package logic

import (
	"context"
	"database/sql"
	"errors"
	"time"

	"muyu-apiserver/model"
	"muyu-apiserver/rpc/system/internal/svc"
	"muyu-apiserver/rpc/system/pb"

	"github.com/zeromicro/go-zero/core/logx"
	"google.golang.org/grpc/codes"
	"google.golang.org/grpc/status"
)

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

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

func (l *DeleteUserLogic) DeleteUser(in *pb.DeleteUserReq) (*pb.Empty, error) {
	user, err := l.svcCtx.UserModel.FindOneByUserId(l.ctx, in.UserId)
	if err != nil {
		if errors.Is(err, model.ErrNotFound) {
			return nil, status.Error(codes.NotFound, "user not found")
		}
		return nil, status.Error(codes.Internal, err.Error())
	}

	user.DeletedAt = sql.NullTime{Time: time.Now(), Valid: true}
	err = l.svcCtx.UserModel.Update(l.ctx, user)
	if err != nil {
		return nil, status.Error(codes.Internal, err.Error())
	}

	_ = l.svcCtx.UserRoleModel.DeleteByUserId(l.ctx, in.UserId)

	return &pb.Empty{}, nil
}