{% extends "base.html" %}
{% block title %}Facturas Venta{% endblock %}
{% block header %}Envío de Facturas Venta{% endblock %}
{% block content %}
<div class="grid grid-cols-1 lg:grid-cols-3 gap-6">

    <!-- Formulario -->
    <div class="lg:col-span-1 space-y-4">
        <div class="bg-white rounded-xl shadow-sm border border-gray-200">
            <div class="px-6 py-4 border-b border-gray-200">
                <h3 class="font-semibold text-gray-800"><i class="fas fa-cog mr-2 text-emerald-500"></i>Parámetros</h3>
            </div>
            <div class="p-5 space-y-4">
                <div>
                    <label class="block text-xs font-medium text-gray-600 mb-1">Factura <span class="text-gray-400">(opcional)</span></label>
                    <input id="f-factura" type="text" placeholder="Ej: CMXC309"
                        class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm">
                </div>
                <div class="grid grid-cols-2 gap-3">
                    <div>
                        <label class="block text-xs font-medium text-gray-600 mb-1">Fecha inicio</label>
                        <input id="f-fi" type="date" class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm">
                    </div>
                    <div>
                        <label class="block text-xs font-medium text-gray-600 mb-1">Fecha fin</label>
                        <input id="f-ff" type="date" class="w-full px-3 py-2 border border-gray-300 rounded-lg text-sm">
                    </div>
                </div>
                <button onclick="cargarRegistros()" id="btn-cargar"
                    class="w-full px-4 py-2 bg-emerald-600 hover:bg-emerald-700 text-white rounded-lg text-sm font-medium">
                    <i class="fas fa-search mr-1"></i> Cargar registros
                </button>
            </div>
        </div>

        <!-- Resumen -->
        <div id="resumen-box" class="hidden bg-white rounded-xl shadow-sm border border-gray-200 p-5">
            <div class="grid grid-cols-3 gap-2 text-center mb-4">
                <div class="bg-gray-50 rounded-lg p-3">
                    <div id="res-total" class="text-xl font-bold text-gray-700">0</div>
                    <div class="text-xs text-gray-500">Total</div>
                </div>
                <div class="bg-green-50 rounded-lg p-3">
                    <div id="res-ok" class="text-xl font-bold text-green-600">0</div>
                    <div class="text-xs text-gray-500">Enviados</div>
                </div>
                <div class="bg-yellow-50 rounded-lg p-3">
                    <div id="res-pend" class="text-xl font-bold text-yellow-600">0</div>
                    <div class="text-xs text-gray-500">Pendientes</div>
                </div>
            </div>
            <div id="res-err-wrap" class="hidden mb-3">
                <div class="bg-red-50 rounded-lg p-3 text-center">
                    <div id="res-err" class="text-xl font-bold text-red-600">0</div>
                    <div class="text-xs text-gray-500">Con error</div>
                </div>
            </div>
            <div class="flex gap-2">
                <button onclick="enviarTodosPendientes()" id="btn-enviar-pend"
                    class="flex-1 px-3 py-2 bg-emerald-600 hover:bg-emerald-700 text-white rounded-lg text-xs font-medium">
                    <i class="fas fa-paper-plane mr-1"></i> Enviar pendientes
                </button>
                <button onclick="cargarRegistros()"
                    class="px-3 py-2 bg-gray-100 hover:bg-gray-200 text-gray-700 rounded-lg text-xs" title="Actualizar">
                    <i class="fas fa-sync"></i>
                </button>
            </div>
        </div>
    </div>

    <!-- Tabla -->
    <div class="lg:col-span-2">
        <div class="bg-white rounded-xl shadow-sm border border-gray-200">
            <div class="px-6 py-4 border-b border-gray-200 flex items-center justify-between">
                <h3 class="font-semibold text-gray-800"><i class="fas fa-file-invoice-dollar mr-2 text-emerald-500"></i>Facturas</h3>
                <span id="tabla-count" class="text-xs text-gray-400"></span>
            </div>
            <div id="tabla-wrap" class="p-6">
                <div class="text-center py-12 text-gray-400 text-sm">
                    <i class="fas fa-file-invoice text-4xl block mb-3 opacity-30"></i>
                    Carga los registros para ver el estado de envío
                </div>
            </div>
        </div>
    </div>
</div>

