package chatsession

import (
	"context"
	"github.com/suyuan32/simple-admin-common/msg/errormsg"
	"github.com/suyuan32/simple-admin-common/utils/pointy"
	"github.com/zeromicro/go-zero/core/errorx"
	"wechat-api/ent/chatsession"
	"wechat-api/ent/employee"
	"wechat-api/ent/predicate"
	"wechat-api/ent/wxcard"
	"wechat-api/internal/utils/dberrorhandler"

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

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

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

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

func (l *GetChatSessionListLogic) GetChatSessionList(req *types.ChatSessionListReq) (*types.ChatSessionListResp, error) {
	resp := &types.ChatSessionListResp{}
	resp.Msg = errormsg.Success

	var predicates []predicate.ChatSession
	if req.BotType == nil || *req.BotType == 0 {
		return nil, errorx.NewInvalidArgumentError("BotId cannot be null")
	}
	if req.BotName != nil && *req.BotName != "" {
		predicates = append(predicates, chatsession.BotType(*req.BotType))

		ids := make([]uint64, 0)
		if *req.BotType == 2 {
			wxcardList, err := l.svcCtx.DB.WxCard.Query().Where(wxcard.NameContains(*req.BotName)).All(l.ctx)
			if err != nil {
				return nil, dberrorhandler.DefaultEntError(l.Logger, err, req)
			}
			for _, val := range wxcardList {
				ids = append(ids, val.ID)
			}
		} else if *req.BotType == 3 {
			employeeList, err := l.svcCtx.DB.Employee.Query().Where(employee.TitleContains(*req.BotName)).All(l.ctx)
			if err != nil {
				return nil, dberrorhandler.DefaultEntError(l.Logger, err, req)
			}
			for _, val := range employeeList {
				ids = append(ids, val.ID)
			}
		}

		if len(ids) > 0 {
			predicates = append(predicates, chatsession.BotIDIn(ids...))
		} else {
			return resp, nil
		}
	}

	data, err := l.svcCtx.DB.ChatSession.Query().Where(predicates...).Page(l.ctx, req.Page, req.PageSize)

	if err != nil {
		return nil, dberrorhandler.DefaultEntError(l.Logger, err, req)
	}

	resp.Data.Total = data.PageDetails.Total

	for _, v := range data.List {
		resp.Data.Data = append(resp.Data.Data,
			types.ChatSessionInfo{
				BaseIDInfo: types.BaseIDInfo{
					Id:        &v.ID,
					CreatedAt: pointy.GetPointer(v.CreatedAt.UnixMilli()),
					UpdatedAt: pointy.GetPointer(v.UpdatedAt.UnixMilli()),
				},
				Name:    &v.Name,
				UserId:  &v.UserID,
				BotId:   &v.BotID,
				BotType: &v.BotType,
			})
	}

	return resp, nil
}