package service

import (
	"encoding/json"
	"fmt"
	"io"
	"net/http"
	"qnc-server/app/user/cmd/api/internal/config"
	"strings"

	"github.com/tidwall/gjson"
)

type TianjuService struct {
	config config.TianjuConfig
}

func NewTianjuService(c config.Config) *TianjuService {
	return &TianjuService{
		config: c.TianjuConfig,
	}
}

func (t *TianjuService) Request(apiPath string, params map[string]interface{}) ([]byte, error) {
	// 确保params中包含key参数
	reqParams := make(map[string]interface{})

	// 复制用户参数
	for k, v := range params {
		reqParams[k] = v
	}

	// 如果未提供key，则使用配置中的ApiKey
	if _, ok := reqParams["key"]; !ok {
		reqParams["key"] = t.config.ApiKey
	}

	// 构建完整的URL，假设BaseURL已包含https://前缀
	fullURL := fmt.Sprintf("%s/%s/index", strings.TrimRight(t.config.BaseURL, "/"), apiPath)

	// 将请求数据转换为JSON
	messageBytes, err := json.Marshal(reqParams)
	if err != nil {
		return nil, fmt.Errorf("参数序列化失败: %w", err)
	}

	// 发起HTTP请求
	resp, err := http.Post(fullURL, "application/json", strings.NewReader(string(messageBytes)))
	if err != nil {
		return nil, fmt.Errorf("发送请求失败: %w", err)
	}
	defer resp.Body.Close()

	// 读取响应体
	body, err := io.ReadAll(resp.Body)
	if err != nil {
		return nil, fmt.Errorf("读取响应失败: %w", err)
	}

	// 检查响应状态码
	code := gjson.GetBytes(body, "code").Int()
	if code != 200 {
		msg := gjson.GetBytes(body, "msg").String()
		return nil, fmt.Errorf("天聚请求失败: 状态码 %d, 信息: %s", code, msg)
	}

	// 获取结果数据
	result := gjson.GetBytes(body, "result")
	if !result.Exists() {
		return nil, fmt.Errorf("天聚请求result为空: %s", string(body))
	}

	return []byte(result.Raw), nil
}