<?php
/**
 * Store REST API Controller
 * 
 * Provides REST endpoints for store settings management.
 * 
 * @package WooNooW
 */

namespace WooNooW\API;

use WooNooW\Compat\StoreSettingsProvider;
use WooNooW\Compat\CustomerSettingsProvider;
use WP_REST_Controller;
use WP_REST_Server;
use WP_REST_Request;
use WP_REST_Response;
use WP_Error;

class StoreController extends WP_REST_Controller {
    
    /**
     * Namespace
     */
    protected $namespace = 'woonoow/v1';
    
    /**
     * Rest base
     */
    protected $rest_base = 'store';
    
    /**
     * Register routes
     */
    public function register_routes() {
        // GET /woonoow/v1/store/branding (PUBLIC - for login page)
        register_rest_route($this->namespace, '/' . $this->rest_base . '/branding', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_branding'],
                'permission_callback' => '__return_true', // Public endpoint
            ],
        ]);
        
        // GET /woonoow/v1/store/settings
        register_rest_route($this->namespace, '/' . $this->rest_base . '/settings', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_settings'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // POST /woonoow/v1/store/settings
        register_rest_route($this->namespace, '/' . $this->rest_base . '/settings', [
            [
                'methods' => WP_REST_Server::EDITABLE,
                'callback' => [$this, 'save_settings'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // GET /woonoow/v1/store/countries
        register_rest_route($this->namespace, '/' . $this->rest_base . '/countries', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_countries'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // GET /woonoow/v1/store/timezones
        register_rest_route($this->namespace, '/' . $this->rest_base . '/timezones', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_timezones'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // GET /woonoow/v1/store/currencies
        register_rest_route($this->namespace, '/' . $this->rest_base . '/currencies', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_currencies'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // GET /woonoow/v1/store/customer-settings
        register_rest_route($this->namespace, '/' . $this->rest_base . '/customer-settings', [
            [
                'methods' => WP_REST_Server::READABLE,
                'callback' => [$this, 'get_customer_settings'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
        
        // POST /woonoow/v1/store/customer-settings
        register_rest_route($this->namespace, '/' . $this->rest_base . '/customer-settings', [
            [
                'methods' => WP_REST_Server::EDITABLE,
                'callback' => [$this, 'save_customer_settings'],
                'permission_callback' => [$this, 'check_permission'],
            ],
        ]);
    }
    
    /**
     * Get store branding (PUBLIC - for login page)
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response Response object
     */
    public function get_branding(WP_REST_Request $request) {
        $branding = [
            'store_name' => get_option('blogname', 'WooNooW'),
            'store_logo' => get_option('woonoow_store_logo', ''),
            'store_icon' => get_option('woonoow_store_icon', ''),
            'store_tagline' => get_option('woonoow_store_tagline', ''),
        ];
        
        $response = rest_ensure_response($branding);
        $response->header('Cache-Control', 'max-age=300'); // Cache for 5 minutes
        
        return $response;
    }
    
    /**
     * Get store settings
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_settings(WP_REST_Request $request) {
        try {
            $settings = StoreSettingsProvider::get_settings();
            
            $response = rest_ensure_response($settings);
            $response->header('Cache-Control', 'max-age=60');
            
            return $response;
        } catch (\Exception $e) {
            return new WP_Error(
                'get_settings_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Save store settings
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function save_settings(WP_REST_Request $request) {
        $settings = $request->get_json_params();
        
        if (empty($settings)) {
            return new WP_Error(
                'missing_settings',
                'No settings provided',
                ['status' => 400]
            );
        }
        
        try {
            $result = StoreSettingsProvider::save_settings($settings);
            
            if (!$result) {
                return new WP_Error(
                    'save_failed',
                    'Failed to save settings',
                    ['status' => 500]
                );
            }
            
            return rest_ensure_response([
                'success' => true,
                'message' => 'Settings saved successfully',
                'settings' => StoreSettingsProvider::get_settings(),
            ]);
        } catch (\Exception $e) {
            return new WP_Error(
                'save_settings_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Get countries
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_countries(WP_REST_Request $request) {
        try {
            $countries = StoreSettingsProvider::get_countries();
            
            $response = rest_ensure_response($countries);
            $response->header('Cache-Control', 'max-age=3600'); // Cache for 1 hour
            
            return $response;
        } catch (\Exception $e) {
            return new WP_Error(
                'get_countries_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Get timezones
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_timezones(WP_REST_Request $request) {
        try {
            $timezones = StoreSettingsProvider::get_timezones();
            
            $response = rest_ensure_response($timezones);
            $response->header('Cache-Control', 'max-age=3600'); // Cache for 1 hour
            
            return $response;
        } catch (\Exception $e) {
            return new WP_Error(
                'get_timezones_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Get currencies
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_currencies(WP_REST_Request $request) {
        try {
            $currencies = StoreSettingsProvider::get_currencies();
            
            $response = rest_ensure_response($currencies);
            $response->header('Cache-Control', 'max-age=3600'); // Cache for 1 hour
            
            return $response;
        } catch (\Exception $e) {
            return new WP_Error(
                'get_currencies_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Get customer settings
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function get_customer_settings(WP_REST_Request $request) {
        try {
            $settings = CustomerSettingsProvider::get_settings();
            
            $response = rest_ensure_response($settings);
            $response->header('Cache-Control', 'max-age=60');
            
            return $response;
        } catch (\Exception $e) {
            return new WP_Error(
                'get_customer_settings_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Save customer settings
     * 
     * @param WP_REST_Request $request Request object
     * @return WP_REST_Response|WP_Error Response object or error
     */
    public function save_customer_settings(WP_REST_Request $request) {
        try {
            $settings = $request->get_json_params();
            
            if (empty($settings)) {
                return new WP_Error(
                    'invalid_settings',
                    __('Invalid settings data', 'woonoow'),
                    ['status' => 400]
                );
            }
            
            $updated = CustomerSettingsProvider::update_settings($settings);
            
            if (!$updated) {
                return new WP_Error(
                    'update_failed',
                    __('Failed to update customer settings', 'woonoow'),
                    ['status' => 500]
                );
            }
            
            // Return updated settings
            $new_settings = CustomerSettingsProvider::get_settings();
            
            return new WP_REST_Response([
                'success' => true,
                'message' => __('Customer settings updated successfully', 'woonoow'),
                'settings' => $new_settings,
            ], 200);
            
        } catch (\Exception $e) {
            return new WP_Error(
                'save_customer_settings_failed',
                $e->getMessage(),
                ['status' => 500]
            );
        }
    }
    
    /**
     * Check if user has permission
     * 
     * @return bool True if user has permission
     */
    public function check_permission() {
        // Check WooCommerce capability first, fallback to manage_options
        return current_user_can('manage_woocommerce') || current_user_can('manage_options');
    }
}