using System.Collections.Generic;
using System.Reflection;
using GameKit.Dependencies.Utilities;
using log4net;
using UnityEngine;

namespace Managers
{
	/// <summary>
	/// Manages dynamic UI elements which can be triggered from everywhere.
	/// </summary>
	public class UIManager : MonoBehaviour
	{
		private static ILog Log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
		[SerializeField] public bool IsUIActiveScene { get; set; }
		public HUD HUD { get; private set; }
		public Announcments Announcments { get; private set; }
		public PauseMenu PauseMenu { get; private set; }
		public MatchEndMenu MatchEndMenu { get; private set; }
		public OffScreenIndicatorManager OffScreenManager;
		public ManageableAudio MatchMusic;


		/// <summary>
		/// Globally accessible member to use manager with.
		/// </summary>
		public static UIManager G { get; private set; }

		void Awake()
		{
			G = this;
			Log.Info("Awake");
		}

		public bool StartManagingMatchUI()
		{
			if (!StartManagingHUD() || !StartManagingAnnouncements()
				|| !StartManagingPauseMenu() || !StartManagingMatchEndMenu())
			{
				Log.Error("Problems when starting in game match UI.");
				return false;
			}
			return true;
		}

		public bool StartManagingHUD()
		{
			if (HUD == null)
			{
				GameObject go = GameObject.Find("HUD");
				if (go == null)
				{
					Log.Error("Could not find HUD GameObject in loaded scenes!");
					return false;
				}
				HUD = go.GetComponent<HUD>();
			}
			return true;
		}

		public bool StartManagingPauseMenu()
		{
			if (PauseMenu == null)
			{
				GameObject go = GameObject.Find("Paused Menu");
				if (go == null)
				{
					Log.Error("Could not find Pause Menu GameObject in loaded scenes!");
					return false;
				}
				PauseMenu = go.GetComponent<PauseMenu>();
			}
			return true;
		}

		public bool StartManagingMatchEndMenu()
		{
			if (MatchEndMenu == null)
			{
				GameObject go = GameObject.Find("Match End Menu");
				if (go == null)
				{
					Log.Error("Could not find Match End Menu GameObject in loaded scenes!");
					return false;
				}
				MatchEndMenu = go.GetComponent<MatchEndMenu>();
			}
			return true;
		}

		public bool StartManagingAnnouncements()
		{
			if (Announcments == null)
			{
				GameObject go = GameObject.Find("Announcer UI");
				if (go == null)
				{
					Log.Error("Could not find Pause Menu GameObject in loaded scenes!");
					return false;
				}
				Announcments = go.GetComponent<Announcments>();
			}
			return true;
		}

		public void AssignHUDElementsToPlayers(List<Player> players)
		{
			foreach (Player p in players)
			{
				IHUDOwner s = p.spawnedCharacter.GetComponent<IHUDOwner>();
				// var BoostUI = HUD.boostCapacities[p.playerNumber - 1].GetComponent<BoostCapacityUI>();
				// BoostUI.SetPlayerName(p);
				// BoostUI.gameObject.SetActive(true);
				// s.BoostUpdated += BoostUI.UpdateFill;

				GameObject lm = Instantiate(HUD.LifeMeter);
				Vector3 pos = lm.transform.localPosition;
				Vector3 angles = lm.transform.localEulerAngles;
				Vector3 scale = lm.transform.localScale;
				lm.transform.SetParent(p.spawnedCharacter.transform);
				lm.transform.localPosition = pos;
				lm.transform.localEulerAngles = angles;
				lm.transform.localScale = scale;
				var LifeMeter = lm.GetComponent<SegmentIndicator>();
				s.LifeUpdated += LifeMeter.SetFill;

				GameObject bm = Instantiate(HUD.BoostMeter);
				pos = bm.transform.localPosition;
				angles = bm.transform.localEulerAngles;
				scale = bm.transform.localScale;
				bm.transform.SetParent(p.spawnedCharacter.transform);
				bm.transform.localPosition = pos;
				bm.transform.localEulerAngles = angles;
				bm.transform.localScale = scale;
				var BoostMeter = bm.GetComponent<SegmentIndicator>();
				s.BoostUpdated += BoostMeter.SetFill;

				OffScreenManager.AddTarget(p.spawnedCharacter, p.character.ShipHullColor);
			}
			// TODO: This belongs somewhere?
			MatchMusic = AudioManager.G.GetGlobalSoundRandom("match_music", true);
			MatchMusic.PlayAudio(true);
		}

		public void StartInputPrompt(Dictionary<int, Player> unassignedPlayers)
		{
			foreach (int playerNumber in unassignedPlayers.Keys)
			{
				HUD.StartJoinPrompt(unassignedPlayers[playerNumber]);
			}
		}

		public void ShowMatchStartPrompt()
		{
			Announcments.AnnounceText("Press Start/Enter \n to start the match!");
		}
		public void HideAnnouncement()
		{
			Announcments.StopAnnouncement();
		}

		public void ShowPauseMenu(Transform transform)
		{
			HUD?.Hide();
			PauseMenu?.Show(transform);
		}

		public void HidePauseMenu()
		{
			PauseMenu?.Hide();
			HUD?.Show();
		}
		public void ShowMatchEndMenu(Transform transform)
		{
			HUD?.Hide();
			MatchEndMenu?.Show(transform);
		}

		public void HideMatchEndMenu()
		{
			MatchEndMenu?.Hide();
			HUD?.Show();
		}
		public void ShowHUD()
		{
			HUD?.Show();
		}

		public void HideHUD()
		{
			HUD?.Hide();
		}
	}
}