{% extends "base.html" %}
{% block title %}Ichimoku Cloud Scanner{% endblock %}

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

    <!-- Header -->
    <div class="flex flex-col sm:flex-row sm:items-center sm:justify-between gap-4">
        <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="M2.25 15a4.5 4.5 0 004.5 4.5H18a3.75 3.75 0 001.332-7.257 3 3 0 00-3.758-3.848 5.25 5.25 0 00-10.233 2.33A4.502 4.502 0 002.25 15z"/></svg>
                Ichimoku Cloud Scanner
            </h1>
            <p class="text-sm text-gray-400 mt-1">Multi-component trend analysis using Ichimoku Kinko Hyo system</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-koin-600 hover:bg-koin-500 text-white rounded-lg text-sm font-medium transition disabled:opacity-50">
                <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>

    <!-- Error State -->
    <div x-show="error" x-cloak class="bg-red-900/30 border border-red-700/50 rounded-xl p-4 text-sm text-red-300" x-text="error"></div>

    <!-- Loading State -->
    <div x-show="loading && items.length === 0" x-cloak class="text-center py-16">
        <svg class="animate-spin h-10 w-10 text-koin-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"/>
            <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4z"/>
        </svg>
        <p class="text-gray-400 mt-4">Scanning Ichimoku cloud signals...</p>
    </div>

    <!-- Summary Cards -->
    <div x-show="!loading || items.length > 0" x-cloak class="grid grid-cols-2 md:grid-cols-4 gap-4">
        <div class="bg-gray-800 border border-gray-700 rounded-xl p-4">
            <div class="text-xs text-gray-400 uppercase tracking-wider">Total Scanned</div>
            <div class="text-2xl font-bold text-white mt-1" x-text="items.length"></div>
        </div>
        <div class="bg-gray-800 border border-emerald-700/30 rounded-xl p-4">
            <div class="text-xs text-gray-400 uppercase tracking-wider">Strong Buy</div>
            <div class="text-2xl font-bold text-emerald-400 mt-1" x-text="signalCounts.strong_buy || 0"></div>
        </div>
        <div class="bg-gray-800 border border-green-700/30 rounded-xl p-4">
            <div class="text-xs text-gray-400 uppercase tracking-wider">Buy</div>
            <div class="text-2xl font-bold text-green-400 mt-1" x-text="signalCounts.buy || 0"></div>
        </div>
        <div class="bg-gray-800 border border-red-700/30 rounded-xl p-4">
            <div class="text-xs text-gray-400 uppercase tracking-wider">Sell / Strong Sell</div>
            <div class="text-2xl font-bold text-red-400 mt-1" x-text="(signalCounts.sell || 0) + (signalCounts.strong_sell || 0)"></div>
        </div>
    </div>

    <!-- Signal Distribution Bar -->
    <template x-if="items.length > 0">
        <div class="bg-gray-800 border border-gray-700 rounded-xl p-5">
            <h3 class="text-sm font-semibold text-gray-300 uppercase tracking-wider mb-3">Signal Distribution</h3>
            <div class="flex h-4 rounded-full overflow-hidden bg-gray-700">
                <div class="h-full bg-emerald-500 transition-all" :style="'width:' + pctOf('strong_buy') + '%'"></div>
                <div class="h-full bg-green-500 transition-all" :style="'width:' + pctOf('buy') + '%'"></div>
                <div class="h-full bg-gray-500 transition-all" :style="'width:' + pctOf('neutral') + '%'"></div>
                <div class="h-full bg-amber-500 transition-all" :style="'width:' + pctOf('sell') + '%'"></div>
                <div class="h-full bg-red-500 transition-all" :style="'width:' + pctOf('strong_sell') + '%'"></div>
            </div>
            <div class="flex flex-wrap gap-4 mt-3 text-[10px] text-gray-400">
                <span class="flex items-center gap-1"><span class="w-2 h-2 rounded-full bg-emerald-500"></span> Strong Buy</span>
                <span class="flex items-center gap-1"><span class="w-2 h-2 rounded-full bg-green-500"></span> Buy</span>
                <span class="flex items-center gap-1"><span class="w-2 h-2 rounded-full bg-gray-500"></span> Neutral</span>
                <span class="flex items-center gap-1"><span class="w-2 h-2 rounded-full bg-amber-500"></span> Sell</span>
                <span class="flex items-center gap-1"><span class="w-2 h-2 rounded-full bg-red-500"></span> Strong Sell</span>
            </div>
        </div>
    </template>

    <!-- Filter & Search -->
    <div x-show="!loading || items.length > 0" x-cloak class="flex flex-col sm:flex-row gap-3">
        <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-koin-500">
        </div>
        <div class="flex flex-wrap gap-2">
            <template x-for="f in ['all', 'strong_buy', 'buy', 'neutral', 'sell', 'strong_sell']" :key="f">
                <button @click="filterSignal = f === 'all' ? '' : f"
                        :class="(filterSignal === f || (f === 'all' && filterSignal === ''))
                            ? 'bg-koin-600 text-white' : 'bg-gray-800 text-gray-400 hover:bg-gray-700'"
                        class="px-3 py-1.5 text-xs font-medium rounded-lg transition capitalize"
                        x-text="f === 'all' ? 'All' : f.replace(/_/g, ' ')"></button>
            </template>
        </div>
    </div>

