package sop_task

import (
	"context"
	"fmt"
	"strconv"
	"wechat-api/ent"
	"wechat-api/ent/sopnode"
	"wechat-api/ent/sopstage"

	"wechat-api/internal/svc"
	"wechat-api/internal/types"

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

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

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

func (l *TestNodeLogic) TestNode(req *types.TestNodeReq) (resp *types.TestNodeResp, err error) {
	var nodes []*ent.SopNode
	q := ""
	if req.Type == 1 {
		parentNode, err := l.svcCtx.DB.SopStage.Query().Where(sopstage.IDEQ(req.Id)).Only(l.ctx)
		if err != nil {
			return nil, err
		}
		for _, message := range parentNode.ActionMessage {
			if message.Type == 1 {
				q += message.Content
			}
		}
		nodes, err = l.svcCtx.DB.SopNode.Query().Where(sopnode.StageIDEQ(req.Id), sopnode.ParentIDEQ(0)).All(l.ctx)
		if err != nil {
			return nil, err
		}
	} else {
		parentNode, err := l.svcCtx.DB.SopNode.Query().Where(sopnode.IDEQ(req.Id)).Only(l.ctx)
		if err != nil {
			return nil, err
		}
		for _, message := range parentNode.ActionMessage {
			if message.Type == 1 {
				q += message.Content
			}
		}
		nodes, err = l.svcCtx.DB.SopNode.Query().Where(sopnode.ParentIDEQ(req.Id)).All(l.ctx)
		if err != nil {
			return nil, err
		}
	}

	backupNodeIndex := -1
	needJudge := false

	prompt := fmt.Sprintf(`# 任务
请根据历史消息，判断用户回复的内容或深层意图，与哪个节点的意图相匹配。

# 历史消息：
助手发送：%s
用户回复：%s

# 节点列表：`, q, req.Content)

	for i, node := range nodes {
		if node.ConditionList != nil && node.ConditionList[0] != "" {
			needJudge = true
			prompt += fmt.Sprintf(`
节点 id: %d
节点意图：%s
`, i, node.ConditionList)
		} else {
			if node.NoReplyCondition == 0 {
				backupNodeIndex = i
			}
		}
	}

	prompt += `
# 回复要求
- 如果命中节点：则仅回复节点 id 数字（如命中多个节点，则仅回复最小值）
- 如果未命中节点：则仅回复一个单词: None`
	index := ""
	if needJudge {
		// 调用openai接口，使用自定义base和key
		baseUrl := l.svcCtx.Config.Fastgpt.BASE_URL
		apiKey := l.svcCtx.Config.Fastgpt.API_KEY
		index, err = ChatWithCustomConfig(baseUrl, apiKey, prompt)
		if err != nil {
			return nil, err
		}
	} else {
		index = "None"
	}
	if index == "None" && backupNodeIndex != -1 {
		index = strconv.Itoa(backupNodeIndex)
	}
	nodeName := ""

	if index != "None" {
		// 将index转换成int
		indexInt, err := strconv.Atoi(index)
		if err != nil {
			return nil, err
		}
		nodeName = nodes[indexInt].Name
	} else {
		nodeName = "FastGPT"
	}

	var nodeNames []string
	nodeNames = append(nodeNames, nodeName)

	resp = &types.TestNodeResp{}
	resp.Msg = "success"
	resp.Data = nodeNames

	return resp, nil
}

func ChatWithCustomConfig(baseURL, apiKey, prompt string) (string, error) {
	// 创建OpenAI客户端配置
	config := openai.DefaultConfig(apiKey)
	config.BaseURL = baseURL

	// 创建OpenAI客户端
	openaiClient := openai.NewClientWithConfig(config)

	// 构建请求
	request := openai.ChatCompletionRequest{
		Model: openai.GPT4o,
		Messages: []openai.ChatCompletionMessage{
			{
				Role:    "user",
				Content: prompt,
			},
		},
	}

	// 调用Chat接口
	response, err := openaiClient.CreateChatCompletion(context.Background(), request)
	if err != nil {
		return "", err
	}

	// 返回响应内容
	return response.Choices[0].Message.Content, nil
}