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refactor(application): co-locate each command/query with its handler

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One file per use case under the feature folder (Tracks/PlayLists/Users),
dropping the Commands/Queries/Handlers sub-folders and their namespaces.
Each file now holds the record and its handler in namespace
Musify.Application.<Feature>; external usings updated accordingly.

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Admin
2026-07-05 04:12:59 +02:00
parent bf3b5ceedb
commit db38740139
46 changed files with 158 additions and 309 deletions
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backend/Musify.Application/PlayLists/Handlers/AddTrackToPlayListCommandHandler.cs → backend/Musify.Application/PlayLists/AddTrackToPlayList.cs
+4 -2
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@@ -3,11 +3,13 @@ using Mediator;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Musify.Application.Contracts;
using Musify.Application.PlayLists.Commands;
using Musify.Domain.Entities;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record AddTrackToPlayListCommand(long UserId, Guid PlayListId, Guid TrackId)
: ICommand<ErrorOr<Success>>;
public class AddTrackToPlayListCommandHandler(
IDatabase database,
ILogger<AddTrackToPlayListCommandHandler> logger)
backend/Musify.Application/PlayLists/Commands/AddTrackToPlayListCommand.cs
-8
View File
@@ -1,8 +0,0 @@
using ErrorOr;
using Mediator;
namespace Musify.Application.PlayLists.Commands
{
public record AddTrackToPlayListCommand(long UserId, Guid PlayListId, Guid TrackId)
: ICommand<ErrorOr<Success>>;
}
backend/Musify.Application/PlayLists/Commands/CreatePlayListCommand.cs
-13
View File
@@ -1,13 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Commands
{
public record CreatePlayListCommand(
long UserId,
string Name,
string Description,
Guid? PictureIntentId)
: ICommand<ErrorOr<PlayListApplicationResponse>>;
}
backend/Musify.Application/PlayLists/Commands/DeletePlayListCommand.cs
-8
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@@ -1,8 +0,0 @@
using ErrorOr;
using Mediator;
namespace Musify.Application.PlayLists.Commands
{
public record DeletePlayListCommand(long UserId, Guid PlayListId)
: ICommand<ErrorOr<Success>>;
}
backend/Musify.Application/PlayLists/Commands/RemoveTrackFromPlayListCommand.cs
-8
View File
@@ -1,8 +0,0 @@
using ErrorOr;
using Mediator;
namespace Musify.Application.PlayLists.Commands
{
public record RemoveTrackFromPlayListCommand(long UserId, Guid PlayListId, Guid TrackId)
: ICommand<ErrorOr<Success>>;
}
backend/Musify.Application/PlayLists/Commands/RequestPlayListPictureUploadCommand.cs
-13
View File
@@ -1,13 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Commands
{
public record RequestPlayListPictureUploadCommand(
long UserId,
string FileType,
string ContentType,
long? ExpectedSizeBytes = null)
: ICommand<ErrorOr<PlayListPictureUploadResponse>>;
}
backend/Musify.Application/PlayLists/Commands/UpdatePlayListCommand.cs
-14
View File
@@ -1,14 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Commands
{
public record UpdatePlayListCommand(
long UserId,
Guid PlayListId,
string? NewName,
string? NewDescription,
Guid? NewPictureIntentId)
: ICommand<ErrorOr<PlayListApplicationResponse>>;
}
backend/Musify.Application/PlayLists/Handlers/CreatePlayListCommandHandler.cs → backend/Musify.Application/PlayLists/CreatePlayList.cs
+8 -2
View File
@@ -5,14 +5,20 @@ using Microsoft.Extensions.Logging;
using Musify.Application.Configuration;
using Musify.Application.Shared;
using Musify.Application.Events;
using Musify.Application.PlayLists.Commands;
using Musify.Application.PlayLists.Responses;
using Musify.Application.Services;
using Musify.Domain.Entities;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record CreatePlayListCommand(
long UserId,
string Name,
string Description,
Guid? PictureIntentId)
: ICommand<ErrorOr<PlayListApplicationResponse>>;
