// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
using System;
 
// This is needed due to NativeAOT which doesn't enable nullable globally yet
#nullable enable
 
namespace ILLink.Shared
{
    public readonly struct DiagnosticString
    {
        private readonly string _titleFormat;
        private readonly string _messageFormat;
 
        public DiagnosticString(DiagnosticId diagnosticId)
        {
            var resourceManager = SharedStrings.ResourceManager;
            _titleFormat = resourceManager.GetString($"{diagnosticId}Title") ?? throw new InvalidOperationException($"{diagnosticId} does not have a matching resource called {diagnosticId}Title");
            _messageFormat = resourceManager.GetString($"{diagnosticId}Message") ?? throw new InvalidOperationException($"{diagnosticId} does not have a matching resource called {diagnosticId}Message");
        }
 
        public DiagnosticString(string diagnosticResourceStringName)
        {
            var resourceManager = SharedStrings.ResourceManager;
            _titleFormat = resourceManager.GetString($"{diagnosticResourceStringName}Title") ?? throw new InvalidOperationException($"{diagnosticResourceStringName} does not have a matching resource called {diagnosticResourceStringName}Title");
            _messageFormat = resourceManager.GetString($"{diagnosticResourceStringName}Message") ?? throw new InvalidOperationException($"{diagnosticResourceStringName} does not have a matching resource called {diagnosticResourceStringName}Message");
        }
 
        public string GetMessage(params string[] args) =>
            string.Format(_messageFormat, args);
 
        public string GetMessageFormat() => _messageFormat;
 
        public string GetTitle(params string[] args) =>
            string.Format(_titleFormat, args);
 
        public string GetTitleFormat() => _titleFormat;
    }
}