// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.Collections.Generic;
using System.Linq;

namespace Microsoft.AspNetCore.Razor.Language
{
    public abstract class RazorCSharpDocument
    {
        public abstract string GeneratedCode { get; }

        public abstract IReadOnlyList<LineMapping> LineMappings { get; }

        public abstract IReadOnlyList<RazorDiagnostic> Diagnostics { get; }

        public static RazorCSharpDocument Create(string generatedCode, IEnumerable<RazorDiagnostic> diagnostics)
        {
            if (generatedCode == null)
            {
                throw new ArgumentNullException(nameof(generatedCode));
            }

            if (diagnostics == null)
            {
                throw new ArgumentNullException(nameof(diagnostics));
            }

            return new DefaultRazorCSharpDocument(generatedCode, diagnostics.ToArray(), lineMappings: null);
        }

        public static RazorCSharpDocument Create(
            string generatedCode,
            IEnumerable<RazorDiagnostic> diagnostics,
            IEnumerable<LineMapping> lineMappings)
        {
            if (generatedCode == null)
            {
                throw new ArgumentNullException(nameof(generatedCode));
            }

            if (diagnostics == null)
            {
                throw new ArgumentNullException(nameof(diagnostics));
            }

            if (lineMappings == null)
            {
                throw new ArgumentNullException(nameof(lineMappings));
            }

            return new DefaultRazorCSharpDocument(generatedCode, diagnostics.ToArray(), lineMappings.ToArray());
        }
    }
}