{{define "title"}}Цены - QuoteForge{{end}}

{{define "content"}}
<div class="space-y-4">
    <h1 class="text-2xl font-bold">Управление ценами</h1>

    <div class="bg-white rounded-lg shadow p-4">
        <div class="flex justify-between items-center border-b pb-4 mb-4">
            <div class="flex gap-4">
                <button onclick="loadTab('alerts')" id="btn-alerts" class="text-blue-600 font-medium">Алерты</button>
                <button onclick="loadTab('components')" id="btn-components" class="text-gray-600">Компоненты</button>
            </div>
            <button onclick="recalculateAll()" id="btn-recalc" class="px-3 py-1 bg-green-600 text-white text-sm rounded hover:bg-green-700">
                Пересчитать цены
            </button>
        </div>

        <!-- Progress bar -->
        <div id="progress-container" class="mb-4 p-4 bg-blue-50 rounded-lg border border-blue-200" style="display:none;">
            <div class="flex justify-between text-sm text-gray-700 mb-2">
                <span id="progress-text" class="font-medium">Пересчёт цен...</span>
                <span id="progress-percent" class="font-bold">0%</span>
            </div>
            <div class="w-full bg-gray-200 rounded-full h-4">
                <div id="progress-bar" class="bg-blue-600 h-4 rounded-full transition-all duration-300" style="width: 0%"></div>
            </div>
            <div class="text-sm text-gray-600 mt-2">
                <span id="progress-stats"></span>
            </div>
        </div>

        <!-- Search and sort (only for components) -->
        <div id="search-bar" class="mb-4 hidden">
            <div class="flex gap-4 items-center">
                <input type="text" id="search-input" placeholder="Поиск по артикулу..."
                       class="flex-1 px-3 py-2 border rounded"
                       onkeyup="debounceSearch()">
                <div class="flex items-center gap-2">
                    <span class="text-sm text-gray-500">Сортировка:</span>
                    <select id="sort-field" class="px-2 py-1 border rounded text-sm" onchange="changeSort()">
                        <option value="lot_name">Артикул</option>
                        <option value="popularity_score" selected>Популярность</option>
                        <option value="quote_count">Кол-во котировок</option>
                        <option value="current_price">Цена</option>
                    </select>
                    <button onclick="toggleSortDir()" id="sort-dir-btn" class="px-2 py-1 border rounded text-sm">↓</button>
                </div>
            </div>
        </div>

        <div id="tab-content">
            <div class="text-center py-8 text-gray-500">Загрузка...</div>
        </div>

        <!-- Pagination -->
        <div id="pagination" class="flex justify-between items-center mt-4 pt-4 border-t hidden">
            <span id="page-info" class="text-sm text-gray-600"></span>
            <div class="flex gap-2">
                <button onclick="prevPage()" id="btn-prev" class="px-3 py-1 border rounded text-sm disabled:opacity-50">Назад</button>
                <button onclick="nextPage()" id="btn-next" class="px-3 py-1 border rounded text-sm disabled:opacity-50">Вперед</button>
            </div>
        </div>
    </div>
</div>

<!-- Price Settings Modal -->
<div id="price-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
    <div class="bg-white rounded-lg shadow-xl w-full max-w-md mx-4">
        <div class="flex justify-between items-center p-4 border-b">
            <h3 class="text-lg font-semibold">Настройка цены</h3>
            <button onclick="closeModal()" class="text-gray-500 hover:text-gray-700">&times;</button>
        </div>
        <div class="p-4 space-y-4">
            <div>
                <label class="block text-sm font-medium text-gray-700 mb-1">Артикул</label>
                <input type="text" id="modal-lot-name" readonly class="w-full px-3 py-2 border rounded bg-gray-100">
            </div>

            <div>
                <label class="block text-sm font-medium text-gray-700 mb-1">Метод расчёта</label>
                <select id="modal-method" class="w-full px-3 py-2 border rounded">
                    <option value="median">Медиана</option>
                    <option value="average">Среднее</option>
                </select>
            </div>

