using UnityEngine;
using System.Collections;

public class FrontDoorEvent : MonoBehaviour, IInteractable
{
    [Header("Door Settings")]
    public float openAngle = 90f;
    public float smoothSpeed = 2f;
    
    [Header("Audio Clips")]
    public AudioSource doorSource;
    public AudioClip doorbellClip;
    public AudioClip voiceClip;         // <--- NEW: The voice line
    [Tooltip("IMPORTANT: This must be a SINGLE knock sound, not a loop!")]
    public AudioClip singleKnockClip; 
    public AudioClip doorOpenSound;
    // windSound is removed

    [Header("Timeline Settings")]
    public float timeBeforeVoice = 3f;  // Ring for 3 seconds
    public float timeAfterVoice = 3f;   // Ring for 3 seconds AFTER voice, then knock
    
    [Header("Knocking Settings")]
    [Range(0.1f, 1f)] public float heavyPitch = 0.8f; 
    public float totalKnockingDuration = 8f; 
    public float startDelay = 1.0f; 
    public float endDelay = 0.1f;   
    
    // State
    private bool isOpen = false;
    private bool eventActive = false;
    private Quaternion initialRotation;
    private Quaternion targetRotation;

    void Start()
    {
        initialRotation = transform.localRotation;
        targetRotation = initialRotation;
        if(GameManager.Instance != null) GameManager.Instance.frontDoor = this;
    }

    void Update()
    {
        transform.localRotation = Quaternion.Slerp(transform.localRotation, targetRotation, Time.deltaTime * smoothSpeed);
    }

    public void TriggerEvent()
    {
        if(eventActive || isOpen) return;
        eventActive = true;
        StartCoroutine(TheHauntingSequence());
    }

    IEnumerator TheHauntingSequence()
    {
        // --- PHASE 1: INITIAL RINGING ---
        doorSource.pitch = 1f;
        doorSource.volume = 0.5f;
        doorSource.clip = doorbellClip;
        doorSource.loop = true; 
        doorSource.Play();

        // Wait...
        float timer = 0f;
        while (timer < timeBeforeVoice && !isOpen)
        {
            timer += Time.deltaTime;
            yield return null;
        }
        if (isOpen) yield break;

        // --- PHASE 2: THE VOICE ---
        if (voiceClip != null)
        {
            doorSource.Stop(); // Cut the bell
            doorSource.loop = false;
            
            // Play Voice
            doorSource.PlayOneShot(voiceClip);
            
            // Wait for the exact length of the voice clip
            float voiceTimer = 0f;
            while (voiceTimer < voiceClip.length && !isOpen)
            {
                voiceTimer += Time.deltaTime;
                yield return null;
            }
        }
        if (isOpen) yield break;

        // --- PHASE 3: RESUME RINGING ---
        doorSource.clip = doorbellClip;
        doorSource.loop = true;
        doorSource.Play();

        timer = 0f;
        while (timer < timeAfterVoice && !isOpen)
        {
            timer += Time.deltaTime;
            yield return null;
        }
        if (isOpen) yield break;

        // --- PHASE 4: AGGRESSIVE KNOCKING (The Drummer Method) ---
        doorSource.Stop(); 
        doorSource.loop = false; 
        doorSource.pitch = heavyPitch; // Drop pitch for bass

        float knockTimer = 0f;
        
        while (knockTimer < totalKnockingDuration && !isOpen)
        {
            float progress = knockTimer / totalKnockingDuration;

            // Volume Up
            float currentVol = Mathf.Lerp(0.4f, 1f, progress);
            doorSource.PlayOneShot(singleKnockClip, currentVol);

            // Speed Up (Reduce Delay)
            float currentDelay = Mathf.Lerp(startDelay, endDelay, progress);

            // Wait for delay
            float subTimer = 0f;
            while(subTimer < currentDelay)
            {
                subTimer += Time.deltaTime;
                knockTimer += Time.deltaTime;
                if(isOpen) yield break;
                yield return null;
            }
        }

        // --- PHASE 5: SILENCE ---
        Debug.Log("Knocking finished. Dead silence.");
    }

    public void Interact()
    {
        if (isOpen) return; 

        // Player Opened the Door!
        isOpen = true;
        eventActive = false; 
        
        // Open Visuals
        targetRotation = initialRotation * Quaternion.Euler(0, openAngle, 0);

        // Audio Reset
        doorSource.Stop(); 
        doorSource.pitch = 1f; 
        doorSource.volume = 1f;
        
        // Just play the open sound, NO wind following it
        doorSource.PlayOneShot(doorOpenSound);
        
        // Trigger Nightmare Mode
        if(GameManager.Instance != null) GameManager.Instance.TriggerNightmareMode();
    }
    
    public string GetDescription()
    {
        if (eventActive) return "Press [E] to <color=red>Check Noise</color>";
        return isOpen ? "" : "Press [E] to Open";
    }
}