using System;

namespace GB5Shared.DTO.GOP
{
    // ─────────────────────────────────────────────────────────────
    // DTOs pushed via GopExecutionHub to connected SignalR clients.
    // Defined in GB5Shared so both BLL (IGopHubNotifier) and SL
    // (GopExecutionHub) can reference them without a circular
    // dependency between FrameworkBLL and FrameworkSL.
    // ─────────────────────────────────────────────────────────────

    /// <summary>
    /// Lightweight execution status projection pushed after each
    /// pipeline step. The UI uses this to update the live status
    /// panel without polling. Full detail is loaded on demand via
    /// GET /GOP/GetGopExecutionDetail.
    /// </summary>
    public sealed class GopExecutionStatusDTO
    {
        public int      ExecutionId      { get; init; }
        public string   FlowCode         { get; init; } = string.Empty;
        public string   SnapshotVersion  { get; init; } = string.Empty;
        /// <summary>Created | Running | Success | Failed</summary>
        public string   Status           { get; init; } = string.Empty;
        public string?  CurrentNodeCode  { get; init; }
        public long?    TotalDurationMs  { get; init; }
        public DateTime StartedAt        { get; init; }
        public string?  ErrorMessage     { get; init; }
        /// <summary>Set when Status='PendingApproval' — who the paused step is assigned to.</summary>
        public string?  AssignedRole     { get; init; }
        public int?     AssignedToUserId { get; init; }
    }

    /// <summary>
    /// Pushed when a new dead-letter entry is created for this
    /// tenant, allowing the UI DLQ badge to update without polling.
    /// </summary>
    public sealed class GopDLQSummaryDTO
    {
        public int      DlqId        { get; init; }
        public int      ExecutionId  { get; init; }
        public string   FlowCode     { get; init; } = string.Empty;
        public string   NodeCode     { get; init; } = string.Empty;
        public string   ErrorMessage { get; init; } = string.Empty;
        public DateTime MovedAt      { get; init; }
    }
}