using UnityEngine;
using UnityEngine.UI;

public class GameManager : MonoBehaviour
{
    public CaptureZone[] zones;
    public TerritoryUI territoryUI;
    public GameObject winPanel;
    public Text winText;
    public int scoreLimit = 100;

    private bool gameOver;

    private void Start()
    {
        Time.timeScale = 1f;

        if (territoryUI != null)
        {
            territoryUI.HideGameOver();
        }

        SubscribeToZones();
    }

    private void Update()
    {
        if (gameOver)
        {
            return;
        }

        if (territoryUI != null)
        {
            territoryUI.UpdateZoneStatus(zones);
        }

        CheckVictoryConditions();
    }

    private void SubscribeToZones()
    {
        if (zones == null)
        {
            return;
        }

        for (int i = 0; i < zones.Length; i++)
        {
            if (zones[i] == null)
            {
                continue;
            }

            zones[i].onCapturedByPlayer += OnZoneCaptured;
            zones[i].onCapturedByEnemy += OnZoneCaptured;
        }
    }

    private void OnDestroy()
    {
        if (zones == null)
        {
            return;
        }

        for (int i = 0; i < zones.Length; i++)
        {
            if (zones[i] == null)
            {
                continue;
            }

            zones[i].onCapturedByPlayer -= OnZoneCaptured;
            zones[i].onCapturedByEnemy -= OnZoneCaptured;
        }
    }

    private void OnZoneCaptured(CaptureZone zone)
    {
        CheckVictoryConditions();
    }

    private void CheckVictoryConditions()
    {
        if (zones == null || zones.Length == 0)
        {
            return;
        }

        bool allPlayer = true;
        bool allEnemy = true;

        for (int i = 0; i < zones.Length; i++)
        {
            if (zones[i] == null)
            {
                allPlayer = false;
                allEnemy = false;
                continue;
            }

            allPlayer &= zones[i].GetOwner() == CaptureZone.Owner.Player;
            allEnemy &= zones[i].GetOwner() == CaptureZone.Owner.Enemy;
        }

        if (allPlayer)
        {
            GameOver("Победа игрока: все зоны захвачены!");
            return;
        }

        if (allEnemy)
        {
            GameOver("Победа врага: все зоны потеряны!");
            return;
        }

        if (ResourceManager.Instance != null && ResourceManager.Instance.playerScore >= scoreLimit)
        {
            GameOver("Победа игрока: достигнут лимит очков!");
        }
    }

    private void GameOver(string message)
    {
        if (gameOver)
        {
            return;
        }

        gameOver = true;

        if (territoryUI != null)
        {
            territoryUI.ShowGameOver(message);
        }
        else
        {
            if (winPanel != null)
            {
                winPanel.SetActive(true);
            }

            if (winText != null)
            {
                winText.text = message;
            }
        }

        Time.timeScale = 0f;
    }
}