<?php
declare (strict_types = 1);

namespace app\model\api;

use library\basic\BaseModel;
use library\traits\ModelTrait;
use think\Model;

/**
 * 聊天次数购买订单模型
 * @mixin \think\Model
 */
class ChatOrder extends BaseModel
{
    use ModelTrait;
    
    protected $name = 'chat_order';
    
    // 订单状态
    const STATUS_PENDING = 0;   // 待支付
    const STATUS_PAID = 1;      // 已支付
    const STATUS_CANCEL = 2;    // 已取消
    
    /**
     * 创建订单
     * @param int $userId 用户ID
     * @param int $chatNum 购买次数
     * @param int $price 价格（积分）
     * @return self
     */
    public static function createOrder(int $userId, int $chatNum, int $price): self
    {
        $orderNo = self::generateOrderNo();
        
        return self::create([
            'order_no' => $orderNo,
            'user_id' => $userId,
            'chat_num' => $chatNum,
            'price' => $price,
            'status' => self::STATUS_PENDING,
            'create_time' => time(),
        ]);
    }
    
    /**
     * 生成订单号
     * @return string
     */
    public static function generateOrderNo(): string
    {
        return 'C' . date('YmdHis') . rand(1000, 9999);
    }
    
    /**
     * 支付成功
     * @param int $orderId 订单ID
     * @return bool
     */
    public static function paySuccess(int $orderId): bool
    {
        return self::where('id', $orderId)
            ->where('status', self::STATUS_PENDING)
            ->update([
                'status' => self::STATUS_PAID,
                'pay_time' => time(),
                'update_time' => time(),
            ]) !== false;
    }
    
    /**
     * 取消订单
     * @param int $orderId 订单ID
     * @return bool
     */
    public static function cancelOrder(int $orderId): bool
    {
        return self::where('id', $orderId)
            ->where('status', self::STATUS_PENDING)
            ->update([
                'status' => self::STATUS_CANCEL,
                'update_time' => time(),
            ]) !== false;
    }
    
    /**
     * 获取用户订单列表
     * @param int $userId 用户ID
     * @param int $page 页码
     * @param int $limit 每页数量
     * @return array
     */
    public static function getUserOrders(int $userId, int $page = 1, int $limit = 10): array
    {
        $where = ['user_id' => $userId];
        
        $data = self::where($where)
            ->order('id desc')
            ->page($page, $limit)
            ->select();
        
        $total = self::where($where)->count();
        
        return [
            'list' => $data ? $data->toArray() : [],
            'total' => $total,
            'page' => $page,
            'limit' => $limit,
        ];
    }
    
    /**
     * 根据订单号查询
     * @param string $orderNo 订单号
     * @return self|null
     */
    public static function findByOrderNo(string $orderNo): ?self
    {
        return self::where('order_no', $orderNo)->find();
    }
    
    /**
     * 获取状态文本
     * @param int $status 状态
     * @return string
     */
    public static function getStatusText(int $status): string
    {
        $statusMap = [
            self::STATUS_PENDING => '待支付',
            self::STATUS_PAID => '已支付',
            self::STATUS_CANCEL => '已取消',
        ];
        
        return $statusMap[$status] ?? '未知';
    }
}