using Distribution.Infra.UoW;

namespace Distribution.Features.Warehouse;

public class WarehouseService(IWarehouseRepository repo, IUnitOfWork uow)
{
    private static WarehouseResponse ToResponse(Models.Warehouse w) =>
        new(w.Id, w.Name, w.Location, w.Type, w.VehicleId, w.IsActive, w.CreatedAt);

    public async Task<List<WarehouseResponse>> GetAllAsync() =>
        (await repo.GetAllAsync())
            .Where(w => w.IsActive)
            .Select(ToResponse)
            .ToList();

    public async Task<WarehouseResponse?> GetByIdAsync(Guid id)
    {
        var warehouse = await repo.GetByIdAsync(id);
        if (warehouse is null || !warehouse.IsActive) return null;
        return ToResponse(warehouse);
    }

    public async Task<WarehouseResponse> CreateAsync(CreateWarehouseRequest request, CancellationToken ct = default)
    {
        var warehouse = new Models.Warehouse
        {
            Name = request.Name,
            Location = request.Location,
            Type = request.Type,
            VehicleId = request.VehicleId
        };
        await uow.BeginAsync(ct);
        try
        {
            await repo.AddAsync(warehouse);
            await uow.CommitAsync(ct);
        }
        catch
        {
            await uow.RollbackAsync(ct);
            throw;
        }
        return ToResponse(warehouse);
    }

    public async Task<WarehouseResponse?> UpdateAsync(Guid id, UpdateWarehouseRequest request, CancellationToken ct = default)
    {
        var warehouse = await repo.GetByIdAsync(id);
        if (warehouse is null || !warehouse.IsActive) return null;
        warehouse.Name = request.Name;
        warehouse.Location = request.Location;
        warehouse.Type = request.Type;
        warehouse.VehicleId = request.VehicleId;
        await uow.BeginAsync(ct);
        try
        {
            repo.Update(warehouse);
            await uow.CommitAsync(ct);
        }
        catch
        {
            await uow.RollbackAsync(ct);
            throw;
        }
        return ToResponse(warehouse);
    }

    public async Task<bool> DeleteAsync(Guid id, CancellationToken ct = default)
    {
        var warehouse = await repo.GetByIdAsync(id);
        if (warehouse is null || !warehouse.IsActive) return false;
        await uow.BeginAsync(ct);
        try
        {
            repo.Remove(warehouse);
            await uow.CommitAsync(ct);
        }
        catch
        {
            await uow.RollbackAsync(ct);
            throw;
        }
        return true;
    }
}