using Novelly.Api.Common;
using Novelly.Api.Common.Validation;

namespace Novelly.Api.Chapters;

public static class ChapterEndpoints
{
    public static IEndpointRouteBuilder MapChapterEndpoints(this IEndpointRouteBuilder app)
    {
        var projectScoped = app.MapGroup("/api/projects/{projectId:guid}/chapters").WithTags("Chapters")
            .AddEndpointFilter<RequestLoggingEndpointFilter>()
            .AddEndpointFilter<ValidationEndpointFilter>();

        projectScoped.MapGet("/", async (Guid projectId, ChapterService service, CancellationToken ct) =>
                Results.Ok((await service.ListAsync(projectId, ct)).Select(c => c.ToSummaryResponse())))
            .WithSummary("List a project's chapters in manuscript order.");

        projectScoped.MapPost("/", async (
                Guid projectId, CreateChapterRequest request, ChapterService service, CancellationToken ct) =>
            {
                var chapter = await service.CreateAsync(projectId, request, ct);
                if (chapter is null)
                {
                    return Results.NotFound();
                }

                var created = chapter.ToResponse();
                return Results.Created($"/api/chapters/{created.Id}", created);
            })
            .WithSummary("Add a chapter.");

        var chapters = app.MapGroup("/api/chapters").WithTags("Chapters")
            .AddEndpointFilter<RequestLoggingEndpointFilter>()
            .AddEndpointFilter<ValidationEndpointFilter>();

        chapters.MapGet("/{id:guid}", async (Guid id, ChapterService service, CancellationToken ct) =>
                (await service.GetAsync(id, ct))?.ToResponse().ToApiResult())
            .WithSummary("Read a chapter with its beats and prose.");

        chapters.MapPatch("/{id:guid}", async (
                Guid id, UpdateChapterRequest request, ChapterService service, CancellationToken ct) =>
                (await service.UpdateAsync(id, request, ct))?.ToResponse().ToApiResult())
            .WithSummary("Update a chapter.");

        chapters.MapDelete("/{id:guid}", async (Guid id, ChapterService service, CancellationToken ct) =>
                await service.DeleteAsync(id, ct) ? Results.NoContent() : Results.NotFound())
            .WithSummary("Delete a chapter.");

        return app;
    }
}