namespace Launcher.Next.Core;

public enum LauncherMode { Legacy, DryRun, NextPilot, NextPreferred }
public enum PluginExecutionMode { Smoke, DryRun, Apply }
public sealed record ProductInstallation(string ExecutablePath, string ProductVersion, string Architecture, IReadOnlyList<string> Profiles);
public sealed record PackageFile(string Path, long Length, string Sha256, bool Optional = false);
public sealed record StartupDefinition(string Type, string Command);
public sealed record PackageManifest(
    int SchemaVersion, string PackageId, string Version, string Product, int ProductYear,
    string Architecture, string EntryAssembly, IReadOnlyList<PackageFile> Files, StartupDefinition Startup,
    string? MinimumLauncherVersion = null, IReadOnlyList<string>? CompatibleAutoCadSeries = null,
    string? RequiredRuntime = null, IReadOnlyList<string>? Dependencies = null,
    IReadOnlyList<string>? OptionalResources = null, string? RolloutChannel = null,
    bool Disabled = false, bool RollbackSafe = false, string? ReleaseNotesReference = null);
public sealed record ValidationIssue(string Code, string Message);
public sealed record ValidationResult(IReadOnlyList<ValidationIssue> Issues)
{ public bool IsValid => Issues.Count == 0; public static ValidationResult Success { get; } = new([]); }
public sealed record PackageProgress(string Stage, int Completed, int Total);
public sealed record ActivationResult(string CurrentVersion, string? PreviousVersion);
public sealed record PackagePayloadBinding(string RelativePath,long Length,string Sha256);
public sealed record PackageActivationReceipt(string OperationId, string PackageId, string Version, string? PreviousVersion, DateTimeOffset ActivatedUtc, long PointerGeneration = 0, string? ActiveRootIdentity = null, int SchemaVersion = 2, string? ManifestSha256 = null, string? PayloadSetSha256 = null, string? RosterIdentity = null, IReadOnlyList<PackagePayloadBinding>? PayloadFiles = null, long PointerGenerationBefore = 0, string? EvidenceCorrelationId = null);
public sealed record PackageActivationResult(string Outcome, PackageActivationReceipt? Receipt);
public sealed record PackageRollbackResult(string Outcome, string? CurrentVersion);
public sealed record ImmutableLocalPackage(string PackageId, string Version, string LocalPackageRoot);
public sealed record PackageStagingOwnership(string OperationId, string PackageId, string Version, string StagingDirectory, DateTimeOffset CreatedUtc, string MarkerIdentity);
public sealed record PackageStagingCleanupResult(string Outcome, string OperationId);
public enum PackageLifecycleFaultPoint { AfterStagingAllocated, DuringPayloadCopy, AfterPayloadCopyBeforeValidation, BeforeImmutableCommit, AfterImmutableCommitBeforeReturn, BeforePointerTempWrite, BeforePointerReplace, BeforePointerReadback, BeforeRollbackReplace, BeforeRollbackReadback, DuringOwnedStagingCleanup }
public interface IPackageLifecycleFaultInjector { void ThrowIfRequested(PackageLifecycleFaultPoint point); }
public sealed class NoOpPackageLifecycleFaultInjector : IPackageLifecycleFaultInjector { public void ThrowIfRequested(PackageLifecycleFaultPoint point) { } }
public interface IPackageMaterializer { Task<ImmutableLocalPackage> MaterializeAsync(PackageManifest manifest, string sourceRoot, CancellationToken cancellationToken, IProgress<PackageProgress>? progress = null); }
public sealed record PackageRequirement(string PackageId, string Product, int ProductYear, string Architecture, string Channel, string RequiredVersion, string RosterIdentity, bool AllowOfflineFallback);
public sealed record CatalogPackage(PackageManifest Manifest, string SourceRoot);
public sealed record PackageResolutionEvidence(string Code, string Detail);
public sealed record PackageResolutionResult(CachedPackageResolution? Selected, bool Online, IReadOnlyList<PackageResolutionEvidence> Evidence)
{ public bool IsResolved => Selected is not null; }
public sealed record LaunchRequest(ProductInstallation Product, string Profile, string StartupScriptPath, bool DryRun);
public sealed record PreparedLaunch(string Executable, IReadOnlyList<string> Arguments, string WorkingDirectory, bool WouldStart);

public interface IProductDiscovery { ProductInstallation? DiscoverPlant3D(int year); }
public interface IPackageCatalogClient { Task<PackageManifest?> GetManifestAsync(string packageId, CancellationToken cancellationToken); }
public interface IPackageCatalogPackageAcquirer { Task<CatalogPackage?> AcquireAsync(PackageRequirement requirement, CancellationToken cancellationToken); }
public interface IPackageManifestValidator { ValidationResult Validate(PackageManifest manifest, int productYear, string architecture); }
public interface IPackageSynchronizer { Task<ActivationResult> SynchronizeAsync(PackageManifest manifest, string sourceRoot, CancellationToken cancellationToken, IProgress<PackageProgress>? progress = null); }
public interface ILocalPackageStore { Task<string?> GetCurrentVersionAsync(string packageId, CancellationToken cancellationToken); Task<string?> GetPreviousVersionAsync(string packageId, CancellationToken cancellationToken); }
public interface IPackageActivator { Task<ActivationResult> ActivateAsync(string packageId, string version, CancellationToken cancellationToken); }
public interface IRollbackManager { Task<string?> RollbackAsync(string packageId, CancellationToken cancellationToken); }
public sealed record CachedPackageResolution(string PackageId, string Version, string LocalPackageRoot, bool IsOfflineFallback, string Reason);
public interface ILastKnownGoodPackageResolver { Task<CachedPackageResolution?> ResolveAsync(PackageRequirement requirement, CancellationToken cancellationToken); }
public interface IPackageRequirementCacheBinder { Task BindAsync(PackageRequirement requirement, string version, CancellationToken cancellationToken); }
public interface IAutodeskProcessLauncher { PreparedLaunch Prepare(LaunchRequest request); }
public sealed record ResolvedAutomationScriptPaths(string ValidatedPackageRoot, string EntryAssembly, string FixtureOrthoDwg, string FixtureModelDwg, string AutomationScriptPath, bool Diagnostic, bool Apply);
public interface IStartupScriptBuilder { string BuildNetloadScript(string validatedPackageRoot, string entryAssembly); string BuildAutomationScript(ResolvedAutomationScriptPaths paths); }
public interface ILauncherConfigurationProvider { LauncherMode GetMode(); }
public interface ILauncherTelemetry { void Write(string eventType, IReadOnlyDictionary<string, object?>? fields = null); }
public interface IClock { DateTimeOffset UtcNow { get; } }
public interface IFileHasher { Task<string> Sha256Async(string path, CancellationToken cancellationToken); }