using System.Collections;
using System.Linq;
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using KairoEngine.Core;

namespace KairoEngine.Core.GameActions
{
    public enum GameActionStringType
    {
        String,
        Variable
    }

    [System.Serializable, HideReferenceObjectPicker]
    public class TriggerGenericEventGameAction : GameActionBase
    {
        public override string name 
        { 
            get
            {
                return "Trigger Generic Event";
            }
        }

        public override GameActionsController controller { 
            get => _controller; 
            set 
            {
                _controller = value;
                typeName = "TriggerGenericEventGameAction";
                className =  this.GetType().AssemblyQualifiedName;
                GetCompatibleVariablenames();
            }
        }
        public override string GetTypeName() => "TriggerGenericEventGameAction";
        public override string GetActionName() => "Core/Trigger Generic Event";

        [FoldoutGroup("@name")] 
        public GameActionStringType actionType = GameActionStringType.String;
        
        [FoldoutGroup("@name"), ShowIf("@actionType == GameActionStringType.String")]
        public string eventName = "EventName";

        [FoldoutGroup("@name"), ShowIf("@actionType == GameActionStringType.Variable")]
        [ValueDropdown("possibleVariables", IsUniqueList = false)]
        public string eventNameVariable;

        private IEnumerable possibleVariables = new ValueDropdownList<string>();

        public TriggerGenericEventGameAction(GameActionsController controller) : base(controller)
        {
            this.controller = controller;
            className =  this.GetType().AssemblyQualifiedName;
        }

        public override void Start()
        {
            string targetEvent = "";
            if(actionType == GameActionStringType.String) targetEvent = eventName;
            else if(actionType == GameActionStringType.Variable) targetEvent = GetVariable(eventNameVariable);
            GenericEvents.Trigger(targetEvent);
            _done = true;
            _started = true;
        }

        public override void Update() { }

        public override void Restart()
        {
            _done = false;
            _started = false;
        }

        private void GetCompatibleVariablenames()
        {
            if(_controller == null) return;
            if(_controller.context == null) return;
            possibleVariables = _controller.context.variables
                //.Where(x => x.data is GameActionContextString)
                .Select(x => new ValueDropdownItem(x.name, x.name)); 
        }

        public static TriggerGenericEventGameAction JSONToTriggerGenericEventGameAction(string data)
        {
            return JsonUtility.FromJson<TriggerGenericEventGameAction>(data);
        }

        private TriggerGenericEventGameAction Duplicate(GameActionsController controller = null)
        {
            TriggerGenericEventGameAction action = new TriggerGenericEventGameAction(controller == null ? this.controller : controller);
            action.controller = controller;
            action.actionType = actionType;
            action.eventName = eventName;
            action.eventNameVariable = eventNameVariable;
            return action;
        }

        private string GetVariable(string title)
        {
            if(controller == null) return "";
            if(controller.context == null) return "";
            for (int i = 0; i < controller.context.variables.Count; i++)
            {
                if(controller.context.variables[i].name == title)
                {
                    string value = controller.context.variables[i].GetValue<string>("");
                    if(value != "") return value;
                }
            }
            return "";
        }

    }
}