{% extends "base.html" %}
{% block title %}Liquidation Heatmap{% endblock %}

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

    <!-- Header -->
    <div class="flex items-center justify-between flex-wrap gap-3">
        <div>
            <h1 class="text-2xl font-bold text-white flex items-center gap-2">
                <svg class="w-7 h-7 text-koin-400" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24">
                    <path stroke-linecap="round" stroke-linejoin="round" d="M15.362 5.214A8.252 8.252 0 0112 21 8.25 8.25 0 016.038 7.048 8.287 8.287 0 009 9.6a8.983 8.983 0 013.361-6.867 8.21 8.21 0 003 2.48z"/>
                    <path stroke-linecap="round" stroke-linejoin="round" d="M12 18a3.75 3.75 0 00.495-7.467 5.99 5.99 0 00-1.925 3.546 5.974 5.974 0 01-2.133-1A3.75 3.75 0 0012 18z"/>
                </svg>
                Liquidation Heatmap
            </h1>
            <p class="mt-1 text-sm text-gray-400">Identify liquidation clusters, squeeze risk zones, and magnetic price levels</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 text-sm bg-koin-600 hover:bg-koin-500 text-white rounded-lg transition disabled:opacity-50 font-medium">
                <span x-show="!loading">Refresh</span>
                <span x-show="loading" class="flex items-center gap-1">
                    <svg class="animate-spin w-4 h-4" 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>
                    Loading
                </span>
            </button>
        </div>
    </div>

    <!-- Loading -->
    <div x-show="loading" x-cloak 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 12h4z"/>
            </svg>
            <p class="text-sm text-gray-500">Scanning liquidation zones...</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 && data" x-cloak>

        <!-- Summary Cards -->
        <div class="grid grid-cols-2 md:grid-cols-4 gap-4 mb-6">
            <div class="bg-gray-800 border border-gray-700 rounded-xl p-5">
                <p class="text-xs text-gray-400 uppercase tracking-wider">Total Analyzed</p>
                <p class="text-2xl font-bold text-white mt-1" x-text="data.total_analyzed || 0"></p>
            </div>
            <div class="bg-gray-800 border border-gray-700 rounded-xl p-5">
                <p class="text-xs text-gray-400 uppercase tracking-wider">High Squeeze Risk</p>
                <p class="text-2xl font-bold text-red-400 mt-1" x-text="data.high_squeeze_count || 0"></p>
            </div>
            <div class="bg-gray-800 border border-gray-700 rounded-xl p-5">
                <p class="text-xs text-gray-400 uppercase tracking-wider">Avg Risk Score</p>
                <p class="text-2xl font-bold mt-1" :class="(data.avg_risk_score||0) >= 70 ? 'text-red-400' : (data.avg_risk_score||0) >= 40 ? 'text-amber-400' : 'text-emerald-400'"
                   x-text="fmt(data.avg_risk_score)"></p>
            </div>
            <div class="bg-gray-800 border border-gray-700 rounded-xl p-5">
                <p class="text-xs text-gray-400 uppercase tracking-wider">Magnetic Zones</p>
                <p class="text-2xl font-bold text-koin-400 mt-1" x-text="data.magnetic_zones_count || 0"></p>
            </div>
        </div>

        <!-- Info Box -->
        <div class="bg-koin-900/15 border border-koin-700/25 rounded-xl p-4 mb-6">
            <div class="flex items-start gap-3">
                <svg class="w-5 h-5 text-koin-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-koin-300">What Are Liquidation Cascades?</h4>
                    <p class="text-xs text-gray-400 mt-1">When leveraged positions get liquidated, they create forced sell/buy orders that push price further, triggering more liquidations. Price gets "attracted" to zones with heavy liquidation clusters (magnetic zones). High squeeze risk means the current price is close to a dense cluster of liquidations that could trigger a cascade move.</p>
                </div>
            </div>
        </div>

        <!-- Filters -->
        <div class="flex flex-wrap items-center gap-3 mb-6">
            <select x-model="filterRisk" 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-koin-500">
                <option value="all">All Risk Levels</option>
                <option value="high">High Risk</option>
                <option value="medium">Medium Risk</option>
                <option value="low">Low Risk</option>
            </select>
            <select x-model="filterType" 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-koin-500">
                <option value="all">All Types</option>
                <option value="long">Long Liquidations</option>
                <option value="short">Short Liquidations</option>
            </select>
            <span class="text-xs text-gray-500" x-text="'Showing ' + filtered.length + ' of ' + items.length"></span>
        </div>

