public static ReportTree FromList(IEnumerable <ReportRegistry.Report> reports,
string rootPath = null, string categoryOrder = null)
{
if (reports == null)
{
throw new ArgumentNullException("reports");
}
rootPath = rootPath ?? "";
categoryOrder = categoryOrder ?? "";
var tree = new ReportTree();
var categoryByKey = new Dictionary <string, ReportTree.Category>(StringComparer.CurrentCultureIgnoreCase);
foreach (var report in reports)
{
ReportTree.Category category;
if (categoryByKey.TryGetValue(report.Category.Key ?? "", out category))
{
category.Reports.Add(report);
continue;
}
var parts = (report.Category.Key ?? "Other")
.Split(new char[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
string current = "";
category = null;
foreach (var part in parts)
{
string prior = current;
if (current.Length > 0)
{
current += "/";
}
current += part;
if (current.Length <= rootPath.Length)
{
continue;
}
if (!categoryByKey.TryGetValue(current ?? "", out category))
{
category = new ReportTree.Category();
category.Key = current;
category.Title = ReportRegistry.GetReportCategoryTitle(current);
categoryByKey[current] = category;
if (!categoryByKey.ContainsKey(prior))
{
tree.Root.SubCategories.Add(category);
}
else
{
var x = categoryByKey[prior];
x.SubCategories.Add(category);
}
}
}
if (category == null)
{
tree.Root.Reports.Add(report);
}
else
{
category.Reports.Add(report);
}
}
var order = new Dictionary <string, int>(StringComparer.OrdinalIgnoreCase);
var i = 0;
foreach (var x in categoryOrder.Split(new char[] { ';' }))
{
var xt = x.TrimToNull();
if (xt != null)
{
order[xt] = i++;
}
}
Comparison <ReportTree.Category> sort = (x, y) =>
{
var c = 0;
if (x.Key != y.Key)
{
var c1 = order.ContainsKey(x.Key) ? (Int32?)order[x.Key] : null;
var c2 = order.ContainsKey(y.Key) ? (Int32?)order[y.Key] : null;
if (c1 != null && c2 != null)
{
c = c1.Value - c2.Value;
}
else if (c1 != null)
{
c = -1;
}
else if (c2 != null)
{
c = 1;
}
}
if (c == 0)
{
c = String.Compare(x.Title, y.Title, StringComparison.CurrentCultureIgnoreCase);
}
return(c);
};
foreach (var category in categoryByKey.Values)
{
if (category.SubCategories != null)
{
category.SubCategories.Sort(sort);
}
}
tree.Root.SubCategories.Sort(sort);
return(tree);
}
public ReportTree GetReportTree(string category)
{
var reports = ReportRegistry.GetAvailableReportsInCategory(category);
return(ReportTree.FromList(reports, category));
}