using System.Collections.Generic;
using Continentis.MainGame;
using Continentis.MainGame.Character;
using SLSUtilities.General;
using UnityEngine;

namespace Continentis.Mods.Basic.Buffs
{
    /// <summary>
    /// 被挑衅：标记该角色正在被一个或多个角色挑衅。
    /// 具有 Provoked 状态，目标选择系统会检测该状态并限制该角色只能攻击挑衅者。
    /// </summary>
    public class Provoked : CharacterCombatBuffBase
    {
        public List<Provoking> provokingSources;

        public Provoked()
        {
            Initialize(BuffType.Negative, BuffDispelLevel.DeathOnly, 100);

            this.provokingSources = new List<Provoking>();

            this.statusSubmodule = new StatusSubmodule(this, StatusType.Provoked);

            this.contentSubmodule = new ContentSubmodule(this)
                .AddParameterGetter("Provoker", GetProvokerNames);

            this.iconSubmodule = new IconSubmodule(this).SetTextFunctions();
        }

        /// <summary>获取所有挑衅者角色（去重）。</summary>
        public List<CharacterBase> GetProvokers()
        {
            List<CharacterBase> provokers = new List<CharacterBase>();
            foreach (Provoking provoking in provokingSources)
            {
                if (!provokers.Contains(provoking.attachedCharacter))
                {
                    provokers.Add(provoking.attachedCharacter);
                }
            }

            return provokers;
        }

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

            if (FindExistingSameBuff(out existingBuff))
            {
                return false;
            }

            existingBuff = null;
            return true;
        }

        private string GetProvokerNames()
        {
            List<string> names = new List<string>();
            foreach (Provoking provoker in provokingSources)
            {
                names.Add(provoker.attachedCharacter.data.displayName);
            }

            return names.Count == 1 ? names[0] : string.Join(", ", names);
        }
    }
}