<?php
/**
 * Webhook Logger for Nano Banana Pro
 * Sends user actions and generated images to Make.com webhook
 */

/**
 * Send action data to webhook
 *
 * @param array $data Data to send to webhook
 * @return array ['success' => bool, 'http_code' => int, 'response' => string]
 */
function sendToWebhook($data) {
    // Webhook URL (Make.com integration)
    $webhookUrl = 'https://hook.us1.make.celonis.com/sbhcpk0athbdbxxmgijxc5sbwtjsg33h';

    // Add timestamp
    $data['timestamp'] = date('Y-m-d H:i:s');
    $data['timezone'] = date_default_timezone_get();

    // Log webhook send attempt
    error_log("Sending to webhook: " . json_encode(array_keys($data)));

    try {
        $ch = curl_init($webhookUrl);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
        curl_setopt($ch, CURLOPT_HTTPHEADER, [
            'Content-Type: application/json'
        ]);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 10); // 10 second timeout
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);

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

        if ($curlError) {
            error_log("Webhook cURL Error: " . $curlError);
            return [
                'success' => false,
                'http_code' => 0,
                'error' => $curlError
            ];
        }

        if ($httpCode === 200 || $httpCode === 201 || $httpCode === 202) {
            error_log("Webhook sent successfully (HTTP $httpCode)");
            return [
                'success' => true,
                'http_code' => $httpCode,
                'response' => $response
            ];
        } else {
            error_log("Webhook failed (HTTP $httpCode): " . $response);
            return [
                'success' => false,
                'http_code' => $httpCode,
                'response' => $response
            ];
        }

    } catch (Exception $e) {
        error_log("Webhook exception: " . $e->getMessage());
        return [
            'success' => false,
            'error' => $e->getMessage()
        ];
    }
}

/**
 * Log image generation to webhook
 *
 * @param string $prompt The prompt used
 * @param string $imageBase64 Base64 encoded image
 * @param string $mimeType Image MIME type
 * @param array $settings Generation settings
 * @param string $userEmail User email
 * @param string $actionType Type of action (generate, edit, upload)
 */
function logImageGeneration($prompt, $imageBase64, $mimeType, $settings, $userEmail, $actionType = 'generate') {
    $webhookData = [
        'client' => 'Internal',  // Hardcoded for Nano Banana Pro
        'deliverableNumber' => 'NANO-' . time(), // Auto-generated
        'userEmail' => $userEmail,
        'generationType' => 'Nano Banana Pro - Imagen 3',
        'actionType' => $actionType, // generate, edit, upload
        'prompt' => $prompt,
        'settings' => $settings,
        'imageFile' => 'data:' . $mimeType . ';base64,' . $imageBase64
    ];

    return sendToWebhook($webhookData);
}

/**
 * Log prompt enhancement to webhook
 *
 * @param string $originalPrompt Original scene description
 * @param string $enhancedPrompt AI-enhanced prompt
 * @param array $settings Studio settings (camera, lens, application, etc.)
 * @param string $userEmail User email
 */
function logPromptEnhancement($originalPrompt, $enhancedPrompt, $settings, $userEmail) {
    $webhookData = [
        'client' => 'Internal',
        'deliverableNumber' => 'NANO-PROMPT-' . time(),
        'userEmail' => $userEmail,
        'generationType' => 'Nano Banana Pro - Prompt Enhancement',
        'actionType' => 'prompt_enhancement',
        'originalPrompt' => $originalPrompt,
        'enhancedPrompt' => $enhancedPrompt,
        'settings' => $settings
    ];

    return sendToWebhook($webhookData);
}

/**
 * Log user action to webhook (general purpose)
 *
 * @param string $action Action name
 * @param array $data Action data
 * @param string $userEmail User email
 */
function logUserAction($action, $data, $userEmail) {
    $webhookData = [
        'client' => 'Internal',
        'deliverableNumber' => 'NANO-ACTION-' . time(),
        'userEmail' => $userEmail,
        'generationType' => 'Nano Banana Pro - User Action',
        'action' => $action,
        'data' => $data
    ];

    return sendToWebhook($webhookData);
}