using Application.Abstractions.Data;
using Application.Abstractions.Messaging;
using Microsoft.EntityFrameworkCore;
using SharedKernel.Results;

namespace Application.Features.Api.Developers.Tokens.RevokePat;

internal sealed class Handler(IAppDbContext db) : ICommandHandler<Command, Result>
{
    public async Task<Result> Handle(Command request, CancellationToken ct)
    {
        var pat = await db.ApiPersonalAccessToken
            .AsTracking()
            .FirstOrDefaultAsync(c => c.ID == request.PatID && c.OwnerMemberID == request.OwnerMemberID, ct);

        if (pat is null)
        {
            return Result.Failure(Error.NotFound("Pat.NotFound", "PAT not found."));
        }

        if (pat.IsRevoked)
        {
            return Result.Failure(Error.Conflict("Pat.AlreadyRevoked", "PAT already revoked."));
        }

        pat.Revoke();
        await db.SaveChangesAsync(ct);

        return Result.Success();
    }
}