{% extends "base.html" %}
{% block title %}Alpha Composite{% endblock %}

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

    <!-- Header -->
    <div class="flex flex-col sm:flex-row sm:items-center justify-between gap-4">
        <div>
            <h1 class="text-2xl font-bold text-white flex items-center gap-3">
                <div class="p-2 bg-cyan-600/20 rounded-xl">
                    <svg class="w-6 h-6 text-cyan-400" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" 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 1.5m.75-9l3-3 2.148 2.148A12.061 12.061 0 0116.5 7.605"/></svg>
                </div>
                Alpha Composite
            </h1>
            <p class="text-gray-400 text-sm mt-1">Multi-dimensional alpha score combining range, momentum, signals, value &amp; volume</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-4 py-2 bg-cyan-600 hover:bg-cyan-500 text-white text-sm font-medium rounded-lg transition disabled:opacity-50 flex items-center gap-2">
                <svg x-show="loading" class="w-4 h-4 animate-spin" 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 12h4z"/></svg>
                <span x-text="loading ? 'Analyzing...' : 'Refresh'"></span>
            </button>
        </div>
    </div>

    <!-- Loading -->
    <div x-show="loading && items.length === 0" x-cloak class="flex items-center justify-center py-16">
        <div class="text-center">
            <svg class="w-8 h-8 animate-spin text-cyan-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">Computing composite alpha scores...</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 || items.length > 0" x-cloak>

        <!-- 5 Stat Cards -->
        <div class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-5 gap-4 mb-6">
            <div class="bg-gray-800 border border-emerald-700/30 rounded-xl p-4">
                <div class="text-xs text-gray-400 uppercase tracking-wider">A+ Grade</div>
                <div class="text-2xl font-bold text-emerald-400 mt-1" x-text="stats.a_plus_count || 0"></div>
            </div>
            <div class="bg-gray-800 border border-cyan-700/30 rounded-xl p-4">
                <div class="text-xs text-gray-400 uppercase tracking-wider">A Grade</div>
                <div class="text-2xl font-bold text-cyan-400 mt-1" x-text="stats.a_count || 0"></div>
            </div>
            <div class="bg-gray-800 border border-blue-700/30 rounded-xl p-4">
                <div class="text-xs text-gray-400 uppercase tracking-wider">B Grade</div>
                <div class="text-2xl font-bold text-blue-400 mt-1" x-text="stats.b_count || 0"></div>
            </div>
            <div class="bg-gray-800 border border-gray-700 rounded-xl p-4">
                <div class="text-xs text-gray-400 uppercase tracking-wider">Avg Alpha</div>
                <div class="text-2xl font-bold text-white mt-1" x-text="fmt(stats.avg_alpha, 1)"></div>
            </div>
            <div class="bg-gray-800 border border-cyan-700/30 rounded-xl p-4 col-span-2 sm:col-span-1">
                <div class="text-xs text-gray-400 uppercase tracking-wider">Top Alpha</div>
                <div class="text-lg font-bold text-cyan-300 mt-1 truncate" x-text="stats.top_alpha_symbol || '-'"></div>
            </div>
        </div>

        <!-- Info Box -->
        <div class="bg-cyan-900/15 border border-cyan-700/25 rounded-xl p-4 mb-6">
            <div class="flex items-start gap-3">
                <svg class="w-5 h-5 text-cyan-400 mt-0.5 flex-shrink-0" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
                <div>
                    <h4 class="text-sm font-medium text-cyan-300">Composite Alpha Score</h4>
                    <p class="text-xs text-gray-400 mt-1">Weighted blend of 5 dimensions: <strong class="text-gray-300">Range</strong> (mean reversion quality), <strong class="text-gray-300">Bullish</strong> (momentum), <strong class="text-gray-300">Signal</strong> (trading signal quality), <strong class="text-gray-300">Value</strong> (discount from ATH), <strong class="text-gray-300">Volume</strong> (liquidity). Graded A+ through F.</p>
                    <div class="flex flex-wrap gap-2 mt-2">
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-emerald-900/40 text-emerald-300">A+ &gt;90</span>
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-cyan-900/40 text-cyan-300">A 80-90</span>
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-blue-900/40 text-blue-300">B 65-80</span>
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-amber-900/40 text-amber-300">C 50-65</span>
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-orange-900/40 text-orange-300">D 35-50</span>
                        <span class="text-[10px] px-1.5 py-0.5 rounded bg-red-900/40 text-red-300">F &lt;35</span>
                    </div>
                </div>
            </div>
        </div>

