using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public class DialogueManager : MonoBehaviour
{
	#region Statication

	public static DialogueManager instance;

	private void Awake()
	{
		if (instance != null && instance != this)
		{
			Destroy(gameObject);
			return;
		}
		instance = this;
	}

	#endregion
	[Header("Status")]
	public DialogueScript scriptToShow;
	public int currentText;
	public bool dialogueActive;
	[Header("UI")] 
	[SerializeField] private GameObject dialogueUI;
	[SerializeField] private Transform bossSpeechBubble;
	[SerializeField] private Vector3 offset;
	[SerializeField] private TextMeshProUGUI bossText;
	[SerializeField] private GameObject youmuSpeechBubble;
	[SerializeField] private TextMeshProUGUI youmuText;
	[SerializeField] private GameObject reisenSpeechBubble; //have to change the dialogue for this but it's probably fine
	[SerializeField] private TextMeshProUGUI reisenText;
	[Header("Animation")]
	[SerializeField] private Animator reisenAnimator;
	[SerializeField] private Animator youmuAnimator;
	[SerializeField] private string switchToDialogueTrigger;
	[SerializeField] private string switchToIdleTrigger;
	[SerializeField] private string changeDialogueTrigger;
	[SerializeField] private string talkTrigger;
	
	
	public void StartDialogue(DialogueScript newDialogue)
	{
		dialogueUI.SetActive(true);
		dialogueActive = true;
		currentText = 0;
		scriptToShow = newDialogue;
		DialogueScript.Dialogue currentDialogue = scriptToShow.dialogueList[currentText];
		bossSpeechBubble.transform.position = WaveManager.instance.bossInstance.transform.position + offset;
		SetDialogue(currentDialogue);
		reisenAnimator.SetTrigger(switchToDialogueTrigger);
		youmuAnimator.SetTrigger(switchToDialogueTrigger);
		//GameManager.instance.SetPause(true);
	}

	public void ContinueDialogue()
	{
		currentText++;
		if (currentText >= scriptToShow.dialogueList.Length)
		{
			EndDialogue();
			return;
		}
		DialogueScript.Dialogue currentDialogue = scriptToShow.dialogueList[currentText];
		SetDialogue(currentDialogue);
	}

	public void EndDialogue()
	{
		dialogueActive = false;
		dialogueUI.SetActive(false);
		WaveManager.instance.player.isStalled = false;
		WaveManager.instance.player.invulnerable = false;
		WaveManager.instance.bossInstance.isStalled = false;
		//GameManager.instance.SetPause(false);
		reisenAnimator.SetTrigger(switchToIdleTrigger);
		youmuAnimator.SetTrigger(switchToIdleTrigger);
	}

	private void SetDialogue(DialogueScript.Dialogue textToShow)
	{
		reisenSpeechBubble.SetActive(false);
		youmuSpeechBubble.SetActive(false);
		bossSpeechBubble.gameObject.SetActive(false);
		switch (textToShow.character.thisCharacter) //everyone will hate this code but that's alright
		{
			case DialogueCharacter.Character.Reisen:
				reisenSpeechBubble.SetActive(true);
				reisenText.text = textToShow.text;
				youmuAnimator.SetTrigger(changeDialogueTrigger);
				reisenAnimator.SetTrigger(talkTrigger);
				break;
			case DialogueCharacter.Character.Youmu:
				youmuSpeechBubble.SetActive(true);
				youmuText.text = textToShow.text;
				youmuAnimator.SetTrigger(talkTrigger);
				reisenAnimator.SetTrigger(changeDialogueTrigger);
				break;
			case DialogueCharacter.Character.Enemy:
				bossSpeechBubble.gameObject.SetActive(true);
				bossText.text = textToShow.text;
				reisenAnimator.SetTrigger(changeDialogueTrigger);
				youmuAnimator.SetTrigger(changeDialogueTrigger);
				break;
		}
	}

	private void Update()
	{
		if (dialogueActive)
		{
			if (Input.GetMouseButtonDown(0))
			{
				ContinueDialogue();
			}
		}
	}
}