) return 'trending_up';
            if (regime.includes('trend') && regime.includes('down')) return 'trending_down';
            if (regime.includes('rang') || regime.includes('sideways')) return 'ranging';
            if (regime.includes('high') && regime.includes('vol')) return 'high_vol';
            if (regime.includes('low') && regime.includes('vol')) return 'low_vol';
            if (regime.includes('break')) return 'breakout';
            return regime;
        },

        regimePct(type) {
            const total = this.items.length || 1;
            return ((this.regimeCounts[type] || 0) / total * 100).toFixed(0);
        },

        regimeBadgeClass(regime) {
            const r = this.normalizeRegime(regime);
            if (r === 'trending_up') return 'bg-emerald-900/50 text-emerald-400';
            if (r === 'trending_down') return 'bg-red-900/50 text-red-400';
            if (r === 'ranging') return 'bg-blue-900/50 text-blue-400';
            if (r === 'high_vol') return 'bg-amber-900/50 text-amber-400';
            if (r === 'low_vol') return 'bg-gray-700/50 text-gray-400';
            if (r === 'breakout') return 'bg-purple-900/50 text-purple-400';
            return 'bg-gray-700/50 text-gray-400';
        },

        async fetchData() {
            this.loading = true; this.error = null;
            try {
                const params = new URLSearchParams({ asset_type: '{{ asset_mode }}' });
                const res = await fetch(`/api/v1/market/regime-strategy?${params}`);
                const json = await res.json();
                if (json.status === 'success') {
                    const d = json.data || {};
                    this.items = d.items || d.results || [];
                    this.regimeCounts = { trending_up: 0, trending_down: 0, ranging: 0, high_vol: 0, low_vol: 0, breakout: 0 };
                    this.items.forEach(i => {
                        const r = this.normalizeRegime(i.regime);
                        if (this.regimeCounts.hasOwnProperty(r)) this.regimeCounts[r]++;
                    });
                } else {
                    this.error = json.message || 'Failed to load data';
                }
            } catch (e) { this.error = e.message; }
            finally { this.loading = false; this.lastRefresh = new Date().toLocaleTimeString('id-ID'); }
        },

        fmt(n, d=2) { return n != null ? Number(n).toFixed(d) : '-'; },
        fmtPct(n) { return n != null ? (n >= 0 ? '+' : '') + Number(n).toFixed(2) + '%' : '-'; },
        fmtPrice(n) { return n != null ? 'Rp ' + Number(n).toLocaleString('id-ID') : '-'; },
    };
}
</script>
{% endblock %}