from orgparse import load

debug: bool = True

def debugPrint(msg: str) -> None:
    if debug:
        print("(ORG HANDLER) PRINT:  " + msg)

def checkAndRetrieveMetadata(fileData, metadataName: str):
    line = fileData.readline()
    metadataFullName = "#+" + metadataName + ":"
    if metadataFullName in line:
        linetoarray = line.split()
        return " ".join(linetoarray[1:])
    else:
        debugPrint("Could not find " + metadataFullName + " metadata field of document!")
        return False
    

def orgToHTML(filePath: str):
    try:
        fileData = open(filePath, 'r')
        orgRoot = load(filePath)

        Title = checkAndRetrieveMetadata(fileData, "TITLE")
        if not Title:
            raise Exception("A valid #+TITLE: field is required as the first line of the org page.")
        shortDescription = checkAndRetrieveMetadata(fileData, "DESCRIPTION")
        if not shortDescription:
            debugPrint("No valid description found, will generate a placeholder from the blog itself...")
            firstText = orgRoot[1].body
            shortDescription = (firstText[:60] + "...") if len(firstText) > 60 else firstText

        for node in orgRoot[1:]:
            if node.heading:
                headingLevel = str(node.level)
                print("<h" + headingLevel + ">" + node.heading + "</h" + headingLevel + ">")
            if node.body:
                print(node.body)
    except Exception as error:
        debugPrint("Error parsing org! " + repr(error))

orgToHTML("./test.org")