private async Task <byte[]?> ReadArticleAsset(ArticleMeta meta, string assetKey)
{
ArticleAssets?cachedAssets = null;
if (_cachedAssets.ContainsKey(meta.Id))
{
cachedAssets = _cachedAssets[meta.Id];
var(_, foundAssetBytes) = cachedAssets.Assets.FirstOrDefault(a => a.AssetKey == assetKey);
if (foundAssetBytes != default)
{
return(foundAssetBytes);
}
}
var articlePath = $"{_config.BlogContentPath}/{meta.FileKey}/";
var assetFileNames = Directory.GetFiles(articlePath)
.Select(Path.GetFileName)
.Where(f => string.Equals(f, assetKey, StringComparison.InvariantCultureIgnoreCase))
.ToList();
if (assetFileNames.Count == 0)
{
return(null);
}
if (assetFileNames.Count > 1)
{
throw new Exception($"Duplicate assets with filename '{assetKey}'");
}
if (cachedAssets == null)
{
cachedAssets = new ArticleAssets(meta.Id, meta.FileKey, new List <(string, byte[])>());
_cachedAssets.Add(meta.Id, cachedAssets);
}
var assetPath = $"{articlePath}{assetFileNames[0]}";
Assert.True(File.Exists(assetPath), $"Asset with path and filename '{assetFileNames[0]}' could not be found");
try
{
var file = await File.ReadAllBytesAsync(assetPath);
cachedAssets.Assets.Add((assetFileNames[0], file));
return(file);
}
catch (Exception e)
{
throw new Exception($"Error reading asset with filename '{assetFileNames[0]}'", e);
}
}
private async Task <Article> ReadArticleContent(string fileName, ArticleMeta meta)
{
var contentPath = $"{_config.BlogContentPath}/{fileName}/{fileName}{ContentFileExtension}";
Assert.True(File.Exists(contentPath), $"File '{contentPath}' does not exist");
var rawContent = await File.ReadAllTextAsync(contentPath);
var article = new Article(meta, rawContent);
_cachedContent.Add(meta.Id, article);
return(article);
}
public Article(ArticleMeta meta, string content)
{
Meta = meta;
Content = content;
}