<?php
require_once __DIR__ . '/../src/config.php';
require_once __DIR__ . '/../src/auth.php';
require_once __DIR__ . '/../src/db.php';
require_login();

header('Content-Type: application/json');

$q = trim($_GET['q'] ?? '');
if (mb_strlen($q) < 2) {
    echo json_encode(['ok' => true, 'results' => []]);
    exit;
}

$pdo = get_db();
$like = '%' . $q . '%';
$results = [];

// Rechnungen
$stmt = $pdo->prepare("SELECT i.id, i.invoice_number, i.total_gross, c.name AS customer_name
    FROM invoices i
    JOIN customers c ON c.id = i.customer_id
    WHERE i.invoice_number ILIKE :q OR c.name ILIKE :q2
    ORDER BY i.created_at DESC
    LIMIT 5");
$stmt->execute([':q' => $like, ':q2' => $like]);
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
    $results[] = [
        'type' => 'invoice',
        'title' => $row['invoice_number'],
        'subtitle' => $row['customer_name'] . ' - ' . number_format((float)$row['total_gross'], 2, ',', '.') . ' €',
        'url' => url_for('invoice_pdf.php?id=' . $row['id']),
    ];
}

// Kunden
$stmt = $pdo->prepare("SELECT id, name, city FROM customers
    WHERE name ILIKE :q OR city ILIKE :q2
    ORDER BY name
    LIMIT 5");
$stmt->execute([':q' => $like, ':q2' => $like]);
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
    $results[] = [
        'type' => 'customer',
        'title' => $row['name'],
        'subtitle' => $row['city'] ?? '',
        'url' => url_for('customers.php?action=edit&id=' . $row['id']),
    ];
}

// Ausgaben
$stmt = $pdo->prepare("SELECT id, description, amount, category FROM expenses
    WHERE description ILIKE :q OR category ILIKE :q2
    ORDER BY expense_date DESC
    LIMIT 5");
$stmt->execute([':q' => $like, ':q2' => $like]);
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
    $results[] = [
        'type' => 'expense',
        'title' => $row['description'],
        'subtitle' => ($row['category'] ?? '') . ' - ' . number_format((float)$row['amount'], 2, ',', '.') . ' €',
        'url' => url_for('expenses.php?action=edit&id=' . $row['id']),
    ];
}

// Journal-Einträge
$stmt = $pdo->prepare("SELECT id, description, amount, entry_date FROM journal_entries
    WHERE description ILIKE :q
    ORDER BY entry_date DESC
    LIMIT 5");
$stmt->execute([':q' => $like]);
foreach ($stmt->fetchAll(PDO::FETCH_ASSOC) as $row) {
    $results[] = [
        'type' => 'journal',
        'title' => $row['description'],
        'subtitle' => date('d.m.Y', strtotime($row['entry_date'])) . ' - ' . number_format((float)$row['amount'], 2, ',', '.') . ' €',
        'url' => url_for('journal_entry.php?id=' . $row['id']),
    ];
}

echo json_encode(['ok' => true, 'results' => $results]);