<?php

namespace app\common\service;

use think\facade\Db;
use think\facade\Log;

abstract class BasePaymentService
{
    // 支付配置
    protected $config;

    // 支付方式
    protected $payMethod;

    // 支付平台配置
    protected $payConfig;

    /**
     * 初始化支付服务
     */
    public function __construct($payMethod, $payConfigId = 0)
    {
        $this->payMethod = $payMethod;

        // 获取支付配置
        $this->payConfig = $this->getPayConfig($payMethod, $payConfigId);
        if (!$this->payConfig) {
            throw new \Exception('支付配置不存在或已禁用');
        }

        // 初始化支付平台配置
        $this->initConfig();
    }

    /**
     * 获取支付配置
     */
    public function getPayConfig($payMethod, $payConfigId = 0)
    {
        $query = Db::table('ba_pay_config')
            ->where('type', $payMethod == 'wechat' ? 1 : 2)
            ->where('status', 1);

        if ($payConfigId > 0) {
            $query->where('id', $payConfigId);
        }

        return $query->order('id', 'desc')->find();
    }

    /**
     * 初始化配置（子类实现）
     */
    abstract protected function initConfig();

    /**
     * 生成支付二维码
     */
    abstract public function createQrCode($orderNo, $amount, $subject, $body = '');

    /**
     * 处理支付回调
     */
    abstract public function handleNotify($input);

    /**
     * 查询支付订单
     */
    abstract public function queryOrder($orderNo);

    /**
     * 验证签名
     */
    abstract protected function verifySign($data, $sign);

    /**
     * 生成签名
     */
    abstract protected function generateSign($data);

    /**
     * 记录支付日志
     */
    protected function log($message, $data = [], $level = 'info')
    {
        $logData = [
            'message' => $message,
            'data' => $data,
            'pay_method' => $this->payMethod,
            'time' => date('Y-m-d H:i:s')
        ];

        Log::write("支付服务: " . json_encode($logData), $level);
    }
}