/// <summary>
/// Does the most basic deserialization. We will return when we reach the closing of
/// the first opening block we find.
/// </summary>
/// <param name="input"></param>
/// <remarks>
/// iCal input is a series of lines (some are continued).
/// </remarks>
public static RawModel Deserialize(IEnumerable<string> lines)
{
var stack = new Stack<RawModel>();
RawModel current = null;
foreach (var line in lines.UnfoldLines())
{
var t = line.ParseAsICalContentLine();
if (t.Name == "BEGIN")
{
var r = new RawModel() { Name = t.Value };
stack.Push(current);
if (current != null)
current.AddBlock(r);
current = r;
}
else if (t.Name == "END")
{
(t.Value != current.Name).ThrowiCalError("Opening ('{0}') and closing ('{1}') blocks do not match", current.Name, t.Value);
// Note that the first push we do will be a null - so the check here may look funny!
if (stack.Count == 1)
return current;
current = stack.Pop();
}
else
{
(current == null).ThrowiCalError("iCal Key/Value pair outside block");
current.AddProperty(t.Name, t);
}
}
return null;
}
/// <summary>
/// Given a block that is a VEvent, do the translation.
/// </summary>
/// <param name="arg"></param>
/// <returns></returns>
private static object MakeVEvent(RawModel arg)
{
return new iCalVEvent()
{
Summary = arg.GetPropValueWithDefault("SUMMARY", "").AsiCalText(),
UID = arg.GetPropValueWithDefault("UID", "").AsiCalText(),
Location = arg.GetPropValueWithDefault("LOCATION", "").AsiCalText(),
Description = arg.GetPropValueWithDefault("DESCRIPTION", "").AsiCalText(),
DTEnd = arg.GetPropValueWithDefault("DTEND", "").AsiCalDateTime(),
DTStart = arg.GetPropValueWithDefault("DTSTART", "").AsiCalDateTime(),
URL = arg.GetPropValueWithDefault("URL", "").AsiCalUri(),
Properties = arg.ContentLine,
};
}
/// <summary>
/// Add a block to the list of blocks.
/// </summary>
/// <param name="r"></param>
internal void AddBlock(RawModel r)
{
var inserter = new RawModel[] { r };
if (!SubBlocks.ContainsKey(r.Name))
{
SubBlocks[r.Name] = inserter;
}
else
{
// TODO: Make efficient
SubBlocks[r.Name] = SubBlocks[r.Name]
.Concat(inserter)
.ToArray();
}
}
