using System.Collections.Immutable;

namespace StellaOps.AirGap.Bundle.Models;

/// <summary>
/// Manifest for an offline bundle, inventorying all components with content digests.
/// Used for integrity verification and completeness checking in air-gapped environments.
/// Sprint: SPRINT_20260118_018 (TASK-018-001) - Updated to v2.0.0
/// </summary>
public sealed record BundleManifest
{
    public required string BundleId { get; init; }
    public string SchemaVersion { get; init; } = "2.0.0";
    public required string Name { get; init; }
    public required string Version { get; init; }
    public required DateTimeOffset CreatedAt { get; init; }
    public DateTimeOffset? ExpiresAt { get; init; }
    public required ImmutableArray<FeedComponent> Feeds { get; init; }
    public required ImmutableArray<PolicyComponent> Policies { get; init; }
    public required ImmutableArray<CryptoComponent> CryptoMaterials { get; init; }
    public ImmutableArray<CatalogComponent> Catalogs { get; init; } = [];
    public RekorSnapshot? RekorSnapshot { get; init; }
    public ImmutableArray<CryptoProviderComponent> CryptoProviders { get; init; } = [];
    public ImmutableArray<RuleBundleComponent> RuleBundles { get; init; } = [];
    public long TotalSizeBytes { get; init; }
    public string? BundleDigest { get; init; }

    /// <summary>
    /// Export mode indicator: "light" or "full".
    /// Sprint: SPRINT_20260122_040 (040-04)
    /// </summary>
    public string? ExportMode { get; init; }

    // -------------------------------------------------------------------------
    // v2.0.0 Additions - Sprint: SPRINT_20260118_018 (TASK-018-001)
    // -------------------------------------------------------------------------

    /// <summary>
    /// Image reference this bundle is for (advisory-specified format).
    /// Example: "registry.example.com/app@sha256:..."
    /// </summary>
    public string? Image { get; init; }

    /// <summary>
    /// List of artifacts in the bundle with path and type information.
    /// </summary>
    public ImmutableArray<BundleArtifact> Artifacts { get; init; } = [];

    /// <summary>
    /// Verification section with keys and expectations.
    /// </summary>
    public BundleVerifySection? Verify { get; init; }

    /// <summary>
    /// Canonical manifest hash (sha256 over canonical JSON).
    /// </summary>
    public string? CanonicalManifestHash { get; init; }

    /// <summary>
    /// Subject digests for the bundle target.
    /// </summary>
    public BundleSubject? Subject { get; init; }

    /// <summary>
    /// Timestamp entries for offline verification.
    /// </summary>
    public ImmutableArray<TimestampEntry> Timestamps { get; init; } = [];

    /// <summary>
    /// Rekor proof entries for offline verification.
    /// </summary>
    public ImmutableArray<RekorProofEntry> RekorProofs { get; init; } = [];
}