package llm

import (
	"encoding/json"
	"eta/eta_api/controllers"
	"eta/eta_api/controllers/llm/llm_http"
	"eta/eta_api/models"
	"eta/eta_api/models/llm"
	llmService "eta/eta_api/services/llm"
	"eta/eta_api/utils"
	"time"
)

type UserChatController struct {
	controllers.BaseAuthController
}

// NewChat @Title 新建对话框
// @Description 新建对话框
// @Success 101 {object} response.ListResp
// @router /chat/new_chat [post]
func (ucCtrl *UserChatController) NewChat() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	var req llm_http.UserChatReq
	err := json.Unmarshal(ucCtrl.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	if req.ChatTitle == "" {
		req.ChatTitle = "新会话"
	}
	session := llm.UserLlmChat{
		UserId:      sysUser.AdminId,
		CreatedTime: time.Now(),
		ChatTitle:   req.ChatTitle,
	}
	var chatResp = new(llm_http.UserChatResp)
	chatResp.ChatTitle = req.ChatTitle
	chatResp.ChatId, err = session.CreateChatSession()
	chatResp.SendTime = time.Now().Format(utils.FormatDateTime)
	if err != nil {
		br.Msg = "创建失败"
		br.ErrMsg = "创建失败,Err:" + err.Error()
		return
	}
	_ = llmService.AddChatRecord(&llm.UserChatRecordRedis{
		ChatId:       session.Id,
		ChatUserType: "user",
		Content:      req.ChatTitle,
		SendTime:     chatResp.SendTime,
	})
	br.Data = chatResp
	br.Ret = 200
	br.Success = true
	br.Msg = "创建成功"
}

// RenameChat @Title 新建对话框
// @Description 新建对话框
// @Success 101 {object} response.ListResp
// @router /chat/rename_chat [post]
func (ucCtrl *UserChatController) RenameChat() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	var req llm_http.UserChatReq
	err := json.Unmarshal(ucCtrl.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	if req.ChatId <= 0 {
		br.Msg = "非法的对话框Id"
		br.ErrMsg = "非法的对话框Id"
		return
	}
	if req.ChatTitle == "" {
		br.Msg = "重命名不能为空"
		br.ErrMsg = "重命名不能为空"
		return
	}
	session := llm.UserLlmChat{
		Id:         req.ChatId,
		UpdateTime: time.Now(),
		UserId:     sysUser.AdminId,
		ChatTitle:  req.ChatTitle,
	}
	err = session.RenameChatSession()
	if err != nil {
		br.Msg = "重命名失败"
		br.ErrMsg = "重命名失败,Err:" + err.Error()
		return
	}
	br.Ret = 200
	br.Success = true
	br.Msg = "重命名成功"
}

// DeleteChat @Title 删除对话框
// @Description 删除对话框
// @Success 101 {object} response.ListResp
// @router /chat/delete_chat [post]
func (ucCtrl *UserChatController) DeleteChat() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	var req llm_http.UserChatReq
	err := json.Unmarshal(ucCtrl.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	if req.ChatId <= 0 {
		br.Msg = "非法的对话框Id"
		br.ErrMsg = "非法的对话框Id"
		return
	}

	session := llm.UserLlmChat{
		Id:         req.ChatId,
		UpdateTime: time.Now(),
		IsDeleted:  1,
	}
	err = session.DeleteChatSession()
	if err != nil {
		br.Msg = "删除失败"
		br.ErrMsg = "删除失败,Err:" + err.Error()
		return
	}
	br.Ret = 200
	br.Success = true
	br.Msg = "删除成功"
}

