using System.Linq;

namespace PkmnLib.Plugin.Gen7.Scripts.Pokemon;

[Script(ScriptCategory.Pokemon, "ingrain")]
public class IngrainEffect : Script
{
    private readonly IPokemon _owner;

    public IngrainEffect(IPokemon owner)
    {
        _owner = owner;
    }

    /// <inheritdoc />
    public override void PreventSelfSwitch(ISwitchChoice choice, ref bool prevent) => prevent = true;

    /// <inheritdoc />
    public override void PreventSelfRunAway(IFleeChoice choice, ref bool prevent) => prevent = true;

    /// <inheritdoc />
    public override void OnEndTurn(IBattle battle)
    {
        var heal = _owner.BoostedStats.Hp / 16;
        _owner.Heal(heal);
    }

    /// <inheritdoc />
    public override void FailIncomingMove(IExecutingMove move, IPokemon target, ref bool fail)
    {
        if (move.UseMove.Name == "roar" || move.UseMove.Name == "whirlwind")
        {
            fail = true;
        }
    }

    /// <inheritdoc />
    public override void ChangeEffectiveness(IExecutingMove move, IPokemon target, byte hit, ref float effectiveness)
    {
        var battleData = target.BattleData;
        if (battleData == null)
            return;

        if (move.UseMove.MoveType.Name != "ground")
            return;
        var targetTypes = target.Types;
        var typeLibrary = battleData.Battle.Library.StaticLibrary.Types;
        effectiveness =
            // Get the effectiveness of the move against each target type
            targetTypes.Select(x => typeLibrary.GetSingleEffectiveness(move.UseMove.MoveType, x))
                // Ignore all types that are immune to ground moves
                .Where(x => x > 0)
                // Multiply all effectiveness values together
                .Aggregate(1.0f, (current, x) => current * x);
    }
}