<?php
/**
 * Form Submission Handler
 * Processes the form and sends data to webhook
 */

// Enable error reporting for debugging
error_reporting(E_ALL);
ini_set('display_errors', 1);
ini_set('log_errors', 1);

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

try {
    // Load dependencies
    require_once __DIR__ . '/vendor/autoload.php';
    require_once __DIR__ . '/AuthMiddleware.php';
    require_once __DIR__ . '/BoxService.php';
    require_once __DIR__ . '/ApplicationLogger.php';

    // Check authentication
    $auth = new AuthMiddleware();
    $user = $auth->requireAuth();

    // Initialize logger
    $logger = new ApplicationLogger();

    // Check if this is a POST request
    if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
        http_response_code(405);
        echo json_encode([
            'success' => false,
            'error' => 'Method not allowed'
        ]);
        exit;
    }

    // Get request body
    $input = json_decode(file_get_contents('php://input'), true);

    // Validate required fields
    $requiredFields = ['boxId', 'supplyDate', 'liveDate', 'endDate', 'boxData'];
    foreach ($requiredFields as $field) {
        if (!isset($input[$field]) || empty($input[$field])) {
            http_response_code(400);
            echo json_encode([
                'success' => false,
                'error' => "Missing required field: $field"
            ]);
            exit;
        }
    }

    // Load configuration
    $config = require __DIR__ . '/config.php';
    $webhookConfig = $config['webhook'];

    // Prepare webhook payload
    $payload = [
        'userEmail' => $user['email'],
        'userName' => $user['name'],
        'boxId' => $input['boxId'],
        'masterCampaignNumber' => $input['boxData']['masterCampaignNumber'] ?? 'N/A',
        'masterCampaignId' => $input['boxData']['masterCampaignId'] ?? null,
        'supplyDate' => $input['supplyDate'],
        'liveDate' => $input['liveDate'],
        'endDate' => $input['endDate'],
        'boxContents' => [
            'folderName' => $input['boxData']['folderName'] ?? '',
            'totalItems' => $input['boxData']['contents']['total'] ?? 0,
            'folders' => $input['boxData']['contents']['folders'] ?? [],
            'files' => $input['boxData']['contents']['files'] ?? []
        ],
        'submittedAt' => date('Y-m-d H:i:s')
    ];

    // Send to webhook
    // Make.com webhooks typically don't need API key headers
    // The URL itself is the authentication
    $ch = curl_init($webhookConfig['url']);

    $jsonPayload = json_encode($payload);
    error_log('Sending to webhook: ' . $webhookConfig['url']);
    error_log('Payload: ' . $jsonPayload);

    curl_setopt_array($ch, [
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => $jsonPayload,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => $webhookConfig['timeout'],
        CURLOPT_HTTPHEADER => [
            'Content-Type: application/json',
            'x-make-apikey: ' . $webhookConfig['api_key']
        ]
    ]);

    $webhookResponse = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    $curlError = curl_error($ch);
    curl_close($ch);

    if ($curlError) {
        throw new Exception('Webhook request failed: ' . $curlError);
    }

    // Parse webhook response
    $webhookData = json_decode($webhookResponse, true);

    // Check if webhook returned success
    if ($httpCode >= 200 && $httpCode < 300) {
        // Log successful submission
        $logger->logAssetSubmission(
            $user,
            $input['boxId'],
            $input['boxData']['masterCampaignNumber'] ?? 'N/A',
            [
                'supply' => $input['supplyDate'],
                'live' => $input['liveDate'],
                'end' => $input['endDate']
            ],
            'success'
        );

        // Webhook accepted the data
        echo json_encode([
            'success' => true,
            'message' => 'Submission successful',
            'webhookResponse' => $webhookData,
            'webhookStatus' => $httpCode
        ]);
    } else {
        // Log failed submission
        $logger->logAssetSubmission(
            $user,
            $input['boxId'],
            $input['boxData']['masterCampaignNumber'] ?? 'N/A',
            [
                'supply' => $input['supplyDate'],
                'live' => $input['liveDate'],
                'end' => $input['endDate']
            ],
            'error',
            'Webhook returned status ' . $httpCode
        );
        // Webhook rejected or failed - return 200 to client but indicate webhook failure
        error_log('Webhook failed with status: ' . $httpCode);
        error_log('Webhook response: ' . $webhookResponse);

        echo json_encode([
            'success' => false,
            'error' => 'Webhook processing failed',
            'webhookResponse' => $webhookData ?? $webhookResponse,
            'webhookStatus' => $httpCode,
            'message' => 'The webhook returned status ' . $httpCode . '. Please check the webhook configuration.'
        ]);
    }

} catch (Exception $e) {
    // Log error
    error_log('Submission error: ' . $e->getMessage());
    error_log('Stack trace: ' . $e->getTraceAsString());

    http_response_code(500);
    echo json_encode([
        'success' => false,
        'error' => 'Server error occurred during submission',
        'debug' => $e->getMessage(),
        'file' => $e->getFile(),
        'line' => $e->getLine()
    ]);
}