#!/bin/sh -e

installtarget=/usr/local/bin
bunkchatrepo=https://git.bunk.computer/bunk/bunkchat.git

missingtmux() {
    echo
    echo 'ERROR: tmux not found in $PATH'
    echo '       please install tmux or add it to $PATH'
    exit 1
}

missinggit() {
    echo
    echo 'ERROR: git not found in $PATH'
    echo '       please install git or add it to $PATH'
    exit 1
}

# check for tmux and cowsay
# if not prompt and exit
checkdeps() {
    which tmux 1>/dev/null || missingtmux
    which git 1>/dev/null || git
    echo
    echo 'deps located'
}

clonebunkchat() {
    echo "cloning bunkchat repo"
    git clone $bunkchatrepo
}

# if not found prompt for git clone or exit
prompttoclone() {
    echo
    echo "INFO: could not locate bunkchat scripts"
    echo
    printf "install bunkchat? (Y/n): "
    read -r response
    case $response in
        n)
            echo "exiting bunkchat install"
            exit 0
            ;;
        y)
            clonebunkchat
            ;;
        "")
            clonebunkchat
            ;;
        *)
            prompttoclone
            ;;
    esac
}

installbunkchat() {
    (cd ../bunkchat && ./install.sh)
}

missingbunkchat() {
    echo "bunk chat not installed"
    # check for bunkchat repo in parent dir
    needclone=1
    for f in ./*
    do
        case $f in
            bunkchat)
                needclone=0
                break
                ;;
        esac
    done
    if [ $needclone == 1 ] ; then
        prompttoclone
    fi
    # run bunkchat install script
    installbunkchat
}

# check for installed bunkchat && continue
checkbunkchat() {
    which heed 1>/dev/null || missingbunkchat
    which proclaim 1>/dev/null || missingbunkchat
    which scry 1>/dev/null || missingbunkchat
}

# install buckdeck in /usr/local/bin
installbunkdeck() {
    echo "installing bunkchat"
    cp bunkdeck $installtarget
    chmod 755 ${installtarget}/bunkdeck
    chown root:root ${installtarget}/bunkdeck
    echo
    echo "SUCCESS! bunkdeck installed!"
}

infocron() {
    echo
    echo "INFO: bunkdeck comes with a script to clear chat history"
    echo "      if you would  like to enable this copy the script to crontab scripts"
    echo "      and enable a cron for your desired cadence"
    echo
    echo "# cp delete.sh /root/crontab-scripts/delete-bunkchat.sh"
    echo "# crontab -u root -e"
    echo "# EXAMPLE FOR WEEKLY HISTORY DELETION"
    echo "0 0 * * 6 /root/crontab-scripts/delete-bunkchat.sh"
}

# check for root perms
if ! [ "$(id -u)" = 0 ]; then
    echo
    echo "ERROR: please run install with root permissions"
    exit 1
fi

checkdeps
checkbunkchat
installbunkdeck
infocron
exit 0