using System.Collections.Generic;
using UnityEngine;

public class QuestGiver : MonoBehaviour
{

    [SerializeField] private TextAsset questFile;
    [SerializeField] private InventoryItem reward;
    [SerializeField] private InventoryItem requiredItem;
    public bool isActive = false;
    public bool isCompleted = false;

    public QuestData quest;
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Awake()
    {
        if (questFile == null)
        {
            Debug.LogError("Quest file is not assigned in the inspector.");
            return;
        }
        // Load the quest data from the TextAsset
        try
        {
            quest = JsonUtility.FromJson<QuestData>(questFile.text);
        }
        catch (System.Exception e)
        {
            Debug.LogError("Failed to parse quest data: " + e.Message);
            return;
        }
    }
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {

    }
    public QuestData GetCurrentQuest()
    {
        return quest;
    }

    public void CheckInventory(List<InventoryItem> inventory)
    {
        // Check if the required item is in the player's inventory
        if (inventory.Contains(requiredItem))
        {
            isCompleted = true; // Mark the quest as completed
            FinishQuest();
        }
        else
        {
            isCompleted = false; // Mark the quest as not completed
        }
    }
    public Dialog[] Talk()
    {
        Debug.Log("Talking to quest giver: " + quest.id);
        if (!isActive && isCompleted)
        {
            // If the quest is completed, return the repetition dialog
            return quest.repetition;
        }

        else
        {
            if (!isActive)
            {
                // Initialize the quest
                isActive = true;
                return quest.initial;
            }

            else if (isActive && isCompleted)
            {
                isActive = false; // reset the quest
                isCompleted = true;
                // take the Requireditem from the player inventory

                // If the quest is active and completed, return the success dialog
                return quest.success;
            }

            else
            {
                // If the quest is active but not completed, return the reminder dialog
                CheckInventory(GameObject.FindGameObjectsWithTag("Player")[0].GetComponent<PlayerInteraction>().GetInventoryItems());
                return quest.reminder;
            }
        }
    }
    public Dialog[] FinishQuest()
    {
        // If the quest is active and completed, return the success dialog
        isActive = false;
        isCompleted = true;
        GameObject.Find("Player").GetComponent<PlayerInteraction>().RemoveFromInventory(requiredItem);

        reward.giveReward(GameObject.Find("Player")); // Give the reward to the player
        return quest.success;
    }
}