// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using TorchSharp;
 
namespace Microsoft.ML.TorchSharp.NasBert.Models
{
    internal abstract class BaseModel : torch.nn.Module<torch.Tensor, torch.Tensor, torch.Tensor>
    {
        protected readonly NasBertTrainer.NasBertOptions Options;
        public BertModelType EncoderType => Options.ModelType;
 
        public BertTaskType HeadType => Options.TaskType;
 
#pragma warning disable CA1024 // Use properties where appropriate: Modules should be fields in TorchSharp
        public abstract TransformerEncoder GetEncoder();
 
        public abstract BaseHead GetHead();
 
#pragma warning restore CA1024 // Use properties where appropriate
 
        protected BaseModel(NasBertTrainer.NasBertOptions options)
            : base(nameof(BaseModel))
        {
            Options = options ?? throw new ArgumentNullException(nameof(options));
        }
 
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "MSML_GeneralName:This name should be PascalCased", Justification = "Need to match TorchSharp.")]
        public override torch.Tensor forward(torch.Tensor srcTokens, torch.Tensor tokenMask = null)
            => throw new NotImplementedException();
 
        [System.Diagnostics.CodeAnalysis.SuppressMessage("Naming", "MSML_GeneralName:This name should be PascalCased", Justification = "Need to match TorchSharp.")]
        public override void train(bool train = true)
        {
            base.train(train);
        }
    }
}