using PostFundManagement.Domain;
using PostFundManagement.Domain.Abstractions;
using PostFundManagement.Domain.Api;
using PostFundManagement.Domain.Extensions;
using PostFundManagement.Infrastructure.Database;

namespace PostFundManagement.Api.Endpoints.Execution;

[ApiVersionTarget(1)]
public class ApproveDisbursementEndpoint : IEndpoint
{
    public void Map(IEndpointRouteBuilder builder)
    {
        builder.MapPost("api/execution/disbursements/{id:long}/approve", async (long id, ClaimsPrincipal principal, 
            IDbContextFactory<ApplicationDbContext> contextFactory, CancellationToken cancellationToken = default) =>
        {
            var sidClaim = principal.FindFirst("sid")?.Value ?? principal.FindFirst(ClaimTypes.Sid)?.Value;

            if (!Guid.TryParse(sidClaim, out var userId))
                return Results.BadRequest("Missing or invalid 'sid' claim.");

            using var context = await contextFactory.CreateDbContextAsync(cancellationToken);

            var disbursement = await context.Disbursements.FirstOrDefaultAsync(d => d.Id == id, cancellationToken);

            if (disbursement == null)
                return Results.NotFound($"Disbursement with ID {id} does not exist.");

            disbursement.Status = ApprovalStatus.Approved;
            disbursement.UpdatedBy = userId;
            disbursement.UpdatedAt = DateTime.UtcNow;

            context.Disbursements.Update(disbursement);

            return await context.SaveChangesAsync(cancellationToken) > 0
                ? Results.Ok(disbursement)
                : Results.BadRequest("Failed to approve payment");
        })
        .RequireAuthorization()
        .WithDescription("Approve disbursement and release payment (M06)")
        .WithName(typeof(ApproveDisbursementEndpoint).ToEndpointName())
        .MapToApiVersion(new ApiVersion(1))
        .Produces<Domain.Entities.Disbursement>(StatusCodes.Status200OK)
        .Produces(StatusCodes.Status404NotFound)
        .Produces(StatusCodes.Status401Unauthorized)
        .WithTags(EndpointTags.Execution);
    }
}