{% extends "base.html" %}
{% block title %}Portfolio Stress Test{% endblock %}

{% block content %}
<div x-data="stressTestPanel()" x-init="fetchData()" class="space-y-5">
    <!-- Header -->
    <div class="flex items-center justify-between flex-wrap 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">
                    <span class="text-2xl">&#x1F6E1;&#xFE0F;</span>
                    Portfolio Stress Test
                </h1>
                <p class="text-sm text-gray-500 mt-0.5">Simulasi dampak skenario pasar ekstrem terhadap portofolio &mdash; identifikasi aset paling rentan.</p>
            </div>
        </div>
        <button @click="fetchData()" :disabled="loading"
                class="flex items-center gap-2 px-4 py-2 text-sm font-medium rounded-lg transition"
                :class="loading ? 'bg-gray-800 text-gray-500 cursor-not-allowed' : 'bg-rose-600 hover:bg-rose-700 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 ? 'Simulating...' : 'Refresh'"></span>
        </button>
    </div>

    <!-- Stats Summary -->
    <div class="grid grid-cols-2 md:grid-cols-4 gap-3">
        <div class="glass rounded-xl border border-gray-800 p-3">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Coins Analyzed</p>
            <p class="text-xl font-bold text-white mt-1" x-text="stats.coins_analyzed || 0"></p>
        </div>
        <div class="glass rounded-xl border border-gray-800 p-3">
            <p class="text-xs text-gray-500 uppercase tracking-wider">High Risk</p>
            <p class="text-xl font-bold text-rose-400 mt-1" x-text="stats.high_risk || 0"></p>
        </div>
        <div class="glass rounded-xl border border-gray-800 p-3">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Avg Drawdown</p>
            <p class="text-xl font-bold text-orange-400 mt-1" x-text="stats.avg_drawdown != null ? stats.avg_drawdown.toFixed(1) + '%' : '-'"></p>
        </div>
        <div class="glass rounded-xl border border-gray-800 p-3">
            <p class="text-xs text-gray-500 uppercase tracking-wider">Worst Case</p>
            <p class="text-xl font-bold text-red-500 mt-1" x-text="stats.worst_case != null ? stats.worst_case.toFixed(1) + '%' : '-'"></p>
        </div>
    </div>

    <!-- Filters & Sort -->
    <div class="flex flex-wrap items-center gap-2">
        <!-- Scenario -->
        <select x-model="filters.scenario" @change="fetchData()"
                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-rose-500">
            <option value="btc_crash">BTC Crash (-40%)</option>
            <option value="market_correction">Market Correction (-20%)</option>
            <option value="flash_crash">Flash Crash (-15%)</option>
            <option value="bear_market">Bear Market (-60%)</option>
            <option value="black_swan">Black Swan (-80%)</option>
        </select>

        <!-- Asset Type -->
        <select x-model="filters.asset_type" @change="fetchData()"
                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-rose-500">
            <option value="all">Semua Aset</option>
            <option value="crypto">Kripto</option>
            <option value="stock">Saham IDX</option>
            <option value="stock_us">Saham US</option>
        </select>

        <!-- Sort -->
        <select x-model="sortBy" @change="fetchData()"
                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-rose-500">
            <option value="risk">Risiko Tertinggi</option>
            <option value="drawdown">Drawdown Terbesar</option>
            <option value="recovery">Recovery Terlama</option>
            <option value="vulnerability">Vulnerability Tertinggi</option>
        </select>

        <!-- Search -->
        <div class="relative flex-1 min-w-[160px]">
            <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="searchQ" @input.debounce.300ms="fetchData()"
                   placeholder="Cari koin/saham..."
                   class="w-full bg-gray-800 border border-gray-700 rounded-lg pl-9 pr-3 py-1.5 text-sm text-gray-300 placeholder-gray-500 focus:outline-none focus:ring-1 focus:ring-rose-500">
        </div>
    </div>

