using System;
using System.Collections.Generic;
using System.Linq;
using Sandbox;
using Sandbox.UI;

namespace MurderGame;

public partial class AssignPhase : BasePhase
{
	private readonly List<uint> Colors = new()
	{
		0x0074D9, // blue
		0x7FDBFF, // aqua
		0x39CCCC, // teal
		0xF012BE, // fuchsia
		0xFF4136, // red
		0xFF851B, // orange
		0xFFDC00, // yellow
		0x3D9970, // olive
		0x2ECC40, // lime
		0x01FF70 // green
	};

	private readonly List<string> NatoNames = new()
	{
		"Alpha",
		"Bravo",
		"Charlie",
		"Delta",
		"Echo",
		"Foxtrot",
		"Golf",
		"Hotel",
		"India",
		"Juliet",
		"Kilo",
		"Lima",
		"Mike",
		"November",
		"Oscar",
		"Papa",
		"Quebec",
		"Romeo",
		"Sierra",
		"Tango",
		"Uniform",
		"Victor",
		"Whiskey",
		"X-Ray",
		"Yankee",
		"Zulu"
	};

	public int TicksElapsed;
	public override string Title => "Assigning teams";

	public override void Activate()
	{
		// cleanup -- start
		foreach ( var entity in Entity.All.OfType<DroppedWeapon>() )
		{
			entity.Delete();
		}

		DeleteFootprints();
		// cleanup -- end

		var detectivesNeeded = 1;
		var murderersNeeded = 1;

		Random random = new(Guid.NewGuid().GetHashCode());

		var spawnPoints = Entity.All.OfType<SpawnPoint>().OrderBy( _ => random.Next() ).ToList();
		var clients = Game.Clients.ToList().OrderBy( _ => random.Next() );
		var natoNamesRemaining = new List<string>( NatoNames.OrderBy( _ => random.Next() ) );
		var colorsRemaining = new List<uint>( Colors.OrderBy( _ => random.Next() ) );

		foreach ( var client in clients )
		{
			if ( client.Pawn != null )
			{
				((Player)client.Pawn).Cleanup();
				client.Pawn.Delete();
			}

			Player pawn = new();
			client.Pawn = pawn;

			if ( spawnPoints.Count == 0 )
			{
				ChatBox.Say( "Could not spawn " + client.Name + " as there are not enough spawn points." );
				pawn.Team = Team.Spectator;
				continue;
			}

			pawn.Dress();

			// re-use names and colours if needed
			if ( natoNamesRemaining.Count == 0 )
			{
				natoNamesRemaining = new List<string>( NatoNames );
			}

			if ( colorsRemaining.Count == 0 )
			{
				colorsRemaining = new List<uint>( Colors );
			}

			// assign team
			if ( murderersNeeded > 0 )
			{
				pawn.Team = Team.Murderer;
				--murderersNeeded;
			}
			else if ( detectivesNeeded > 0 )
			{
				pawn.Team = Team.Detective;
				--detectivesNeeded;
			}
			else
			{
				pawn.Team = Team.Bystander;
			}

			Log.Info( "Assigning " + client.Name + " to team " + pawn.GetTeamName() );

			// position pawn
			var spawnPoint = spawnPoints[0];
			spawnPoints.RemoveAt( 0 );
			var tx = spawnPoint.Transform;
			tx.Position += Vector3.Up * 10.0f;
			pawn.Transform = tx;

			// assign nato name
			var natoName = natoNamesRemaining[0];
			natoNamesRemaining.RemoveAt( 0 );
			pawn.CharacterName = natoName;

			// assign nato name
			var hexColor = colorsRemaining[0];
			colorsRemaining.RemoveAt( 0 );
			pawn.Color = Color.FromRgb( hexColor );

			RoleOverlay.Show( To.Single( client ) );
		}

		TimeLeft = 5;
	}

	[ClientRpc]
	public static void DeleteFootprints()
	{
		foreach ( var entity in Entity.All.OfType<Footprint>() )
		{
			entity.Delete();
		}
	}

	public override void Deactivate()
	{
		foreach ( var client in Game.Clients )
		{
			RoleOverlay.Hide( To.Single( client ) );
		}
	}

	public override void Tick()
	{
		++TicksElapsed;
		if ( TimeLeft == -1 || TicksElapsed % Game.TickRate != 0 || --TimeLeft != 0 )
		{
			return;
		}

		IsFinished = true;
		NextPhase = new PlayPhase();
	}
}