{% extends "base.html" %}
{% block title %}Whale Accumulation Detector{% endblock %}

{% block content %}
<div x-data="whaleAccumulationPanel()" x-init="loadData()" class="space-y-5">

    <!-- Header -->
    <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-3">
        <div class="flex items-center gap-3">
            <a href="{{ tools_base }}/" class="text-gray-500 hover:text-gray-300 transition">
                <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"/></svg>
            </a>
            <div>
                <h1 class="text-2xl font-bold text-white flex items-center gap-2">
                    <svg class="w-6 h-6 text-orange-400" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24">
                        <path stroke-linecap="round" stroke-linejoin="round" d="M12 3v17.25m0 0c-1.472 0-2.882.265-4.185.75M12 20.25c1.472 0 2.882.265 4.185.75M18.75 4.97A48.416 48.416 0 0012 4.5c-2.291 0-4.545.16-6.75.47m13.5 0c1.01.143 2.01.317 3 .52m-3-.52l2.62 10.726c.122.499-.106 1.028-.589 1.202a5.988 5.988 0 01-2.031.352 5.988 5.988 0 01-2.031-.352c-.483-.174-.711-.703-.59-1.202L18.75 4.971zm-16.5.52c.99-.203 1.99-.377 3-.52m0 0l2.62 10.726c.122.499-.106 1.028-.589 1.202a5.989 5.989 0 01-2.031.352 5.989 5.989 0 01-2.031-.352c-.483-.174-.711-.703-.59-1.202L5.25 4.971z"/>
                    </svg>
                    Whale Accumulation Detector
                </h1>
                <p class="text-sm text-gray-400 mt-0.5">Detect unusual volume + price patterns indicating large-scale whale accumulation</p>
            </div>
        </div>
        <div class="flex flex-wrap items-center gap-2">
            <!-- Signal Filter -->
            <select x-model="filters.signal" @change="loadData()"
                    class="bg-gray-800 border border-gray-700 rounded-lg px-3 py-1.5 text-sm text-gray-300 focus:outline-none focus:ring-1 focus:ring-orange-500">
                <option value="all">All Signals</option>
                <option value="heavy_accumulation">Heavy Accumulation</option>
                <option value="accumulating">Accumulating</option>
                <option value="possible">Possible</option>
            </select>
            <!-- Asset Type -->
            <select x-model="filters.asset_type" @change="loadData()"
                    class="bg-gray-800 border border-gray-700 rounded-lg px-3 py-1.5 text-sm text-gray-300 focus:outline-none focus:ring-1 focus:ring-orange-500">
                <option value="all">All Assets</option>
                <option value="crypto">Crypto</option>
                <option value="stock">Saham IDX</option>
                <option value="stock_us">Saham US</option>
            </select>
            <!-- Sort -->
            <select x-model="filters.sort" @change="loadData()"
                    class="bg-gray-800 border border-gray-700 rounded-lg px-3 py-1.5 text-sm text-gray-300 focus:outline-none focus:ring-1 focus:ring-orange-500">
                <option value="score_desc">Score (High)</option>
                <option value="volume_ratio_desc">Volume Ratio</option>
                <option value="market_cap">Market Cap</option>
            </select>
            <!-- Refresh -->
            <button @click="loadData()" :disabled="loading"
                    class="flex items-center gap-2 px-4 py-1.5 text-sm font-medium rounded-lg transition"
                    :class="loading ? 'bg-gray-800 text-gray-500 cursor-not-allowed' : 'bg-orange-600 hover:bg-orange-500 text-white'">
                <svg :class="loading && 'animate-spin'" class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 4v5h.582m15.356 2A8.001 8.001 0 004.582 9m0 0H9m11 11v-5h-.581m0 0a8.003 8.003 0 01-15.357-2m15.357 2H15"/>
                </svg>
                <span x-text="loading ? 'Loading...' : 'Refresh'"></span>
            </button>
        </div>
    </div>

    <!-- Stats Cards -->
    <div class="grid grid-cols-2 md:grid-cols-4 gap-3">
        <div class="bg-gray-800 border border-gray-700 rounded-xl p-4">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Total Analyzed</p>
            <p class="text-2xl font-bold text-white mt-1" x-text="stats.total_analyzed"></p>
        </div>
        <div class="bg-gray-800 border border-orange-800/50 rounded-xl p-4">
            <div class="flex items-center gap-2">
                <span class="w-2.5 h-2.5 rounded-full bg-orange-500 animate-pulse"></span>
                <p class="text-xs text-gray-500 uppercase tracking-wider">Heavy Accumulation</p>
            </div>
            <p class="text-2xl font-bold text-orange-400 mt-1" x-text="stats.heavy_count"></p>
        </div>
        <div class="bg-gray-800 border border-gray-700 rounded-xl p-4">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Avg Volume Ratio</p>
            <p class="text-2xl font-bold text-orange-300 mt-1" x-text="stats.avg_volume_ratio != null ? (stats.avg_volume_ratio * 100).toFixed(2) + '%' : '-'"></p>
        </div>
        <div class="bg-gray-800 border border-gray-700 rounded-xl p-4">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Strongest</p>
            <p class="text-2xl font-bold text-white mt-1" x-text="stats.strongest_symbol || '-'"></p>
        </div>
    </div>

