package workers

import (
	"fmt"
	"log"
	"strings"
	"time"

	"github.com/goccy/go-json"
	"github.com/parnurzeal/gorequest"
)

func init() {
	RegisterWorkerFactory("ai", func(parms []string, uid, gid, role, mid, rawMsg string) Worker {
		return &AI{
			StdAns: NewStdAns(parms, uid, gid, role, mid, rawMsg),
		}
	})
}

type AI struct {
	*StdAns
}

func (a *AI) GetMsg() string {
	if len(a.Parms) < 2 {
		return "使用!ai xxx 向我提问吧"
	}

	ask := a.Parms[1]
	if ask == "" {
		return "不问问题你说个屁！"
	}

	OPENAI_API_KEY, OPENAI_BaseURL, MODEL := getConfig()
	if OPENAI_API_KEY == "" {
		return "OPENAI_API_KEY 未配置"
	}

	if strings.ToLower(a.Parms[1]) == "models" {
		return handleModelRequest(OPENAI_API_KEY, OPENAI_BaseURL)
	} else {
		return handleChatRequest(OPENAI_API_KEY, OPENAI_BaseURL, MODEL, a.RawMsg, a.UID)
	}
}

func getConfig() (string, string, string) {
	var OPENAI_API_KEY, OPENAI_BaseURL, MODEL string

	if cfg["OPENAI_API_KEY"] != nil {
		OPENAI_API_KEY = cfg["OPENAI_API_KEY"].(string)
	} else {
		log.Println("OPENAI_API_KEY 未配置")
	}

	if cfg["OPENAI_BaseURL"] != nil {
		OPENAI_BaseURL = cfg["OPENAI_BaseURL"].(string)
	} else {
		log.Println("OPENAI_BaseURL 未配置,使用openai默认配置")
		OPENAI_BaseURL = "https://api.openai.com/v1"
	}

	if cfg["MODEL"] != nil {
		MODEL = cfg["MODEL"].(string)
	} else {
		log.Println("模型 未配置,使用默认 gpt-4o 模型")
		MODEL = "gpt-4o"
	}

	return OPENAI_API_KEY, OPENAI_BaseURL, MODEL
}

func handleModelRequest(OPENAI_API_KEY, OPENAI_BaseURL string) string {
	OPENAI_BaseURL = OPENAI_BaseURL + "/models"
	request := gorequest.New()
	resp, body, errs := request.Get(OPENAI_BaseURL).
		Set("Content-Type", "application/json").
		Set("Authorization", "Bearer "+OPENAI_API_KEY).
		End()

	if errs != nil {
		log.Println(errs)
		return "请求失败"
	}

	if resp.StatusCode == 200 {
		var responseBody map[string]interface{}
		if err := json.Unmarshal([]byte(body), &responseBody); err != nil {
			log.Println(err)
			return "解析模型列表失败"
		}

		choices := responseBody["data"].([]interface{})
		// var models []interface{}
		if len(choices) > 0 {
			msg := "支持的模型列表:\n"
			for _, choice := range choices {
				model := choice.(map[string]interface{})["id"]
				msg += fmt.Sprintf("%s\n", model)
			}
			return msg
		} else {
			return "模型列表为空"
		}
	} else {
		log.Println("请求失败")
		return "请求模型列表失败"
	}
}

func handleChatRequest(OPENAI_API_KEY, OPENAI_BaseURL, MODEL, rawMsg, UID string) string {
	OPENAI_BaseURL = OPENAI_BaseURL + "/chat/completions"
	PROMPT, ok := cfg["PROMPT"].(string)
	if !ok {
		log.Println("PROMPT 未配置")
		PROMPT = ""
	}

	requestBody := map[string]interface{}{
		"model":  MODEL,
		"stream": false,
		"messages": []map[string]string{
			{
				"role":    "system",
				"content": PROMPT,
			},
			{"role": "user", "content": rawMsg[strings.Index(rawMsg, " ")+1:]},
		},
		"temperature":       0.7,
		"presence_penalty":  0,
		"frequency_penalty": 0,
		"top_p":             1,
	}
	const maxRetry = 2
	for retries := 0; retries <= maxRetry; retries++ {
		request := gorequest.New()
		resp, body, errs := request.Post(OPENAI_BaseURL).
			Set("Content-Type", "application/json").
			Set("Authorization", "Bearer "+OPENAI_API_KEY).
			Send(requestBody).
			End()

		if errs != nil {
			log.Println(errs)
			return "请求失败"
		}
		println(resp.StatusCode)
		if resp.StatusCode == 200 {
			var responseBody map[string]interface{}
			if err := json.Unmarshal([]byte(body), &responseBody); err != nil {
				log.Println(err)
				return "解析失败"
			}
			choices := responseBody["choices"].([]interface{})
			if len(choices) > 0 {
				choice := choices[0].(map[string]interface{})
				msg := choice["message"].(map[string]interface{})["content"].(string)
				return fmt.Sprintf("[CQ:at,qq=%s] %s", UID, msg)
			} else {
				log.Println("choices为空")
				return "api解析失败"
			}
		} else {
			log.Printf("请求失败，状态码：%d，重试中...（%d/%d）\n", resp.StatusCode, retries+1, maxRetry)
			time.Sleep(time.Second * 1)
			// return "请求失败: " + fmt.Sprintf("%d", resp.StatusCode)
		}
	}
	return "请求失败!"
}