﻿using OnlineMaps;
using OnlineMaps.Webservices;
using UnityEngine;

namespace HutongGames.PlayMaker.Actions
{
    [ActionCategory(OnlineMapsCategories.GOOGLE)]
    [Tooltip("Find location by address or coordinates.")]
    public class FindLocation : FsmStateAction
    {
        [Tooltip("Location title.")]
        public FsmString address;

        [Tooltip("Location coordinates.")]
        public FsmVector2 coordinates;

        [Tooltip("Set map position to first result coordinates.")]
        public FsmBool moveToFirstResult = true;

        [Tooltip("On request complete event.")]
        public FsmEvent OnComplete;

        [Tooltip("Response as string.")]
        [UIHint(UIHint.Variable)]
        public FsmString storeResponseString;

        [Tooltip("Response as object.")]
        [UIHint(UIHint.Variable)]
        public FsmObject storeResponseObject;

        [Tooltip("Count of locations.")]
        [UIHint(UIHint.Variable)]
        public FsmInt storeResponseLocationCount;

        [Tooltip("First response coordinates.")]
        [UIHint(UIHint.Variable)]
        public FsmVector2 storeResponseCoordinates;

        public override void Reset()
        {
            address = new FsmString { UseVariable = true };
            coordinates = new FsmVector2{ UseVariable = true };
            moveToFirstResult = true;
            storeResponseString = null;
            storeResponseObject = null;
            storeResponseLocationCount = null;
            storeResponseCoordinates = null;
            OnComplete = null;
        }

        public override void OnEnter()
        {
            DoEnter();
            Finish();
        }

        private void DoEnter()
        {
            if (!Map.instance)
            {
                Debug.LogError("Online Maps not found.");
                return;
            }

            GoogleGeocodingRequestBase r = null;
            if (!address.IsNone) r = new GoogleGeocodingRequest(address.Value);
            else if (!coordinates.IsNone) r = new GoogleReverseGeocodingRequest(coordinates.Value);
            
            if (r == null) return;

            r.HandleComplete(OnRequestComplete).Send();
        }

        private void OnRequestComplete(string response)
        {
            storeResponseString.Value = response;

            FindLocationResponseWrapper wrapper = new FindLocationResponseWrapper(GoogleGeocodingResult.Parse(response));
            storeResponseObject.Value = wrapper;
            
            storeResponseLocationCount.Value = wrapper.results != null ? wrapper.results.Length : 0;
            if (storeResponseLocationCount.Value > 0)
            {
                GeoPoint location = wrapper.results[0].geometry_location;
                storeResponseCoordinates.Value = location;
                if (moveToFirstResult.Value) Map.instance.location = location;
            }

            if (OnComplete != null) Fsm.Event(OnComplete);
        }
    }
}