# cbpp-include.cfg - Variables and functions commonly used in custom scripts for
# CrunchBang GNU/Linux <http://crunchbanglinux.org/>.
# Ported to #!++ <https://crunchbangplusplus.org>
# by Ben Young <computermouth@crunchbangplusplus.org>
# Ported to Manjaro <https://manjaro.github.io/>
# by Daniel Napora <napcok@gmail.com>

# Usage: say text [delayAfterText]
say() {
    fold -s -w 76 <<< "$1" | sed 's/^/  /' # wraps text nicely and adds two leading spaces
    sleep "${2-0}"
}

# Usage: prompt text [Y | N | Q]
prompt() {
    local answer prompt default
    if [[ ${2^} = Q* ]]; then
        #say "$1"
        read -srn1 -p "$1" answer
        echo
        [[ ${answer,} = 'q' ]] && return 0 || return 1
    fi

    if [[ ! $2 || ${2^} = Y* ]]; then
        prompt='Y/n'
        default='Y'
    elif [[ ${2^} = N* ]]; then
        prompt='y/N'
        default='N'
    fi

    while true; do
        read -r -p "$1 [$prompt] " answer

        [[ ! $answer ]] &&
            answer=$default

        if [[ ${answer^} = Y* ]]; then
            say
            return 0
        elif [[ ${answer^} = N* ]]; then
            say
            return 1
        fi
    done
}

# Check the connection by downloading a file from ftp.debian.org. No disk space used.
# Usage: connectiontest [attempts]
# If attempt count is not specified or 0, then it will loop forever and exit(!) your main program with 1 exit status.
connectiontest() {
    local TEXT_CHECKING='Checking internet connection...'
    local TEXT_FAILED='Internet connection test failed!'
    local TEXT_ASK_RETRY=$'\n\nThis script requires a working internet connection. Please configure your internet connection, then hit any key to continue, else hit "q" to quit.'
    local TEXT_ABORT='Script aborted.'
    local TEXT_OK='Internet connection test passed!'

    local -i i attempts=${1-0}
    for (( i=0; i < attempts || attempts == 0; i++ )); do
        say "$TEXT_CHECKING"
        if wget -O - 'http://ftp.debian.org/debian/README' &> /dev/null; then
            say "$TEXT_OK" 1
            return 0
        fi
        say "$TEXT_FAILED"
        if (( i == attempts - 1 )); then # if last attempt
            return 1
        elif prompt "$TEXT_ASK_RETRY" Q; then # if user wants to quit
            say "$TEXT_ABORT" 2
            (( attempts == 0 )) && exit 1 || return 1
        fi
        clear
    done
}

menuStart() {
    echo '    <openbox_pipe_menu>'
}

# Usage: menuItem label command
menuItem() {
    echo "        <item label=\"$1\">"
    echo '            <action name="Execute">'
    echo '                <command>'
    echo "                    $2"
    echo '                </command>'
    echo '            </action>'
    echo '        </item>'
}

# Usage: menuSeparator [label]
menuSeparator() {
    if [[ $1 ]]; then
        echo "        <separator label=\"$1\"/>"
    else
        echo '        <separator/>'
    fi
}

# Usage menuSubmenu id label # http://openbox.org/wiki/Help:Menus
menuSubmenu() {
    echo "    <menu id=\"$1\" label=\"$2\">"
}

menuSubmenuEnd() {
    echo '    </menu>'
}

menuEnd() {
    echo '    </openbox_pipe_menu>'
}

# Usage: promptInstall title description package...
promptInstall() {
    while true; do # Repeat until there are no errors
        if [[ $TRYAGAIN ]]; then # previous try failed
            say
            say "There was a problem installing ${2,,}."
            say
            prompt '  Hit any key to try again, or "q" to quit...' Q && return 1
        fi
        local TRYAGAIN=true

        clear
        say
        say "INSTALL ${1^^}"
        say '------------------------'
        say "This script will install ${2,,}."
        say
        prompt '  Run the installer now?' || return 0

        clear
        connectiontest || continue

        clear
        say 'Updating sources...' 1
        sudo pacman -Syu

        clear
        say 'Installing package...' 1
        sudo pacman -S "${@:3}" || continue

        clear
        say
        say "${2^} has been installed successfully."
        say
        say 'Hit any key to exit...'
        read -srn1
        return 0
    done
}