namespace StellaOps.Notifier.WebService.Contracts;

/// <summary>
/// Incident list query parameters.
/// </summary>
public sealed record IncidentListQuery
{
    /// <summary>
    /// Filter by status (open, acknowledged, resolved).
    /// </summary>
    public string? Status { get; init; }

    /// <summary>
    /// Filter by event kind prefix.
    /// </summary>
    public string? EventKindPrefix { get; init; }

    /// <summary>
    /// Filter incidents after this timestamp.
    /// </summary>
    public DateTimeOffset? Since { get; init; }

    /// <summary>
    /// Filter incidents before this timestamp.
    /// </summary>
    public DateTimeOffset? Until { get; init; }

    /// <summary>
    /// Maximum number of results.
    /// </summary>
    public int? Limit { get; init; }

    /// <summary>
    /// Cursor for pagination.
    /// </summary>
    public string? Cursor { get; init; }
}

/// <summary>
/// Incident response DTO.
/// </summary>
public sealed record IncidentResponse
{
    public required string IncidentId { get; init; }
    public required string TenantId { get; init; }
    public required string EventKind { get; init; }
    public required string Status { get; init; }
    public required string Severity { get; init; }
    public required string Title { get; init; }
    public string? Description { get; init; }
    public required int EventCount { get; init; }
    public required DateTimeOffset FirstOccurrence { get; init; }
    public required DateTimeOffset LastOccurrence { get; init; }
    public string? AcknowledgedBy { get; init; }
    public DateTimeOffset? AcknowledgedAt { get; init; }
    public string? ResolvedBy { get; init; }
    public DateTimeOffset? ResolvedAt { get; init; }
    public List<string>? Labels { get; init; }
    public Dictionary<string, string>? Metadata { get; init; }
}

/// <summary>
/// Incident list response with pagination.
/// </summary>
public sealed record IncidentListResponse
{
    public required List<IncidentResponse> Incidents { get; init; }
    public required int TotalCount { get; init; }
    public string? NextCursor { get; init; }
}

/// <summary>
/// Request to acknowledge an incident.
/// </summary>
public sealed record IncidentAckRequest
{
    /// <summary>
    /// Actor performing the acknowledgement.
    /// </summary>
    public string? Actor { get; init; }

    /// <summary>
    /// Optional comment.
    /// </summary>
    public string? Comment { get; init; }
}

/// <summary>
/// Request to resolve an incident.
/// </summary>
public sealed record IncidentResolveRequest
{
    /// <summary>
    /// Actor resolving the incident.
    /// </summary>
    public string? Actor { get; init; }

    /// <summary>
    /// Resolution reason.
    /// </summary>
    public string? Reason { get; init; }

    /// <summary>
    /// Optional comment.
    /// </summary>
    public string? Comment { get; init; }
}

/// <summary>
/// Delivery history item for an incident.
/// </summary>
public sealed record DeliveryHistoryItem
{
    public required string DeliveryId { get; init; }
    public required string ChannelType { get; init; }
    public required string ChannelName { get; init; }
    public required string Status { get; init; }
    public required DateTimeOffset Timestamp { get; init; }
    public string? ErrorMessage { get; init; }
    public int Attempts { get; init; }
}