    <!-- Scenario Info Banner -->
    <div class="glass rounded-xl border border-rose-900/40 p-4 bg-rose-950/20">
        <div class="flex items-center gap-3">
            <div class="p-2 rounded-lg bg-rose-900/30">
                <svg class="w-5 h-5 text-rose-400" fill="none" stroke="currentColor" stroke-width="1.5" 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>
            </div>
            <div>
                <p class="text-sm font-semibold text-rose-300" x-text="scenarioLabel()"></p>
                <p class="text-xs text-gray-500 mt-0.5" x-text="scenarioDesc()"></p>
            </div>
            <div class="ml-auto text-right">
                <p class="text-xs text-gray-500">Estimated Impact</p>
                <p class="text-lg font-bold text-rose-400" x-text="scenarioImpact()"></p>
            </div>
        </div>
    </div>

    <!-- Loading State -->
    <div x-show="loading" x-cloak class="text-center py-12">
        <svg class="animate-spin h-8 w-8 text-rose-500 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>
        <p class="text-gray-500 text-sm mt-3">Menjalankan simulasi stress test...</p>
    </div>

    <!-- Empty State -->
    <div x-show="!loading && items.length === 0" x-cloak
         class="text-center py-16 glass rounded-xl border border-gray-800">
        <svg class="mx-auto h-12 w-12 text-gray-600" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="M9 12.75L11.25 15 15 9.75m-3-7.036A11.959 11.959 0 013.598 6 11.99 11.99 0 003 9.749c0 5.592 3.824 10.29 9 11.623 5.176-1.332 9-6.03 9-11.622 0-1.31-.21-2.571-.598-3.751h-.152c-3.196 0-6.1-1.248-8.25-3.285z"/>
        </svg>
        <h3 class="mt-4 text-lg font-medium text-gray-400">Belum Ada Data Stress Test</h3>
        <p class="mt-2 text-sm text-gray-600 max-w-md mx-auto">
            Jalankan scan terlebih dahulu melalui
            <a href="/admin/workflow" class="text-rose-400 hover:text-rose-300">Pipeline Workflow</a>
            untuk menghasilkan data analisis risiko.
        </p>
    </div>

    <!-- Result Cards 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="glass rounded-xl border overflow-hidden animate-fadeIn transition"
                 :class="riskBorderClass(item.risk_level)"
                 :style="'animation-delay: ' + (idx * 50) + 'ms'">

                <!-- Card Header -->
                <div class="p-4 pb-3">
                    <div class="flex items-center justify-between">
                        <a :href="'/market/asset/' + item.asset_id" class="flex items-center gap-3 group">
                            <img :src="item.icon_thumb_url || (item.asset_type==='stock' && item.symbol ? __stockIconUrl(item.symbol) : '')" :data-symbol="item.symbol" class="w-10 h-10 rounded-full flex-shrink-0" loading="lazy" onerror="__iconError(this)" x-show="item.icon_thumb_url || item.asset_type==='stock'">
                            <span x-show="!item.icon_thumb_url && item.asset_type!=='stock'" class="w-10 h-10 rounded-full bg-gray-700 flex items-center justify-center text-sm text-gray-400 flex-shrink-0" x-text="(item.symbol || '?')[0].toUpperCase()"></span>
                            <div>
                                <span class="text-white font-semibold group-hover:text-rose-400 transition" x-text="item.name"></span>
                                <div class="flex items-center gap-2 mt-0.5">
                                    <span class="text-xs text-gray-500 font-mono" x-text="item.symbol ? item.symbol.toUpperCase() : '-'"></span>
                                    <span class="text-[10px] px-1.5 py-0.5 rounded font-semibold uppercase tracking-wider"
                                          :class="riskBadgeClass(item.risk_level)"
                                          x-text="riskLabel(item.risk_level)"></span>
                                </div>
                            </div>
                        </a>
                        <!-- Drawdown Score -->
                        <div class="text-right">
                            <div class="text-2xl font-bold tabular-nums"
                                 :class="drawdownColor(item.estimated_drawdown_pct)"
                                 x-text="item.estimated_drawdown_pct != null ? item.estimated_drawdown_pct.toFixed(1) + '%' : '-'"></div>
                            <div class="text-[10px] text-gray-500">Est. Drawdown</div>
                        </div>
                    </div>
                    <!-- Price Row -->
                    <div class="flex items-center justify-between mt-2 text-sm">
                        <span class="text-gray-400" x-text="fmtPrice(item.current_price_idr)"></span>
                        <div class="flex items-center gap-2 text-xs">
                            <span :class="(item.price_change_24h || 0) >= 0 ? 'text-emerald-400' : 'text-red-400'"
                                  x-text="fmtPct(item.price_change_24h)"></span>
                            <span class="text-gray-600">24h</span>
                        </div>
                    </div>
                </div>

