63 lines
2.1 KiB
C#
63 lines
2.1 KiB
C#
using ErrorOr;
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using Mediator;
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using Microsoft.EntityFrameworkCore;
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using Musify.Application.Contracts;
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using Musify.Application.Shared;
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using Musify.Application.Users.Responses;
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namespace Musify.Application.Users;
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public record GetUserProfileQuery(long UserId, long? ViewerId = null) : IQuery<ErrorOr<UserProfileResponse>>;
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public class GetUserProfileQueryHandler(IDatabase database)
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: IQueryHandler<GetUserProfileQuery, ErrorOr<UserProfileResponse>>
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{
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public async ValueTask<ErrorOr<UserProfileResponse>> Handle(GetUserProfileQuery request, CancellationToken cancellationToken)
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{
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var user = await database.Users
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.AsNoTracking()
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.Where(u => u.Id == request.UserId)
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.Select(u => new
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{
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u.Id,
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u.Name,
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u.FirstName,
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u.SecondName,
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u.ProfilePictureUrl,
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u.CreatedAt
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})
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.SingleOrDefaultAsync(cancellationToken);
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if (user == null)
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return AppErrors.NotFound("User", request.UserId);
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var followersCount = await database.UserFollows
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.AsNoTracking()
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.CountAsync(f => f.FollowedId == request.UserId, cancellationToken);
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var followingCount = await database.UserFollows
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.AsNoTracking()
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.CountAsync(f => f.FollowerId == request.UserId, cancellationToken);
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var isFollowing = request.ViewerId is { } viewerId && viewerId != request.UserId &&
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await database.UserFollows
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.AsNoTracking()
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.AnyAsync(f => f.FollowerId == viewerId && f.FollowedId == request.UserId, cancellationToken);
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var canViewFollowers = await FollowVisibility.CanViewFollowersAsync(
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database, request.ViewerId, request.UserId, cancellationToken);
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return new UserProfileResponse(
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user.Id,
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user.Name,
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user.FirstName,
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user.SecondName,
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user.ProfilePictureUrl,
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user.CreatedAt,
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followersCount,
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followingCount,
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isFollowing,
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canViewFollowers);
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}
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}
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