        <!-- Filters -->
        <div class="flex flex-col sm:flex-row gap-3 mb-6">
            <div class="flex gap-1 bg-gray-900 p-1 rounded-xl border border-gray-700 overflow-x-auto">
                <template x-for="f in [{v:'all',l:'All'},{v:'A+',l:'A+'},{v:'A',l:'A'},{v:'B',l:'B'},{v:'C',l:'C'},{v:'D',l:'D'},{v:'F',l:'F'}]" :key="f.v">
                    <button @click="gradeFilter = f.v; fetchData()"
                            class="px-3 py-1.5 text-xs font-medium rounded-lg transition whitespace-nowrap"
                            :class="gradeFilter === f.v ? 'bg-cyan-600 text-white' : 'text-gray-400 hover:text-gray-300 hover:bg-gray-800'"
                            x-text="f.l"></button>
                </template>
            </div>
            <div class="relative flex-1">
                <svg class="absolute left-3 top-1/2 -translate-y-1/2 w-4 h-4 text-gray-500" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"/></svg>
                <input type="text" x-model="search" placeholder="Search symbol..."
                       class="w-full pl-10 pr-4 py-2 bg-gray-800 border border-gray-700 rounded-lg text-sm text-gray-200 focus:outline-none focus:ring-1 focus:ring-cyan-500">
            </div>
        </div>

        <!-- Cards Grid -->
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
            <template x-for="(item, idx) in filteredItems" :key="item.asset_id + '-' + idx">
                <div class="bg-gray-800 border border-gray-700 rounded-xl p-5 hover:border-gray-600 transition">
                    <!-- Header: symbol + alpha score + grade -->
                    <div class="flex items-center justify-between mb-3">
                        <div class="flex items-center gap-2 min-w-0">
                            <img :src="item.icon_thumb_url" class="w-7 h-7 rounded-full bg-gray-700 flex-shrink-0" onerror="this.style.display='none'">
                            <div class="min-w-0">
                                <span class="text-white font-bold text-base" x-text="item.symbol"></span>
                                <span class="text-gray-500 text-xs ml-1 hidden sm:inline" x-text="item.name"></span>
                            </div>
                        </div>
                        <div class="flex items-center gap-2 flex-shrink-0">
                            <div class="text-right">
                                <div class="text-2xl font-black"
                                     :class="gradeColor(item.grade)"
                                     x-text="fmt(item.alpha_score, 1)"></div>
                                <div class="text-[10px] text-gray-500 -mt-0.5">alpha</div>
                            </div>
                            <span class="px-2 py-1 text-xs font-bold rounded-lg"
                                  :class="gradeBadge(item.grade)"
                                  x-text="item.grade"></span>
                        </div>
                    </div>

                    <!-- Alpha Trend + Price -->
                    <div class="flex items-center justify-between mb-3">
                        <span class="px-2 py-0.5 text-[10px] font-semibold rounded"
                              :class="trendBadge(item.alpha_trend)"
                              x-text="item.alpha_trend || 'STABLE'"></span>
                        <span class="text-sm text-gray-300" x-text="fmtPrice(item.current_price_idr)"></span>
                    </div>

                    <!-- Dimension Breakdown: 5 mini bars -->
                    <div class="space-y-1.5 mb-4">
                        <template x-for="dim in ['range','bullish','signal','value','volume']" :key="dim">
                            <div class="flex items-center gap-2">
                                <span class="text-[10px] text-gray-500 w-12 text-right capitalize" x-text="dim"></span>
                                <div class="flex-1 bg-gray-700 rounded-full h-1.5">
                                    <div class="h-1.5 rounded-full transition-all"
                                         :class="dimBarColor(item.dimension_breakdown[dim])"
                                         :style="'width:' + Math.min(100, item.dimension_breakdown[dim] || 0) + '%'"></div>
                                </div>
                                <span class="text-[10px] font-medium w-7 text-right"
                                      :class="dimBarColor(item.dimension_breakdown[dim]).replace('bg-', 'text-').replace('-500', '-400')"
                                      x-text="fmt(item.dimension_breakdown[dim], 0)"></span>
                            </div>
                        </template>
                    </div>

                    <!-- Key Metrics -->
                    <div class="grid grid-cols-3 gap-2 mb-3">
                        <div class="bg-gray-900/40 rounded-lg p-2 text-center">
                            <div class="text-[10px] text-gray-500">Signal</div>
                            <div class="text-xs font-bold mt-0.5"
                                 :class="item.signal_type === 'BUY' ? 'text-emerald-400' : item.signal_type === 'SELL' ? 'text-red-400' : 'text-gray-400'"
                                 x-text="item.signal_type || '-'"></div>
                        </div>
                        <div class="bg-gray-900/40 rounded-lg p-2 text-center">
                            <div class="text-[10px] text-gray-500">RSI</div>
                            <div class="text-xs font-medium text-gray-300 mt-0.5"
                                 x-text="item.rsi_latest != null ? fmt(item.rsi_latest, 1) : '-'"></div>
                        </div>
                        <div class="bg-gray-900/40 rounded-lg p-2 text-center">
                            <div class="text-[10px] text-gray-500">Confidence</div>
                            <div class="text-xs font-medium mt-0.5"
                                 :class="item.signal_confidence === 'High' ? 'text-emerald-400' : item.signal_confidence === 'Medium' ? 'text-amber-400' : 'text-gray-400'"
                                 x-text="item.signal_confidence || '-'"></div>
                        </div>
                    </div>