                <!-- Estimated Impact Section -->
                <div class="mx-4 mb-3 bg-rose-950/20 border border-rose-900/30 rounded-lg p-3">
                    <div class="text-[10px] font-semibold text-rose-500 uppercase tracking-wider mb-2">Dampak Skenario</div>
                    <div class="grid grid-cols-3 gap-2 text-center">
                        <div>
                            <div class="text-[10px] text-gray-500">Est. Drawdown</div>
                            <div class="text-sm font-medium"
                                 :class="drawdownColor(item.estimated_drawdown_pct)"
                                 x-text="item.estimated_drawdown_pct != null ? item.estimated_drawdown_pct.toFixed(1) + '%' : '-'"></div>
                        </div>
                        <div>
                            <div class="text-[10px] text-gray-500">Recovery Est.</div>
                            <div class="text-sm font-medium text-amber-300"
                                 x-text="item.recovery_time_est ? item.recovery_time_est + ' hari' : '-'"></div>
                        </div>
                        <div>
                            <div class="text-[10px] text-gray-500">Max Loss</div>
                            <div class="text-sm font-medium text-red-400"
                                 x-text="item.max_loss_pct != null ? item.max_loss_pct.toFixed(1) + '%' : '-'"></div>
                        </div>
                    </div>
                    <!-- Est. Price After -->
                    <div class="flex justify-between mt-2 text-[10px] text-gray-500">
                        <span x-text="item.current_price_idr ? 'Harga Saat Ini: ' + fmtPrice(item.current_price_idr) : ''"></span>
                        <span x-text="item.est_price_after ? 'Est. Setelah: ' + fmtPrice(item.est_price_after) : ''"></span>
                    </div>
                </div>

                <!-- Vulnerability Bars -->
                <div class="mx-4 mb-3">
                    <div class="text-[10px] font-semibold text-gray-500 uppercase tracking-wider mb-2">Vulnerability Factors</div>
                    <div class="space-y-1.5">
                        <template x-for="vf in vulnerabilityList(item)" :key="vf.key">
                            <div class="flex items-center gap-2">
                                <span class="text-[10px] text-gray-400 w-24 truncate" x-text="vf.label"></span>
                                <div class="flex-1 h-2 bg-gray-800 rounded-full overflow-hidden">
                                    <div class="h-full rounded-full transition-all duration-500"
                                         :class="vf.color"
                                         :style="'width: ' + Math.min(vf.value, 100) + '%'"></div>
                                </div>
                                <span class="text-[10px] text-gray-400 w-10 text-right tabular-nums"
                                      x-text="vf.value.toFixed(0) + '%'"></span>
                            </div>
                        </template>
                    </div>
                </div>

                <!-- Metrics Row -->
                <div class="px-4 pb-3">
                    <div class="grid grid-cols-4 gap-2 text-center">
                        <div class="bg-gray-800/50 rounded-lg py-1.5">
                            <div class="text-[10px] text-gray-500">Beta</div>
                            <div class="text-[11px] font-medium text-white" x-text="item.beta != null ? item.beta.toFixed(2) : '-'"></div>
                        </div>
                        <div class="bg-gray-800/50 rounded-lg py-1.5">
                            <div class="text-[10px] text-gray-500">Volatilitas</div>
                            <div class="text-[11px] font-medium"
                                 :class="(item.volatility || 0) > 50 ? 'text-red-400' : 'text-gray-400'"
                                 x-text="item.volatility != null ? item.volatility.toFixed(1) + '%' : '-'"></div>
                        </div>
                        <div class="bg-gray-800/50 rounded-lg py-1.5">
                            <div class="text-[10px] text-gray-500">Korelasi BTC</div>
                            <div class="text-[11px] font-medium text-cyan-400"
                                 x-text="item.btc_correlation != null ? item.btc_correlation.toFixed(2) : '-'"></div>
                        </div>
                        <div class="bg-gray-800/50 rounded-lg py-1.5">
                            <div class="text-[10px] text-gray-500">Likuiditas</div>
                            <div class="text-[11px] font-medium"
                                 :class="liquidityColor(item.liquidity_score)"
                                 x-text="item.liquidity_score != null ? item.liquidity_score.toFixed(0) : '-'"></div>
                        </div>
                    </div>

