using AutoMapper;
using FastEndpoints;
using MetaCourse.Api.Data;
using MetaCourse.Api.DTOs.Courses;
using Microsoft.EntityFrameworkCore;

namespace MetaCourse.Api.Endpoints.Courses;

public class UpdateCourseEndpoint(AppDbContext db, AutoMapper.IMapper mapper) : Endpoint<UpdateCourseDto, GetCourseDto>
{
    public override void Configure()
    {
        Put("api/courses/{id}");
        AllowAnonymous();
        Summary(s => s.Summary = "Met à jour le titre et la description d'un cours");
    }

    public override async Task HandleAsync(UpdateCourseDto req, CancellationToken ct)
    {
        var course = await db.Courses
            .Include(c => c.Creator)
            .Include(c => c.Topics)
            .FirstOrDefaultAsync(c => c.Id == req.Id, ct);

        if (course is null)
        {
            await SendNotFoundAsync(ct);
            return;
        }

        mapper.Map(req, course);
        course.UpdatedAt = DateTime.UtcNow;
        await db.SaveChangesAsync(ct);

        await SendOkAsync(mapper.Map<GetCourseDto>(course), ct);
    }
}