<?php

namespace addon\aikefu\event;

use addon\aikefu\model\Config as KefuConfigModel;

/**
 * 获取智能客服配置信息
 */
class KefuGetInfo
{
    /**
     * 处理获取配置信息事件
     * @param array $data 事件数据
     * @return array
     */
    public function handle($data)
    {
        $site_id = $data['site_id'] ?? 0;
        $member_id = $data['member_id'] ?? 0;
        $client_info = $data['client_info'] ?? [];

        try {
            // 获取智能客服配置
            $kefu_config_model = new KefuConfigModel();
            $config_info = $kefu_config_model->getConfig($site_id);

            $response_data = [
                'service_info' => [
                    'name' => '智能客服',
                    'version' => '1.0.0',
                    'enabled' => false,
                    'status' => 'disabled'
                ],
                'features' => [],
                'limits' => [
                    'max_message_length' => 4000,
                    'max_conversation_history' => 100,
                    'rate_limit' => [
                        'requests_per_minute' => 60,
                        'requests_per_hour' => 1000
                    ]
                ],
                'endpoints' => [
                    'chat' => '/api/chat',
                    'chat_stream' => '/api/chatStream',
                    'create_conversation' => '/api/createConversation',
                    'get_history' => '/api/getHistory',
                    'clear_conversation' => '/api/clearConversation',
                    'health' => '/api/health',
                    'info' => '/api/info'
                ],
                'client_info' => $client_info,
                'server_info' => [
                    'php_version' => PHP_VERSION,
                    'server_time' => date('Y-m-d H:i:s'),
                    'timezone' => date_default_timezone_get()
                ]
            ];

            // 处理配置信息
            if (!empty($config_info['data']['value'])) {
                $config = $config_info['data']['value'];
                
                // 服务状态
                $response_data['service_info']['enabled'] = $config['status'] == 1;
                $response_data['service_info']['status'] = $config['status'] == 1 ? 'enabled' : 'disabled';
                
                // 可用功能
                if ($config['status'] == 1) {
                    $response_data['features'] = [
                        'chat' => true,
                        'chat_stream' => true,
                        'conversation_management' => true,
                        'history_management' => true
                    ];
                }
                
                // API端点信息（仅在启用时显示详细配置）
                if ($config['status'] == 1) {
                    $response_data['api_config'] = [
                        'base_url' => $config['base_url'] ?? '',
                        'chat_endpoint' => $config['chat_endpoint'] ?? '',
                        'supports_streaming' => true,
                        'authentication' => 'bearer_token'
                    ];
                }
                
                // 限制配置（如果有的话）
                if (isset($config['max_message_length'])) {
                    $response_data['limits']['max_message_length'] = intval($config['max_message_length']);
                }
                if (isset($config['rate_limit_per_minute'])) {
                    $response_data['limits']['rate_limit']['requests_per_minute'] = intval($config['rate_limit_per_minute']);
                }
            }

            // 添加使用统计信息（如果需要的话）
            if ($member_id > 0) {
                $response_data['user_stats'] = [
                    'can_use_service' => $response_data['service_info']['enabled'],
                    'member_id' => $member_id,
                    'site_id' => $site_id
                ];
            }

            return [
                'code' => 0,
                'message' => '获取配置信息成功',
                'data' => $response_data
            ];
            
        } catch (\Exception $e) {
            return [
                'code' => -1,
                'message' => '获取配置信息失败：' . $e->getMessage(),
                'data' => [
                    'service_info' => [
                        'name' => '智能客服',
                        'status' => 'error'
                    ],
                    'error' => $e->getMessage()
                ]
            ];
        }
    }
}