<?php
/**
 * API Endpoint: Get Block Details
 * Returns detailed information about a specific block (for preview)
 */

require_once __DIR__ . '/../vendor/autoload.php';
require_once __DIR__ . '/../helpers.php';
require_once __DIR__ . '/../auth/auth_functions.php';

use Dotenv\Dotenv;

$dotenv = Dotenv::createImmutable(__DIR__ . '/..');
$dotenv->load();

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

if (!isLoggedIn()) {
    http_response_code(401);
    echo json_encode(['success' => false, 'error' => 'Niet geautoriseerd.']);
    exit;
}

try {
    $db = getDbConnection();
    
    $blockId = $_GET['block_id'] ?? null;
    
    if (!$blockId) {
        jsonResponse(['success' => false, 'error' => 'Missing block_id'], 400);
    }
    
    // Get block info
    $stmt = $db->prepare("
        SELECT db.*, bt.name as template_name
        FROM daily_blocks db
        LEFT JOIN block_templates bt ON db.template_id = bt.id
        WHERE db.id = ?
    ");
    $stmt->execute([$blockId]);
    $block = $stmt->fetch();
    
    if (!$block) {
        jsonResponse(['success' => false, 'error' => 'Block not found'], 404);
    }
    
    // Get transmissions in this block
    $stmt = $db->prepare("
        SELECT t.*, c.title, c.series_code
        FROM transmissions t
        JOIN infomercials c ON t.infomercial_id = c.id
        WHERE t.start_date = ?
        AND t.channel = ?
        AND t.start_time >= ?
        AND t.start_time < ?
        ORDER BY t.start_time ASC
    ");
    $stmt->execute([
        $block['block_date'],
        $block['channel'],
        $block['actual_start_time'],
        $block['actual_end_time'] ?? '23:59:59'
    ]);
    $transmissions = $stmt->fetchAll();
    
    jsonResponse([
        'success' => true,
        'block' => $block,
        'transmissions' => $transmissions
    ]);
    
} catch (Exception $e) {
    jsonResponse(['success' => false, 'error' => $e->getMessage()], 500);
}