public string MapHtmlColorToCategoryOrNull(string htmlColor, IEntitySynchronizationLogger logger)
{
var categoryColor = ColorMapper.MapHtmlColorToCategoryColor(htmlColor);
if (_categoryByHtmlColor.TryGetValue(htmlColor, out var mapping))
{
var mappedCategory = mapping.PreferredCategory;
if (_outlookColorByCategory.TryGetValue(mappedCategory, out var colorOfPreferredCategory))
{
if (colorOfPreferredCategory == categoryColor)
{
return(mappedCategory);
}
}
}
string category = null;
foreach (var entry in _outlookColorByCategory)
{
if (entry.Value == categoryColor)
{
category = entry.Key;
break;
}
}
if (category == null)
{
// No category with the required color exists. Create one with the corresponding html color name.
category = ColorMapper.MapCategoryColorToHtmlColor(categoryColor);
var(addCategoryResult, existingColorNameOrNull) = _outlookSession.AddCategoryNoThrow(category, categoryColor);
switch (addCategoryResult)
{
case CreateCategoryResult.DidAlreadyExist:
logger.LogWarning($"Did not map html color '{htmlColor}' to category '{category}', since category already exists with the wrong color ('{existingColorNameOrNull}').");
return(null);
case CreateCategoryResult.Error:
logger.LogError($"Error while trying to create category '{category}'.");
return(null);
case CreateCategoryResult.Ok:
_outlookColorByCategory.Add(category, categoryColor);
break;
}
}
ColorCategoryMapping newMapping = new ColorCategoryMapping
{
HtmlColor = htmlColor,
PreferredCategory = category
};
_categoryByHtmlColor[htmlColor] = newMapping;
_colorMappingsDataAccess.Save(_categoryByHtmlColor.Values);
return(category);
}
public string MapCategoryToHtmlColorOrNull(string categoryName)
{
if (_outlookColorByCategory.TryGetValue(categoryName, out var color))
{
return(ColorMapper.MapCategoryColorToHtmlColor(color));
}
else
{
return(null);
}
}