shellTube/lib/yt-meta

#!/bin/sh

#####################
# Name: yt-meta.sh
# Date: 2016-12-10
# Lisc: ISC
# Main: jadedctrl
# Desc: Fetches metadata about
#       a specific YT video.
#####################

# Usage: yt-meta.sh $video_id

optnum=0

for argument in $@
do
    case $argument in
    -c)
        options="$options c"
        optnum=$((optnum+1))
        ;;
    -d) # duration
        options="$options d"
        optnum=$((optnum+1))
        ;;
    -D) # date
        options="$options D"
        optnum=$((optnum+1))
        ;;
    -v)
        options="$options v"
        optnum=$((optnum+1))
        ;;
    -t)
        options="$options t"
        optnum=$((optnum+1))
        ;;
    *)
        preid="$argument"
    esac
done
        
if echo "$preid" | grep "youtube.com"
then 
    id="$(echo $1 | sed 's/.*video_id=//')"
elif [ -z $preid ]
then
    echo "No video specified."
    exit 1
else
    id="$preid"
fi

if [ -e "./lib/yt-meta" ]
then
    alias yt-channel="./lib/yt-channel"
    alias yt-search="./lib/yt-down"
    alias yt-meta="./lib/yt-meta"
    alias yt-search="./lib/yt-search"
    alias yt-down="./lib/yt-channel"
    alias st-download="./lib/st-download"
    alias st-video="./lib/st-video"
fi


video_file="/tmp/$(mktemp -u yt-video_XXXXXX)"
if type "wget" &> /dev/null
then
    wget -q https://youtube.com/watch?v=$id -O $video_file
    wget -q https://youtube.com/results?search_query=$id -O $video_file.1
elif type "curl" &> /dev/null
then
    curl -s https://youtube.com/watch?v=$id -o $video_file
    curl -s https://youtube.com/results?search_query=$id -o $video_file.1
fi

# Now for displaying the metadata
title="$(grep "\"title\":\"" $video_file | sed 's/.*"title":"//' | sed 's/".*//')"
author="$(grep "\"author\":\"" $video_file | sed 's/.*"author":"//' | sed 's/".*//')"
views="$(grep "\"view_count\":\"" $video_file | sed 's/.*"view_count":"//' | sed 's/".*//')"
duration="$(grep "<a href=\"/watch?v=$1" $video_file.1 | sed 's/.*Duration: //' | sed 's/\..*//')"
date="$(grep "datePublished" $video_file | sed 's/.*"datePublished" content="//' | sed 's/".*//')"
echo "$title"
echo "$author | $views | $duration | $date | $1"

for option in $options
do
    case $option in
        c) printf "$author" ;;
        t) printf "$title" ;;
        d) printf "$duration" ;;
        D) printf "$date" ;;
        v) printf "$views" ;;
    esac
    if [ $optnum -ge 2 ]
    then
        printf " | "
        optnum=$((optnum-1))
    fi
done
cp $video_file /tmp/mateo