// 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 System.Collections.Immutable;
using Microsoft.CodeAnalysis.Emit;
using Microsoft.CodeAnalysis.EditAndContinue.Contracts;
 
namespace Microsoft.CodeAnalysis.EditAndContinue
{
    internal readonly struct SolutionUpdate
    {
        public readonly ModuleUpdates ModuleUpdates;
        public readonly ImmutableArray<(Guid ModuleId, ImmutableArray<(ManagedModuleMethodId Method, NonRemappableRegion Region)>)> NonRemappableRegions;
        public readonly ImmutableArray<(ProjectId ProjectId, EmitBaseline Baseline)> EmitBaselines;
        public readonly ImmutableArray<(ProjectId ProjectId, ImmutableArray<Diagnostic> Diagnostics)> Diagnostics;
        public readonly ImmutableArray<(DocumentId DocumentId, ImmutableArray<RudeEditDiagnostic> Diagnostics)> DocumentsWithRudeEdits;
        public readonly Diagnostic? SyntaxError;
 
        public SolutionUpdate(
            ModuleUpdates moduleUpdates,
            ImmutableArray<(Guid ModuleId, ImmutableArray<(ManagedModuleMethodId Method, NonRemappableRegion Region)>)> nonRemappableRegions,
            ImmutableArray<(ProjectId ProjectId, EmitBaseline Baseline)> emitBaselines,
            ImmutableArray<(ProjectId ProjectId, ImmutableArray<Diagnostic> Diagnostics)> diagnostics,
            ImmutableArray<(DocumentId DocumentId, ImmutableArray<RudeEditDiagnostic> Diagnostics)> documentsWithRudeEdits,
            Diagnostic? syntaxError)
        {
            ModuleUpdates = moduleUpdates;
            NonRemappableRegions = nonRemappableRegions;
            EmitBaselines = emitBaselines;
            Diagnostics = diagnostics;
            DocumentsWithRudeEdits = documentsWithRudeEdits;
            SyntaxError = syntaxError;
        }
 
        public static SolutionUpdate Blocked(
            ImmutableArray<(ProjectId, ImmutableArray<Diagnostic>)> diagnostics,
            ImmutableArray<(DocumentId, ImmutableArray<RudeEditDiagnostic>)> documentsWithRudeEdits,
            Diagnostic? syntaxError,
            bool hasEmitErrors)
            => new(
                new(syntaxError != null || hasEmitErrors ? ModuleUpdateStatus.Blocked : ModuleUpdateStatus.RestartRequired, ImmutableArray<ModuleUpdate>.Empty),
                ImmutableArray<(Guid, ImmutableArray<(ManagedModuleMethodId, NonRemappableRegion)>)>.Empty,
                ImmutableArray<(ProjectId, EmitBaseline)>.Empty,
                diagnostics,
                documentsWithRudeEdits,
                syntaxError);
    }
}