{{define "title"}}Прайслисты - PriceForge{{end}}

{{define "content"}}
<div class="space-y-6">
    <div class="flex justify-between items-center">
        <h1 class="text-2xl font-bold text-gray-900">Прайслисты</h1>
        <div id="create-btn-container"></div>
    </div>

    <div class="bg-white rounded-lg shadow overflow-hidden">
        <table class="min-w-full divide-y divide-gray-200">
            <thead class="bg-gray-50">
                <tr>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Версия</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Дата</th>
                    <th class="px-6 py-3 text-left text-xs font-medium text-gray-500 uppercase">Автор</th>
                    <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 uppercase">Позиций</th>
                    <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 uppercase">Исп.</th>
                    <th class="px-6 py-3 text-center text-xs font-medium text-gray-500 uppercase">Статус</th>
                    <th class="px-6 py-3 text-right text-xs font-medium text-gray-500 uppercase">Действия</th>
                </tr>
            </thead>
            <tbody id="pricelists-body" class="bg-white divide-y divide-gray-200">
                <tr>
                    <td colspan="7" class="px-6 py-4 text-center text-gray-500">Загрузка...</td>
                </tr>
            </tbody>
        </table>
    </div>

    <div id="pagination" class="flex justify-center space-x-2"></div>
</div>

<!-- Create Modal -->
<div id="create-modal" class="fixed inset-0 bg-black bg-opacity-50 hidden items-center justify-center z-50">
    <div class="bg-white rounded-lg p-6 max-w-md w-full mx-4">
        <h2 class="text-xl font-bold mb-4">Создать прайслист</h2>
        <p class="text-sm text-gray-600 mb-4">
            Будет создан снимок текущих цен из базы данных.<br>
            Автор прайслиста: <span id="db-username" class="font-medium">загрузка...</span>
        </p>
        <form id="create-form" class="space-y-4">
            <div class="flex justify-end space-x-3">
                <button type="button" onclick="closeCreateModal()"
                        class="px-4 py-2 text-gray-700 border border-gray-300 rounded-md hover:bg-gray-50">
                    Отмена
                </button>
                <button type="submit"
                        class="px-4 py-2 bg-orange-600 text-white rounded-md hover:bg-orange-700">
                    Создать
                </button>
            </div>
        </form>
    </div>
</div>

<script>
    let canWrite = false;
    let currentPage = 1;

    function escapeHtml(value) {
        return String(value ?? '')
            .replaceAll('&', '&amp;')
            .replaceAll('<', '&lt;')
            .replaceAll('>', '&gt;')
            .replaceAll('"', '&quot;')
            .replaceAll("'", '&#39;');
    }

    async function checkPricelistWritePermission() {
        try {
            const resp = await fetch('/api/pricelists/can-write');
            const data = await resp.json();
            canWrite = data.can_write;

            if (canWrite) {
                document.getElementById('create-btn-container').innerHTML = `
                    <button onclick="openCreateModal()" class="px-4 py-2 bg-orange-600 text-white rounded-md hover:bg-orange-700">
                        Создать прайслист
                    </button>
                `;
            }
        } catch (e) {
            console.error('Failed to check pricelist write permission:', e);
        }
    }

    async function loadPricelists(page = 1) {
        currentPage = page;
        try {
            const resp = await fetch(`/api/pricelists?page=${page}&per_page=20`);
            const data = await resp.json();

            renderPricelists(data.pricelists || []);
            renderPagination(data.total, data.page, data.per_page);
        } catch (e) {
            document.getElementById('pricelists-body').innerHTML = `
                <tr>
                    <td colspan="7" class="px-6 py-4 text-center text-red-500">
                        Ошибка загрузки: ${escapeHtml(e.message)}
                    </td>
                </tr>
            `;
        }
    }

    function renderPricelists(pricelists) {
        if (pricelists.length === 0) {
            document.getElementById('pricelists-body').innerHTML = `
                <tr>
                    <td colspan="7" class="px-6 py-4 text-center text-gray-500">
                        Прайслисты не найдены. ${canWrite ? 'Создайте первый прайслист.' : ''}
                    </td>
                </tr>
            `;
            return;
        }