            <div>
                <label class="block text-sm font-medium text-gray-700 mb-1">Период расчёта</label>
                <select id="modal-period" class="w-full px-3 py-2 border rounded">
                    <option value="7">1 неделя</option>
                    <option value="30">1 месяц</option>
                    <option value="90">1 квартал</option>
                    <option value="365">1 год</option>
                    <option value="0">Всё время</option>
                </select>
            </div>

            <div>
                <label class="block text-sm font-medium text-gray-700 mb-1">Коэффициент корректировки (%)</label>
                <input type="number" id="modal-coefficient" step="1" class="w-full px-3 py-2 border rounded" placeholder="0">
                <p class="text-xs text-gray-500 mt-1">Например: 30 для +30%, -10 для -10%</p>
            </div>

            <div class="border-t pt-4">
                <label class="flex items-center mb-2">
                    <input type="checkbox" id="modal-manual-enabled" class="mr-2" onchange="toggleManualPrice()">
                    <span class="text-sm font-medium text-gray-700">Установить цену вручную</span>
                </label>
                <input type="number" id="modal-manual-price" step="0.01" class="w-full px-3 py-2 border rounded" placeholder="Цена USD" disabled>
                <p class="text-xs text-gray-500 mt-1">Ручная цена сохраняется при пересчёте</p>
            </div>

            <div class="bg-gray-50 p-3 rounded space-y-2">
                <div class="text-sm font-medium text-gray-700 mb-2">Расчёт цены</div>
                <div class="grid grid-cols-2 gap-2 text-sm">
                    <div class="text-gray-600">Последняя цена:</div>
                    <div id="modal-last-price" class="font-medium text-right">—</div>
                    <div class="text-gray-600">Медиана (всё время):</div>
                    <div id="modal-median-all" class="font-medium text-right">—</div>
                    <div class="text-gray-600">Текущая цена:</div>
                    <div id="modal-current-price" class="font-medium text-right">—</div>
                    <div class="text-gray-600 font-medium text-blue-600">Новая цена:</div>
                    <div id="modal-new-price" class="font-bold text-right text-blue-600">—</div>
                </div>
                <div class="text-xs text-gray-500 pt-2 border-t">
                    Кол-во котировок: <span id="modal-quote-count">—</span>
                </div>
            </div>
        </div>
        <div class="flex justify-end gap-2 p-4 border-t">
            <button onclick="closeModal()" class="px-4 py-2 border rounded hover:bg-gray-50">Отмена</button>
            <button onclick="savePrice()" class="px-4 py-2 bg-blue-600 text-white rounded hover:bg-blue-700">Сохранить</button>
        </div>
    </div>
</div>

<script>
let currentTab = 'alerts';
let currentPage = 1;
let totalPages = 1;
let perPage = 50;
let searchTimeout = null;
let currentSearch = '';
let componentsCache = [];
let sortField = 'popularity_score';
let sortDir = 'desc';

async function loadTab(tab) {
    currentTab = tab;
    currentPage = 1;
    currentSearch = '';
    document.getElementById('search-input').value = '';

    document.getElementById('btn-alerts').className = tab === 'alerts' ? 'text-blue-600 font-medium' : 'text-gray-600';
    document.getElementById('btn-components').className = tab === 'components' ? 'text-blue-600 font-medium' : 'text-gray-600';
    document.getElementById('search-bar').className = tab === 'components' ? 'mb-4' : 'mb-4 hidden';
    document.getElementById('pagination').className = tab === 'components' ? 'flex justify-between items-center mt-4 pt-4 border-t' : 'hidden';

    await loadData();
}

async function loadData() {
    const token = localStorage.getItem('token');
    if (!token) {
        window.location.href = '/login';
        return;
    }