    <!-- Ichimoku Cards Grid -->
    <div x-show="!loading || items.length > 0" x-cloak>
        <div class="grid grid-cols-1 lg:grid-cols-2 gap-4">
            <template x-for="(item, idx) in filteredItems" :key="item.symbol + '-' + idx">
                <div class="bg-gray-800 border border-gray-700 rounded-xl p-5 hover:border-gray-600 transition">
                    <!-- Card Header -->
                    <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 text-xs font-bold text-white"
                                 x-text="(item.symbol || '??').substring(0, 2)"></div>
                            <div>
                                <div class="text-white font-bold text-sm" x-text="item.symbol || '-'"></div>
                                <div class="text-xs text-gray-500" x-text="item.coin_name || item.name || ''"></div>
                            </div>
                        </div>
                        <span class="px-2.5 py-1 text-xs font-bold rounded-full" :class="signalBadge(item.signal)"
                              x-text="(item.signal || '-').replace(/_/g, ' ').toUpperCase()"></span>
                    </div>

                    <!-- Score Ring + Breakdown -->
                    <div class="flex gap-5 mb-4">
                        <!-- Circular Score -->
                        <div class="flex-shrink-0 relative w-20 h-20">
                            <svg class="w-20 h-20 -rotate-90" viewBox="0 0 36 36">
                                <circle cx="18" cy="18" r="15.5" fill="none" stroke="currentColor" class="text-gray-700" stroke-width="3"/>
                                <circle cx="18" cy="18" r="15.5" fill="none" stroke="currentColor"
                                        :class="(item.score || 0) >= 70 ? 'text-emerald-500' : (item.score || 0) >= 40 ? 'text-amber-500' : 'text-red-500'"
                                        stroke-width="3" stroke-dasharray="97.4" :stroke-dashoffset="97.4 - (97.4 * (item.score || 0) / 100)"
                                        stroke-linecap="round"/>
                            </svg>
                            <div class="absolute inset-0 flex items-center justify-center">
                                <span class="text-lg font-bold text-white" x-text="Math.round(item.score || 0)"></span>
                            </div>
                        </div>

                        <!-- Score Breakdown -->
                        <div class="flex-1 space-y-2">
                            <template x-for="comp in [
                                {key: 'tk_cross', label: 'TK Cross'},
                                {key: 'cloud_position', label: 'Cloud Position'},
                                {key: 'chikou', label: 'Chikou Span'},
                                {key: 'cloud_trend', label: 'Cloud Trend'},
                                {key: 'cloud_thickness', label: 'Cloud Thickness'}
                            ]" :key="comp.key">
                                <div>
                                    <div class="flex justify-between text-[10px] mb-0.5">
                                        <span class="text-gray-400" x-text="comp.label"></span>
                                        <span class="text-gray-300" x-text="fmt(getComponentScore(item, comp.key), 0)"></span>
                                    </div>
                                    <div class="w-full bg-gray-700 rounded-full h-1.5">
                                        <div class="h-1.5 rounded-full transition-all"
                                             :class="getComponentScore(item, comp.key) >= 70 ? 'bg-emerald-500' : getComponentScore(item, comp.key) >= 40 ? 'bg-amber-500' : 'bg-red-500'"
                                             :style="`width: ${Math.min(getComponentScore(item, comp.key), 100)}%`"></div>
                                    </div>
                                </div>
                            </template>
                        </div>
                    </div>

                    <!-- Ichimoku Values -->
                    <div class="mb-4">
                        <div class="text-xs text-gray-400 uppercase tracking-wider mb-2">Ichimoku Values</div>
                        <div class="grid grid-cols-3 gap-2">
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Tenkan-sen</div>
                                <div class="text-xs font-medium text-gray-300 mt-0.5" x-text="fmtPrice(item.tenkan)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Kijun-sen</div>
                                <div class="text-xs font-medium text-gray-300 mt-0.5" x-text="fmtPrice(item.kijun)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Chikou</div>
                                <div class="text-xs font-medium text-gray-300 mt-0.5" x-text="fmtPrice(item.chikou)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Senkou A</div>
                                <div class="text-xs font-medium text-gray-300 mt-0.5" x-text="fmtPrice(item.senkou_a)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Senkou B</div>
                                <div class="text-xs font-medium text-gray-300 mt-0.5" x-text="fmtPrice(item.senkou_b)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">Current</div>
                                <div class="text-xs font-bold text-white mt-0.5" x-text="fmtPrice(item.current_price)"></div>
                            </div>
                        </div>
                    </div>

