igny8/igny8-wp-plugin/includes/class-igny8-api.php

<?php
/**
 * IGNY8 API Client Class
 *
 * Handles all communication with IGNY8 API v1.0
 * Follows WORDPRESS-PLUGIN-INTEGRATION.md guidelines
 *
 * @package Igny8Bridge
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

/**
 * Igny8API Class
 */
class Igny8API {
    
    /**
     * API base URL
     *
     * @var string
     */
    private $base_url = 'https://api.igny8.com/api/v1';
    
    /**
     * API key (used as access token)
     *
     * @var string|null
     */
    private $access_token = null;
    
    /**
     * Whether authentication is via API key (always true now)
     *
     * @var bool
     */
    private $api_key_auth = true;
    
    /**
     * Constructor
     * Only uses API key for authentication
     */
    public function __construct() {
        if (function_exists('igny8_get_secure_option')) {
            $api_key = igny8_get_secure_option('igny8_api_key');
        } else {
            $api_key = get_option('igny8_api_key');
        }

        // API key is the only authentication method
        if (!empty($api_key)) {
            $this->access_token = $api_key;
            $this->api_key_auth = true;
        }
    }
    
    /**
     * Connect using API key
     *
     * @param string $api_key API key from IGNY8 app
     * @return bool True on success, false on failure
     */
    public function connect($api_key) {
        if (empty($api_key)) {
            return false;
        }
        
        // Store API key
        if (function_exists('igny8_store_secure_option')) {
            igny8_store_secure_option('igny8_api_key', $api_key);
        } else {
            update_option('igny8_api_key', $api_key);
        }
        
        $this->access_token = $api_key;
        $this->api_key_auth = true;
        
        // Test connection by making a simple API call
        $test_response = $this->get('/auth/sites/');
        
        if ($test_response['success']) {
            $timestamp = current_time('timestamp');
            update_option('igny8_last_api_health_check', $timestamp);
            return true;
        }
        
        return false;
    }
    
    /**
     * Parse unified API response
     *
     * @param array|WP_Error $response HTTP response
     * @return array Parsed response
     */
    private function parse_response($response) {
        if (is_wp_error($response)) {
            return array(
                'success' => false,
                'error' => $response->get_error_message(),
                'http_status' => 0
            );
        }
        
        $status_code = wp_remote_retrieve_response_code($response);
        $raw_body = wp_remote_retrieve_body($response);
        $body = json_decode($raw_body, true);
        
        // Handle non-JSON responses
        if (!$body) {
            return array(
                'success' => false,
                'error' => 'Invalid response format: ' . substr($raw_body, 0, 100),
                'http_status' => $status_code
            );
        }
        
        // Check if response follows unified format
        if (isset($body['success'])) {
            $body['http_status'] = $status_code;
            return $body;
        }
        
        // Legacy format - wrap in unified format
        if ($status_code >= 200 && $status_code < 300) {
            return array(
                'success' => true,
                'data' => $body,
                'http_status' => $status_code
            );
        } else {
            return array(
                'success' => false,
                'error' => $body['detail'] ?? 'HTTP ' . $status_code . ' error',
                'http_status' => $status_code,
                'raw_error' => $body
            );
        }
    }
    
    /**
     * Get headers with authentication
     *
     * @return array Headers array
     * @throws Exception If not authenticated
     */
    private function get_headers() {
        if (!$this->access_token) {
            throw new Exception('Not authenticated');
        }
        
        return array(
            'Authorization' => 'Bearer ' . $this->access_token,
            'Content-Type' => 'application/json'
        );
    }
    
    /**
     * Make GET request
     *
     * @param string $endpoint API endpoint
     * @return array Response data
     */
    public function get($endpoint) {
        $url = $this->base_url . $endpoint;
        $headers = $this->get_headers();
        
        // Debug logging (enable with WP_DEBUG or IGNY8_DEBUG constant)
        $debug_enabled = (defined('WP_DEBUG') && WP_DEBUG) || (defined('IGNY8_DEBUG') && IGNY8_DEBUG);
        if ($debug_enabled) {
            error_log(sprintf(
                'IGNY8 DEBUG GET: %s | Headers: %s',
                $url,
                json_encode(array_merge($headers, array('Authorization' => 'Bearer ***')))
            ));
        }
        
        $response = wp_remote_get($url, array(
            'headers' => $headers,
            'timeout' => 30
        ));
        
        // Debug response
        $debug_enabled = (defined('WP_DEBUG') && WP_DEBUG) || (defined('IGNY8_DEBUG') && IGNY8_DEBUG);
        if ($debug_enabled) {
            $status_code = wp_remote_retrieve_response_code($response);
            $response_body = wp_remote_retrieve_body($response);
            error_log(sprintf(
                'IGNY8 DEBUG RESPONSE: Status=%s | Body=%s',
                $status_code,
                substr($response_body, 0, 500)
            ));
        }
        
        $body = $this->parse_response($response);
        
        // API keys don't expire, so no refresh logic needed
        // If 401, the API key is invalid or revoked
        
        return $body;
    }
    
    /**
     * Make POST request
     *
     * @param string $endpoint API endpoint
     * @param array $data Request data
     * @return array Response data
     */
    public function post($endpoint, $data) {
        $response = wp_remote_post($this->base_url . $endpoint, array(
            'headers' => $this->get_headers(),
            'body' => json_encode($data),
            'timeout' => 60
        ));
        
        $body = $this->parse_response($response);
        
        // API keys don't expire, so no refresh logic needed
        
        return $body;
    }
    
    /**
     * Make PUT request
     *
     * @param string $endpoint API endpoint
     * @param array $data Request data
     * @return array Response data
     */
    public function put($endpoint, $data) {
        $response = wp_remote_request($this->base_url . $endpoint, array(
            'method' => 'PUT',
            'headers' => $this->get_headers(),
            'body' => json_encode($data),
            'timeout' => 60
        ));
        
        return $this->parse_response($response);
    }
    
    /**
     * Make DELETE request
     *
     * @param string $endpoint API endpoint
     * @return array Response data
     */
    public function delete($endpoint) {
        $response = wp_remote_request($this->base_url . $endpoint, array(
            'method' => 'DELETE',
            'headers' => $this->get_headers(),
            'timeout' => 30
        ));
        
        return $this->parse_response($response);
    }
    
    /**
     * Check if authenticated
     *
     * @return bool True if authenticated
     */
    public function is_authenticated() {
        return !empty($this->access_token);
    }
    
    /**
     * Get access token
     *
     * @return string|null Access token
     */
    public function get_access_token() {
        return $this->access_token;
    }
}