// GetUserChatList @Title 获取用户对话框列表
// @Description  获取用户对话框列表
// @Success 101 {object} response.ListResp
// @router /chat/user_chat_list [get]
func (ucCtrl *UserChatController) GetUserChatList() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	//周日是0,周六是6
	weekDay := time.Now().Weekday()
	offset := int(time.Monday - weekDay)
	if offset > 0 {
		offset -= 7
	}
	today := time.Now().Format(utils.FormatDate)
	monDay := time.Now().AddDate(0, 0, offset).Format(utils.FormatDate)
	yesterday := time.Now().AddDate(0, 0, -1).Format(utils.FormatDate)
	chatList, err := llm.GetUserChatList(sysUser.AdminId, monDay, time.Now().Format(utils.FormatDate))
	if err != nil {
		br.Msg = "获取用户聊天列表失败"
		br.ErrMsg = "获取用户聊天列表失败,Err:" + err.Error()
		return
	}
	data := new(llm_http.UserChatListResp)
	data.WeekList = make([]llm.UserLlmChatListViewItem, 0)
	data.YesterdayList = make([]llm.UserLlmChatListViewItem, 0)
	data.TodayList = make([]llm.UserLlmChatListViewItem, 0)
	for _, v := range chatList {
		list, _ := llmService.GetChatRecordsFromRedis(v.Id)
		item := llm.CovertItemToView(v)
		item.RecordCount = len(list)
		if v.CreatedTime.Format(utils.FormatDate) == today {
			data.TodayList = append(data.TodayList, item)
		} else if v.CreatedTime.Format(utils.FormatDate) == yesterday {
			data.YesterdayList = append(data.YesterdayList, item)
		} else {
			data.WeekList = append(data.WeekList, item)
		}
	}

	br.Data = data
	br.Ret = 200
	br.Success = true
	br.Msg = "获取用户聊天列表成功"
}

// ChatRecordAdd @Title 保存聊天记录
// @Description 保存聊天记录
// @Success 101 {object} response.ListResp
// @router /chat/chat_record_save [post]
func (ucCtrl *UserChatController) ChatRecordAdd() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	var req llm_http.UserChatRecordReq
	err := json.Unmarshal(ucCtrl.Ctx.Input.RequestBody, &req)
	if err != nil {
		br.Msg = "参数解析异常！"
		br.ErrMsg = "参数解析失败，Err:" + err.Error()
		return
	}
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	if req.ChatId <= 0 {
		br.Msg = "非法的对话框Id"
		br.ErrMsg = "非法的对话框Id"
		return
	}
	if req.Content == "" {
		br.Msg = "聊天记录不能为空"
		br.ErrMsg = "聊天记录不能为空"
		return
	}
	if req.Id < 0 {
		br.Msg = "非法的Id"
		br.ErrMsg = "非法的Id"
		return
	}
	if req.ChatUserType != "user" && req.ChatUserType != "assistant" {
		br.Msg = "非法的用户类型"
		br.ErrMsg = "非法的用户类型,用户类型支持:user/assistant"
		return
	}
	if req.SendTime == "" {
		req.SendTime = time.Now().Format(utils.FormatDateTime)
	} else {
		_, err = time.Parse(utils.FormatDateTime, req.SendTime)
		if err != nil {
			br.Msg = "非法的发送时间"
			br.ErrMsg = "非法的发送时间,Err:" + err.Error()
			return
		}
	}
	record := llm.UserChatRecordRedis{
		ChatId:       req.ChatId,
		ChatUserType: req.ChatUserType,
		Content:      req.Content,
		SendTime:     req.SendTime,
	}
	err = llmService.AddChatRecord(&record)
	if err != nil {
		br.Msg = "添加聊天记录失败"
		br.ErrMsg = "添加聊天记录失败,Err:" + err.Error()
		return
	}

	br.Data = llm_http.UserChatAddResp{
		SendTime: record.SendTime,
	}
	br.Ret = 200
	br.Success = true
	br.Msg = "添加聊天记录成功"
}

// ChatRecordList @Title 获取聊天记录
// @Description 获取聊天记录
// @Success 101 {object} response.ListResp
// @router /chat/chat_record_list [get]
func (ucCtrl *UserChatController) ChatRecordList() {
	br := new(models.BaseResponse).Init()
	defer func() {
		ucCtrl.Data["json"] = br
		ucCtrl.ServeJSON()
	}()
	sysUser := ucCtrl.SysUser
	if sysUser == nil {
		br.Msg = "请登录"
		br.ErrMsg = "请登录，SysUser Is Empty"
		br.Ret = 408
		return
	}
	chatId, _ := ucCtrl.GetInt("ChatId", 0)
	if chatId <= 0 {
		br.Msg = "非法的对话Id"
		br.ErrMsg = "非法的对话Id"
		return
	}

	list, err := llmService.GetChatRecordsFromRedis(chatId)
	if err != nil {
		br.Msg = "获取聊天记录失败"
		br.ErrMsg = "获取聊天记录失败,Err:" + err.Error()
		return
	}
	br.Data = list
	br.Ret = 200
	br.Success = true
	br.Msg = "获取聊天记录成功"
}