    <!-- Loading Skeleton -->
    <template x-if="loading && items.length === 0">
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
            <template x-for="i in 6" :key="'sk-'+i">
                <div class="bg-gray-800 border border-gray-700 rounded-xl p-5 animate-pulse">
                    <div class="flex items-center gap-3 mb-4">
                        <div class="w-10 h-10 rounded-full bg-gray-700"></div>
                        <div class="flex-1">
                            <div class="h-4 bg-gray-700 rounded w-24 mb-1"></div>
                            <div class="h-3 bg-gray-700 rounded w-16"></div>
                        </div>
                        <div class="h-8 bg-gray-700 rounded w-16"></div>
                    </div>
                    <div class="space-y-2">
                        <div class="h-2 bg-gray-700 rounded"></div>
                        <div class="h-2 bg-gray-700 rounded w-3/4"></div>
                        <div class="h-2 bg-gray-700 rounded w-1/2"></div>
                    </div>
                </div>
            </template>
        </div>
    </template>

    <!-- Error -->
    <div x-show="error" x-cloak class="bg-red-900/20 border border-red-800/50 rounded-xl p-4 flex items-center gap-3">
        <svg class="w-5 h-5 text-red-400 flex-shrink-0" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" d="M12 9v3.75m-9.303 3.376c-.866 1.5.217 3.374 1.948 3.374h14.71c1.73 0 2.813-1.874 1.948-3.374L13.949 3.378c-.866-1.5-3.032-1.5-3.898 0L2.697 16.126zM12 15.75h.007v.008H12v-.008z"/>
        </svg>
        <p class="text-sm text-red-300" x-text="error"></p>
        <button @click="loadData()" class="ml-auto text-xs px-3 py-1 bg-red-800/50 hover:bg-red-700/50 text-red-300 rounded-lg transition">Retry</button>
    </div>

    <!-- Empty State -->
    <div x-show="!loading && !error && items.length === 0" x-cloak
         class="text-center py-16 bg-gray-800/50 rounded-xl border border-gray-700">
        <svg class="mx-auto h-12 w-12 text-gray-600" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" d="M12 3v17.25m0 0c-1.472 0-2.882.265-4.185.75M12 20.25c1.472 0 2.882.265 4.185.75"/>
        </svg>
        <h3 class="mt-4 text-lg font-medium text-gray-400">No Whale Accumulation Data</h3>
        <p class="mt-2 text-sm text-gray-600">No accumulation patterns detected with current filters.</p>
    </div>

    <!-- Card Grid -->
    <div x-show="!loading || items.length > 0" x-cloak class="grid grid-cols-1 lg:grid-cols-2 gap-4">
        <template x-for="(item, idx) in items" :key="item.asset_id || idx">
            <div class="bg-gray-800 border border-gray-700 rounded-xl overflow-hidden hover:border-orange-700/50 transition"
                 :style="'animation-delay:' + (idx * 30) + 'ms'">

                <!-- Card Header -->
                <div class="p-4 pb-3">
                    <div class="flex items-center justify-between">
                        <div class="flex items-center gap-3 min-w-0">
                            <img x-show="item.icon_url" :src="item.icon_url" class="w-9 h-9 rounded-full flex-shrink-0" :alt="item.symbol">
                            <div x-show="!item.icon_url" class="w-9 h-9 rounded-full bg-gray-700 flex items-center justify-center text-xs font-bold text-gray-300 flex-shrink-0"
                                 x-text="(item.symbol || '?').substring(0, 3).toUpperCase()"></div>
                            <div class="min-w-0">
                                <div class="flex items-center gap-2">
                                    <span class="text-white font-semibold truncate" x-text="item.name || item.symbol"></span>
                                    <!-- Signal Badge -->
                                    <span class="text-[10px] px-1.5 py-0.5 rounded font-bold uppercase tracking-wider flex-shrink-0"
                                          :class="signalBadge(item.signal)"
                                          x-text="signalLabel(item.signal)"></span>
                                </div>
                                <span class="text-xs text-gray-500 font-mono" x-text="(item.symbol || '').toUpperCase()"></span>
                            </div>
                        </div>
                        <!-- Score -->
                        <div class="text-right flex-shrink-0 ml-3">
                            <div class="text-3xl font-extrabold tabular-nums"
                                 :class="item.score >= 75 ? 'text-orange-400' : item.score >= 55 ? 'text-amber-400' : item.score >= 35 ? 'text-gray-300' : 'text-gray-500'"
                                 x-text="item.score != null ? item.score.toFixed(0) : '-'"></div>
                            <div class="text-[10px] text-gray-500 uppercase tracking-wider">Score</div>
                        </div>
                    </div>
                </div>