                    <!-- Price Changes + Bottom Info -->
                    <div class="flex items-center justify-between text-xs border-t border-gray-700 pt-2.5">
                        <div class="flex items-center gap-3">
                            <span :class="(item.price_change_24h || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                                  x-text="'24h ' + fmtPct(item.price_change_24h)"></span>
                            <span :class="(item.price_change_7d || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                                  x-text="'7d ' + fmtPct(item.price_change_7d)"></span>
                        </div>
                        <span class="text-gray-500" x-show="item.range_position != null"
                              x-text="'Range: ' + fmt(item.range_position, 0) + '%'"></span>
                    </div>
                </div>
            </template>
        </div>

        <!-- Load More -->
        <div x-show="hasMore" class="text-center mt-6">
            <button @click="loadMore()" :disabled="loading"
                    class="px-6 py-2 bg-gray-800 border border-gray-700 text-gray-300 hover:text-white hover:border-gray-600 text-sm rounded-lg transition disabled:opacity-50">
                Load More
            </button>
        </div>

        <!-- Empty States -->
        <div x-show="filteredItems.length === 0 && items.length > 0" x-cloak class="text-center py-16">
            <svg class="w-12 h-12 text-gray-600 mx-auto mb-3" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="M21 21l-5.197-5.197m0 0A7.5 7.5 0 105.196 5.196a7.5 7.5 0 0010.607 10.607z"/></svg>
            <p class="text-gray-500">No assets matching your filters</p>
        </div>
        <div x-show="items.length === 0 && !loading && !error" x-cloak class="text-center py-16">
            <svg class="w-12 h-12 text-gray-600 mx-auto mb-3" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" 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-gray-500">No alpha data available. Click Refresh to compute.</p>
        </div>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
function alphaCompositePanel() {
    return {
        loading: false, error: null, lastRefresh: null,
        items: [], stats: {},
        search: '', gradeFilter: 'all',
        currentPage: 1, hasMore: false,

        get filteredItems() {
            if (!this.search) return this.items;
            const q = this.search.toUpperCase();
            return this.items.filter(i =>
                (i.symbol || '').toUpperCase().includes(q) ||
                (i.name || '').toUpperCase().includes(q)
            );
        },

        gradeColor(g) {
            const m = { 'A+': 'text-emerald-400', 'A': 'text-cyan-400', 'B': 'text-blue-400',
                         'C': 'text-amber-400', 'D': 'text-orange-400', 'F': 'text-red-400' };
            return m[g] || 'text-gray-400';
        },
        gradeBadge(g) {
            const m = {
                'A+': 'bg-emerald-900/50 text-emerald-300 border border-emerald-700/30',
                'A': 'bg-cyan-900/50 text-cyan-300 border border-cyan-700/30',
                'B': 'bg-blue-900/50 text-blue-300 border border-blue-700/30',
                'C': 'bg-amber-900/50 text-amber-300 border border-amber-700/30',
                'D': 'bg-orange-900/50 text-orange-300 border border-orange-700/30',
                'F': 'bg-red-900/50 text-red-300 border border-red-700/30',
            };
            return m[g] || 'bg-gray-700 text-gray-400';
        },
        trendBadge(t) {
            if (t === 'IMPROVING') return 'bg-emerald-900/40 text-emerald-400';
            if (t === 'DECLINING') return 'bg-red-900/40 text-red-400';
            return 'bg-gray-700/50 text-gray-400';
        },
        dimBarColor(v) {
            if (v >= 70) return 'bg-emerald-500';
            if (v >= 50) return 'bg-cyan-500';
            if (v >= 30) return 'bg-amber-500';
            return 'bg-gray-500';
        },

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

        async fetchData() {
            this.loading = true; this.error = null; this.currentPage = 1;
            try {
                const params = new URLSearchParams({
                    asset_type: '{{ asset_mode }}',
                    limit: '50', page: '1',
                    grade: this.gradeFilter,
                });
                const res = await fetch('/api/v1/market/screener/alpha-composite?' + params);
                if (res.redirected) { window.location.href = res.url; return; }
                const json = await res.json();
                if (json.error) { this.error = json.error; }
                else {
                    this.items = json.items || [];
                    this.stats = json.stats || {};
                    this.hasMore = json.has_more || false;
                }
            } catch (e) { this.error = 'Failed to load: ' + e.message; }
            finally { this.loading = false; this.lastRefresh = new Date().toLocaleTimeString('id-ID'); }
        },

        async loadMore() {
            if (this.loading || !this.hasMore) return;
            this.loading = true;
            this.currentPage++;
            try {
                const params = new URLSearchParams({
                    asset_type: '{{ asset_mode }}',
                    limit: '50', page: String(this.currentPage),
                    grade: this.gradeFilter,
                });
                const res = await fetch('/api/v1/market/screener/alpha-composite?' + params);
                const json = await res.json();
                if (json.items) {
                    this.items = this.items.concat(json.items);
                    this.hasMore = json.has_more || false;
                }
            } catch (e) { this.error = 'Load more failed: ' + e.message; }
            finally { this.loading = false; }
        },

        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 %}