from browser import html

#----------------------------------------------------------------------------
# the (1st) "htag.Tag" implem in brython (in a dirty way)
#----------------------------------------------------------------------------
# In html/head add:
#  <script type="text/python" src="https://mlan.alwaysdata.net/pub/htagbryt.txt" id="htagbryt"></script>
# In script/python add:
#  from htagbryt import Tag
#----------------------------------------------------------------------------

class TAG:
    def __init__(self, content=None, **attrs):
        if content: self <= content
        for k,v in attrs.items():
            if k.startswith("_"):
                k = k[1:].replace( "_", "-" )
                if k.startswith("on"):
                    self.bind( k[2:], v )
                else:
                    self.attrs[k] = v
            else:
                setattr( self, k, v )

    def __iadd__(self, elt):   # "+=" (like "<=")
        self <= elt
        return self
        
    def __enter__(self): # so can use construction with 'with as:' statement
        return self
    def __exit__(self, exc_type, exc_val, exc_tb):
        pass     

class TagCreator(type):
    types={}
    def __getattr__(self, tagName:str):
        nodeName = tagName.replace( "_", "-" )
        if nodeName not in TagCreator.types:
            TagCreator.types[nodeName]=html.maketag(nodeName)
        typ = TagCreator.types[nodeName]
        return type('Tag%s' % tagName.capitalize(), (TAG,typ), {**TAG.__dict__,"tag":nodeName,"typ":typ})

class Tag(metaclass=TagCreator):
    pass