/// <summary>
/// Load a required assets and prepare for program execution
/// </summary>
public static void Launch()
{
#region WeatherLion launch sequence
UtilityMethod.LogMessage(UtilityMethod.LogLevel.INFO, "Initiating startup...", "WeatherLionMain::Launch");
// build the required storage files
if (BuildRequiredDatabases() == 1)
{
UtilityMethod.LogMessage(UtilityMethod.LogLevel.INFO,
"All required databases constructed successfully.",
"WeatherLionMain::Launch");
}// end of if block
else
{
UtilityMethod.LogMessage(UtilityMethod.LogLevel.SEVERE,
"All required databases were not constructed successfully.",
"WeatherLionMain::Launch");
}// end of else block
// check that the required access keys are available
LionSecurityManager.Init();
// Load only the providers who have access keys assigned to them
List <string> wxOnly = LionSecurityManager.webAccessGranted;
wxOnly.Sort(); // sort the list
// GeoNames is not a weather provider so it cannot be select here
wxOnly.Remove("GeoNames");
authorizedProviders = wxOnly.ToArray();
// ensure that program has all the default assets needed for functioning properly
HealthCheck();
// load user preferences
storedPreferences = Preference.GetSavedPreferences();
string previousWeatherData = $"{DATA_DIRECTORY_PATH}{WEATHER_DATA_XML}";
connectedToInternet = UtilityMethod.HasInternetConnection();
// check for an Internet connection or previous weather data stored local
if (!connectedToInternet && !File.Exists(previousWeatherData))
{
UtilityMethod.ShowMessage("The program will not run without a working internet connection or "
+ "data that was previously stored locally" +
"\nResolve your Internet connection and relaunch the program.", null);
Application.Exit(); // terminate the program
}// end of if block
else if (connectedToInternet)
{
// obtain the current city of the connected Internet service
currentCity = UtilityMethod.GetSystemLocation();
if (currentCity != null)
{
if (currentCity.regionCode != null)
{
systemLocation = $"{currentCity.cityName}, {currentCity.regionCode}";
}// end of if block
else
{
systemLocation = $"{currentCity.cityName}, {currentCity.countryName}";
} // end of else block
} // end of if block
// if the user requires the current detected city location to be used as default
if (storedPreferences.StoredPreferences.UseSystemLocation)
{
if (systemLocation != null)
{
// use the detected city location as the default
storedPreferences.StoredPreferences.Location = systemLocation;
if (!storedPreferences.StoredPreferences.Location.Equals(systemLocation))
{
// update the preferences file
Preference.SaveProgramConfiguration("prefs", "Location", systemLocation);
// save the city to the local WorldCites database
UtilityMethod.AddCityToDatabase(
currentCity.cityName, currentCity.countryName,
currentCity.countryCode, currentCity.regionName,
currentCity.regionCode, currentCity.latitude,
currentCity.longitude);
JSONHelper.ExportToJSON(currentCity);
XMLHelper.ExportToXML(currentCity);
} // end of if block
} // end of if block
else
{
UtilityMethod.ShowMessage("The program was unable to obtain your system's location."
+ "\nYour location will have to be set manually using the preferences dialog.", null);
PreferencesForm pf = new PreferencesForm();
pf.Show();
} // end of else block
} // end of if block
} // end of else if block
Init();
#endregion
}// end of method Launch
