__all__ = ["obsidian_embed"]

# https://help.obsidian.md/embeds

# Supported:
# ![[image-4.png|292x316]]
def parse_embed(inline, match, state):
    filename = match.group("filename")
    attrs = {}
    if "|" in filename:
        filename, size = filename.split("|", 1)
    else:
        size = None
    attrs["filename"] = filename
    if size:
        if "x" in size:
            width, height = size.split("x", 1)
            if width:
                attrs["width"] = int(width)
            if height:
                attrs["height"] = int(height)
        else:
            attrs["width"] = int(size)
    state.append_token({"type": "embed", "attrs": attrs})
    return match.end()


INLINE_EMBED_PATTERN = (
    r'!\[\[' # begins with ![
    r'(?!\s)'  # not whitespace
    r'(?P<filename>.+?)'  # content between `![[xx]]`
    r'(?!\s)'  # not whitespace
    r'\]\]' # closing ]
)


def obsidian_embed(md: "Markdown") -> None:
    md.inline.register('embed', INLINE_EMBED_PATTERN, parse_embed, before="link")