using System.Collections.Generic;
using System.Linq;

namespace Babushka.scripts.CSharp.Common.Fight;

public static class FightUtils
{
    public static int GetEnteredAmount(this FightWorld.EnemyGroup self)
    {
        return self.enemies.Count(e => e.IsAlive() && e.entered);
    }

    public static bool TryGetFirstUnenteredFighter(this FightWorld.EnemyGroup self, out FightWorld.Fighter fighter)
    {
        foreach (var f in self.enemies.Where(e=>!e.entered && e.IsAlive()))
        {
            fighter = f;
            return true;
        }

        fighter = null!;
        return false;
    }

    public static bool IsAlive(this FightWorld.Fighter self)
    {
        return self.GetHealth() >= 0;
    }
    
    public static bool IsDead(this FightWorld.Fighter self)
    {
        return !self.IsAlive();
    }
    
    public static int GetHealth(this FightWorld.Fighter self)
    {
        return self.health ?? self.maxHealth;
    }

    public static bool AreAllDead(this FightWorld.EnemyGroup self)
    {
        return self.enemies.All(e => e.IsDead());
    }
    
}