<!-- Modal JSON -->
<div id="modal-detalle" class="fixed inset-0 z-50 hidden">
    <div class="absolute inset-0 bg-black/60" onclick="closeModal()"></div>
    <div class="absolute top-1/2 left-1/2 -translate-x-1/2 -translate-y-1/2 w-full max-w-3xl bg-white rounded-xl shadow-2xl max-h-[85vh] overflow-hidden flex flex-col">
        <div class="px-6 py-4 border-b border-gray-200 flex justify-between items-center shrink-0">
            <h3 id="modal-titulo" class="font-semibold text-gray-800"><i class="fas fa-code mr-2 text-emerald-500"></i>Detalle</h3>
            <button onclick="closeModal()" class="text-gray-400 hover:text-gray-600"><i class="fas fa-times"></i></button>
        </div>
        <div class="flex border-b border-gray-200 shrink-0 px-4">
            <button onclick="showTab('tab-json')" id="t-json" class="tab-btn px-4 py-2 text-sm font-medium border-b-2 border-emerald-500 text-emerald-600 -mb-px">JSON enviado</button>
            <button onclick="showTab('tab-tns')" id="t-tns" class="tab-btn px-4 py-2 text-sm font-medium border-b-2 border-transparent text-gray-500 hover:text-gray-700 -mb-px">Respuesta TNS</button>
        </div>
        <div class="overflow-y-auto flex-1 p-5">
            <pre id="tab-json" class="tab-pane text-xs font-mono bg-gray-50 rounded-lg p-4 overflow-x-auto whitespace-pre-wrap"></pre>
            <pre id="tab-tns" class="tab-pane hidden text-xs font-mono bg-yellow-50 rounded-lg p-4 overflow-x-auto whitespace-pre-wrap text-yellow-900"></pre>
        </div>
    </div>
</div>

<script>
let allItems = [];
let formParams = {};

(function() {
    const today = new Date();
    const ymd = d => d.toISOString().slice(0, 10);
    document.getElementById('f-ff').value = ymd(today);
    document.getElementById('f-fi').value = ymd(new Date(today.getFullYear(), today.getMonth(), 1));
})();

function getParams() {
    return {
        factura: document.getElementById('f-factura').value,
        fecha_inicio: document.getElementById('f-fi').value,
        fecha_fin: document.getElementById('f-ff').value,
    };
}

async function cargarRegistros() {
    formParams = getParams();
    if (!formParams.fecha_inicio || !formParams.fecha_fin) { showToast('Ingresa las fechas', 'warning'); return; }

    document.getElementById('tabla-wrap').innerHTML = `
        <div class="text-center py-12 text-gray-400 text-sm">
            <i class="fas fa-spinner fa-spin text-3xl block mb-3"></i>Consultando Firebird...
        </div>`;
    document.getElementById('resumen-box').classList.add('hidden');

    const resp = await fetch('/ventas/preview', {
        method: 'POST', credentials: 'include',
        body: new URLSearchParams(formParams),
    });
    const result = await resp.json();

    if (!result.success) {
        document.getElementById('tabla-wrap').innerHTML = `
            <div class="text-center py-10 text-red-500 text-sm">
                <i class="fas fa-exclamation-circle text-3xl block mb-2"></i>
                <strong>Error:</strong> ${escHtml(result.message)}
            </div>`;
        return;
    }

    allItems = result.items;
    renderTabla();
    actualizarResumen();
    document.getElementById('resumen-box').classList.remove('hidden');
}

function renderTabla() {
    if (!allItems.length) {
        document.getElementById('tabla-wrap').innerHTML = '<div class="text-center py-10 text-gray-400 text-sm">Sin registros para los parámetros indicados</div>';
        return;
    }
    document.getElementById('tabla-count').textContent = `${allItems.length} facturas`;

    let html = `<div class="overflow-x-auto">
    <table class="w-full text-xs">
        <thead><tr class="text-left text-gray-400 border-b border-gray-200">
            <th class="pb-2 font-medium pr-3">Factura</th>
            <th class="pb-2 font-medium pr-3">Paciente</th>
            <th class="pb-2 font-medium pr-3">Contrato</th>
            <th class="pb-2 font-medium pr-3">Exámenes</th>
            <th class="pb-2 font-medium pr-3">Estado</th>
            <th class="pb-2 font-medium"></th>
        </tr></thead>
        <tbody>`;

    for (const item of allItems) {
        html += filaHtml(item);
    }
    html += '</tbody></table></div>';
    document.getElementById('tabla-wrap').innerHTML = html;
}

function filaHtml(item) {
    const id = item.factura_key;
    const sid = escAttr(id);
    const env = item.enviado;
    const examsStr = Array.isArray(item.examenes) ? item.examenes.join(', ') : (item.examenes || '');
    const rowId = 'row-' + id.replace(/[^a-zA-Z0-9]/g, '_');
    const estadoId = 'estado-' + id.replace(/[^a-zA-Z0-9]/g, '_');
    const btnId = 'btnenv-' + id.replace(/[^a-zA-Z0-9]/g, '_');

