using FastEndpoints;
using Microsoft.EntityFrameworkCore;
using PyroFetes.DTO.Truck.Request;
using PyroFetes.DTO.Truck.Response;

namespace PyroFetes.Endpoints.Truck;

public class UpdateTruckEndpoint(PyroFetesDbContext pyroFetesDbContext) : Endpoint<UpdateTruckDto, ReadTruckDto>
{
    public override void Configure()
    {
        Put("/api/trucks/{Id}");
        AllowAnonymous();
    }

    public override async Task HandleAsync(UpdateTruckDto req, CancellationToken ct)
    {
        if (!req.Id.HasValue)
        {
            await Send.NotFoundAsync(ct);
            return;
        }

        var truck = await pyroFetesDbContext.Trucks
            .Include(t => t.ShowTrucks)
            .FirstOrDefaultAsync(t => t.Id == req.Id.Value, ct);

        if (truck is null)
        {
            await Send.NotFoundAsync(ct);
            return;
        }

        // Mise à jour des propriétés du truck
        truck.Type = req.Type ?? truck.Type;
        if (double.TryParse(req.MaxExplosiveCapacity, out var capacity))
        {
            truck.MaxExplosiveCapacity = capacity;
        }
        truck.Sizes = req.Sizes ?? truck.Sizes;
        truck.Status = req.Statut ?? truck.Status;

        // Gérer la relation ShowTruck
        if (req.ShowId.HasValue)
        {
            // Supprimer l'ancienne relation
            if (truck.ShowTrucks != null && truck.ShowTrucks.Any())
            {
                var existingShowTrucks = truck.ShowTrucks.ToList();
                foreach (var st in existingShowTrucks)
                {
                    pyroFetesDbContext.ShowTrucks.Remove(st);
                }
            }

            // Ajouter la nouvelle relation si ShowId n'est pas 0
            if (req.ShowId.Value != 0)
            {
                var newShowTruck = new PyroFetes.Models.ShowTruck
                {
                    TruckId = truck.Id,
                    ShowId = req.ShowId.Value
                };
                pyroFetesDbContext.ShowTrucks.Add(newShowTruck);
            }
        }

        await pyroFetesDbContext.SaveChangesAsync(ct);

        var result = new ReadTruckDto
        {
            Id = truck.Id,
            Type = truck.Type,
            MaxExplosiveCapacity = truck.MaxExplosiveCapacity,
            Sizes = truck.Sizes,
            Statut = truck.Status,
            ShowId = req.ShowId
        };

        await Send.OkAsync(result, ct);
    }
}