/// <summary>
/// Runs a simple check to verify connectivity to remote API
/// </summary>
/// <returns></returns>
private async Task checkConnection()
{
bool connected = false;
lblStatusValue.Text = "Checking connection...";
await Task.Run(async() => {
System.Threading.Thread.Sleep(1500);
using (IUnitOfWorkDataProvider p = AppStorage.GetUnitOfWorkDataProvider())
{
//if we have credentials test connection
connected = ((await remoteDataRepository.TestConnection()) != string.Empty);
}
});
this.Invoke((MethodInvoker) delegate
{
if (connected)
{
lblStatusValue.Text = "Connected";
lblStatusValue.ForeColor = Color.Green;
}
else
{
lblStatusValue.Text = "Not Connected";
lblStatusValue.ForeColor = Color.Red;
}
});
}
/// <summary>
/// Checks for a connection and initializes UI for connections
/// </summary>
/// <returns></returns>
public async Task LoadDataAsync()
{
if (!_loading || _firstRun)
{
_loading = true;
lblPermissions.Visible = false;
btnConnections.Visible = false;
using (IUnitOfWorkDataProvider dp = AppStorage.GetUnitOfWorkDataProvider())
{
_currentUserId = dp.Settings.GetAsString(SettingKeyType.LastUserID);
}
remoteDataRepository.Initialize(AppConfig.JohnDeereApiUrl, AppConfig.JohnDeereWellKnownUrl, RemoteProviderType.OAuthProvider,
DataHelper.SaveNewToken, DataHelper.IsTokenExpired,
AppConfig.AppId, AppConfig.AppSecret, string.Empty, string.Empty);
btnExit.Visible = _showExitButton;
if (_firstRun)
{
pnlConnectionSettingsConnected.Visible = false;
pnlConnectionSettingsLinkAccount.Visible = false;
pnlConnectionSettingsVerifyCode.Visible = true;
pnlNoNetwork.Visible = false;
return;
}
pnlConnectionSettingsConnected.Visible = false;
pnlConnectionSettingsLinkAccount.Visible = false;
pnlConnectionSettingsVerifyCode.Visible = false;
pnlNoNetwork.Visible = false;
pnlLoading.Visible = true;
lblLoadingMessage.Text = "Checking for connection";
bool connected = false;
bool noNetwork = false;
await Task.Run(async() =>
{
System.Threading.Thread.Sleep(1000);
//check network state
if (!NetworkHelper.HasInternetConnection("https://google.com"))
{
connected = false;
noNetwork = true;
}
else
{
//we have a network connection so verify we can connect to John Deere
using (IUnitOfWorkDataProvider dp = AppStorage.GetUnitOfWorkDataProvider())
{
var accessToken = dp.Settings.GetAsString(SettingKeyType.JDAccessToken);
var refreshToken = dp.Settings.GetAsString(SettingKeyType.JDRefreshToken);
var deereCredentialDate = dp.Settings.GetLastJohnDeereLoginDateTime();
var accessTokenExpires = dp.Settings.GetAccessTokenExpiresUTC();
//if we have an access token and refresh token and we last logged in within the last 360 days
//we should have at a minimum a valid refresh token
if (!string.IsNullOrEmpty(accessToken) && !string.IsNullOrEmpty(refreshToken) && (deereCredentialDate.HasValue && deereCredentialDate.Value.AddDays(360) >= DateTime.UtcNow))
{
try
{
remoteDataRepository.SetAuthData(accessToken, refreshToken);
_currentUserId = await remoteDataRepository.TestConnection();
if (_currentUserId != string.Empty)
{
connected = true;
}
}
catch (Exception exc)
{
Logger.Log(exc);
connected = false;
}
}
}
}
});
pnlLoading.Visible = false;
if (noNetwork == false)
{
pnlConnectionSettingsConnected.Visible = connected;
pnlConnectionSettingsLinkAccount.Visible = !connected;
pnlConnectionSettingsVerifyCode.Visible = false;
pnlNoNetwork.Visible = false;
if (connected)
{
await showPermissionButtonIfNeeded();
}
}
else
{
pnlConnectionSettingsConnected.Visible = false;
pnlConnectionSettingsLinkAccount.Visible = false;
pnlConnectionSettingsVerifyCode.Visible = false;
pnlNoNetwork.Visible = true;
}
_loading = false;
}
}