using UnityEngine;

public class NPCDialogue : MonoBehaviour
{
    public string npcId = "VillageElder";
    public DialogueData dialogueData;
    public float interactionRange = 3f;
    public KeyCode interactionKey = KeyCode.E;

    private Transform player;
    private bool promptVisible;

    private void Start()
    {
        GameObject playerObject = GameObject.FindGameObjectWithTag("Player");
        if (playerObject != null)
        {
            player = playerObject.transform;
        }
    }

    private void Update()
    {
        if (dialogueData == null)
        {
            return;
        }

        if (player == null)
        {
            GameObject playerObject = GameObject.FindGameObjectWithTag("Player");
            player = playerObject != null ? playerObject.transform : null;
        }

        bool inRange = player != null && Vector3.Distance(player.position, transform.position) <= interactionRange;
        bool dialogueOpen = DialogueUI.Instance != null && DialogueUI.Instance.IsOpen;

        if (!inRange || dialogueOpen)
        {
            HidePrompt();
            return;
        }

        ShowPrompt();

        if (Input.GetKeyDown(interactionKey) && DialogueUI.Instance != null)
        {
            HidePrompt();
            QuestManager.Instance?.OnNpcTalked(npcId);
            DialogueUI.Instance.Open(this, dialogueData);
        }
    }

    private void OnDisable()
    {
        HidePrompt();
    }

    private void ShowPrompt()
    {
        if (promptVisible)
        {
            return;
        }

        promptVisible = true;
        string npcName = dialogueData != null ? dialogueData.npcName : "NPC";
        InteractionPromptUI.Instance?.Show($"E  Поговорить: {npcName}");
    }

    private void HidePrompt()
    {
        if (!promptVisible)
        {
            return;
        }

        promptVisible = false;
        InteractionPromptUI.Instance?.Hide();
    }
}