import re

if(__name__=="__main__"):
    # Assemble the script which embeds the Markdeep page into the preview blog
    PreviewBlogPage=open("PreviewBlogPage.htm","rb").read().decode("utf-8");
    HeadMatch=re.search("<head(.*?)>(.*?)</head>",PreviewBlogPage,re.DOTALL);
    HeadAttributes=HeadMatch.group(1);
    FullDocumentHead=HeadMatch.group(2);
    BodyMatch=re.search("<body(.*?)>(.*?)</body>",PreviewBlogPage,re.DOTALL);
    BodyAttributes=BodyMatch.group(1);
    FullPreviewBody=BodyMatch.group(2);
    ArticleHTMLCodeMacro="$(ARTICLE_HTML_CODE)";
    iArticleHTMLCodeMacro=FullPreviewBody.find(ArticleHTMLCodeMacro);
    DocumentBodyPrefix=FullPreviewBody[0:iArticleHTMLCodeMacro];
    DocumentBodySuffix=FullPreviewBody[iArticleHTMLCodeMacro+len(ArticleHTMLCodeMacro):];
    FullPrepareHTMLCode=open("PrepareHTML.js","rb").read().decode("utf-8");
    ReplacementList=[
        ("$(FULL_DOCUMENT_HEAD)",FullDocumentHead),
        ("$(DOCUMENT_BODY_PREFIX)",DocumentBodyPrefix),
        ("$(DOCUMENT_BODY_SUFFIX)",DocumentBodySuffix)
    ];
    for Macro,Replacement in ReplacementList:
        FullPrepareHTMLCode=FullPrepareHTMLCode.replace(Macro,Replacement.replace("\r\n","\\r\\n\\\r\n").replace("'","\\'"));
    # Generate code which sets body and head attributes appropriately
    for Element,AttributeCode in [("head",HeadAttributes),("body",BodyAttributes)]:
        FullPrepareHTMLCode+="\r\n// Setting "+Element+" attributes\r\n";
        for Match in re.finditer("(\\w+)=\\\"(.*?)\\\"",AttributeCode):
            FullPrepareHTMLCode+="document."+Element+".setAttribute(\""+Match.group(1)+"\",\""+Match.group(2)+"\");\r\n";
    open("PrepareHTML.full.js","wb").write(FullPrepareHTMLCode.encode("utf-8"));

    # Concatenate all the scripts together
    SourceFileList=[
                    "PrepareHTML.full.js",
                    "SetMarkdeepMode.js",
                    "markdeep.min.js",
                    "DisplayMarkdeepOutput.js",
                    "InvokeMathJax.js"
    ];
    OutputCode="\r\n\r\n".join(["// "+SourceFile+"\r\n\r\n"+open(SourceFile,"rb").read().decode("utf-8") for SourceFile in SourceFileList]);
    OutputFile=open("MarkdeepUtility.js","wb");
    OutputFile.write(OutputCode.encode("utf-8"));
    OutputFile.close();
    print("Done.");