        <!-- Card Grid -->
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
            <template x-for="(c, idx) in filtered" :key="c.symbol || idx">
                <div class="bg-gray-800 border border-gray-700 rounded-xl p-5 hover:border-gray-600 transition"
                     :style="'animation-delay:' + (idx*40) + 'ms'">

                    <!-- Coin Header + Risk Score -->
                    <div class="flex items-center justify-between mb-3">
                        <div class="flex items-center gap-2">
                            <span class="text-white font-bold text-base" x-text="c.symbol"></span>
                            <span class="text-xs px-2 py-0.5 rounded-full font-semibold"
                                  :class="squeezeClass(c.squeeze_probability)"
                                  x-text="(c.squeeze_probability || 'low').toUpperCase()"></span>
                        </div>
                        <div class="text-right">
                            <span class="text-xl font-extrabold tabular-nums"
                                  :class="(c.risk_score||0) >= 70 ? 'text-red-400' : (c.risk_score||0) >= 40 ? 'text-amber-400' : 'text-emerald-400'"
                                  x-text="fmt(c.risk_score, 0)"></span>
                            <span class="text-[10px] text-gray-500 block">risk score</span>
                        </div>
                    </div>

                    <!-- Risk Score Bar -->
                    <div class="w-full h-2 bg-gray-900 rounded-full overflow-hidden mb-4">
                        <div class="h-full rounded-full transition-all"
                             :class="(c.risk_score||0) >= 70 ? 'bg-red-500' : (c.risk_score||0) >= 40 ? 'bg-amber-500' : 'bg-emerald-500'"
                             :style="'width:' + Math.min(c.risk_score || 0, 100) + '%'"></div>
                    </div>

                    <!-- Current Price Marker -->
                    <div class="flex items-center gap-2 mb-3 px-2 py-1.5 bg-gray-900/60 rounded-lg">
                        <span class="text-[10px] text-gray-500 uppercase tracking-wider">Current Price</span>
                        <span class="text-sm font-bold text-white tabular-nums" x-text="fmtPrice(c.current_price)"></span>
                    </div>

                    <!-- Short Liquidation Zones (above price) -->
                    <div x-show="(c.short_liquidations || []).length > 0" class="mb-3">
                        <p class="text-[10px] text-emerald-400 uppercase tracking-wider font-semibold mb-1.5">Short Liquidation Zones (Above Price)</p>
                        <div class="space-y-1">
                            <template x-for="z in (c.short_liquidations || []).slice(0,4)" :key="z.price">
                                <div class="flex items-center gap-2">
                                    <span class="text-xs text-gray-300 w-24 tabular-nums" x-text="fmtPrice(z.price)"></span>
                                    <div class="flex-1 h-2 bg-gray-900 rounded-full overflow-hidden">
                                        <div class="h-full bg-emerald-500/70 rounded-full" :style="'width:' + Math.min((z.volume_pct||0), 100) + '%'"></div>
                                    </div>
                                    <span class="text-[10px] text-gray-500 w-10 text-right tabular-nums" x-text="fmt(z.volume_pct,0) + '%'"></span>
                                </div>
                            </template>
                        </div>
                    </div>

                    <!-- Long Liquidation Zones (below price) -->
                    <div x-show="(c.long_liquidations || []).length > 0" class="mb-3">
                        <p class="text-[10px] text-red-400 uppercase tracking-wider font-semibold mb-1.5">Long Liquidation Zones (Below Price)</p>
                        <div class="space-y-1">
                            <template x-for="z in (c.long_liquidations || []).slice(0,4)" :key="z.price">
                                <div class="flex items-center gap-2">
                                    <span class="text-xs text-gray-300 w-24 tabular-nums" x-text="fmtPrice(z.price)"></span>
                                    <div class="flex-1 h-2 bg-gray-900 rounded-full overflow-hidden">
                                        <div class="h-full bg-red-500/70 rounded-full" :style="'width:' + Math.min((z.volume_pct||0), 100) + '%'"></div>
                                    </div>
                                    <span class="text-[10px] text-gray-500 w-10 text-right tabular-nums" x-text="fmt(z.volume_pct,0) + '%'"></span>
                                </div>
                            </template>
                        </div>
                    </div>