    let badgeHtml, rowCls, accionHtml;
    if (!env) {
        badgeHtml = `<span class="px-2 py-0.5 rounded-full text-xs font-medium bg-yellow-100 text-yellow-700">Pendiente</span>`;
        rowCls = '';
        accionHtml = `<button onclick="enviarUno('${sid}')" title="Enviar" class="px-2 py-1 bg-emerald-600 hover:bg-emerald-700 text-white rounded text-xs"><i class="fas fa-paper-plane"></i></button>`;
    } else if (env.status === 'success') {
        const at = (env.at || '').slice(0, 16).replace('T', ' ');
        badgeHtml = `<span class="px-2 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-700" title="Enviado ${at}">✓ Enviado</span>`;
        rowCls = 'bg-green-50/50 opacity-80';
        accionHtml = `<button onclick="enviarUno('${sid}')" title="Volver a enviar" class="px-2 py-1 bg-gray-400 hover:bg-gray-500 text-white rounded text-xs"><i class="fas fa-redo"></i></button>`;
    } else {
        const tip = escAttr(env.mensaje || 'Error');
        badgeHtml = `<span class="px-2 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-700" title="${tip}">✗ Error</span>`;
        rowCls = 'bg-red-50/50';
        accionHtml = `<button onclick="enviarUno('${sid}')" title="Reintentar" class="px-2 py-1 bg-orange-500 hover:bg-orange-600 text-white rounded text-xs"><i class="fas fa-redo"></i></button>`;
    }

    return `<tr id="${rowId}" class="border-b border-gray-50 hover:bg-gray-50/80 transition-colors ${rowCls}">
        <td class="py-2 pr-3 font-mono text-gray-600">${escHtml(id)}</td>
        <td class="py-2 pr-3 text-gray-600">${escHtml(String(item.paciente || '-'))}</td>
        <td class="py-2 pr-3"><span class="px-1.5 py-0.5 bg-emerald-100 text-emerald-700 rounded text-xs font-mono">${escHtml(String(item.contrato || '-'))}</span></td>
        <td class="py-2 pr-3 text-gray-500 max-w-[180px] truncate" title="${escAttr(examsStr)}">${escHtml(examsStr)}</td>
        <td id="${estadoId}" class="py-2 pr-3">${badgeHtml}</td>
        <td class="py-2 flex gap-1 items-center">
            <button onclick="verDetalle('${sid}')" title="Ver JSON" class="px-2 py-1 bg-gray-100 hover:bg-gray-200 text-gray-600 rounded text-xs"><i class="fas fa-code"></i></button>
            <span id="${btnId}">${accionHtml}</span>
        </td>
    </tr>`;
}

function actualizarResumen() {
    const total = allItems.length;
    const ok = allItems.filter(i => i.enviado && i.enviado.status === 'success').length;
    const pend = allItems.filter(i => !i.enviado).length;
    const err = allItems.filter(i => i.enviado && i.enviado.status === 'error').length;
    document.getElementById('res-total').textContent = total;
    document.getElementById('res-ok').textContent = ok;
    document.getElementById('res-pend').textContent = pend;
    document.getElementById('res-err').textContent = err;
    document.getElementById('res-err-wrap').classList.toggle('hidden', err === 0);
}

function _safeId(id) { return id.replace(/[^a-zA-Z0-9]/g, '_'); }

function marcarFila(id, ok, mensaje, rawTns) {
    const idx = allItems.findIndex(i => i.factura_key === id);
    if (idx !== -1) {
        allItems[idx].enviado = { status: ok ? 'success' : 'error', mensaje, at: new Date().toISOString() };
        if (rawTns !== undefined) allItems[idx]._rawTns = rawTns;
    }
    const sid = escAttr(id);
    const safe = _safeId(id);
    const row = document.getElementById(`row-${safe}`);
    const estadoCell = document.getElementById(`estado-${safe}`);
    const btnWrap = document.getElementById(`btnenv-${safe}`);
    if (!row || !estadoCell) return;

    if (ok) {
        row.className = row.className.replace(/bg-red-50\/50|bg-green-50\/50/g, '') + ' bg-green-50/50 opacity-80';
        estadoCell.innerHTML = `<span class="px-2 py-0.5 rounded-full text-xs font-medium bg-green-100 text-green-700">✓ Enviado</span>`;
        if (btnWrap) btnWrap.innerHTML = `<button onclick="enviarUno('${sid}')" title="Volver a enviar" class="px-2 py-1 bg-gray-400 hover:bg-gray-500 text-white rounded text-xs"><i class="fas fa-redo"></i></button>`;
    } else {
        row.className = row.className.replace(/bg-red-50\/50|bg-green-50\/50/g, '') + ' bg-red-50/50';
        estadoCell.innerHTML = `<span class="px-2 py-0.5 rounded-full text-xs font-medium bg-red-100 text-red-700" title="${escAttr(mensaje||'')}">✗ Error</span>`;
        if (btnWrap) btnWrap.innerHTML = `<button onclick="enviarUno('${sid}')" title="Reintentar" class="px-2 py-1 bg-orange-500 hover:bg-orange-600 text-white rounded text-xs"><i class="fas fa-redo"></i></button>`;
    }
    actualizarResumen();
}

