# -*- coding: utf-8 -*-

from __future__ import unicode_literals

from docutils import nodes
from docutils.parsers.rst import directives, Directive


class PeerTube(Directive):
    """ Embeds PeerTube video in posts.

        Based on pelican_peertube by kura
        https://github.com/kura/pelican_youtube/

        INSTANCE_URL & VIDEO_ID is required, other arguments are optional

        Usage:
        ..peertube:: INSTANCE_URL VIDEO_ID
    """

    def boolean(self, argument):
        """Conversion function for yes/no Trues/False."""
        value = directives.choice(argument, ("yes", "True", "no", "False"))
        return value in ("yes", "True")

    required_arguments = 2
    optional_arguments = 8
    optional_spec = {
        "width": directives.positive_int,
        "height": directives.positive_int,
        "fullscreen": boolean,
        "seamless": boolean,
        "autoplay": boolean,
        "muted": boolean,
        "loop": boolean,
        "title_show": boolean,
        "privacy_show": boolean,
        "controls_show": boolean,
    }

    final_argument_whitespace = False
    has_content = False

    def run(self):
        instanceURL = self.arguments[0].strip()
        videoID = self.arguments[1].strip()
        
        url = f"https://{instanceURL}/videos/embed/{videoID}?"

        width = self.options["width"] if "width" in self.options else "560"
        height = self.options["height"] if "height" in self.options else "315"
        fullscreen = (
            self.options["fullscreen"] if "fullscreen" in self.options else True
        )
        seamless = self.options["seamless"] if "seamless" in self.options else True
        autoplay = self.options["autoplay"] if "autoplay" in self.options else False
        muted = self.options["muted"] if "muted" in self.options else False
        loop = self.options["loop"] if "loop" in self.options else False
        title_show = (
            self.options["title_show"] if "title_show" in self.options else True
        )
        privacy_show = (
            self.options["privacy_show"] if "privacy_show" in self.options else True
        )
        controls_show = (
            self.options["controls_show"] if "controls_show" in self.options else True
        )

        iframe_arguments = [
            (width, "width='{}'"),
            (height, "height='{}'"),
            (fullscreen, "allowfullscreen"),
            (seamless, "frameborder='0'"),
        ]

        url_arguments = [
            (autoplay, "autoplay='{}'"),
            (muted, "muted='{}'"),
            (loop, "loop='{}'"),
            (title_show, "title='{}'"),
            (privacy_show, "warningTitle='{}'"),
            (controls_show, "controls='{}'"),
        ]

        for value, format in url_arguments:
            toggle = 1 if value == True else 0
            url += (format).format(toggle) if value else ""

        embed_block = f"<iframe src={url} "

        for value, format in iframe_arguments:
            embed_block += (format + " ").format(value) if value else ""

        embed_block = embed_block[:-1] + "></iframe>"

        return [
            nodes.raw("", "<div class=peertube>", format="html"),
            nodes.raw("", embed_block, format="html"),
            nodes.raw("", "</div>", format="html"),
        ]


def register():
    directives.register_directive("peertube", PeerTube)