import requests
from flask import Blueprint, render_template, request, flash

from ..common.common import fallback_route

frontend = Blueprint('invidious', __name__,
    template_folder='templates',
    static_folder='static',
    static_url_path='/static/iv')

# TODO: minimal implementation (invidio.us hardcoded, videos only, no optional_params)
@frontend.route('/search')
def search():
    #token = getattr(current_user, 'token', 'guest')
    q = request.args.get('q')
    page = int(request.args.get('page', 1))
    provider = request.args.get('provider', 'invidio.us:443')

    """
        sort_by: "relevance", "rating", "upload_date", "view_count"
        date: "hour", "today", "week", "month", "year"
        duration: "short", "long"
        type: "video", "playlist", "channel", "all", (default: video)
        features: "hd", "subtitles", "creative_commons", "3d", "live",
                  "purchased", "4k", "360", "location", "hdr" (comma separated)
        region: ISO 3166 country code (default: "US")
    """
    optional_params = {
        p: request.args.get(p)
        for p in ['sort_by', 'date', 'duration', 'type', 'features', 'region']
    }

    if not q:
        return "no search query", 400

    r = requests.get(f"https://invidio.us/api/v1/search", {
        'q': q,
        'page': page,
        # **optional_params,
    })
    if not r.ok:
        return "error fetching search results", 502 # TODO: better

    # XXX: should check r.json if it really are search results (if other provider)
    # XXX: should transform invidious-json to our naming scheme
    return render_template('search.html.j2', rows=r.json(), query=q, page=page,
            optional_params=optional_params)

@frontend.route('/channel/<channel_id>')
@frontend.route('/user/<channel_id>')
def channel(channel_id):
    # proxying invidious is way slower, so we don't do it for page 0 (i.e the 15 newest videos we can get from youtube ourselves)
    if 'page' not in request.args:
        return fallback_route(channel_id)

    page = int(request.args.get('page', 1))
    sort_by = request.args.get('sort_by', 'newest')
    provider = request.args.get('provider', 'invidio.us:443')

    r = requests.get(f"https://invidio.us/api/v1/channels/{channel_id}/videos", {
        'sort_by': sort_by,
        'page': page,
    }, allow_redirects=False)
    if not r.ok or r.status_code != 200:
        flash("invidious did not find the channel or is blocked. showing minimal response", "error")
        return fallback_route(channel_id)

    return render_template('channel.html.j2', rows=r.json(), sort_by=sort_by, page=page)

@frontend.route('/playlist')
def playlist():
    # proxying invidious is way slower, so we don't do it for page 0 (i.e the 15 newest videos we can get from youtube ourselves)
    if 'page' not in request.args:
        return fallback_route()

    playlist_id = request.args.get('list')
    if not playlist_id:
        return "bad list id", 400 # todo

    page = int(request.args.get('page', 1))
    provider = request.args.get('provider', 'invidio.us:443')

    r = requests.get(f"https://invidio.us/api/v1/playlists/{playlist_id}", {
        'page': page,
    }, allow_redirects=False)
    if not r.ok or r.status_code != 200:
        flash("invidious did not find the channel or is blocked. showing minimal response", "error")
        return fallback_route(playlist_id)

    return render_template('channel.html.j2', rows=r.json().get('videos',[]), page=page)