package logic

import (
	"context"

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

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

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

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

func (l *DeleteConversationLogic) DeleteConversation(req *types.ConversationIdReq) (resp *types.CommonResp, err error) {
	userID, err := GetUserIDFromCtx(l.ctx)
	if err != nil {
		return nil, errorx.ErrUnauthorized
	}

	var conversation model.Conversation
	if err := l.svcCtx.DB.Where("id = ? AND user_id = ?", req.Id, userID).First(&conversation).Error; err != nil {
		return nil, errorx.ErrNotFound
	}

	// 删除消息
	l.svcCtx.DB.Where("conversation_id = ?", conversation.ID).Delete(&model.Message{})

	// 删除对话
	if err := l.svcCtx.DB.Delete(&conversation).Error; err != nil {
		return nil, errorx.ErrServerError
	}

	return &types.CommonResp{Code: 0, Message: "删除成功"}, nil
}