using PostFundManagement.Application.Abstractions.Services;
using PostFundManagement.Application.Extensions;
using PostFundManagement.Domain.Abstractions;
using PostFundManagement.Domain.Errors;
using PostFundManagement.Domain.Extensions;
using PostFundManagement.Domain.Models;

namespace PostFundManagement.Api.Endpoints.Grants;

[ApiVersionTarget(1)]
public class GetContractEndpoint : IEndpoint
{
    public void Map(IEndpointRouteBuilder builder)
    {
        builder.MapGet("api/grants/contracts/{contractId}", async (string contractId, IGrantsService service, 
            CancellationToken cancellationToken = default) =>
                await service.GetContractAsync(contractId, cancellationToken) switch
                {
                    { IsSuccess: true, Value: var contract } => Results.Ok(contract),
                    var r when r.HasError<IdDecodeError>() => Results.Forbid(),
                    var r when r.HasError<NotFoundError>() => Results.NotFound(r.Errors.ToProblems()),
                    var r => Results.InternalServerError(r.Errors.ToProblems())
                })
            .WithDescription("Get contract by ID")
            .RequireAuthorization(Constants.MainScope)
            .WithName(typeof(GetContractEndpoint).ToEndpointName())
            .MapToApiVersion(new ApiVersion(1))
            .Produces<Contract>(StatusCodes.Status200OK)
            .Produces<Problems>(StatusCodes.Status404NotFound)
            .Produces(StatusCodes.Status403Forbidden)
            .Produces(StatusCodes.Status401Unauthorized)
            .Produces<Problems>(StatusCodes.Status500InternalServerError)
            .WithTags(EndpointTags.Grants)
            .CacheOutput();
    }
}