async function enviarUno(id) {
    const safe = _safeId(id);
    const btnWrap = document.getElementById(`btnenv-${safe}`);
    if (btnWrap) btnWrap.innerHTML = '<span class="px-2 py-1 text-gray-400 text-xs"><i class="fas fa-spinner fa-spin"></i></span>';

    const fd = new URLSearchParams({ ...formParams, factura_key: id });
    let result;
    try {
        const resp = await fetch('/ventas/send-one', { method: 'POST', credentials: 'include', body: fd });
        result = await resp.json();
    } catch (e) {
        result = { success: false, message: String(e) };
    }

    marcarFila(id, result.success, result.message, result.raw_tns);
    if (result.success) {
        showToast(`Factura ${escHtml(id)}: enviada`, 'success');
    } else {
        showToast(`Factura ${escHtml(id)}: ${escHtml(result.message || 'Error')}`, 'error');
    }
}

async function enviarTodosPendientes() {
    const pendientes = allItems.filter(i => !i.enviado);
    if (!pendientes.length) { showToast('No hay registros pendientes', 'info'); return; }
    if (!confirm(`¿Enviar ${pendientes.length} facturas pendientes?`)) return;

    const btn = document.getElementById('btn-enviar-pend');
    btn.disabled = true;
    btn.innerHTML = '<i class="fas fa-spinner fa-spin mr-1"></i> Enviando...';

    let ok = 0, err = 0;
    for (const item of pendientes) {
        await enviarUno(item.factura_key);
        if (allItems.find(i => i.factura_key === item.factura_key)?.enviado?.status === 'success') ok++; else err++;
    }

    btn.disabled = false;
    btn.innerHTML = '<i class="fas fa-paper-plane mr-1"></i> Enviar pendientes';
    showToast(`Completado: ${ok} enviados, ${err} errores`, err === 0 ? 'success' : 'warning');
}

function verDetalle(id) {
    const item = allItems.find(i => i.factura_key === id);
    if (!item) return;
    document.getElementById('modal-titulo').innerHTML = `<i class="fas fa-code mr-2 text-emerald-500"></i>${escHtml(id)} — ${escHtml(item.paciente || '')} — Factura ${escHtml(item.factura || '-')}`;
    document.getElementById('tab-json').innerHTML = syntaxHighlight(item.json || {});
    const tnsPre = document.getElementById('tab-tns');
    if (item.enviado) {
        let tnsText = item._rawTns || item.enviado.mensaje || '(sin respuesta)';
        try { tnsText = JSON.stringify(JSON.parse(tnsText), null, 2); } catch(e) {}
        tnsPre.textContent = tnsText;
    } else {
        tnsPre.textContent = '(aún no enviado)';
    }
    showTab('tab-json');
    document.getElementById('modal-detalle').classList.remove('hidden');
}

function showTab(tabId) {
    document.querySelectorAll('.tab-pane').forEach(p => p.classList.add('hidden'));
    document.querySelectorAll('.tab-btn').forEach(b => {
        b.classList.remove('border-emerald-500', 'text-emerald-600');
        b.classList.add('border-transparent', 'text-gray-500');
    });
    document.getElementById(tabId).classList.remove('hidden');
    const btnId = tabId === 'tab-json' ? 't-json' : 't-tns';
    const btn = document.getElementById(btnId);
    btn.classList.add('border-emerald-500', 'text-emerald-600');
    btn.classList.remove('border-transparent', 'text-gray-500');
}

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

function escHtml(s) { return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); }
function escAttr(s) { return String(s).replace(/"/g,'&quot;').replace(/'/g,'&#39;'); }

function syntaxHighlight(obj) {
    let json = JSON.stringify(obj, null, 2);
    json = json.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
    return json
        .replace(/("(?:[^"\\]|\\.)*")(?=\s*:)/g,'<span class="text-blue-600">$1</span>')
        .replace(/:(\s*)("(?:[^"\\]|\\.)*")/g,': $1<span class="text-green-700">$2</span>')
        .replace(/: (\d+(?:\.\d+)?)/g,': <span class="text-orange-600">$1</span>')
        .replace(/: (null|true|false)/g,': <span class="text-purple-600">$1</span>');
}
</script>
{% endblock %}