package logic

import (
	"context"

	"healthapi/internal/model"
	"healthapi/internal/svc"
	"healthapi/internal/types"
	"healthapi/pkg/errorx"

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

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

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

func (l *CreateConversationLogic) CreateConversation(req *types.CreateConversationReq) (resp *types.ConversationItem, err error) {
	userID, err := GetUserIDFromCtx(l.ctx)
	if err != nil {
		return nil, errorx.ErrUnauthorized
	}

	title := req.Title
	if title == "" {
		title = "新对话"
	}

	conversation := model.Conversation{
		UserID: userID,
		Title:  title,
	}

	if err := l.svcCtx.DB.Create(&conversation).Error; err != nil {
		return nil, errorx.ErrServerError
	}

	return &types.ConversationItem{
		ID:        uint(conversation.ID),
		Title:     conversation.Title,
		CreatedAt: conversation.CreatedAt.Format("2006-01-02 15:04:05"),
		UpdatedAt: conversation.UpdatedAt.Format("2006-01-02 15:04:05"),
	}, nil
}