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mws.backend.dotnet/mws.application/Projects/Commands/AddProjectMember.cs
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using MediatR;
using Mws.Application.Common;
using Mws.Domain.Projects;
namespace Mws.Application.Projects;
public record AddProjectMemberCommand(Guid UserId, Guid ProjectId, AddMemberRequest Request) : IRequest<ProjectMemberDto>;
public class AddProjectMemberHandler(IUnitOfWork uow) : IRequestHandler<AddProjectMemberCommand, ProjectMemberDto>
{
public async Task<ProjectMemberDto> Handle(AddProjectMemberCommand command, CancellationToken ct)
{
if (await uow.Projects.GetMemberRoleAsync(command.ProjectId, command.UserId, ct) != MemberRole.Owner)
{
throw new ForbiddenException("Only the project owner can add members");
}
var request = command.Request;
var user = await uow.Users.GetByIdAsync(request.UserId, ct)
?? throw new NotFoundException("User not found");
var already = await uow.Projects.IsMemberAsync(command.ProjectId, request.UserId, ct);
if (already)
{
throw new BadRequestException("User is already a member of this project");
}
var role = request.Role is MemberRole.Owner or MemberRole.Member ? request.Role : MemberRole.Member;
var member = new ProjectMember
{
ProjectId = command.ProjectId,
UserId = request.UserId,
Role = role,
};
uow.Projects.AddMember(member);
uow.Projects.AddMemberPermission(new ProjectMemberPermission
{
ProjectId = command.ProjectId,
UserId = request.UserId,
Screen = ProjectPermissionScreens.Documents,
CanView = true,
CanCreate = role == MemberRole.Owner,
CanEdit = role == MemberRole.Owner,
CanDelete = role == MemberRole.Owner,
});
await uow.SaveChangesAsync(ct);
return new ProjectMemberDto
{
UserId = user.Id,
Username = user.Username,
DisplayName = user.DisplayName,
Role = member.Role,
CanViewDocuments = true,
CanCreateDocuments = role == MemberRole.Owner,
CanEditDocuments = role == MemberRole.Owner,
CanDeleteDocuments = role == MemberRole.Owner,
};
}
}