// -----------------------------------------------------------------------------
// LineageExportModels.cs
// Sprint: SPRINT_20251229_005_001_BE_sbom_lineage_api (LIN-010)
// Task: Evidence pack export models
// -----------------------------------------------------------------------------

namespace StellaOps.SbomService.Models;

/// <summary>
/// Request to export an evidence pack for a lineage comparison.
/// </summary>
internal sealed record LineageExportRequest
{
    public required string FromDigest { get; init; }
    public required string ToDigest { get; init; }
    public required string TenantId { get; init; }
    public bool IncludeSbomDiff { get; init; } = true;
    public bool IncludeVexDeltas { get; init; } = true;
    public bool IncludeReachabilityDiff { get; init; } = false;
    public bool IncludeAttestations { get; init; } = true;
    public bool SignWithKeyless { get; init; } = false;
}

/// <summary>
/// Response containing evidence pack download URL.
/// </summary>
internal sealed record LineageExportResponse
{
    public required string ExportId { get; init; }
    public required string DownloadUrl { get; init; }
    public required DateTimeOffset ExpiresAt { get; init; }
    public required long SizeBytes { get; init; }
    public string? SignatureDigest { get; init; }
}

/// <summary>
/// Evidence pack structure (NDJSON format).
/// </summary>
internal sealed record EvidencePack
{
    public required string Version { get; init; }
    public required string FromDigest { get; init; }
    public required string ToDigest { get; init; }
    public required DateTimeOffset GeneratedAt { get; init; }
    public required string ReplayHash { get; init; }
    public SbomDiffSummary? SbomDiff { get; init; }
    public IReadOnlyList<VexDeltaSummary>? VexDeltas { get; init; }
    public object? ReachabilityDiff { get; init; }
    public IReadOnlyList<string>? AttestationDigests { get; init; }
}