<?php

namespace Common\Model;

use Think\Model;

/**
 * 门店服务区域操作日志模型
 * Class StoreServiceAreaLogModel
 * @package Common\Model
 */
class StoreServiceAreaLogModel extends BaseModel
{
    protected $tableName = 'store_service_area_log';
    
    protected $fields = array(
        'id',                    // int(11) NOT NULL AUTO_INCREMENT COMMENT '主键ID'
        'area_id',               // int(11) NOT NULL COMMENT '服务区域ID'
        'store_id',              // int(11) NOT NULL COMMENT '门店ID'
        'action_type',           // tinyint(2) NOT NULL COMMENT '操作类型：1=创建，2=修改，3=删除，4=启用，5=禁用'
        'old_data',              // text COMMENT '修改前数据（JSON格式）'
        'new_data',              // text COMMENT '修改后数据（JSON格式）'
        'operator_id',           // int(11) DEFAULT '0' COMMENT '操作员ID'
        'operator_name',         // varchar(50) DEFAULT '' COMMENT '操作员姓名'
        'create_time',           // int(11) NOT NULL DEFAULT '0' COMMENT '操作时间'
        'ip_address',            // varchar(45) DEFAULT '' COMMENT '操作IP地址'
        'user_agent',            // varchar(500) DEFAULT '' COMMENT '用户代理信息'
    );

    // 操作类型常量
    const ACTION_CREATE = 1;  // 创建
    const ACTION_UPDATE = 2;  // 修改
    const ACTION_DELETE = 3;  // 删除
    const ACTION_ENABLE = 4;  // 启用
    const ACTION_DISABLE = 5; // 禁用

    /**
     * 记录操作日志
     * @param int $areaId 服务区域ID
     * @param int $storeId 门店ID
     * @param int $actionType 操作类型
     * @param array $oldData 修改前数据
     * @param array $newData 修改后数据
     * @param int $operatorId 操作员ID
     * @param string $operatorName 操作员姓名
     * @return bool|int
     */
    public function addLog($areaId, $storeId, $actionType, $oldData = null, $newData = null, $operatorId = 0, $operatorName = '')
    {
        $data = array(
            'area_id' => $areaId,
            'store_id' => $storeId,
            'action_type' => $actionType,
            'old_data' => $oldData ? json_encode($oldData, JSON_UNESCAPED_UNICODE) : '',
            'new_data' => $newData ? json_encode($newData, JSON_UNESCAPED_UNICODE) : '',
            'operator_id' => $operatorId,
            'operator_name' => $operatorName,
            'create_time' => time(),
            'ip_address' => $this->getClientIp(),
            'user_agent' => isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : ''
        );
        
        return $this->add($data);
    }

    /**
     * 获取服务区域操作日志
     * @param int $areaId 服务区域ID
     * @param int $limit 限制条数
     * @return array
     */
    public function getAreaLogs($areaId, $limit = 50)
    {
        return $this->where(array('area_id' => $areaId))
                   ->order('create_time DESC')
                   ->limit($limit)
                   ->select();
    }

    /**
     * 获取门店所有服务区域操作日志
     * @param int $storeId 门店ID
     * @param int $limit 限制条数
     * @return array
     */
    public function getStoreLogs($storeId, $limit = 100)
    {
        return $this->where(array('store_id' => $storeId))
                   ->order('create_time DESC')
                   ->limit($limit)
                   ->select();
    }

    /**
     * 获取操作类型描述
     * @param int $actionType 操作类型
     * @return string
     */
    public function getActionTypeDesc($actionType)
    {
        $types = array(
            self::ACTION_CREATE => '创建服务区域',
            self::ACTION_UPDATE => '修改服务区域',
            self::ACTION_DELETE => '删除服务区域',
            self::ACTION_ENABLE => '启用服务区域',
            self::ACTION_DISABLE => '禁用服务区域'
        );
        
        return isset($types[$actionType]) ? $types[$actionType] : '未知操作';
    }

    /**
     * 获取客户端IP地址
     * @return string
     */
    private function getClientIp()
    {
        $ip = '';
        if (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && !empty($_SERVER['HTTP_X_FORWARDED_FOR'])) {
            $ips = explode(',', $_SERVER['HTTP_X_FORWARDED_FOR']);
            $ip = trim($ips[0]);
        } elseif (isset($_SERVER['HTTP_X_REAL_IP']) && !empty($_SERVER['HTTP_X_REAL_IP'])) {
            $ip = $_SERVER['HTTP_X_REAL_IP'];
        } elseif (isset($_SERVER['REMOTE_ADDR'])) {
            $ip = $_SERVER['REMOTE_ADDR'];
        }
        
        return $ip;
    }

    /**
     * 清理过期日志
     * @param int $days 保留天数，默认90天
     * @return bool
     */
    public function cleanExpiredLogs($days = 90)
    {
        $expireTime = time() - ($days * 24 * 3600);
        return $this->where(array('create_time' => array('lt', $expireTime)))->delete();
    }

    /**
     * 获取操作统计
     * @param int $storeId 门店ID
     * @param int $startTime 开始时间
     * @param int $endTime 结束时间
     * @return array
     */
    public function getOperationStats($storeId, $startTime = null, $endTime = null)
    {
        $map = array('store_id' => $storeId);
        
        if ($startTime) {
            $map['create_time'][] = array('egt', $startTime);
        }
        if ($endTime) {
            $map['create_time'][] = array('elt', $endTime);
        }
        
        $stats = $this->where($map)
                     ->field('action_type, COUNT(*) as count')
                     ->group('action_type')
                     ->select();
        
        $result = array();
        foreach ($stats as $stat) {
            $result[$stat['action_type']] = array(
                'count' => $stat['count'],
                'desc' => $this->getActionTypeDesc($stat['action_type'])
            );
        }
        
        return $result;
    }
}