RateUsManager.cs

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

public class RateUsManager : MonoBehaviour
{
    public UnityEvent OnRateUsPanelClosed = new UnityEvent();
    public Toggle DontAskAgainToggle;

    private bool _dontAskAgain = false;
    private bool _rated = false;
    private int _timesAsked = 0;
    private DateTime _lastTimeAsked;

    public static readonly string DontAskAgainKey = "DontAskAgain";
    public static readonly string RatedKey = "Rated";
    public static readonly string LastTimeAskedKey = "LastTimeAsked";
    public static readonly string TimesAskedKey = "TimesAsked";

    private const int AskAfterDays = 3;

    private UIElement _rateUsPanel;

    public bool Rated
    {
        get
        {
            if (ES3.KeyExists(RatedKey))
            {
                _rated = ES3.Load<bool>(RatedKey);
            }

            return _rated;
        }
    }

    public bool DontAskAgain
    {
        get
        {
            if (ES3.KeyExists(DontAskAgainKey))
            {
                Debug.Log("Reading Dont ask again value.");
                _dontAskAgain = ES3.Load<bool>(DontAskAgainKey);
            }

            return _dontAskAgain;
        }
    }

    public int TimesAsked
    {
        get
        {
            if (ES3.KeyExists(TimesAskedKey))
            {
                _timesAsked = ES3.Load<int>(TimesAskedKey);
            }

            return _timesAsked;
        }
    }

    public DateTime LastTimeAsked
    {
        get
        {
            if (ES3.KeyExists(LastTimeAskedKey))
            {
                _lastTimeAsked = ES3.Load<DateTime>(LastTimeAskedKey);
            }

            return _lastTimeAsked;
        }
    }


    private void Awake()
    {
        if (ES3.KeyExists(DontAskAgainKey))
        {
            _dontAskAgain = ES3.Load<bool>(DontAskAgainKey);
        }

        if (ES3.KeyExists(RatedKey))
        {
            _rated = ES3.Load<bool>(RatedKey);
        }

        if (ES3.KeyExists(LastTimeAskedKey))
        {
            _lastTimeAsked = ES3.Load<DateTime>(LastTimeAskedKey);
        }

        if (ES3.KeyExists(TimesAskedKey))
        {
            _timesAsked = ES3.Load<int>(TimesAskedKey);
        }

        _rateUsPanel = GetComponent<UIElement>();
    }

    // Use this for initialization
    void Start()
    {
        DontAskAgainToggle.isOn = DontAskAgain;
    }

    // Update is called once per frame
    void Update()
    {
    }

    public void ShowRateUsPanel()
    {
        var now = DateTime.Now;
        ES3.Save<DateTime>(LastTimeAskedKey, now);
        _rateUsPanel.Show(false);
    }

    public void OnClosePanel()
    {
        _rateUsPanel.Hide(false);
        if (OnRateUsPanelClosed != null)
        {
            OnRateUsPanelClosed.Invoke();
        }
    }

    public void OnDontAskAgainToggle(bool dontAskAgain)
    {
        Debug.Log("Dont ask again toggle: " + dontAskAgain);
        ES3.Save<bool>(DontAskAgainKey, dontAskAgain);
    }

    public void OnRateNowButtonClicked()
    {
//#if UNITY_EDITOR
        Application.OpenURL("https://play.google.com/store/apps/details?id=dog.Yak.CatchTheMantraMahaMantra&rdid=dog.Yak.CatchTheMantraMahaMantra");
//#else
//        Application.OpenURL("market://details?id=dog.Yak.CatchTheMantraMahaMantra/");
//#endif
        ES3.Save<bool>(RatedKey, true);
        _rateUsPanel.Hide(false);
        if (OnRateUsPanelClosed != null)
        {
            OnRateUsPanelClosed.Invoke();
        }
    }

    public bool CanShowRatePanel()
    {
        // can we be sure they rated?
//        if (Rated) return false;
        if (DontAskAgain) return false;
        if (!ES3.KeyExists(LastTimeAskedKey)) return true;

        DateTime lastTime = ES3.Load<DateTime>(LastTimeAskedKey);

        var now = DateTime.Now;
        var elapsed = now - lastTime;
        var elapsedDays = new TimeSpan(elapsed.Ticks).Days;

        return elapsedDays >= 3;
    }
}