                    <!-- Historical Stress -->
                    <div class="flex items-center justify-between mt-2">
                        <div class="flex gap-1">
                            <span x-show="item.survived_2022_bear" class="text-[10px] px-1.5 py-0.5 rounded bg-emerald-900/30 text-emerald-400 border border-emerald-900/30">Survived 2022</span>
                            <span x-show="item.high_correlation" class="text-[10px] px-1.5 py-0.5 rounded bg-red-900/30 text-red-400 border border-red-900/30">High Corr</span>
                            <span x-show="item.low_liquidity" class="text-[10px] px-1.5 py-0.5 rounded bg-orange-900/30 text-orange-400 border border-orange-900/30">Low Liq</span>
                            <span x-show="item.high_beta" class="text-[10px] px-1.5 py-0.5 rounded bg-rose-900/30 text-rose-400 border border-rose-900/30">High Beta</span>
                        </div>
                        <span class="text-[10px] text-gray-600" x-text="item.market_cap_rank ? '#' + item.market_cap_rank : ''"></span>
                    </div>
                </div>
            </div>
        </template>
    </div>

    <!-- Load More -->
    <div x-show="!loading && hasMore" x-cloak class="text-center pt-2 pb-4">
        <button @click="loadMore()" :disabled="loadingMore"
                class="px-6 py-2 text-sm font-medium rounded-lg bg-gray-800 border border-gray-700 text-gray-300 hover:bg-gray-700 transition">
            <span x-text="loadingMore ? 'Loading...' : 'Muat Lebih Banyak (' + (total - items.length) + ' lagi)'"></span>
        </button>
    </div>
</div>
{% endblock %}

{% block scripts %}
<script>
function stressTestPanel() {
    return {
        items: [],
        loading: false,
        loadingMore: false,
        total: 0,
        hasMore: false,
        page: 1,
        filters: {
            asset_type: '{{ asset_mode }}',
            scenario: 'btc_crash',
        },
        sortBy: 'risk',
        searchQ: '',
        stats: { coins_analyzed: 0, high_risk: 0, avg_drawdown: null, worst_case: null },

        async fetchData() {
            this.page = 1;
            this.loading = true;
            try {
                const data = await this._fetch(1);
                this.items = data.items || [];
                this.total = data.total || 0;
                this.hasMore = data.has_more || false;
                this.stats = data.stats || this.computeStats();
            } catch (e) {
                console.error('Fetch error:', e);
            } finally {
                this.loading = false;
            }
        },

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

        async _fetch(page) {
            const params = new URLSearchParams({
                asset_type: this.filters.asset_type,
                scenario: this.filters.scenario,
                sort: this.sortBy,
                limit: '20',
                page: page,
                q: this.searchQ,
            });
            const resp = await fetch(`/api/v1/market/stress-test?${params}`);
            if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
            return await resp.json();
        },

        computeStats() {
            if (!this.items.length) return { coins_analyzed: 0, high_risk: 0, avg_drawdown: null, worst_case: null };
            const dds = this.items.filter(i => i.estimated_drawdown_pct != null).map(i => i.estimated_drawdown_pct);
            return {
                coins_analyzed: this.total,
                high_risk: this.items.filter(i => i.risk_level === 'high' || i.risk_level === 'critical').length,
                avg_drawdown: dds.length ? dds.reduce((a, b) => a + b, 0) / dds.length : null,
                worst_case: dds.length ? Math.min(...dds) : null,
            };
        },

        scenarioLabel() {
            const labels = {
                btc_crash: 'Skenario: BTC Crash (-40%)',
                market_correction: 'Skenario: Market Correction (-20%)',
                flash_crash: 'Skenario: Flash Crash (-15%)',
                bear_market: 'Skenario: Bear Market (-60%)',
                black_swan: 'Skenario: Black Swan (-80%)',
            };
            return labels[this.filters.scenario] || this.filters.scenario;
        },

