using Sandbox.ModAPI.Ingame;
using System.Collections.Generic;
using VRage.Game.ModAPI.Ingame.Utilities;

namespace IngameScript
{
    public partial class Program : MyGridProgram
    {
        private Dictionary<string, Airlock> _airlocks;
        private List<IEnumerator<bool>> _jobs;

        private int _tickCount = 0;
        private MyCommandLine _cli;
        private Console _console;
        private MyIni _ini;

        public Program()
        {
            _ini = new MyIni();
            _console = new Console(this, _ini);
            _cli = new MyCommandLine();
            _jobs = new List<IEnumerator<bool>>();
            _airlocks = new Dictionary<string, Airlock>();

            List<IMyTerminalBlock> airlockBlocks = new List<IMyTerminalBlock>();
            GridTerminalSystem.GetBlocksOfType(airlockBlocks, block => block.CustomName.Contains("!Airlock"));
            foreach (IMyTerminalBlock block in airlockBlocks)
            {
                {
                    string airlockName = Utils.ExtractTag(block, "!Airlock");
                    if (!_airlocks.ContainsKey(airlockName))
                    {
                        _airlocks[airlockName] = new Airlock(this, _console, airlockName);
                    }

                    _airlocks[airlockName].AddBlock(block);
                }

                // TODO: it would be most convenient to just delete non-functional Airlocks... but maybe they're worth
                // keeping around for warnings.
            }
            _console.Print($"Found {_airlocks.Count} airlocks.");
        }

        public void Main(string argument, UpdateType updateSource)
        {
            _console.PrintLower($"Total Ticks: {_tickCount++}");

            if (updateSource == UpdateType.Trigger || updateSource == UpdateType.Terminal)
            {
                _cli.TryParse(argument);
                if (_cli.ArgumentCount == 0) { _console.Print("You must provide an airlock ID."); }
                else
                {
                    string airlockName = $"!Airlock{_cli.Argument(0)}";
                    if (!_airlocks.ContainsKey(airlockName))
                    {
                        _console.Print($"Invalid airlock ID {_cli.Argument(0)}");
                    }
                    else
                    {
                        _jobs.Add(_airlocks[airlockName].CycleAirlock());
                        Runtime.UpdateFrequency |= UpdateFrequency.Update1;
                    }
                }
            }

            for (int i = 0; i < _jobs.Count; i++)
            {
                IEnumerator<bool> job = _jobs[i];
                if (!job.MoveNext())
                {
                    job.Dispose();
                    _jobs.Remove(job);
                    i--;
                    _console.Print("Job Removed From Queue.");
                }
            }

            if (_jobs.Count == 0) Runtime.UpdateFrequency = UpdateFrequency.None;
        }
    }
}