using System.Collections.Immutable;
using System.Text.Json.Serialization;
using StellaOps.Policy.Engine.Attestation;

namespace StellaOps.Policy.Engine.ConsoleSurface;

/// <summary>
/// Console request for attestation report query per CONTRACT-VERIFICATION-POLICY-006.
/// </summary>
internal sealed record ConsoleAttestationReportRequest(
    [property: JsonPropertyName("artifact_digests")] IReadOnlyList<string>? ArtifactDigests,
    [property: JsonPropertyName("artifact_uri_pattern")] string? ArtifactUriPattern,
    [property: JsonPropertyName("policy_ids")] IReadOnlyList<string>? PolicyIds,
    [property: JsonPropertyName("predicate_types")] IReadOnlyList<string>? PredicateTypes,
    [property: JsonPropertyName("status_filter")] IReadOnlyList<string>? StatusFilter,
    [property: JsonPropertyName("from_time")] DateTimeOffset? FromTime,
    [property: JsonPropertyName("to_time")] DateTimeOffset? ToTime,
    [property: JsonPropertyName("group_by")] ConsoleReportGroupBy? GroupBy,
    [property: JsonPropertyName("sort_by")] ConsoleReportSortBy? SortBy,
    [property: JsonPropertyName("page")] int Page = 1,
    [property: JsonPropertyName("page_size")] int PageSize = 25);

/// <summary>
/// Grouping options for Console attestation reports.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter<ConsoleReportGroupBy>))]
internal enum ConsoleReportGroupBy
{
    None,
    Policy,
    PredicateType,
    Status,
    ArtifactUri
}

/// <summary>
/// Sorting options for Console attestation reports.
/// </summary>
[JsonConverter(typeof(JsonStringEnumConverter<ConsoleReportSortBy>))]
internal enum ConsoleReportSortBy
{
    EvaluatedAtDesc,
    EvaluatedAtAsc,
    StatusAsc,
    StatusDesc,
    CoverageDesc,
    CoverageAsc
}

/// <summary>
/// Console response for attestation reports.
/// </summary>
internal sealed record ConsoleAttestationReportResponse(
    [property: JsonPropertyName("schema_version")] string SchemaVersion,
    [property: JsonPropertyName("summary")] ConsoleReportSummary Summary,
    [property: JsonPropertyName("reports")] IReadOnlyList<ConsoleArtifactReport> Reports,
    [property: JsonPropertyName("groups")] IReadOnlyList<ConsoleReportGroup>? Groups,
    [property: JsonPropertyName("pagination")] ConsolePagination Pagination,
    [property: JsonPropertyName("filters_applied")] ConsoleFiltersApplied FiltersApplied);

/// <summary>
/// Summary of attestation reports for Console.
/// </summary>
internal sealed record ConsoleReportSummary(
    [property: JsonPropertyName("total_artifacts")] int TotalArtifacts,
    [property: JsonPropertyName("total_attestations")] int TotalAttestations,
    [property: JsonPropertyName("status_breakdown")] ImmutableDictionary<string, int> StatusBreakdown,
    [property: JsonPropertyName("coverage_rate")] double CoverageRate,
    [property: JsonPropertyName("compliance_rate")] double ComplianceRate,
    [property: JsonPropertyName("average_age_hours")] double AverageAgeHours);

/// <summary>
/// Console-friendly artifact attestation report.
/// </summary>
internal sealed record ConsoleArtifactReport(
    [property: JsonPropertyName("artifact_digest")] string ArtifactDigest,
    [property: JsonPropertyName("artifact_uri")] string? ArtifactUri,
    [property: JsonPropertyName("artifact_short_digest")] string ArtifactShortDigest,
    [property: JsonPropertyName("status")] string Status,
    [property: JsonPropertyName("status_label")] string StatusLabel,
    [property: JsonPropertyName("status_icon")] string StatusIcon,
    [property: JsonPropertyName("attestation_count")] int AttestationCount,
    [property: JsonPropertyName("coverage_percentage")] double CoveragePercentage,
    [property: JsonPropertyName("policies_passed")] int PoliciesPassed,
    [property: JsonPropertyName("policies_failed")] int PoliciesFailed,
    [property: JsonPropertyName("evaluated_at")] DateTimeOffset EvaluatedAt,
    [property: JsonPropertyName("evaluated_at_relative")] string EvaluatedAtRelative,
    [property: JsonPropertyName("details")] ConsoleReportDetails? Details);

/// <summary>
/// Detailed report information for Console.
/// </summary>
internal sealed record ConsoleReportDetails(
    [property: JsonPropertyName("predicate_types")] IReadOnlyList<ConsolePredicateTypeStatus> PredicateTypes,
    [property: JsonPropertyName("policies")] IReadOnlyList<ConsolePolicyStatus> Policies,
    [property: JsonPropertyName("signers")] IReadOnlyList<ConsoleSignerInfo> Signers,
    [property: JsonPropertyName("issues")] IReadOnlyList<ConsoleIssue> Issues);

/// <summary>
/// Predicate type status for Console.
/// </summary>
internal sealed record ConsolePredicateTypeStatus(
    [property: JsonPropertyName("type")] string Type,
    [property: JsonPropertyName("type_label")] string TypeLabel,
    [property: JsonPropertyName("status")] string Status,
    [property: JsonPropertyName("status_label")] string StatusLabel,
    [property: JsonPropertyName("freshness")] string Freshness);

