package ai

import (
	"bytes"
	"context"
	"crypto/tls"
	"github.com/go-resty/resty/v2"
	"github.com/pkg/errors"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/constants"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/models"
	"gitlink.org.cn/JointCloud/pcm-coordinator/pkg/utils/hws"
	"k8s.io/apimachinery/pkg/util/json"
	"net/http"
	"strings"

	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/svc"
	"gitlink.org.cn/JointCloud/pcm-coordinator/internal/types"

	"github.com/zeromicro/go-zero/core/logx"
)

type ChatLogic struct {
	logx.Logger
	ctx    context.Context
	svcCtx *svc.ServiceContext
}

func NewChatLogic(ctx context.Context, svcCtx *svc.ServiceContext) *ChatLogic {
	return &ChatLogic{
		Logger: logx.WithContext(ctx),
		ctx:    ctx,
		svcCtx: svcCtx,
	}
}

func (l *ChatLogic) Chat(req *types.ChatReq) (resp *types.ChatResult, err error) {
	resp = &types.ChatResult{}
	jsonBytes, err := json.Marshal(&req.ReqData)
	if err != nil {
		logx.Errorf("【序列化请求数据失败: %v】", err)
		return nil, errors.New("请求数据序列化失败")
	}

	taskAi := models.TaskAi{}
	l.svcCtx.DbEngin.Model(models.TaskAi{}).Where("id", req.Id).Scan(&taskAi)
	logx.Infof("【开始处理请求，目标URL: %s】", taskAi.InferUrl)

	// 构建 HTTP 请求
	request, err := http.NewRequest("POST", taskAi.InferUrl, bytes.NewBuffer(jsonBytes))
	if err != nil {
		logx.Errorf("【构建 HTTP 请求失败: %v】", err)
		return nil, errors.New("网络错误，请稍后重试")
	}
	client := resty.New().SetTLSClientConfig(&tls.Config{InsecureSkipVerify: true})
	restReq := client.R()

	//ModelArts
	cluster := models.CloudModel{}
	l.svcCtx.DbEngin.Table("t_cluster").Where("id", taskAi.ClusterId).Scan(&cluster)
	if strings.EqualFold(cluster.Label, constants.MODELARTS) {
		signer := &hws.Signer{
			Key:    cluster.Ak,
			Secret: cluster.Sk,
		}
		if err := signer.Sign(request); err != nil {
			logx.Errorf("【接口签名错误: %v】", err)
			return nil, errors.New("网络错误，请稍后重试")
		}
		restReq.
			SetHeader("X-Project-Id", cluster.ProjectId).
			SetHeader("x-stage", "RELEASE").
			SetHeader("Authorization", request.Header.Get(hws.HeaderXAuthorization)).
			SetHeader("X-Sdk-Date", request.Header.Get(hws.HeaderXDateTime))
	}

	response, err := restReq.
		SetHeader("Content-Type", "application/json").
		SetBody(jsonBytes).
		SetResult(&resp).
		Post(taskAi.InferUrl)

	if err != nil {
		logx.Errorf("【远程调用接口URL:%s， 返回错误: %s】", taskAi.InferUrl, err.Error())
		return nil, errors.New("网络错误，请稍后重试")
	}

	if response.StatusCode() != 200 {
		logx.Errorf("【远程调用接口URL:%s， 返回错误: %s】", taskAi.InferUrl, response.Body())
		return nil, errors.New("网络错误，请稍后重试")
	}

	logx.Infof("【请求处理成功，目标URL: %s】", taskAi.InferUrl)
	return resp, nil
}