public class CreatePlayListCommandHandler(
IEventBus eventBus,
IDatabase database,
backend/Musify.Application/PlayLists/Handlers/DeletePlayListCommandHandler.cs → backend/Musify.Application/PlayLists/DeletePlayList.cs
+5 -3
View File
@@ -4,11 +4,13 @@ using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Musify.Application.Contracts;
using Musify.Application.Events;
using Musify.Application.PlayLists.Commands;
using Musify.Domain.ValueObjects;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record DeletePlayListCommand(long UserId, Guid PlayListId)
: ICommand<ErrorOr<Success>>;
public class DeletePlayListCommandHandler(
IDatabase database,
IEventBus eventBus,
@@ -57,4 +59,4 @@ namespace Musify.Application.PlayLists.Handlers
return new Success();
}
}
}
}
backend/Musify.Application/PlayLists/Handlers/GetPlayListByIdQueryHandler.cs → backend/Musify.Application/PlayLists/GetPlayListById.cs
+5 -3
View File
@@ -1,12 +1,14 @@
using ErrorOr;
using Microsoft.EntityFrameworkCore;
using Musify.Application.PlayLists.Responses;
using Musify.Application.PlayLists.Queries;
using Mediator;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record GetPlayListByIdQuery(Guid Id)
: IQuery<ErrorOr<PlayListApplicationResponse>>;
public class GetPlayListByIdQueryHandler(IDatabase database)
: IQueryHandler<GetPlayListByIdQuery, ErrorOr<PlayListApplicationResponse>>
{
@@ -24,4 +26,4 @@ namespace Musify.Application.PlayLists.Handlers
return playList;
}
}
}
}
backend/Musify.Application/PlayLists/Handlers/GetPlayListTracksQueryHandler.cs → backend/Musify.Application/PlayLists/GetPlayListTracks.cs
+7 -2
View File
@@ -3,12 +3,17 @@ using Mediator;
using Microsoft.EntityFrameworkCore;
using Musify.Application.Contracts;
using Musify.Application.Pagination;
using Musify.Application.PlayLists.Queries;
using Musify.Application.Tracks.Responses;
using X.PagedList.EF;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record GetPlayListTracksQuery(
Guid PlayListId,
int PageNumber = 1,
int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<TrackApplicationResponse>>>;
public class GetPlayListTracksQueryHandler(IDatabase database)
: IQueryHandler<GetPlayListTracksQuery, ErrorOr<PaginatedResponse<TrackApplicationResponse>> >
{
backend/Musify.Application/PlayLists/Handlers/GetPlayListsQueryHandler.cs → backend/Musify.Application/PlayLists/GetPlayLists.cs
+5 -3
View File
@@ -2,13 +2,15 @@ using ErrorOr;
using Microsoft.EntityFrameworkCore;
using Musify.Application.Pagination;
using Musify.Application.PlayLists.Responses;
using Musify.Application.PlayLists.Queries;
using X.PagedList.EF;
using Mediator;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record GetPlayListsQuery(int PageNumber = 1, int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<PlayListApplicationResponse>> >;
public class GetPlayListsQueryHandler(IDatabase database)
: IQueryHandler<GetPlayListsQuery, ErrorOr<PaginatedResponse<PlayListApplicationResponse> >>
{
@@ -25,4 +27,4 @@ namespace Musify.Application.PlayLists.Handlers
return PaginatedResponse<PlayListApplicationResponse>.FromPagedList(pagedPlayLists);
}
}
}
}
backend/Musify.Application/PlayLists/Handlers/GetPlayListsByUserIdQueryHandler.cs → backend/Musify.Application/PlayLists/GetPlayListsByUserId.cs
+9 -3
View File
@@ -2,13 +2,19 @@ using ErrorOr;
using Microsoft.EntityFrameworkCore;
using Musify.Application.Pagination;
using Musify.Application.PlayLists.Responses;
using Musify.Application.PlayLists.Queries;
using X.PagedList.EF;
using Mediator;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record GetPlayListsByUserIdQuery(
long UserId,
string? Name,
int PageNumber = 1,
int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<PlayListApplicationResponse>> >;
public class GetPlayListsByUserIdQueryHandler(IDatabase database)
: IQueryHandler<GetPlayListsByUserIdQuery, ErrorOr<PaginatedResponse<PlayListApplicationResponse> > >
{
@@ -34,4 +40,4 @@ namespace Musify.Application.PlayLists.Handlers