    document.getElementById('tab-content').innerHTML = '<div class="text-center py-8 text-gray-500">Загрузка...</div>';

    try {
        if (currentTab === 'alerts') {
            const resp = await fetch('/admin/pricing/alerts?per_page=100', {
                headers: {'Authorization': 'Bearer ' + token}
            });
            if (resp.status === 401) { logout(); return; }
            if (resp.status === 403) { window.location.href = '/'; return; }
            const data = await resp.json();
            renderAlerts(data.alerts || []);
        } else {
            let url = '/admin/pricing/components?page=' + currentPage + '&per_page=' + perPage;
            if (currentSearch) {
                url += '&search=' + encodeURIComponent(currentSearch);
            }
            if (sortField) {
                url += '&sort=' + encodeURIComponent(sortField);
            }
            if (sortDir) {
                url += '&dir=' + encodeURIComponent(sortDir);
            }
            const resp = await fetch(url, {
                headers: {'Authorization': 'Bearer ' + token}
            });
            if (resp.status === 401) { logout(); return; }
            const data = await resp.json();
            totalPages = Math.ceil(data.total / perPage);
            componentsCache = data.components || [];
            renderComponents(componentsCache, data.total);
            updatePagination(data.total);
        }
    } catch(e) {
        document.getElementById('tab-content').innerHTML = '<div class="text-center py-8 text-red-600">Ошибка загрузки</div>';
    }
}

function debounceSearch() {
    clearTimeout(searchTimeout);
    searchTimeout = setTimeout(() => {
        currentSearch = document.getElementById('search-input').value;
        currentPage = 1;
        loadData();
    }, 300);
}

function prevPage() {
    if (currentPage > 1) {
        currentPage--;
        loadData();
    }
}

function nextPage() {
    if (currentPage < totalPages) {
        currentPage++;
        loadData();
    }
}

function updatePagination(total) {
    document.getElementById('page-info').textContent =
        'Страница ' + currentPage + ' из ' + totalPages + ' (всего: ' + total + ')';
    document.getElementById('btn-prev').disabled = currentPage <= 1;
    document.getElementById('btn-next').disabled = currentPage >= totalPages;
}

function renderAlerts(alerts) {
    if (alerts.length === 0) {
        document.getElementById('tab-content').innerHTML = '<div class="text-center py-8 text-green-600">Нет активных алертов</div>';
        return;
    }

    let html = '<div class="space-y-2">';
    alerts.forEach(a => {
        const colors = {critical: 'bg-red-100', high: 'bg-orange-100', medium: 'bg-yellow-100', low: 'bg-blue-100'};
        html += '<div class="' + (colors[a.severity] || 'bg-gray-100') + ' p-3 rounded">';
        html += '<div class="flex justify-between"><span class="font-medium">' + escapeHtml(a.lot_name) + '</span>';
        html += '<span class="text-xs uppercase">' + a.severity + '</span></div>';
        html += '<p class="text-sm text-gray-600">' + escapeHtml(a.message) + '</p></div>';
    });
    html += '</div>';
    document.getElementById('tab-content').innerHTML = html;
}

function renderComponents(components, total) {
    if (components.length === 0) {
        document.getElementById('tab-content').innerHTML = '<div class="text-center py-8 text-gray-500">Нет данных</div>';
        return;
    }

    let html = '<div class="overflow-x-auto"><table class="w-full"><thead class="bg-gray-50"><tr>';
    html += '<th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Артикул</th>';
    html += '<th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Категория</th>';
    html += '<th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Описание</th>';
    html += '<th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Популярность</th>';
    html += '<th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Кол-во котировок</th>';
    html += '<th class="px-3 py-2 text-right text-xs font-medium text-gray-500 uppercase">Цена</th>';
    html += '<th class="px-3 py-2 text-left text-xs font-medium text-gray-500 uppercase">Настройки</th>';
    html += '</tr></thead><tbody class="divide-y">';

    components.forEach((c, idx) => {
        const price = c.current_price ? '$' + parseFloat(c.current_price).toLocaleString('en-US', {minimumFractionDigits: 2}) : '—';
        const category = c.category ? c.category.code : '—';
        const desc = c.lot && c.lot.lot_description ? c.lot.lot_description : '—';
        const quoteCount = c.quote_count || 0;
        const popularity = c.popularity_score ? c.popularity_score.toFixed(2) : '0.00';

