using QIQI.EProjectFile;
using QIQI.EProjectFile.Expressions;
using QIQI.EProjectFile.Statements;
using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;


private static T[] AddArrayElement<T>(T[] array, T element)
{
	var newArray = new T[array.Length + 1];
	Array.Copy(array, newArray, array.Length);
	newArray[array.Length] = element;
	return newArray;
}
		
// 添加Tag子程序（如果不存在），然后在每个子程序的开头加上：Tag(<子程序名>)
var projectFile = new EProjectFile();
projectFile.Load(File.OpenRead(fileName));
int tagMethod = 0;
try
{
	tagMethod = Array.Find(projectFile.Code.Methods, x => x.IsStatic && string.Compare(x.Name, "Tag") == 0).Id;
}
catch (Exception)
{
	int tagStaticClass = projectFile.Code.AllocId(EplSystemId.Type_StaticClass);
	tagMethod = projectFile.Code.AllocId(EplSystemId.Type_Method);
	projectFile.Code.Classes = AddArrayElement(projectFile.Code.Classes, new ClassInfo(tagStaticClass)
	{
		Name = "TagMoudle",
		Method = new int[] { tagMethod }
	});
	projectFile.Code.Methods = AddArrayElement(projectFile.Code.Methods, new MethodInfo(tagMethod)
	{
		Name = "Tag",
		Class = tagStaticClass,
		CodeData = new StatementBlock() { new ExpressionStatement() }.ToCodeData(projectFile.Encoding),
		Parameters = new MethodParameterInfo[]
		{
			new MethodParameterInfo(projectFile.Code.AllocId(EplSystemId.Type_Local))
			{
				Name = "Name",
				DataType = EplSystemId.DataType_String
			}
		}
	});
	if (projectFile.EPackageInfo != null)
	{
		projectFile.EPackageInfo.FileNames = AddArrayElement(projectFile.EPackageInfo.FileNames, null);
	}
}
foreach (var method in projectFile.Code.Methods)
{
	if (method.Id != tagMethod)
	{
		StatementBlock block = CodeDataParser.ParseStatementBlock(method.CodeData.ExpressionData, method.CodeData.Encoding);
		{
			if (block[0] is ExpressionStatement exprStat && exprStat.Expression is CallExpression callExpr) 
				if (callExpr.LibraryId == -2 && callExpr.MethodId == tagMethod)
					block.RemoveAt(0);
		}
		block.Insert(0, new ExpressionStatement(new CallExpression(-2, tagMethod, new ParamListExpression() { new StringLiteral(method.Name) }), false, "Added from C# Project \"EProjectFile\""));
		method.CodeData = block.ToCodeData(projectFile.Encoding);
	}
}
projectFile.Save(File.Create(fileName));