{% extends "base.html" %}
{% block title %}Harmonic Pattern Scanner{% endblock %}

{% block content %}
<div x-data="harmonicPatternsApp()" 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="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 1.5M9 11.25v1.5M12 9v3.75m3-6v6"/></svg>
                Harmonic Pattern Scanner
            </h1>
            <p class="text-sm text-gray-400 mt-1">Detect Gartley, Butterfly, Bat, Crab &amp; Shark patterns with Fibonacci validation</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">Scan All</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>
                    Scanning
                </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 for harmonic patterns...</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 Patterns</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">Bullish Patterns</div>
            <div class="text-2xl font-bold text-emerald-400 mt-1" x-text="bullishCount"></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">Bearish Patterns</div>
            <div class="text-2xl font-bold text-red-400 mt-1" x-text="bearishCount"></div>
        </div>
        <div class="bg-gray-800 border border-koin-700/30 rounded-xl p-4">
            <div class="text-xs text-gray-400 uppercase tracking-wider">Avg Reliability</div>
            <div class="text-2xl font-bold text-koin-400 mt-1" x-text="avgReliability.toFixed(1) + '%'"></div>
        </div>
    </div>

    <!-- Pattern Type Distribution -->
    <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-4">Pattern Distribution</h3>
            <div class="grid grid-cols-2 sm:grid-cols-5 gap-3">
                <div class="bg-blue-900/20 border border-blue-800/30 rounded-lg p-3 text-center">
                    <div class="text-[10px] text-gray-400 uppercase">Gartley</div>
                    <div class="text-xl font-bold text-blue-400 mt-1" x-text="patternDist.gartley || 0"></div>
                </div>
                <div class="bg-purple-900/20 border border-purple-800/30 rounded-lg p-3 text-center">
                    <div class="text-[10px] text-gray-400 uppercase">Butterfly</div>
                    <div class="text-xl font-bold text-purple-400 mt-1" x-text="patternDist.butterfly || 0"></div>
                </div>
                <div class="bg-amber-900/20 border border-amber-800/30 rounded-lg p-3 text-center">
                    <div class="text-[10px] text-gray-400 uppercase">Bat</div>
                    <div class="text-xl font-bold text-amber-400 mt-1" x-text="patternDist.bat || 0"></div>
                </div>
                <div class="bg-red-900/20 border border-red-800/30 rounded-lg p-3 text-center">
                    <div class="text-[10px] text-gray-400 uppercase">Crab</div>
                    <div class="text-xl font-bold text-red-400 mt-1" x-text="patternDist.crab || 0"></div>
                </div>
                <div class="bg-cyan-900/20 border border-cyan-800/30 rounded-lg p-3 text-center">
                    <div class="text-[10px] text-gray-400 uppercase">Shark</div>
                    <div class="text-xl font-bold text-cyan-400 mt-1" x-text="patternDist.shark || 0"></div>
                </div>
            </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>
        <select x-model="filterPattern" class="bg-gray-800 border border-gray-700 text-gray-300 text-sm rounded-lg px-3 py-2">
            <option value="">All Patterns</option>
            <option value="gartley">Gartley</option>
            <option value="butterfly">Butterfly</option>
            <option value="bat">Bat</option>
            <option value="crab">Crab</option>
            <option value="shark">Shark</option>
        </select>
        <select x-model="filterDirection" class="bg-gray-800 border border-gray-700 text-gray-300 text-sm rounded-lg px-3 py-2">
            <option value="">All Directions</option>
            <option value="bullish">Bullish</option>
            <option value="bearish">Bearish</option>
        </select>
    </div>

    <!-- Pattern Cards Grid -->
    <div x-show="!loading || items.length > 0" x-cloak>
        <div class="grid grid-cols-1 lg:grid-cols-2 xl:grid-cols-3 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="patternBadge(item.pattern_type)"
                              x-text="(item.pattern_type || '-').toUpperCase()"></span>
                    </div>

                    <!-- Direction Badge -->
                    <div class="flex items-center gap-2 mb-3">
                        <span class="px-2 py-0.5 text-xs font-medium rounded-full"
                              :class="(item.direction || '').toLowerCase() === 'bullish' ? 'bg-emerald-900/50 text-emerald-400' : 'bg-red-900/50 text-red-400'"
                              x-text="(item.direction || '-').toUpperCase()"></span>
                        <span class="text-xs text-gray-500" x-text="'Completion: ' + fmt(item.completion_pct, 1) + '%'"></span>
                    </div>

                    <!-- Completion Progress Bar -->
                    <div class="mb-4">
                        <div class="flex items-center justify-between text-xs mb-1">
                            <span class="text-gray-400">Pattern Completion</span>
                            <span class="text-white font-medium" x-text="fmt(item.completion_pct, 1) + '%'"></span>
                        </div>
                        <div class="w-full bg-gray-700 rounded-full h-2">
                            <div class="h-2 rounded-full transition-all"
                                 :class="(item.completion_pct || 0) >= 80 ? 'bg-emerald-500' : (item.completion_pct || 0) >= 50 ? 'bg-amber-500' : 'bg-gray-500'"
                                 :style="`width: ${Math.min(item.completion_pct || 0, 100)}%`"></div>
                        </div>
                    </div>

                    <!-- Reliability Score -->
                    <div class="mb-4">
                        <div class="flex items-center justify-between text-xs mb-1">
                            <span class="text-gray-400">Reliability Score</span>
                            <span class="font-medium" :class="(item.reliability || 0) >= 70 ? 'text-emerald-400' : (item.reliability || 0) >= 50 ? 'text-amber-400' : 'text-red-400'"
                                  x-text="fmt(item.reliability, 1) + '%'"></span>
                        </div>
                        <div class="w-full bg-gray-700 rounded-full h-2">
                            <div class="h-2 rounded-full transition-all"
                                 :class="(item.reliability || 0) >= 70 ? 'bg-emerald-500' : (item.reliability || 0) >= 50 ? 'bg-amber-500' : 'bg-red-500'"
                                 :style="`width: ${Math.min(item.reliability || 0, 100)}%`"></div>
                        </div>
                    </div>

