using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

namespace ARLocation.UI
{

    public class LocationProviderInfo : MonoBehaviour
    {
        private List<Text> texts = new List<Text>();
        private ARLocationProvider locationProvider;
        private LoadingBar accuracyBar;
        private Transform mainCameraTransform;

        // Use this for initialization
        void Start()
        {
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Provider").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Latitude").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Longitude").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Altitude").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Time").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas/Status").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas Right/DistanceWalked").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas Right/CameraPosition").GetComponent<Text>());
            texts.Add(GameObject.Find(gameObject.name + "/Panel/Canvas Right/MagneticSensor").GetComponent<Text>());

            locationProvider = ARLocationProvider.Instance;

            accuracyBar = GameObject.Find(gameObject.name + "/Panel/Canvas/LoadingBar").GetComponent<LoadingBar>();

            mainCameraTransform = ARLocationManager.Instance.MainCamera.transform;
        }

        // Update is called once per frame
        void Update()
        {
            texts[0].text = "Provider: " + locationProvider.Provider.Name;
            texts[1].text = "Latitude: " + locationProvider.CurrentLocation.latitude;
            texts[2].text = "Longitude: " + locationProvider.CurrentLocation.longitude;
            texts[3].text = "Altitude: " + locationProvider.CurrentLocation.altitude;

            DateTime epochStart = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            long currentEpochTime = (long)((DateTime.UtcNow - epochStart).TotalSeconds * 1000.0);
            texts[4].text = "Time Since Last (ms): " + (currentEpochTime - locationProvider.CurrentLocation.timestamp);

            texts[5].text = "Status: " + locationProvider.Provider.GetStatusString();
            texts[6].text = "Distance Walked: " + locationProvider.Provider.DistanceFromStartPoint;
            texts[7].text = "Camera Pos: " + mainCameraTransform.position;
            texts[8].text = "MagneticSensor: " + locationProvider.Provider.IsCompassEnabled;

            var accuracy = locationProvider.CurrentLocation.accuracy;

            accuracyBar.FillPercentage = Mathf.Min(1, (float)accuracy / 25.0f);
            accuracyBar.Text = "" + (float)locationProvider.CurrentLocation.accuracy;
        }
    }
}