        // Build settings summary
        let settings = [];
        const method = c.price_method || 'median';
        settings.push(method === 'median' ? 'М' : 'С');
        const period = c.price_period_days !== undefined && c.price_period_days !== null ? c.price_period_days : 90;
        if (period === 7) settings.push('1н');
        else if (period === 30) settings.push('1м');
        else if (period === 90) settings.push('3м');
        else if (period === 365) settings.push('1г');
        else if (period === 0) settings.push('все');
        else settings.push(period + 'д');
        if (c.price_coefficient && c.price_coefficient !== 0) {
            settings.push((c.price_coefficient > 0 ? '+' : '') + c.price_coefficient + '%');
        }
        if (c.manual_price && c.manual_price > 0) {
            settings.push('РУЧН');
        }

        html += '<tr class="hover:bg-gray-50 cursor-pointer" onclick="openModal(' + idx + ')">';
        html += '<td class="px-3 py-2 text-sm font-mono">' + escapeHtml(c.lot_name) + '</td>';
        html += '<td class="px-3 py-2 text-sm">' + escapeHtml(category) + '</td>';
        html += '<td class="px-3 py-2 text-sm text-gray-500 max-w-xs truncate">' + escapeHtml(desc) + '</td>';
        html += '<td class="px-3 py-2 text-sm text-right">' + popularity + '</td>';
        html += '<td class="px-3 py-2 text-sm text-right">' + quoteCount + '</td>';
        html += '<td class="px-3 py-2 text-sm text-right font-medium">' + price + '</td>';
        html += '<td class="px-3 py-2 text-sm"><span class="text-xs bg-gray-100 px-2 py-1 rounded">' + settings.join(' | ') + '</span></td>';
        html += '</tr>';
    });

    html += '</tbody></table></div>';
    document.getElementById('tab-content').innerHTML = html;
}

function escapeHtml(text) {
    if (!text) return '';
    const div = document.createElement('div');
    div.textContent = text;
    return div.innerHTML;
}

// Modal functions
function openModal(idx) {
    const c = componentsCache[idx];
    if (!c) return;

    document.getElementById('modal-lot-name').value = c.lot_name;
    document.getElementById('modal-method').value = c.price_method || 'median';
    document.getElementById('modal-period').value = String(c.price_period_days !== undefined && c.price_period_days !== null ? c.price_period_days : 90);
    document.getElementById('modal-coefficient').value = c.price_coefficient || 0;

    const hasManual = c.manual_price && c.manual_price > 0;
    document.getElementById('modal-manual-enabled').checked = hasManual;
    document.getElementById('modal-manual-price').value = hasManual ? c.manual_price : '';
    document.getElementById('modal-manual-price').disabled = !hasManual;

    // Reset price displays while loading
    document.getElementById('modal-last-price').textContent = '...';
    document.getElementById('modal-median-all').textContent = '...';
    document.getElementById('modal-current-price').textContent = '...';
    document.getElementById('modal-new-price').textContent = '...';
    document.getElementById('modal-quote-count').textContent = '...';

    document.getElementById('price-modal').classList.remove('hidden');
    document.getElementById('price-modal').classList.add('flex');

