using Tiku.Domain.Content;

namespace Tiku.Application.Content;

public sealed record PublishContentReleaseCommand(
    Guid TenantId,
    Guid ActorUserId,
    Guid CurriculumVersionId,
    string Name);

public sealed record ContentReleaseCompilationResult(
    Guid ContentReleaseId,
    int ReleaseNo,
    int PlacementCount,
    int QuestionCount,
    int AudienceSegmentCount,
    int TargetProfileCount,
    string SourceFingerprint,
    DateTimeOffset PublishedAt);

public interface IContentReleaseCompiler
{
    Task<ContentReleaseCompilationResult> PublishAsync(
        PublishContentReleaseCommand command,
        CancellationToken cancellationToken = default);
}

public sealed record ContentCandidateQuery(
    Guid ContentOwnerTenantId,
    IReadOnlyCollection<Guid> ContentReleaseIds,
    IReadOnlyCollection<Guid> AudienceSegmentIds,
    Guid? CurriculumNodeId,
    IReadOnlyCollection<Guid>? CollectionReleaseIds,
    int Limit,
    int Seed,
    string? QuestionType = null,
    int? Difficulty = null);

public sealed record ContentCandidateItem(
    Guid ContentReleaseQuestionId,
    Guid ContentOwnerTenantId,
    Guid ContentReleaseId,
    Guid AudienceSegmentId,
    Guid CurriculumNodeId,
    Guid QuestionPlacementId,
    Guid QuestionAssetOwnerTenantId,
    Guid QuestionAssetId,
    Guid QuestionRevisionId,
    Guid AssessmentPolicyVersionId,
    int Ordinal,
    int? Difficulty,
    string QuestionType);

public interface IContentCandidateReader
{
    Task<IReadOnlyCollection<ContentCandidateItem>> GetCandidatesAsync(
        ContentCandidateQuery query,
        CancellationToken cancellationToken = default);
}

public sealed record ApplyPlatformContentPackageCommand(
    Guid PackageOwnerTenantId,
    Guid PlatformContentPackageVersionId,
    string PackageCode,
    string CellId,
    long EventSequence,
    string ContentHash);

public enum CellPackageApplyStatus
{
    Applied,
    Duplicate,
    IgnoredOutOfOrder
}

public sealed record CellPackageApplyResult(
    CellPackageApplyStatus Status,
    Guid PlatformContentPackageVersionId,
    string CellId,
    long EventSequence,
    string ContentHash);

public interface IPlatformContentPackageProjectionService
{
    Task<CellPackageApplyResult> ApplyAsync(
        ApplyPlatformContentPackageCommand command,
        CancellationToken cancellationToken = default);
}

public sealed class ContentV2Exception(string code, string message) : Exception(message)
{
    public string Code { get; } = code;
}