                <!-- Volume Ratio Indicator -->
                <div class="px-4 pb-3">
                    <div class="flex items-center justify-between text-xs mb-1">
                        <span class="text-gray-400">Volume / Market Cap</span>
                        <span class="font-bold tabular-nums"
                              :class="item.volume_ratio >= 0.05 ? 'text-orange-400' : item.volume_ratio >= 0.02 ? 'text-amber-400' : 'text-gray-400'"
                              x-text="(item.volume_ratio * 100).toFixed(2) + '%'"></span>
                    </div>
                    <div class="w-full h-2 bg-gray-900 rounded-full overflow-hidden">
                        <div class="h-full rounded-full transition-all duration-500"
                             :class="item.volume_ratio >= 0.05 ? 'bg-orange-500' : item.volume_ratio >= 0.02 ? 'bg-amber-500' : 'bg-gray-600'"
                             :style="'width:' + Math.min(item.volume_ratio * 500, 100) + '%'"></div>
                    </div>
                </div>

                <!-- Component Bars -->
                <div class="px-4 pb-3 space-y-1.5">
                    <template x-for="comp in [
                        {key:'volume_anomaly', label:'Volume Anomaly', max:30, color:'bg-orange-500'},
                        {key:'price_stability', label:'Price Stability', max:25, color:'bg-amber-500'},
                        {key:'support_zone', label:'Support Zone', max:20, color:'bg-yellow-500'},
                        {key:'institutional', label:'Institutional', max:15, color:'bg-orange-400'},
                        {key:'smart_money', label:'Smart Money', max:10, color:'bg-orange-300'},
                    ]" :key="comp.key">
                        <div class="flex items-center gap-2">
                            <span class="text-[10px] text-gray-500 w-24 text-right truncate" x-text="comp.label"></span>
                            <div class="flex-1 h-1.5 bg-gray-900 rounded-full overflow-hidden">
                                <div class="h-full rounded-full transition-all duration-500"
                                     :class="comp.color"
                                     :style="'width:' + ((item.components[comp.key] || 0) / comp.max * 100) + '%'"></div>
                            </div>
                            <span class="text-[10px] text-gray-400 tabular-nums w-10 text-right"
                                  x-text="(item.components[comp.key] || 0).toFixed(1) + '/' + comp.max"></span>
                        </div>
                    </template>
                </div>

                <div class="border-t border-gray-700"></div>

                <!-- Context Grid -->
                <div class="px-4 py-3">
                    <div class="grid grid-cols-4 gap-2 text-center">
                        <div>
                            <p class="text-[10px] text-gray-500 uppercase">RSI</p>
                            <p class="text-xs font-semibold tabular-nums mt-0.5"
                               :class="item.rsi > 70 ? 'text-red-400' : item.rsi < 30 ? 'text-emerald-400' : 'text-gray-300'"
                               x-text="item.rsi != null ? item.rsi.toFixed(1) : '-'"></p>
                        </div>
                        <div>
                            <p class="text-[10px] text-gray-500 uppercase">Z-Score</p>
                            <p class="text-xs font-semibold tabular-nums mt-0.5"
                               :class="item.zscore < -1 ? 'text-emerald-400' : item.zscore > 1 ? 'text-red-400' : 'text-gray-300'"
                               x-text="item.zscore != null ? item.zscore.toFixed(2) : '-'"></p>
                        </div>
                        <div>
                            <p class="text-[10px] text-gray-500 uppercase">ML Trend</p>
                            <p class="text-xs font-semibold mt-0.5"
                               :class="item.ml_trend === 'bullish' ? 'text-emerald-400' : item.ml_trend === 'bearish' ? 'text-red-400' : 'text-gray-400'"
                               x-text="item.ml_trend || '-'"></p>
                        </div>
                        <div>
                            <p class="text-[10px] text-gray-500 uppercase">Regime</p>
                            <p class="text-xs font-semibold text-gray-300 mt-0.5 truncate" x-text="item.regime || '-'"></p>
                        </div>
                    </div>
                </div>

