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using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using System.Xml.Linq;
namespace Mono.Documentation.Updater
{
public class TypeMap
{
/// <summary>This is the core lookup data structure ... main key is language, secondary key is typename "from"</summary>
Dictionary<string, Dictionary<string,TypeMapItem>> map;
public List<TypeMapItem> Items { get; private set; }
public string GetTypeName(string lang, string typename)
{
if (map == null) InitializeMap();
if (!nonsinitialized && typename.IndexOf(".") == -1)
InitializeNoNamespace();
Dictionary<string, TypeMapItem> val;
if (map.TryGetValue(lang, out val))
{
TypeMapItem itemMap;
if (val.TryGetValue(typename, out itemMap))
{
return itemMap.To;
}
}
return typename;
}
bool nonsinitialized = false;
private void InitializeNoNamespace()
{
if (nonsinitialized) return;
Func<string, string> chopType = (orig) =>
{
if (orig.Contains("."))
{
var lastDot = orig.LastIndexOf(".");
var choppedKey = orig.Substring(lastDot+1, orig.Length - lastDot -1);
return choppedKey;
}
return orig;
};
foreach (var langitem in map.Values)
{
var iitem = langitem.ToArray();
foreach (var item in iitem)
{
string choppedKey = chopType(item.Key);
TypeMapItem choppedItem = new TypeMapItem
{
From = choppedKey,
To = chopType(item.Value.To),
Langs = item.Value.Langs
};
langitem[choppedKey] = choppedItem;
}
}
}
private void InitializeMap()
{
map = new Dictionary<string, Dictionary<string, TypeMapItem>>();
// init the map
foreach (var item in Items)
{
// for each language that this item applies to, make a separate entry in the map for that language
foreach (var itemLang in item.LangList)
{
Dictionary<string, TypeMapItem> langList;
if (!map.TryGetValue(itemLang, out langList))
{
langList = new Dictionary<string, TypeMapItem>();
map.Add(itemLang, langList);
}
// sanitize the inputs
int genIndex = item.From.IndexOf("`");
if (genIndex > 0)
item.From = item.From.Substring(0, genIndex);
genIndex = item.To.IndexOf("`");
if (genIndex > 0)
item.To = item.To.Substring(0, genIndex);
// add to the list if it's not already there
if (!langList.ContainsKey(item.From))
langList.Add(item.From, item);
}
}
}
public static TypeMap FromXml(string path)
{
var doc = XDocument.Load(path);
return FromXDocument(doc);
}
public static TypeMap FromXDocument(XDocument doc)
{
TypeMap map = new TypeMap
{
Items = doc.Root.Elements()
.Select(e =>
{
switch (e.Name.LocalName)
{
case "TypeReplace":
return ItemFromElement<TypeMapItem>(e);
case "InterfaceReplace":
var item = ItemFromElement<TypeMapInterfaceItem>(e);
item.Members = e.Element("Members");
return item;
default:
Console.WriteLine($"\tUnknown element: {e.Name.LocalName}");
break;
}
return new TypeMapItem();
})
.ToList()
};
return map;
}
private static T ItemFromElement<T>(XElement e) where T: TypeMapItem, new()
{
return new T
{
From = e.Attribute("From").Value,
To = e.Attribute("To").Value,
Langs = e.Attribute("Langs").Value
};
}
public TypeMapInterfaceItem HasInterfaceReplace(string lang, string facename)
{
Dictionary<string, TypeMapItem> typemap;
if (map.TryGetValue(lang, out typemap))
{
TypeMapItem item;
if (typemap.TryGetValue(facename, out item))
{
var ifaceItem = item as TypeMapInterfaceItem;
if (ifaceItem != null)
return ifaceItem;
}
}
return null;
}
}
public class TypeMapItem
{
public string From { get; set; }
public string To { get; set; }
public string Langs { get; set; }
public IEnumerable<string> LangList { get
{
foreach (var l in Langs.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries).Select(i => i.Trim()))
yield return l;
}
}
}
public class TypeMapInterfaceItem : TypeMapItem
{
public XElement Members { get; set; }
public XmlElement ToXmlElement(XElement el)
{
var doc = new XmlDocument();
doc.Load(el.CreateReader());
var xel = doc.DocumentElement;
xel.ParentNode.RemoveChild(xel);
return xel;
}
}
}
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