#!/bin/bash

DEST="/output"

function writeChannels {
    O="$DEST/channels.txt"
    rm "$O"
    # the lockpicking lawyer
    echo "https://www.youtube.com/channel/UCm9K6rby98W8JigLoZOh6FQ/videos" >> $O
    # deviant ollam
    echo "https://www.youtube.com/user/DeviantOllam/videos" >> $O
    # vsauce, michael here
    echo "https://www.youtube.com/user/Vsauce/videos" >> $O
    # this old tony
    echo "https://www.youtube.com/user/featony/videos" >> $O
    # clickspring
    echo "https://www.youtube.com/channel/UCworsKCR-Sx6R6-BnIjS2MA/videos" >> $O
    # AvE
    echo "https://www.youtube.com/user/arduinoversusevil/videos" >> $O
    # Abom79
    echo "https://www.youtube.com/user/Abom79/videos" >> $O
    # NYC CNC
    echo "https://www.youtube.com/user/saunixcomp/videos" >> $O
    # dirtyUSMLE
    echo "https://www.youtube.com/channel/UCZaDAUF7UEcRXIFvGZu3O9Q/videos" >> $O
    # Speedy Pharmacology
    echo "https://www.youtube.com/channel/UC-i2EBYXH6-GAglvuDIaufQ/videos" >> $O
    # Larry Mellick
    echo "https://www.youtube.com/channel/UC_yjveGdyx6mqqHkHaD-_bg/videos" >> $O
    # Medskl
    echo "https://www.youtube.com/channel/UC54htze_JB0zz9H6oAbMOJQ/videos" >> $O
    # AANS Neurosurgery
    echo "https://www.youtube.com/channel/UCXAfmcfOeS0rxDz6sp0cYYg/videos" >> $O
    # Nucleus Medical Media
    echo "https://www.youtube.com/channel/UC85VW73bQLEjs_taFKP7TwQ/videos" >> $O
    # Wendover
    echo "https://www.youtube.com/channel/UC9RM-iSvTu1uPJb8X5yp3EQ/videos" >> $O
    # Veritasium
    echo "https://www.youtube.com/channel/UCHnyfMqiRRG1u-2MsSQLbXA/videos" >> $O
    # Kurzgesagt
    echo "https://www.youtube.com/channel/UCsXVk37bltHxD1rDPwtNM8Q/videos" >> $O
    # captain joe
    echo "https://www.youtube.com/channel/UC88tlMjiS7kf8uhPWyBTn_A/videos" >> $O
}

function main {
    init
    writeChannels
    while true ; do
        download
        sleep 3600
    done
}

function init {
    umask 0000
    cd "$DEST"
}

function download {
    for CHANNEL in $(cat channels.txt); do
        yt-dlp --config-location /etc/youtube-dl.conf $CHANNEL
    done
}