using System;
using System.Text;

using Server.Mobiles;

namespace Server.Custom
{
    /// <summary>
    ///     Logs the global town-crier entry list every few seconds so a towncrier.add / remove
    ///     round-trip can be observed landing in the actual game state, not just acknowledged.
    ///
    ///     Test scaffolding. Never deployed. Read-only.
    /// </summary>
    public static class BridgeCrierProbe
    {
        public static void Initialize()
        {
            if (Config.Get("Bridge.CrierProbeOnStart", false))
                EventSink.ServerStarted += () =>
                    Timer.DelayCall(TimeSpan.FromSeconds(3.0), TimeSpan.FromSeconds(3.0), Dump);
        }

        private static int _tick;

        private static void Dump()
        {
            try
            {
                var list = GlobalTownCrierEntryList.Instance;
                var entries = list == null ? null : list.Entries;
                int count = entries == null ? 0 : entries.Count;

                var sb = new StringBuilder();
                sb.AppendFormat("[CrierProbe] tick {0}: {1} entries", ++_tick, count);

                if (entries != null)
                {
                    for (int i = 0; i < entries.Count; i++)
                    {
                        var e = entries[i];
                        if (e == null || e.Lines == null)
                            continue;
                        sb.AppendFormat(" | [{0}]", String.Join(" / ", e.Lines));
                    }
                }

                Console.WriteLine(sb.ToString());

                if (_tick >= 6)
                    Timer.DelayCall(TimeSpan.Zero, () => { }); // no-op; probe stops being interesting
            }
            catch (Exception ex)
            {
                Console.WriteLine("[CrierProbe] FAILED: " + ex);
            }
        }
    }
}