    // Fetch price preview
    fetchPreview();
}

async function fetchPreview() {
    const token = localStorage.getItem('token');
    if (!token) return;

    const lotName = document.getElementById('modal-lot-name').value;
    const method = document.getElementById('modal-method').value;
    const periodDays = parseInt(document.getElementById('modal-period').value) || 0;
    const coefficient = parseFloat(document.getElementById('modal-coefficient').value) || 0;

    try {
        const resp = await fetch('/admin/pricing/preview', {
            method: 'POST',
            headers: {
                'Authorization': 'Bearer ' + token,
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                lot_name: lotName,
                method: method,
                period_days: periodDays,
                coefficient: coefficient
            })
        });

        if (resp.status === 401) { logout(); return; }

        if (resp.ok) {
            const data = await resp.json();

            // Update last price with date
            if (data.last_price) {
                let lastPriceText = '$' + parseFloat(data.last_price).toFixed(2);
                if (data.last_price_date) {
                    const date = new Date(data.last_price_date);
                    lastPriceText += ' (' + date.toLocaleDateString('ru-RU') + ')';
                }
                document.getElementById('modal-last-price').textContent = lastPriceText;
            } else {
                document.getElementById('modal-last-price').textContent = '—';
            }

            // Update median all time
            document.getElementById('modal-median-all').textContent =
                data.median_all_time ? '$' + parseFloat(data.median_all_time).toFixed(2) : '—';

            // Update current price
            document.getElementById('modal-current-price').textContent =
                data.current_price ? '$' + parseFloat(data.current_price).toFixed(2) : '—';

            // Update new calculated price
            document.getElementById('modal-new-price').textContent =
                data.new_price ? '$' + parseFloat(data.new_price).toFixed(2) : '—';

            // Update quote count
            document.getElementById('modal-quote-count').textContent = data.quote_count || 0;
        }
    } catch(e) {
        console.error('Preview fetch error:', e);
        document.getElementById('modal-last-price').textContent = '—';
        document.getElementById('modal-median-all').textContent = '—';
        document.getElementById('modal-current-price').textContent = '—';
        document.getElementById('modal-new-price').textContent = '—';
    }
}

function closeModal() {
    document.getElementById('price-modal').classList.add('hidden');
    document.getElementById('price-modal').classList.remove('flex');
}

function toggleManualPrice() {
    const enabled = document.getElementById('modal-manual-enabled').checked;
    document.getElementById('modal-manual-price').disabled = !enabled;
    if (!enabled) {
        document.getElementById('modal-manual-price').value = '';
    }
    fetchPreview();
}

// Debounce helper for preview updates
let previewTimeout = null;
function debounceFetchPreview() {
    clearTimeout(previewTimeout);
    previewTimeout = setTimeout(fetchPreview, 300);
}

async function savePrice() {
    const token = localStorage.getItem('token');
    if (!token) {
        window.location.href = '/login';
        return;
    }

    const lotName = document.getElementById('modal-lot-name').value;
    const method = document.getElementById('modal-method').value;
    const periodDaysStr = document.getElementById('modal-period').value;
    const periodDays = periodDaysStr !== '' ? parseInt(periodDaysStr) : 90;
    const coefficient = parseFloat(document.getElementById('modal-coefficient').value) || 0;
    const manualEnabled = document.getElementById('modal-manual-enabled').checked;
    const manualPrice = manualEnabled ? parseFloat(document.getElementById('modal-manual-price').value) : null;

    const body = {
        lot_name: lotName,
        method: method,
        period_days: periodDays,
        coefficient: coefficient,
        clear_manual: !manualEnabled
    };

    if (manualEnabled && manualPrice > 0) {
        body.manual_price = manualPrice;
    }

    try {
        const resp = await fetch('/admin/pricing/update', {
            method: 'POST',
            headers: {
                'Authorization': 'Bearer ' + token,
                'Content-Type': 'application/json'
            },
            body: JSON.stringify(body)
        });

        if (resp.status === 401) { logout(); return; }

        if (resp.ok) {
            closeModal();
            loadData();
        } else {
            const data = await resp.json();
            alert('Ошибка: ' + (data.error || 'Неизвестная ошибка'));
        }
    } catch(e) {
        alert('Ошибка соединения');
    }
}

function recalculateAll() {
    const token = localStorage.getItem('token');
    if (!token) {
        window.location.href = '/login';
        return;
    }

    const btn = document.getElementById('btn-recalc');
    const progressContainer = document.getElementById('progress-container');
    const progressBar = document.getElementById('progress-bar');
    const progressText = document.getElementById('progress-text');
    const progressPercent = document.getElementById('progress-percent');
    const progressStats = document.getElementById('progress-stats');