                <div class="border-t border-gray-700"></div>

                <!-- Price & Changes -->
                <div class="px-4 py-3 flex items-center justify-between">
                    <span class="text-xs text-gray-500">Price</span>
                    <span class="text-xs font-semibold text-white tabular-nums" x-text="fmtPrice(item.current_price_idr)"></span>
                    <div class="flex items-center gap-3">
                        <div class="text-right">
                            <p class="text-[10px] text-gray-500">1h</p>
                            <p class="text-xs font-semibold tabular-nums"
                               :class="(item.price_change_1h || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                               x-text="fmtChg(item.price_change_1h)"></p>
                        </div>
                        <div class="text-right">
                            <p class="text-[10px] text-gray-500">24h</p>
                            <p class="text-xs font-semibold tabular-nums"
                               :class="(item.price_change_24h || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                               x-text="fmtChg(item.price_change_24h)"></p>
                        </div>
                        <div class="text-right">
                            <p class="text-[10px] text-gray-500">7d</p>
                            <p class="text-xs font-semibold tabular-nums"
                               :class="(item.price_change_7d || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                               x-text="fmtChg(item.price_change_7d)"></p>
                        </div>
                    </div>
                </div>
            </div>
        </template>
    </div>

    <!-- Load More -->
    <div x-show="hasMore && !loading" x-cloak class="text-center pt-2">
        <button @click="loadMore()"
                class="px-6 py-2 text-sm font-medium bg-orange-600/20 hover:bg-orange-600/30 text-orange-400 border border-orange-700/50 rounded-lg transition">
            Load More
        </button>
    </div>

    <!-- Loading More -->
    <div x-show="loadingMore" x-cloak class="text-center py-4">
        <svg class="animate-spin h-5 w-5 text-orange-400 mx-auto" fill="none" viewBox="0 0 24 24">
            <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
            <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"></path>
        </svg>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
function whaleAccumulationPanel() {
    return {
        loading: false,
        loadingMore: false,
        error: null,
        items: [],
        page: 1,
        hasMore: false,
        filters: {
            signal: 'all',
            asset_type: '{{ asset_mode | default("all") }}',
            sort: 'score_desc',
        },
        stats: {
            total_analyzed: 0,
            heavy_count: 0,
            avg_volume_ratio: null,
            strongest_symbol: null,
        },

        async loadData() {
            this.loading = true;
            this.error = null;
            this.page = 1;
            try {
                const data = await this._fetch(1);
                this.items = data.items || [];
                this.hasMore = data.has_more || false;
                if (data.stats) this.stats = data.stats;
            } catch (e) {
                this.error = e.message;
                this.items = [];
            } finally {
                this.loading = false;
            }
        },

        async loadMore() {
            this.loadingMore = true;
            try {
                this.page++;
                const data = await this._fetch(this.page);
                this.items = this.items.concat(data.items || []);
                this.hasMore = data.has_more || false;
            } catch (e) {
                this.page--;
            } finally {
                this.loadingMore = false;
            }
        },

        async _fetch(pg) {
            const params = new URLSearchParams({
                asset_type: this.filters.asset_type,
                signal_filter: this.filters.signal,
                sort_by: this.filters.sort,
                page: pg,
                limit: 20,
            });
            const resp = await fetch(`/api/v1/market/screener/whale-accumulation?${params}`);
            if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
            return await resp.json();
        },

        signalBadge(sig) {
            const m = {
                'HEAVY_ACCUMULATION': 'bg-orange-900/60 text-orange-300 border border-orange-700/50',
                'ACCUMULATING': 'bg-amber-900/60 text-amber-300 border border-amber-700/50',
                'POSSIBLE': 'bg-gray-700/60 text-gray-300 border border-gray-600/50',
                'NONE': 'bg-gray-800/60 text-gray-500 border border-gray-700/50',
            };
            return m[sig] || m['NONE'];
        },

        signalLabel(sig) {
            const m = {
                'HEAVY_ACCUMULATION': 'Heavy',
                'ACCUMULATING': 'Accumulating',
                'POSSIBLE': 'Possible',
                'NONE': 'None',
            };
            return m[sig] || sig || '-';
        },

        fmtPrice(val) {
            if (val == null || isNaN(val)) return '-';
            const v = Number(val);
            if (v === 0) return '0';
            const abs = Math.abs(v);
            if (abs >= 1e12) return 'Rp ' + (v/1e12).toFixed(1) + 'T';
            if (abs >= 1e9) return 'Rp ' + (v/1e9).toFixed(1) + 'B';
            if (abs >= 100) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits:0}).format(v);
            if (abs >= 1) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits:2}).format(v);
            if (abs >= 0.01) return 'Rp ' + v.toFixed(4);
            return 'Rp ' + v.toFixed(8);
        },

        fmtChg(val) {
            if (val == null || isNaN(val)) return '-';
            const v = Number(val);
            return (v >= 0 ? '+' : '') + v.toFixed(2) + '%';
        },
    };
}
</script>
{% endblock %}