#!/bin/bash
# Copyfuck © 2010 q
#
# This script installs, updates and runs LOIC on Linux.
#
# Supported distributions:
#    * Ubuntu
#    * Debian
#    * Fedora
#
# Usage: bash ubuntu_loic.bash <install|update|run>
#

GIT_REPO=http://github.com/NewEraCracker/LOIC.git
GIT_BRANCH=master

DEB_MONO_PKG="monodevelop liblog4net-cil-dev"
FED_MONO_PKG="mono-basic mono-devel monodevelop mono-tools"

lower() {
    tr '[A-Z]' '[a-z]'
}

what_distro() {
    if which lsb_release ; then
        echo lsb_release -si | lower
    elif grep -qi ubuntu /etc/*release ; then
        echo "ubuntu"
    elif [[ -e /etc/fedora-release ]] ; then
        echo "fedora"
    else
        # Assume Debian-based
        echo "debian"
    fi
}

DISTRO=$(what_distro)

ensure_git() {
    if ! which git ; then
        if [[ $DISTRO = 'ubuntu' || $DISTRO = 'debian' ]] ; then
            sudo apt-get install git
        elif [[ $DISTRO = 'fedora' ]] ; then
            sudo yum install git
        fi
    fi
}

is_loic() {
    is_loic_git || { [[ -d LOIC ]] && cd LOIC && is_loic_git; }
}

is_loic_git() {
    [[ -d .git ]] && grep -q LOIC .git/config
}

get_loic() {
    ensure_git
    if ! is_loic ; then
        git clone $GIT_REPO -b $GIT_BRANCH
    fi
}

compile_loic() {
    get_loic
    if ! is_loic ; then
        echo "Error: You are not in a LOIC repository."
        exit 1
    fi
    if [[ $DISTRO = 'ubuntu' || $DISTRO = 'debian' ]] ; then
        sudo apt-get install $DEB_MONO_PKGS
    elif [[ $DISTRO = 'fedora' ]] ; then
        sudo yum install $FED_MONO_PKS
    fi
    mdtool build
}

run_loic() {
    is_loic
    if [[ ! -e bin/Debug/LOIC.exe ]] ; then
        compile_loic
    fi
    if ! which mono ; then
        if [[ $DISTRO = 'ubuntu' || $DISTRO = 'debian' ]] ; then
            sudo apt-get install mono-runtime
        elif [[ $DISTRO = 'fedora' ]] ; then
            sudo yum install mono-runtime
        fi
    fi
    mono bin/Debug/LOIC.exe
}

update_loic() {
    ensure_git
    if is_loic ; then
        git pull --rebase
        compile_loic
    else
        echo "Error: You are not in a LOIC repository."
    fi
}

case $1 in
    install)
        compile_loic
        ;;
    update)
        update_loic
        ;;
    run)
        run_loic
        ;;
    *)
        echo "Usage: $0 <install|update|run>"
        ;;
esac