using System.Collections.Generic;
using UnityEngine;

public class UltimateBotAI : IBotAI
{
    private List<Vector2Int> knownDeckCoords = new List<Vector2Int>();
    private bool initialized = false;

    public Vector2Int MakeMove(GamePole pole)
    {
        if (!initialized)
        {
            InitializeCheatKnowledge(pole);
            initialized = true;
        }

        int totalEnemyShips = 10;
        int remainingEnemyShips = pole.gameManager.enemyShips;
        int shipsLost = totalEnemyShips - remainingEnemyShips;

        float missChance = Mathf.Clamp01(0.9f - shipsLost * 0.1f);
        bool shouldMiss = Random.value < missChance;

        if (shouldMiss)
        {
            List<(int x, int y)> emptyShots = pole.GetAvailableShots();
            if (emptyShots.Count > 0)
            {
                var missShot = emptyShots[Random.Range(0, emptyShots.Count)];
                return new Vector2Int(missShot.x, missShot.y);
            }
        }
        else
        {
            foreach (Vector2Int coord in knownDeckCoords)
            {
                if (pole.PoleShot[coord.x, coord.y] == 0)
                {
                    return coord;
                }
            }
        }

        return new Vector2Int(-1, -1); // Ходов нет
    }

    private void InitializeCheatKnowledge(GamePole pole)
    {
        knownDeckCoords.Clear();
        foreach (var shipObj in pole.GetPlacedShips())
        {
            var ship = shipObj.GetComponent<Ship>();
            if (ship == null) continue;

            foreach (Vector2Int coord in ship.deckCoords)
            {
                knownDeckCoords.Add(coord);
            }
        }
    }
}