/// <summary>
/// Policy status for Console.
/// </summary>
internal sealed record ConsolePolicyStatus(
    [property: JsonPropertyName("policy_id")] string PolicyId,
    [property: JsonPropertyName("policy_version")] string PolicyVersion,
    [property: JsonPropertyName("status")] string Status,
    [property: JsonPropertyName("status_label")] string StatusLabel,
    [property: JsonPropertyName("verdict")] string Verdict);

/// <summary>
/// Signer information for Console.
/// </summary>
internal sealed record ConsoleSignerInfo(
    [property: JsonPropertyName("key_fingerprint_short")] string KeyFingerprintShort,
    [property: JsonPropertyName("issuer")] string? Issuer,
    [property: JsonPropertyName("subject")] string? Subject,
    [property: JsonPropertyName("algorithm")] string Algorithm,
    [property: JsonPropertyName("verified")] bool Verified,
    [property: JsonPropertyName("trusted")] bool Trusted);

/// <summary>
/// Issue for Console display.
/// </summary>
internal sealed record ConsoleIssue(
    [property: JsonPropertyName("severity")] string Severity,
    [property: JsonPropertyName("message")] string Message,
    [property: JsonPropertyName("field")] string? Field);

/// <summary>
/// Report group for Console.
/// </summary>
internal sealed record ConsoleReportGroup(
    [property: JsonPropertyName("key")] string Key,
    [property: JsonPropertyName("label")] string Label,
    [property: JsonPropertyName("count")] int Count,
    [property: JsonPropertyName("status_breakdown")] ImmutableDictionary<string, int> StatusBreakdown);

/// <summary>
/// Pagination information for Console.
/// </summary>
internal sealed record ConsolePagination(
    [property: JsonPropertyName("page")] int Page,
    [property: JsonPropertyName("page_size")] int PageSize,
    [property: JsonPropertyName("total_pages")] int TotalPages,
    [property: JsonPropertyName("total_items")] int TotalItems,
    [property: JsonPropertyName("has_next")] bool HasNext,
    [property: JsonPropertyName("has_previous")] bool HasPrevious);

/// <summary>
/// Applied filters information for Console.
/// </summary>
internal sealed record ConsoleFiltersApplied(
    [property: JsonPropertyName("artifact_count")] int ArtifactCount,
    [property: JsonPropertyName("policy_ids")] IReadOnlyList<string>? PolicyIds,
    [property: JsonPropertyName("predicate_types")] IReadOnlyList<string>? PredicateTypes,
    [property: JsonPropertyName("status_filter")] IReadOnlyList<string>? StatusFilter,
    [property: JsonPropertyName("time_range")] ConsoleTimeRange? TimeRange);

/// <summary>
/// Time range for Console filters.
/// </summary>
internal sealed record ConsoleTimeRange(
    [property: JsonPropertyName("from")] DateTimeOffset? From,
    [property: JsonPropertyName("to")] DateTimeOffset? To);

/// <summary>
/// Console request for attestation statistics dashboard.
/// </summary>
internal sealed record ConsoleAttestationDashboardRequest(
    [property: JsonPropertyName("time_range")] string? TimeRange,
    [property: JsonPropertyName("policy_ids")] IReadOnlyList<string>? PolicyIds,
    [property: JsonPropertyName("artifact_uri_pattern")] string? ArtifactUriPattern);

/// <summary>
/// Console response for attestation statistics dashboard.
/// </summary>
internal sealed record ConsoleAttestationDashboardResponse(
    [property: JsonPropertyName("schema_version")] string SchemaVersion,
    [property: JsonPropertyName("overview")] ConsoleDashboardOverview Overview,
    [property: JsonPropertyName("trends")] ConsoleDashboardTrends Trends,
    [property: JsonPropertyName("top_issues")] IReadOnlyList<ConsoleDashboardIssue> TopIssues,
    [property: JsonPropertyName("policy_compliance")] IReadOnlyList<ConsoleDashboardPolicyCompliance> PolicyCompliance,
    [property: JsonPropertyName("evaluated_at")] DateTimeOffset EvaluatedAt);

/// <summary>
/// Dashboard overview for Console.
/// </summary>
internal sealed record ConsoleDashboardOverview(
    [property: JsonPropertyName("total_artifacts")] int TotalArtifacts,
    [property: JsonPropertyName("total_attestations")] int TotalAttestations,
    [property: JsonPropertyName("pass_rate")] double PassRate,
    [property: JsonPropertyName("coverage_rate")] double CoverageRate,
    [property: JsonPropertyName("average_freshness_hours")] double AverageFreshnessHours);

/// <summary>
/// Dashboard trends for Console.
/// </summary>
internal sealed record ConsoleDashboardTrends(
    [property: JsonPropertyName("pass_rate_change")] double PassRateChange,
    [property: JsonPropertyName("coverage_rate_change")] double CoverageRateChange,
    [property: JsonPropertyName("attestation_count_change")] int AttestationCountChange,
    [property: JsonPropertyName("trend_direction")] string TrendDirection);

/// <summary>
/// Dashboard issue for Console.
/// </summary>
internal sealed record ConsoleDashboardIssue(
    [property: JsonPropertyName("issue")] string Issue,
    [property: JsonPropertyName("count")] int Count,
    [property: JsonPropertyName("severity")] string Severity);

/// <summary>
/// Dashboard policy compliance for Console.
/// </summary>
internal sealed record ConsoleDashboardPolicyCompliance(
    [property: JsonPropertyName("policy_id")] string PolicyId,
    [property: JsonPropertyName("policy_version")] string PolicyVersion,
    [property: JsonPropertyName("compliance_rate")] double ComplianceRate,
    [property: JsonPropertyName("artifacts_evaluated")] int ArtifactsEvaluated);