using Continentis.MainGame;
using Continentis.MainGame.Character;
using SLSUtilities.General;

namespace Continentis.Mods.Basic.Buffs
{
    /// <summary>
    /// 下次行动体力增减：在下次行动开始时根据层数增减体力，之后移除。
    /// </summary>
    public class NextActionStaminaModification : CharacterCombatBuffBase, IBuffExtension_IntegerRange
    {
        public NextActionStaminaModification(int stack)
        {
            Initialize(BuffType.Positive, BuffDispelLevel.Strong);

            this.contentSubmodule = new ContentSubmodule(this)
                .AddParameterGetter("Stack", () => unitedStackSubmodule.stackAmount.ToString());

            this.iconSubmodule = new IconSubmodule(this).SetTextFunctions("Stack");
            this.unitedStackSubmodule = new UnitedStackSubmodule(this, true, -1, stack, true);

            this.eventSubmodule = new EventSubmodule(this);
            this.eventSubmodule.onActionStart.Add("StaminaModification", new PrioritizedAction(OnActionStart));
            
            (this as IBuffExtension_IntegerRange).Initialize(stack);
        }

        private void OnActionStart()
        {
            int modification = unitedStackSubmodule.stackAmount;
            attachedCharacter.ModifyStamina(modification);

            Remove();
        }

        public override bool OnBuffApply(out CharacterCombatBuffBase existingBuff)
        {
            MainGameManager.Instance.basePrefabs.GenerateInfoText(contentSubmodule.displayName, attachedCharacter.characterView);

            // 若已存在则叠加层数（体力削减量叠加）
            if (FindExistingSameBuff(out existingBuff))
            {
                existingBuff.unitedStackSubmodule.AddStack(this.unitedStackSubmodule.stackAmount);
                return false;
            }
            
            return true;
        }
    }
}