                    <!-- Swing Points -->
                    <div class="mb-4">
                        <div class="text-xs text-gray-400 uppercase tracking-wider mb-2">Swing Points</div>
                        <div class="grid grid-cols-5 gap-1">
                            <template x-for="point in ['X', 'A', 'B', 'C', 'D']" :key="point">
                                <div class="bg-gray-900 rounded-lg p-2 text-center">
                                    <div class="text-[10px] font-bold text-koin-400" x-text="point"></div>
                                    <div class="text-xs text-gray-300 mt-0.5" x-text="fmtPrice(item['point_' + point.toLowerCase()] || item['swing_' + point.toLowerCase()])"></div>
                                </div>
                            </template>
                        </div>
                    </div>

                    <!-- Fibonacci Ratios -->
                    <div class="mb-4">
                        <div class="text-xs text-gray-400 uppercase tracking-wider mb-2">Fibonacci Ratios</div>
                        <div class="grid grid-cols-4 gap-2">
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">XA</div>
                                <div class="text-xs font-medium text-gray-300" x-text="fmt(item.ratio_xa, 3)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">AB</div>
                                <div class="text-xs font-medium text-gray-300" x-text="fmt(item.ratio_ab, 3)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">BC</div>
                                <div class="text-xs font-medium text-gray-300" x-text="fmt(item.ratio_bc, 3)"></div>
                            </div>
                            <div class="bg-gray-900 rounded-lg p-2 text-center">
                                <div class="text-[10px] text-gray-500">CD</div>
                                <div class="text-xs font-medium text-gray-300" x-text="fmt(item.ratio_cd, 3)"></div>
                            </div>
                        </div>
                    </div>

                    <!-- PRZ Zone -->
                    <div class="mb-3">
                        <div class="text-xs text-gray-400 uppercase tracking-wider mb-2">PRZ Zone (Potential Reversal)</div>
                        <div class="bg-gray-900 border border-gray-700 rounded-lg p-3">
                            <div class="flex items-center justify-between text-xs">
                                <span class="text-gray-400">Zone Low</span>
                                <span class="text-white font-medium" x-text="fmtPrice(item.prz_low)"></span>
                            </div>
                            <div class="flex items-center justify-between text-xs mt-1">
                                <span class="text-gray-400">Zone High</span>
                                <span class="text-white font-medium" x-text="fmtPrice(item.prz_high)"></span>
                            </div>
                        </div>
                    </div>

                    <!-- Targets -->
                    <div>
                        <div class="text-xs text-gray-400 uppercase tracking-wider mb-2">Target Prices</div>
                        <div class="space-y-1">
                            <template x-for="(t, ti) in (item.targets || [])" :key="ti">
                                <div class="flex items-center justify-between text-xs">
                                    <span class="text-gray-500" x-text="'T' + (ti + 1)"></span>
                                    <span class="text-gray-300 font-medium" x-text="fmtPrice(t)"></span>
                                </div>
                            </template>
                            <div x-show="!item.targets || item.targets.length === 0" class="text-xs text-gray-600">No targets available</div>
                        </div>
                    </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 harmonic patterns found matching your filters</p>
        </div>
    </div>
</div>

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

        get bullishCount() {
            return this.items.filter(i => (i.direction || '').toLowerCase() === 'bullish').length;
        },
        get bearishCount() {
            return this.items.filter(i => (i.direction || '').toLowerCase() === 'bearish').length;
        },
        get avgReliability() {
            if (this.items.length === 0) return 0;
            return this.items.reduce((s, i) => s + (i.reliability || 0), 0) / this.items.length;
        },
        get patternDist() {
            const dist = {};
            this.items.forEach(i => {
                const p = (i.pattern_type || 'unknown').toLowerCase();
                dist[p] = (dist[p] || 0) + 1;
            });
            return dist;
        },
        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.filterPattern) {
                list = list.filter(i => (i.pattern_type || '').toLowerCase() === this.filterPattern);
            }
            if (this.filterDirection) {
                list = list.filter(i => (i.direction || '').toLowerCase() === this.filterDirection);
            }
            list.sort((a, b) => (b.reliability || 0) - (a.reliability || 0));
            return list;
        },

        patternBadge(type) {
            const map = {
                'gartley': 'bg-blue-900/50 text-blue-400',
                'butterfly': 'bg-purple-900/50 text-purple-400',
                'bat': 'bg-amber-900/50 text-amber-400',
                'crab': 'bg-red-900/50 text-red-400',
                'shark': 'bg-cyan-900/50 text-cyan-400',
            };
            return map[(type || '').toLowerCase()] || 'bg-gray-700/50 text-gray-400';
        },

        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 }}', mode: 'scan_all' });
                const res = await fetch(`/api/v1/market/harmonic-patterns?${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 || json.patterns) {
                    this.items = json.items || json.results || json.patterns || json.data || [];
                    this.items.sort((a, b) => (b.reliability || 0) - (a.reliability || 0));
                } else {
                    this.error = json.message || 'Failed to load harmonic pattern data';
                }
            } catch (e) {
                this.error = 'Failed to load data: ' + e.message;
            } finally {
                this.loading = false;
                this.lastRefresh = new Date().toLocaleTimeString('id-ID');
            }
        }
    };
}
</script>
{% endblock %}