Search for videos with the YouTube API in the terminal to watch your favourite videos in mpv.

yt-search.sh

#!/bin/sh

# change this key:
API_KEY=""

CACHE_DIR="$HOME/.cache/yt-search"
DEFAULT_COMMAND="mpv '%s'"

if [ -z "$API_KEY" ]; then
    echo "Please input an API key in the script."
    echo "https://developers.google.com/youtube/registering_an_application"
    exit
fi



VIDEO_URL="https://www.youtube.com/watch?v=%s"
API_URL="https://www.googleapis.com/youtube/v3/search?q=%s&key=$API_KEY&type=video&part=snippet"

mkdir -p "$CACHE_DIR"

query=$(echo "$1" | sed "s/'/%27/g" | sed 's/"/%22/g' | sed "s/ /+/g" | sed "s/&/%26/g" | sed "s|/|%2F|g")

if [ -z "$query" ]; then
    echo -n "Input Query: "
    read query
fi

if [ -n "$query" ]; then
    CACHE_FILE="$CACHE_DIR/$query"
    if [ -f "$CACHE_FILE" ];then
        echo "Using cached result."
        result=$(cat "$CACHE_FILE")
    fi
fi

if [ -z "$result" ]; then
    result=$(curl -s $(printf "$API_URL" "$query"))
    error=$(echo "$result" | jq ".error" | sed "s/^null$//g")
    if [ -z "$error" ]; then
        if [ -n "$query" ]; then
            echo "$result" > "$CACHE_FILE"
        else
            echo "Unable to cache empty query."
        fi
    else
        echo "API responded with error. Do not cache result."
        echo "$error"
        exit
    fi
fi

snippets=$(echo "$result" | jq -c ".items[].snippet")
count=$(echo "$result" | jq ".items | length")

echo "Found $count videos:"
echo "$snippets" | awk -F '|' '{printf "[%s] ", NR; print $s | "jq .title"; close("jq .title"); printf "Description: "; print $s | "jq .description"; close("jq .description"); printf "Channel: "; print $s | "jq .channelTitle"; close("jq .channelTitle"); printf "Published At: "; print $s | "jq .publishedAt"; close("jq .publishedAt")}'

echo -n "Input index [1]: "
read input
if [ -z "$input" ]; then
    input="1"
fi
input=$(expr "$input" - 1)

video_id=$(echo "$result" | jq ".items[$input].id.videoId" | sed 's/^"//g'  | sed 's/"$//g')

url=$(printf "$VIDEO_URL" "$video_id")

echo "Using $url"

echo -n "Command to run [$DEFAULT_COMMAND]: "
read command

if [ -z "$command" ]; then
    command="$DEFAULT_COMMAND"
fi

if [ "0" = $(echo "$command" | grep -c "%s") ]; then
    command="$command '%s'"
fi

command=$(printf "$command" "$url")
echo "Running: $command"

sh -c "$command"