using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using Sirenix.Serialization;

namespace KairoEngine.Stats
{
    [System.Serializable]
    public class StatsController : ISerializationCallbackReceiver
    {
        [OnValueChanged("Setup"), HideIf("@statGroup != null")]
        public StatGroup statGroup;

        [OnInspectorInit("Initialize")]
        [ListDrawerSettings(HideAddButton = true, HideRemoveButton = true, DraggableItems = false, Expanded = true, ShowPaging = false, ShowItemCount = false)]
        public List<Stat> stats;

        [InlineProperty, HideLabel, ShowIf("@statusEffects.statusEffects.Count > 0")]
        public StatusEffectsController statusEffects;

        public StatGroup StatGroup 
        { 
            get => statGroup; 
            set 
            {
                statGroup = value;
                if(statGroup != null) Setup();
            } 
        }

        public void Setup()
        {
            if(StatGroup == null) return;
            stats = new List<Stat>();
            foreach (var statTemplate in StatGroup.statTemplates)
            {
                Stat stat = new Stat(statTemplate, this);
                stats.Add(stat);
            }
            for (int a = 0; a < 4; a++)
            {
                for (int i = 0; i < stats.Count; i++) stats[i].Initialize();
            }
            UpdateStats();
        }

        public void Initialize()
        {
            if(statGroup == null) return;
            if(stats != null)
            {
                if(stats.Count == 0)
                { 
                    Setup();
                    return;
                }
            }
            for (int i = 0; i < StatGroup.statTemplates.Count; i++)
            {
                bool found = false;
                for (int a = 0; a < stats.Count; a++)
                {
                    if(stats[a].title == StatGroup.statTemplates[i].title) found = true;
                }
                if(found == false) 
                {
                    Stat stat = new Stat(StatGroup.statTemplates[i], this);
                    stats.Add(stat);
                }
            }
            List<Stat> newStats = new List<Stat>();
            foreach(var stat in stats) newStats.Add(Stat.Deserialize(stat.Serialize(), this));
            stats = newStats;
            if(statusEffects != null) statusEffects.SetStatsController(this);
            UpdateStats();
        }

        public void UpdateStats()
        {
            foreach (var stat in stats) stat.Update();
            foreach (var stat in stats) stat.Update();
        }

        public int GetStatValue(string title)
        {
            int result = 0;
            Stat stat = GetStat(title);
            if(stat != null) result = stat.value;
            return result;
        }

        public Stat GetStat(string title)
        {
            for (int i = 0; i < stats.Count; i++)
            {
                if(stats[i].title == title) return stats[i];
            }
            return null;
        }

        public StatTemplate GetStatTemplate(string title)
        {
            if(StatGroup == null) return null;
            for (int i = 0; i < StatGroup.statTemplates.Count; i++)
            {
                if(StatGroup.statTemplates[i].title == title) return StatGroup.statTemplates[i];
            }
            return null;
        }

        public void OnBeforeSerialize()
        {
            
        }

        public void OnAfterDeserialize()
        {
            
            for (int i = 0; i < stats.Count; i++)
            {
                stats[i].controller = this;
                if(stats[i].modifiers != null) stats[i].modifiers.stat = stats[i];
            }
            if(statusEffects != null) statusEffects.controller = this;
        }
    }
}