return PaginatedResponse<PlayListApplicationResponse>.FromPagedList(pagedPlayLists);
}
}
}
}
backend/Musify.Application/PlayLists/Queries/GetPlayListByIdQuery.cs
-9
View File
@@ -1,9 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Queries
{
public record GetPlayListByIdQuery(Guid Id)
: IQuery<ErrorOr<PlayListApplicationResponse>>;
}
backend/Musify.Application/PlayLists/Queries/GetPlayListTracksQuery.cs
-13
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@@ -1,13 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.Pagination;
using Musify.Application.Tracks.Responses;
namespace Musify.Application.PlayLists.Queries
{
public record GetPlayListTracksQuery(
Guid PlayListId,
int PageNumber = 1,
int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<TrackApplicationResponse>>>;
}
backend/Musify.Application/PlayLists/Queries/GetPlayListsByUserIdQuery.cs
-14
View File
@@ -1,14 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.Pagination;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Queries
{
public record GetPlayListsByUserIdQuery(
long UserId,
string? Name,
int PageNumber = 1,
int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<PlayListApplicationResponse>> >;
}
backend/Musify.Application/PlayLists/Queries/GetPlayListsQuery.cs
-10
View File
@@ -1,10 +0,0 @@
using ErrorOr;
using Mediator;
using Musify.Application.Pagination;
using Musify.Application.PlayLists.Responses;
namespace Musify.Application.PlayLists.Queries
{
public record GetPlayListsQuery(int PageNumber = 1, int PageSize = 10)
: IQuery<ErrorOr<PaginatedResponse<PlayListApplicationResponse>> >;
}
backend/Musify.Application/PlayLists/Handlers/RemoveTrackFromPlayListCommandHandler.cs → backend/Musify.Application/PlayLists/RemoveTrackFromPlayList.cs
+4 -2
View File
@@ -3,10 +3,12 @@ using Mediator;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Musify.Application.Contracts;
using Musify.Application.PlayLists.Commands;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record RemoveTrackFromPlayListCommand(long UserId, Guid PlayListId, Guid TrackId)
: ICommand<ErrorOr<Success>>;
public class RemoveTrackFromPlayListCommandHandler(
IDatabase database,
ILogger<RemoveTrackFromPlayListCommandHandler> logger)
backend/Musify.Application/PlayLists/Handlers/RequestPlayListPictureUploadCommandHandler.cs → backend/Musify.Application/PlayLists/RequestPlayListPictureUpload.cs
+8 -2
View File
@@ -3,15 +3,21 @@ using Mediator;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
using Musify.Application.Configuration;
using Musify.Application.PlayLists.Commands;
using Musify.Application.PlayLists.Responses;
using Musify.Application.Services;
using Musify.Domain.Entities;
using Musify.Domain.ValueObjects;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record RequestPlayListPictureUploadCommand(
long UserId,
string FileType,
string ContentType,
long? ExpectedSizeBytes = null)
: ICommand<ErrorOr<PlayListPictureUploadResponse>>;
public class RequestPlayListPictureUploadCommandHandler(
IDatabase database,
UploadIntentValidator uploadIntentValidator,
backend/Musify.Application/PlayLists/Handlers/UpdatePlayListCommandHandler.cs → backend/Musify.Application/PlayLists/UpdatePlayList.cs
+9 -2
View File
@@ -5,14 +5,21 @@ using Microsoft.Extensions.Logging;
using Musify.Application.Configuration;
using Musify.Application.Shared;
using Musify.Application.Events;
using Musify.Application.PlayLists.Commands;
using Musify.Application.PlayLists.Responses;
using Musify.Application.Services;
using Musify.Domain.Entities;
using Musify.Application.Contracts;
namespace Musify.Application.PlayLists.Handlers
namespace Musify.Application.PlayLists
{
public record UpdatePlayListCommand(
long UserId,
Guid PlayListId,
string? NewName,
string? NewDescription,
Guid? NewPictureIntentId)
: ICommand<ErrorOr<PlayListApplicationResponse>>;
public class UpdatePlayListCommandHandler(
IEventBus eventBus,
IDatabase database,