<?php
/**
 * Document Editor API Endpoint
 * API для подготовки документов к редактированию
 */

header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type');

// Обработка preflight запросов
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(200);
    exit();
}

require_once __DIR__ . '/../FileStorageManager.php';
require_once __DIR__ . '/../../shared/Logger.php';

try {
    $input = json_decode(file_get_contents('php://input'), true);
    
    if (!$input) {
        throw new Exception('Invalid JSON input');
    }
    
    $action = $input['action'] ?? '';
    $recordId = $input['record_id'] ?? '';
    $fileName = $input['file_name'] ?? '';
    
    if (empty($recordId)) {
        throw new Exception('Record ID is required');
    }
    
    CRM_Logger::info("Document editor API called", [
        'action' => $action,
        'record_id' => $recordId,
        'file_name' => $fileName
    ]);
    
    $fileManager = new FileStorageManager();
    
    switch ($action) {
        case 'prepare_edit':
            $result = $fileManager->prepareForEditing($recordId, $fileName);
            break;
            
        case 'sync_changes':
            $result = $fileManager->syncAfterEditing($recordId);
            break;
            
        case 'get_edit_status':
            $result = $fileManager->getEditStatus($recordId);
            break;
            
        default:
            throw new Exception('Unknown action: ' . $action);
    }
    
    echo json_encode($result, JSON_UNESCAPED_UNICODE);
    
} catch (Exception $e) {
    CRM_Logger::error("Document editor API error", [
        'error' => $e->getMessage(),
        'input' => $input ?? null
    ]);
    
    http_response_code(400);
    echo json_encode([
        'success' => false,
        'error' => $e->getMessage()
    ], JSON_UNESCAPED_UNICODE);
}