                    <!-- Status Badges Row -->
                    <div class="flex flex-wrap gap-2">
                        <!-- Cloud Color -->
                        <span class="px-2 py-0.5 text-[10px] font-medium rounded-full"
                              :class="(item.cloud_color || '').toLowerCase() === 'bullish' ? 'bg-emerald-900/50 text-emerald-400' : 'bg-red-900/50 text-red-400'"
                              x-text="'Cloud: ' + (item.cloud_color || '-')"></span>
                        <!-- Price vs Cloud -->
                        <span class="px-2 py-0.5 text-[10px] font-medium rounded-full"
                              :class="(item.price_vs_cloud || '').toLowerCase() === 'above' ? 'bg-emerald-900/50 text-emerald-400' :
                                      (item.price_vs_cloud || '').toLowerCase() === 'below' ? 'bg-red-900/50 text-red-400' : 'bg-gray-700/50 text-gray-400'"
                              x-text="'Price: ' + (item.price_vs_cloud || '-')"></span>
                        <!-- TK Cross -->
                        <span class="px-2 py-0.5 text-[10px] font-medium rounded-full"
                              :class="(item.tk_cross_status || '').toLowerCase() === 'bullish' ? 'bg-emerald-900/50 text-emerald-400' :
                                      (item.tk_cross_status || '').toLowerCase() === 'bearish' ? 'bg-red-900/50 text-red-400' : 'bg-gray-700/50 text-gray-400'"
                              x-text="'TK: ' + (item.tk_cross_status || '-')"></span>
                    </div>
                </div>
            </template>
        </div>

        <!-- Empty State -->
        <div x-show="filteredItems.length === 0 && !loading" 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="M9.75 9.75l4.5 4.5m0-4.5l-4.5 4.5M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
            <p class="text-gray-500">No Ichimoku signals found matching your filters</p>
        </div>
    </div>
</div>

<script>
function ichimokuApp() {
    return {
        loading: false, error: null, lastRefresh: null,
        items: [], search: '', filterSignal: '',

        get signalCounts() {
            const counts = {};
            this.items.forEach(i => {
                const sig = (i.signal || 'neutral').toLowerCase().replace(/ /g, '_');
                counts[sig] = (counts[sig] || 0) + 1;
            });
            return counts;
        },

        get filteredItems() {
            let list = [...this.items];
            if (this.search) {
                const q = this.search.toUpperCase();
                list = list.filter(i => (i.symbol || '').toUpperCase().includes(q));
            }
            if (this.filterSignal) {
                list = list.filter(i => (i.signal || '').toLowerCase().replace(/ /g, '_') === this.filterSignal);
            }
            list.sort((a, b) => (b.score || 0) - (a.score || 0));
            return list;
        },

        pctOf(signal) {
            if (this.items.length === 0) return 0;
            return ((this.signalCounts[signal] || 0) / this.items.length * 100);
        },

        signalBadge(signal) {
            const map = {
                'strong_buy': 'bg-emerald-900/50 text-emerald-400',
                'buy': 'bg-green-900/50 text-green-400',
                'neutral': 'bg-gray-700/50 text-gray-400',
                'sell': 'bg-amber-900/50 text-amber-400',
                'strong_sell': 'bg-red-900/50 text-red-400',
            };
            return map[(signal || '').toLowerCase().replace(/ /g, '_')] || 'bg-gray-700/50 text-gray-400';
        },

        getComponentScore(item, key) {
            if (item.components && item.components[key] != null) return item.components[key];
            if (item['score_' + key] != null) return item['score_' + key];
            if (item[key + '_score'] != null) return item[key + '_score'];
            return 0;
        },

        fmt(n, d=2) { return n != null ? Number(n).toFixed(d) : '-'; },
        fmtPct(n) { return n != null ? (n >= 0 ? '+' : '') + Number(n).toFixed(2) + '%' : '-'; },
        fmtPrice(n) {
            if (n == null) return '-';
            return Number(n).toLocaleString('id-ID', { minimumFractionDigits: 2, maximumFractionDigits: 6 });
        },

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

        async fetchData() {
            this.loading = true;
            this.error = null;
            try {
                const params = new URLSearchParams({ asset_type: '{{ asset_mode }}' });
                const res = await fetch(`/api/v1/market/ichimoku?${params}`);
                if (res.redirected) { window.location.href = '/auth/login'; return; }
                const json = await res.json();
                if (json.error) {
                    this.error = json.error;
                } else if (json.status === 'success' || json.items || json.results) {
                    this.items = json.items || json.results || json.data || [];
                    this.items.sort((a, b) => (b.score || 0) - (a.score || 0));
                } else {
                    this.error = json.message || 'Failed to load Ichimoku data';
                }
            } catch (e) {
                this.error = 'Failed to load data: ' + e.message;
            } finally {
                this.loading = false;
                this.lastRefresh = new Date().toLocaleTimeString('id-ID');
            }
        }
    };
}
</script>
{% endblock %}