radioshell.sh

#!/bin/sh
#title           :radioshell.sh
#description     :This script allows to manage and listen online radios in the terminal.
#author          :Tom Celestin
#date            :20190123
#version         :1.0
#usage           :bash radioshell.sh

cmd_list() {
    echo "\n====================[\e[0;32mRADIOS LIST\e[0m]====================="
    echo ""
    while read r;
    do
        echo "* $r"
    done < $RADIOS_LIST | sed 's/ :.*$//' | sed '/#.*$/d' | sort
    echo ""
    echo "======================================================"
}

get_radio_url_from_name() {
    url=$(grep "$1" "$RADIOS_LIST" | sed 's/^.*: //')
    echo "$url"
}

get_radio_name() {
    line=$1
    echo "$line" | sed 's/ :.*$//'
}

test_grep_result() {
    if [ "$(echo "$1" | wc -l)" -gt 1 ] || [ -z "$1" ]; then
        return 0
    fi
    echo "ok"
}

cmd_clear() {
    clear && echo "$(display_home)"
}

call_mpv() {
    echo "\n===================[\e[0;32mSTOP WITH 'q'\e[0m]===================="
    echo ""
    mpv $1
    echo ""
    echo "======================================================"
    cmd_clear
}

cmd_play() {
    radiourl="$(get_radio_url_from_name "$1")"
    if [ -z $(echo "$(test_grep_result "$radiourl")") ]; then
        echo "\n\e[0;31mSorry, I had trouble finding one radio with the name you provided.\e[0m"
        echo "If you can't decide, try the \e[0;34mrandom\e[0m command."
        echo "Or list them with the \e[0;34mlist\e[0m command."
        return 0
    fi
    call_mpv $radiourl
}

cmd_random() {
    randomline="$(cat $RADIOS_LIST | sort | sed '/#.*$/d' | shuf -n 1)"
    randomradioname=$(get_radio_name "$randomline")
    call_mpv $(get_radio_url_from_name $randomradioname)
}

cmd_add() {
    read -p "Enter radio name : " radioname
    read -p "Enter radio URL : " radiourl

    $(echo "$radioname : $radiourl" >> "$RADIOS_LIST")
}

cmd_delete() {
    read -p "Do you need the list ? [yes/no] : " answer
    
    if [ "$answer" = 'yes' ]
    then
        echo "$(cmd_list)"
    fi

    echo ""
    read -p "Enter radio name to delete : " radioname
    grep_result="$(grep "radioname" $RADIOS_LIST)"
    if [ -z "$(test_grep_result "$grep_result")" ]; then
        echo "\n\e[0;31mNo radio has been deleted. Please check the radio name you provided.\e[0m"
        return 0
    fi
    grep -v "$radioname" $RADIOS_LIST > /tmp/radiolist.tmp; mv /tmp/radiolist.tmp $RADIOS_LIST
}

cmd_help() {
    echo "======================[\e[0;32mCOMMANDS\e[0m]======================"
    echo ""
    echo "  \e[0;34mlist\e[0m...............Show radio names"
    echo "  \e[0;34mplay <radio_name>\e[0m..Play specified radio"
    echo "  \e[0;34mrandom\e[0m.............Play random radio from list"
    echo "  \e[0;34madd\e[0m................Add a radio to the list"
    echo "  \e[0;34mdelete\e[0m.............Delete a radio from the list"
    echo "  \e[0;34mclear\e[0m..............Clear the screen"
    echo "  \e[0;34mquit\e[0m...............Quit program"
    echo ""
    echo "======================================================"
}

display_home() {
    echo "======================================================"
    echo "|                                                    |"
    echo "|     ____            ___            __         ____ |"
    echo "|    / __ \____ _____/ (_)___  _____/ /_  ___  / / / |"
    echo "|   / /_/ / __ \`/ __  / / __ \/ ___/ __ \/ _ \/ / /  |"
    echo "|  / _, _/ /_/ / /_/ / / /_/ (__  ) / / /  __/ / /   |"
    echo "| /_/ |_|\__,_/\__,_/_/\____/____/_/ /_/\___/_/_/    |"
    echo "|                                                    |"
    echo "|                                                    |"
    echo "$(cmd_help)"
}

cmd_exit() {
    exit 1
}

main() {
    cmd_clear

    while true;
    do
        echo ""
        read -p "Enter command > " cmd args
        case $cmd in
            "")               continue;;   # skip empty input lines
            h|help)           cmd_name=help;;
            q|exit|quit)      cmd_name=exit;;
            l|list)           cmd_name=list;;
            p|play)           cmd_name=play;;
            a|add)            cmd_name=add;;
            d|delete)         cmd_name=delete;;
            r|random)         cmd_name=random;;
            c|clear)          cmd_name=clear;;
            *)                echo "\n\e[0;31mCommand doesn't exist. Try 'help'\e[0m" && continue;;
        esac
        cmd_$cmd_name $args
    done
}

main