#! /bin/bash
# Fg42 - Emacs Editor for advance users
#
# Copyright (c) 2010-2022 Sameer Rahmani <lxsameer@gnu.org>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

set -e

current=$(cd "$(dirname "$0")/." >/dev/null 2>&1 ; pwd -P)
fg42_home="$current/.."

# Coloring Functions
info() {
    if [ "$1" ]
    then
        echo "[\033[01;32mINFO\033[00m]: $1"
    fi
}

error() {
    if [ "$1" ]
    then
        echo "[\033[01;31mERR\033[00m]: $1"
    fi
}

warn() {
    if [ "$1" ]
    then
        echo "[\033[01;33mWARN\033[00m]: $1"
    fi
}

install_fonts() {
    info "Downloading and installing fonts..."
    mkdir -p ~/.fonts
    wget "https://dl.fg42.org/fonts/0.1.0.tar.gz" -O ~/.fonts/fg42.tar.gz
    tar zxf ~/.fonts/fg42.tar.gz -C ~/.fonts --strip 1

    cp -r "$fg42_home/share/fonts/vazir/*" ~/.fonts/
    info "Font installation is done."
}

install_runners() {
    info "Creating the runner scripts..."
    cp "$current/templates/fg42" "$current/../fg42"
    cp "$current/templates/fg42-wm" "$current/../fg42-wm"

    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
        sed -i "s'___FG42_HOME___'$fg42_home'" "$fg42_home/fg42"
        sed -i "s'___FG42_HOME___'$fg42_home'" "$fg42_home/fg42-wm"
    fi

    if [[ "$OSTYPE" == "darwin"* ]]; then
        sed -i'' -e "s'___FG42_HOME___'$fg42_home'" "$fg42_home/fg42"
        sed -i'' -e "s'___FG42_HOME___'$fg42_home'" "$fg42_home/fg42-wm"
    fi

    chmod +x "$fg42_home/fg42"
    chmod +x" $fg42_home/fg42-wm"

    info "Copying conifg file to ~/.fg42.el..."
    cp "$fg42_home/config/fg42.user.el" ~/.fg42.el

    info "Installing the runners..."

    sudo mkdir -p /usr/local/bin/
    sudo rm -f /usr/local/bin/fg42
    sudo rm -f /usr/local/bin/fg42-wm
    sudo ln -s "$fg42_home/fg42" /usr/local/bin/fg42
    sudo ln -s "$fg42_home/fg42-wm" /usr/local/bin/fg42-wm

    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
        info "Copying share files..."
        sudo mkdir -p /usr/share/fg42/
        sudo mkdir -p /usr/local/share/applications
        sudo cp "$fg42_home/share/applications/fg42.desktop" /usr/local/share/applications
        sudo cp -r "$fg42_home/share/icons/hicolor/" /usr/local/share/icons
        sudo cp -r "$fg42_home/share/*" /usr/share/fg42/
        sudo mkdir -p /usr/share/xsessions/
        sudo cp -r "$fg42_home/share/xsessions/fg42.desktop" /usr/share/xsessions/
    else
        info "Skipping share files since this is not a Linux env..."
    fi
}

install_extras() {
    if [[ "$OSTYPE" == "linux-gnu"* ]]; then
        info "Copying share files..."
        sudo mkdir -p /usr/share/fg42/
        sudo cp "$fg42_home/share/applications/fg42.desktop" /usr/local/share/applications
        sudo cp -r "$fg42_home/share/icons/hicolor/" /usr/local/share/icons
        sudo cp -r "$fg42_home/share/*" /usr/share/fg42/
        sudo cp -r "$fg42_home/share/xsessions/fg42.desktop" /usr/share/xsessions/
    else
        info "Skipping share files since this is not a Linux env..."
    fi

}

eval "install_$1"