public ProcessingResult <BlogPostMetadata> Resolve(string blog)
{
var result = new ProcessingResult <BlogPostMetadata>();
var idPattern = "<!-- Id: (?<match>.*) -->";
var datePattern = "<!-- Date: (?<match>.*) -->";
var categoriesPattern = "<!-- Categories: (?<match>.*) -->";
var headerPattern = "<!-- #header -->(?<match>(?s).*)<!-- #endheader -->";
var pagePattern = "<!-- Page -->";
var titleToProcess = blog.Split(Environment.NewLine).FirstOrDefault();
var title = titleToProcess.Replace("# ", "");
var id = GetMatched(blog, idPattern);
var isArticle = !blog.Contains(pagePattern);
result.AddRequiredMessageIfNullOrEmpty(nameof(BlogPostMetadata.Title), title);
result.AddRequiredMessageIfNullOrEmpty(nameof(BlogPostMetadata.Id), id);
if (!isArticle)
{
result.Result = new BlogPostMetadata
{
Id = id,
Title = title,
PostType = BlogPostMetadata.PostTypeEnum.Page
};
result.Status = result.Messages.Count == 0 ? ProcessingStatus.Ok : ProcessingStatus.Error;
return(result);
}
var date = GetMatched(blog, datePattern).Trim();
var categories = GetMatched(blog, categoriesPattern);
var header = GetMatched(blog, headerPattern);
var headerNoNewLines = header.Replace(Environment.NewLine, "");
result.AddRequiredMessageIfNullOrEmpty(nameof(BlogPostMetadata.Header), header);
result.AddRequiredMessageIfNullOrEmpty(nameof(BlogPostMetadata.Categories), categories);
result.AddRequiredMessageIfNullOrEmpty(nameof(BlogPostMetadata.PublishedDate), date);
var categoriesAsList = categories.Split(',')
.Select(i => i.Trim())
.ToListSafe();
var datetime = new DateTime(
int.Parse(date.Substring(0, 4)),
int.Parse(date.Substring(4, 2)),
int.Parse(date.Substring(6, 2)));
result.Result = new BlogPostMetadata
{
Id = id,
Title = title,
Header = headerNoNewLines,
Categories = categoriesAsList,
PublishedDate = datetime,
PostType = BlogPostMetadata.PostTypeEnum.Article
};
result.Status = result.Messages.Count == 0 ? ProcessingStatus.Ok : ProcessingStatus.Error;
return(result);
}
