using System.Collections.Generic;
using UnityEditor;
using UnityEngine.UIElements;

namespace PVSkill
{
    public class SkillBuffElement
    {
        private VisualElement root;
        private SkillBuffConfig curSkillBuffConfig;
        
        // elem
        private Label buffDescLbl;
        private Label triggerEventLbl;
        private Label objectTypeLbl;
        private Label scopeTypeLbl;
        private Label gainLbl;
        private Label disperseLbl;
        private Label continuedTypeLbl;
        
        private ListView effectListView;
        private SkillEffectElement effectElement;
        
        public SkillBuffElement(VisualElement root)
        {
            var visualTree = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>("Assets/Editor/SkillEditor/SkillBuffElement.uxml");
            visualTree.CloneTree(root);

            this.root = root;
            this.buffDescLbl = root.Q<Label>("BuffDescLbl");
            this.triggerEventLbl = root.Q<Label>("TriggerEventLbl");
            this.objectTypeLbl = root.Q<Label>("ObjectTypeLbl");
            this.scopeTypeLbl = root.Q<Label>("ScopeTypeLbl");
            this.gainLbl = root.Q<Label>("GainLbl");
            this.disperseLbl = root.Q<Label>("DisperseLbl");
            this.continuedTypeLbl = root.Q<Label>("ContinuedTypeLbl");
            
            this.effectListView = root.Q<ListView>("EffectListView");
            this.effectListView.bindItem = this.BindEffectListItem;
            this.effectListView.makeItem = this.MakeEffectListItem;
            this.effectListView.onSelectionChange += this.OnEffectItemChosen;

            var effectInfo = root.Q<VisualElement>("EffectInfo");
            this.effectElement = new SkillEffectElement(effectInfo);
        }
        
        private void RefreshEffectItems(int[] effects)
        {
            if (effects == null || effects[0] == 0)
            {
                this.effectListView.itemsSource = new List<int>();
                this.effectListView.ClearSelection();
                this.effectElement.Hide();
            }
            else
            {
                this.effectListView.itemsSource = effects;
                this.effectListView.selectedIndex = 0;
            }
            
            this.effectListView.RefreshItems();
        }
        
        private void BindEffectListItem(VisualElement ve, int index)
        {
            Label label = ve as Label;
            var effectId = this.curSkillBuffConfig.LinkEffect[index];
            var config = SkillEffectConfigCategory.Instance.Get(effectId);
            label.text = SkillEditorDefines.EffectTypeMap[config.EffectConfig];
        }

        private VisualElement MakeEffectListItem()
        {
            var label = new Label();
            // label.AddToClassList("FatherSkillLabel");
            return label;
        }

        private void OnEffectItemChosen(IEnumerable<object> obj)
        {
            foreach (object o in obj)
            {
                int effectId = (int) o;
                var config = SkillEffectConfigCategory.Instance.Get(effectId);
                this.effectElement.SetDataByConfig(config);
            }
        }
        
        public void SetObjectType(int type)
        {
            this.objectTypeLbl.text = SkillEditorDefines.ObjectTypeMap[type];
        }

        public void SetTriggerEventType(int type)
        {
            this.triggerEventLbl.text = SkillEditorDefines.TriggerEventMap[type];
        }

        public void SetScopeType(int type)
        {
            this.scopeTypeLbl.text = SkillEditorDefines.ScopeTypeMap[type];
        }

        public void SetGain(int gain)
        {
            this.gainLbl.text = SkillEditorDefines.GainMap[gain];
        }

        public void SetDisperse(int disperse)
        {
            this.disperseLbl.text = SkillEditorDefines.CanOrNot[disperse];
        }

        public void SetContinuedType(int type)
        {
            this.continuedTypeLbl.text = SkillEditorDefines.ContinuedTypeMap[type];
        }
        
        public void SetDesc(string desc)
        {
            this.buffDescLbl.text = desc;
        }

        public void Hide()
        {
            this.root.style.display = DisplayStyle.None;
        }
        
        public void SetDataByConfig(SkillBuffConfig config)
        {
            this.curSkillBuffConfig = config;
            this.root.style.display = DisplayStyle.Flex;
            this.SetDesc(config.Describe);
            this.SetObjectType(config.ObjectType);
            this.SetScopeType(config.ScopeType);
            this.SetTriggerEventType(config.TriggerEvent);
            this.SetGain(config.Gain);
            this.SetDisperse(config.Disperse);
            this.SetContinuedType(config.ContinuedType);

            var effects = config.LinkEffect;
            RefreshEffectItems(effects);
        }
    }
}