        scenarioDesc() {
            const descs = {
                btc_crash: 'Simulasi penurunan BTC sebesar 40% dan dampaknya pada altcoin berkorelasi tinggi.',
                market_correction: 'Koreksi pasar menyeluruh sebesar 20%, menguji resiliensi portofolio.',
                flash_crash: 'Flash crash mendadak 15% dalam waktu singkat, menguji likuiditas.',
                bear_market: 'Bear market berkepanjangan dengan penurunan 60% secara bertahap.',
                black_swan: 'Kejadian black swan dengan penurunan 80%, skenario terburuk.',
            };
            return descs[this.filters.scenario] || '';
        },

        scenarioImpact() {
            const impacts = { btc_crash: '-40%', market_correction: '-20%', flash_crash: '-15%', bear_market: '-60%', black_swan: '-80%' };
            return impacts[this.filters.scenario] || '-';
        },

        riskBorderClass(level) {
            return {
                critical: 'border-red-800/60 hover:border-red-700',
                high: 'border-rose-800/60 hover:border-rose-700',
                medium: 'border-orange-800/60 hover:border-orange-700',
                low: 'border-emerald-800/60 hover:border-emerald-700',
            }[level] || 'border-gray-800 hover:border-gray-700';
        },

        riskBadgeClass(level) {
            return {
                critical: 'bg-red-900/50 text-red-400 border border-red-800/50',
                high: 'bg-rose-900/50 text-rose-400 border border-rose-800/50',
                medium: 'bg-orange-900/50 text-orange-400 border border-orange-800/50',
                low: 'bg-emerald-900/50 text-emerald-400 border border-emerald-800/50',
            }[level] || 'bg-gray-800 text-gray-500';
        },

        riskLabel(level) {
            return { critical: 'Critical', high: 'High Risk', medium: 'Medium', low: 'Low Risk' }[level] || level || '-';
        },

        drawdownColor(pct) {
            if (pct == null) return 'text-gray-400';
            const abs = Math.abs(pct);
            if (abs >= 60) return 'text-red-500';
            if (abs >= 40) return 'text-rose-400';
            if (abs >= 20) return 'text-orange-400';
            return 'text-amber-400';
        },

        liquidityColor(score) {
            if (score == null) return 'text-gray-400';
            if (score >= 70) return 'text-emerald-400';
            if (score >= 40) return 'text-amber-400';
            return 'text-red-400';
        },

        vulnerabilityList(item) {
            const v = item.vulnerability || {};
            return [
                { key: 'market', label: 'Market Risk', value: v.market_risk || 0, color: 'bg-rose-500' },
                { key: 'liquidity', label: 'Liquidity Risk', value: v.liquidity_risk || 0, color: 'bg-orange-500' },
                { key: 'correlation', label: 'Correlation', value: v.correlation_risk || 0, color: 'bg-red-500' },
                { key: 'volatility', label: 'Volatility', value: v.volatility_risk || 0, color: 'bg-amber-500' },
                { key: 'concentration', label: 'Concentration', value: v.concentration_risk || 0, color: 'bg-pink-500' },
            ];
        },

        fmtPrice(v) {
            if (v == null || isNaN(v)) return '-';
            const val = Number(v);
            if (val === 0) return 'Rp 0';
            const abs = Math.abs(val);
            if (abs >= 1_000_000_000_000) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 1}).format(val / 1_000_000_000_000) + 'T';
            if (abs >= 1_000_000_000) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 1}).format(val / 1_000_000_000) + 'B';
            if (abs >= 100) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 0}).format(val);
            if (abs >= 1) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 2}).format(val);
            if (abs >= 0.01) return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 4}).format(val);
            return 'Rp ' + new Intl.NumberFormat('id-ID', {maximumFractionDigits: 8}).format(val);
        },

        fmtPct(v) { return v != null ? (v >= 0 ? '+' : '') + Number(v).toFixed(1) + '%' : '-'; },

        formatNumber(val) {
            if (val == null || isNaN(val)) return '-';
            return new Intl.NumberFormat('id-ID').format(Number(val));
        },
    };
}
</script>
{% endblock %}