public async Task CreateLanguageFile(LanguageList languageList)
{
languageList.Languages = await GetLanguageListFromAPI(languageList.Languages);
languageList.LastUpdated = DateTime.Now;
SaveDataToFile(languageList, languageListFileName);
}
public async Task UpdateLanguageList(LanguageList languageList)
{
LanguageList languageListCurrent = GetLanguageListFromFile(languageList);
List<Language> languageListFromWeb = await GetLanguageListFromAPI(new List<Language>());
languageListCurrent.Languages = AddLanguages(languageListCurrent.Languages, languageListFromWeb);
languageListCurrent.Languages = DeleteLanguages(languageListCurrent.Languages, languageListFromWeb);
languageListCurrent.Languages = await UpdateLanguages(languageListCurrent.Languages, languageListFromWeb);
languageListCurrent.LastUpdated = DateTime.Now;
SaveDataToFile(languageListCurrent, languageListFileName);
}
public LanguageList GetLanguageListFromFile(LanguageList languageList)
{
languageList = RetrieveLocalData(languageListFileName);
return languageList;
}
private void SaveDataToFile(LanguageList languageList, string fileName)
{
if (File.Exists(fileName))
{
File.Delete(fileName);
}
string jsonContents = JsonConvert.SerializeObject(languageList);
File.WriteAllText(fileName, jsonContents);
}
private LanguageList RetrieveLocalData(string fileName)
{
LanguageList languageList = new LanguageList();
try
{
if (File.Exists(fileName))
{
languageList = JsonConvert.DeserializeObject<LanguageList>(File.ReadAllText(fileName));
return languageList;
}
else
{
//System.Diagnostics.Debug.WriteLine("Retrieve Language File: file does not exist");
return null;
}
}
catch (Exception exception)
{
//System.Diagnostics.Debug.WriteLine("Language File: " + exception.Message);
return null;
}
return languageList;
}