    // Show progress bar IMMEDIATELY
    btn.disabled = true;
    btn.textContent = 'Пересчёт...';
    progressContainer.style.display = 'block';
    progressBar.style.width = '0%';
    progressBar.className = 'bg-blue-600 h-4 rounded-full transition-all duration-300';
    progressText.textContent = 'Запуск пересчёта...';
    progressPercent.textContent = '0%';
    progressStats.textContent = 'Подготовка...';

    // Use fetch with streaming for SSE
    fetch('/admin/pricing/recalculate-all', {
        method: 'POST',
        headers: {'Authorization': 'Bearer ' + token}
    }).then(response => {
        const reader = response.body.getReader();
        const decoder = new TextDecoder();

        function read() {
            reader.read().then(({done, value}) => {
                if (done) {
                    btn.disabled = false;
                    btn.textContent = 'Пересчитать цены';
                    progressText.textContent = 'Готово!';
                    progressBar.className = 'bg-green-600 h-4 rounded-full';
                    setTimeout(() => {
                        progressContainer.style.display = 'none';
                        if (currentTab === 'components') {
                            loadData();
                        }
                    }, 2000);
                    return;
                }

                const text = decoder.decode(value);
                const lines = text.split('\n');

                lines.forEach(line => {
                    if (line.startsWith('data:')) {
                        try {
                            const data = JSON.parse(line.substring(5).trim());
                            const percent = data.total > 0 ? Math.round((data.current / data.total) * 100) : 0;

                            progressBar.style.width = percent + '%';
                            progressPercent.textContent = percent + '%';

                            if (data.status === 'completed') {
                                progressText.textContent = 'Пересчёт завершён!';
                                progressBar.className = 'bg-green-600 h-4 rounded-full';
                            } else {
                                progressText.textContent = 'Обработка компонентов...';
                            }

                            progressStats.textContent = 'Обновлено: ' + (data.updated || 0) + ' | Ручные: ' + (data.manual || 0) + ' | Нет данных: ' + (data.skipped || 0) + ' | Ошибок: ' + (data.errors || 0);
                        } catch(e) {
                            console.log('Parse error:', e, line);
                        }
                    }
                });

                read();
            });
        }

        read();
    }).catch(e => {
        console.error('Fetch error:', e);
        alert('Ошибка соединения');
        btn.disabled = false;
        btn.textContent = 'Пересчитать цены';
        progressContainer.style.display = 'none';
    });
}

// Close modal on click outside
document.getElementById('price-modal').addEventListener('click', function(e) {
    if (e.target === this) {
        closeModal();
    }
});

function changeSort() {
    sortField = document.getElementById('sort-field').value;
    currentPage = 1;
    loadData();
}

function toggleSortDir() {
    sortDir = sortDir === 'asc' ? 'desc' : 'asc';
    document.getElementById('sort-dir-btn').textContent = sortDir === 'asc' ? '↑' : '↓';
    currentPage = 1;
    loadData();
}

document.addEventListener('DOMContentLoaded', () => {
    loadTab('alerts');

    // Add event listeners for preview updates
    document.getElementById('modal-method').addEventListener('change', fetchPreview);
    document.getElementById('modal-period').addEventListener('change', fetchPreview);
    document.getElementById('modal-coefficient').addEventListener('input', debounceFetchPreview);
});
</script>
{{end}}

{{template "base" .}}