                    <!-- Magnetic Zones -->
                    <div x-show="(c.magnetic_zones || []).length > 0" class="mb-3">
                        <p class="text-[10px] text-koin-400 uppercase tracking-wider font-semibold mb-1.5">Magnetic Zones (Strongest Clusters)</p>
                        <div class="flex flex-wrap gap-1.5">
                            <template x-for="mz in (c.magnetic_zones || []).slice(0,5)" :key="mz.price">
                                <span class="text-[10px] px-2 py-0.5 rounded-full font-mono tabular-nums border"
                                      :class="(mz.strength||'') === 'high' ? 'bg-koin-900/30 text-koin-300 border-koin-700/40' : (mz.strength||'') === 'medium' ? 'bg-amber-900/30 text-amber-300 border-amber-700/40' : 'bg-gray-800 text-gray-400 border-gray-700'"
                                      x-text="fmtPrice(mz.price) + ' (' + (mz.strength || 'low') + ')'"></span>
                            </template>
                        </div>
                    </div>

                    <!-- Key Insight -->
                    <div x-show="c.insight" class="mt-3 pt-3 border-t border-gray-700/50">
                        <p class="text-xs text-gray-400 italic" x-text="c.insight"></p>
                    </div>
                </div>
            </template>
        </div>

        <!-- Empty -->
        <div x-show="filtered.length === 0 && items.length > 0" class="text-center py-12">
            <p class="text-gray-500 text-sm">No items match current filters.</p>
        </div>
    </div>

    <!-- Empty State -->
    <div x-show="!loading && !error && !data" x-cloak class="text-center py-16 bg-gray-800 border border-gray-700 rounded-xl">
        <svg class="mx-auto h-12 w-12 text-gray-600 mb-4" fill="none" stroke="currentColor" stroke-width="1.5" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" d="M15.362 5.214A8.252 8.252 0 0112 21 8.25 8.25 0 016.038 7.048 8.287 8.287 0 009 9.6a8.983 8.983 0 013.361-6.867 8.21 8.21 0 003 2.48z"/>
        </svg>
        <h3 class="text-lg font-medium text-gray-400">No Liquidation Data</h3>
        <p class="mt-2 text-sm text-gray-600">Run analysis via <a href="/admin/workflow" class="text-koin-400 hover:text-koin-300">Pipeline Workflow</a> first.</p>
    </div>
</div>

<script>
function liquidationHeatmapApp() {
    return {
        loading: false,
        error: null,
        lastRefresh: null,
        data: null,
        items: [],
        filterRisk: 'all',
        filterType: 'all',

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

        async fetchData() {
            this.loading = true;
            this.error = null;
            try {
                const res = await fetch('/api/v1/market/liquidation-heatmap?asset_type={{ asset_mode }}');
                if (res.redirected) { window.location.href = res.url; return; }
                const json = await res.json();
                if (json.error) { this.error = json.error; }
                else {
                    this.data = json.data || json;
                    this.items = this.data.items || this.data.results || [];
                }
            } catch (e) {
                this.error = e.message;
            } finally {
                this.loading = false;
                this.lastRefresh = new Date().toLocaleTimeString('id-ID');
            }
        },

        get filtered() {
            let list = [...this.items];
            if (this.filterRisk !== 'all') {
                list = list.filter(i => (i.squeeze_probability || 'low').toLowerCase() === this.filterRisk);
            }
            if (this.filterType === 'long') {
                list = list.filter(i => (i.long_liquidations || []).length > 0);
            } else if (this.filterType === 'short') {
                list = list.filter(i => (i.short_liquidations || []).length > 0);
            }
            return list;
        },

        squeezeClass(prob) {
            const p = (prob || '').toLowerCase();
            if (p === 'high') return 'bg-red-900/50 text-red-400';
            if (p === 'medium') return 'bg-amber-900/50 text-amber-400';
            return 'bg-emerald-900/50 text-emerald-400';
        },

        fmt(n, d=1) { return n != null ? Number(n).toFixed(d) : '-'; },
        fmtPrice(v) { return v != null ? 'Rp ' + Number(v).toLocaleString('id-ID') : '-'; },
    };
}
</script>
{% endblock %}