        const html = pricelists.map(pl => {
            const date = new Date(pl.created_at).toLocaleDateString('ru-RU');
            const statusClass = pl.is_active ? 'bg-green-100 text-green-800' : 'bg-gray-100 text-gray-800';
            const statusText = pl.is_active ? 'Активен' : 'Неактивен';
            const id = Number(pl.id);
            const safeID = Number.isFinite(id) ? id : 0;
            const safeVersion = escapeHtml(pl.version || '');
            const safeDate = escapeHtml(date);
            const safeCreatedBy = escapeHtml(pl.created_by || '-');
            const safeItemCount = Number.isFinite(Number(pl.item_count)) ? Number(pl.item_count) : 0;
            const safeUsageCount = Number.isFinite(Number(pl.usage_count)) ? Number(pl.usage_count) : 0;

            let actions = `<a href="/pricelists/${safeID}" class="text-orange-600 hover:text-orange-800 text-sm">Просмотр</a>`;
            if (canWrite && safeUsageCount === 0 && safeID > 0) {
                actions += ` <button onclick="deletePricelist(${safeID})" class="text-red-600 hover:text-red-800 text-sm ml-2">Удалить</button>`;
            }

            return `
                <tr class="hover:bg-gray-50">
                    <td class="px-6 py-4 whitespace-nowrap">
                        <span class="font-mono text-sm">${safeVersion}</span>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">${safeDate}</td>
                    <td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">${safeCreatedBy}</td>
                    <td class="px-6 py-4 whitespace-nowrap text-center text-sm">${safeItemCount}</td>
                    <td class="px-6 py-4 whitespace-nowrap text-center text-sm">${safeUsageCount}</td>
                    <td class="px-6 py-4 whitespace-nowrap text-center">
                        <span class="px-2 py-1 text-xs rounded-full ${statusClass}">${statusText}</span>
                    </td>
                    <td class="px-6 py-4 whitespace-nowrap text-right">${actions}</td>
                </tr>
            `;
        }).join('');

        document.getElementById('pricelists-body').innerHTML = html;
    }

    function renderPagination(total, page, perPage) {
        const totalPages = Math.ceil(total / perPage);
        if (totalPages <= 1) {
            document.getElementById('pagination').innerHTML = '';
            return;
        }

        let html = '';
        for (let i = 1; i <= totalPages; i++) {
            const activeClass = i === page ? 'bg-orange-600 text-white' : 'bg-white text-gray-700 hover:bg-gray-50';
            html += `<button onclick="loadPricelists(${i})" class="px-3 py-1 rounded border ${activeClass}">${i}</button>`;
        }

        document.getElementById('pagination').innerHTML = html;
    }

    async function loadDbUsername() {
        try {
            const resp = await fetch('/api/current-user');
            const data = await resp.json();
            document.getElementById('db-username').textContent = data.username || 'неизвестно';
        } catch (e) {
            document.getElementById('db-username').textContent = 'неизвестно';
        }
    }

    function openCreateModal() {
        document.getElementById('create-modal').classList.remove('hidden');
        document.getElementById('create-modal').classList.add('flex');
        loadDbUsername();
    }

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

    async function createPricelist() {
        const resp = await fetch('/api/pricelists', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({})
        });

        if (!resp.ok) {
            const data = await resp.json();
            throw new Error(data.error || 'Failed to create pricelist');
        }

        return await resp.json();
    }

    async function deletePricelist(id) {
        if (!confirm('Удалить этот прайслист?')) return;

        try {
            const resp = await fetch(`/api/pricelists/${id}`, {
                method: 'DELETE'
            });

            if (!resp.ok) {
                const data = await resp.json();
                throw new Error(data.error || 'Failed to delete');
            }

            showToast('Прайслист удален', 'success');
            loadPricelists(currentPage);
        } catch (e) {
            showToast('Ошибка: ' + e.message, 'error');
        }
    }

    document.getElementById('create-form').addEventListener('submit', async function(e) {
        e.preventDefault();

        try {
            const pl = await createPricelist();
            closeCreateModal();
            showToast(`Прайслист ${pl.version} создан (${pl.item_count} позиций)`, 'success');
            loadPricelists(1);
        } catch (e) {
            showToast('Ошибка: ' + e.message, 'error');
        }
    });

    document.addEventListener('DOMContentLoaded', function() {
        checkPricelistWritePermission();
        loadPricelists(1);
    });
</script>
{{end}}

{{template "base" .}}