install

#!/usr/bin/env bash

log=$(mktemp)
here=$(readlink -f $(dirname $0))

# Handlers
die() {
    echo "Error: $1" >&2
    echo "See logfile $log" >&2
    exit 1
}

info_() {
    echo "$1" >&2
}

info_ "Writing logfile $log"v

# Checks
[ -x /bin/zsh ] || die "Please install zsh"
sudo -v &>/dev/null || die "Please make sure you have sudo"

install_pacman_packages() {
    info_ "Installing pacman packages"
    file=$(mktemp)
    url=https://gist.githubusercontent.com/simonvpe/7025b1c75e6d310ec305b1fb380d8509/raw/
    curl "$url" -o "$file" &>>$log
    sudo pacman -S --needed &>>$log - < "$file"
}
install_pacman_packages

install_pacaur_packages() {
    info_ "Installing pacaur packages"
    file=$(mktemp)
    url=https://gist.githubusercontent.com/simonvpe/556352c06c14f0753f4a7df7ad9090a6/raw
    curl "$url" -o "$file" &>>$log
    xargs < "$file" sudo pacaur -S --noedit --needed &>>$log
}
install_pacaur_packages

# Configure the shell to be zsh
shell=$(getent passwd $LOGNAME |cut -d: -f7)
if [[ "$shell" != "/bin/zsh" ]]; then
    info_ "Configuring user shell to be zsh"
    sudo usermod -s /bin/zsh $(id -un) &>>$log || die "Failed to set user shell"
fi

# Create a temp dir to work in
tmp=$(mktemp -d)
[[ "$?" == "0" ]] && cd "$tmp" || die "Failed to create temp directory"

install_oh_my_zsh() {
    info_ "Installing oh-my-zsh"
    git clone http://github.com/simonvpe/oh-my-zsh &>>$log && cd oh-my-zsh &>>$log \
	    || die "Failed to clone oh-my-zsh"

    rm -rf ~/.zshrc ~/.oh-my-zsh &>>$log

    export SHELL=/bin/zsh && zsh ./tools/install.sh 0>&- 1>>$log 2>>$log || die "Failed to install zsh"
}
[ -f ~/.zshrc ] && info_ "oh-my-zsh seems to be installed already" || install_oh_my_zsh

install_asdf() {
    info_ "Installing asdf"
    git clone https://github.com/asdf-vm/asdf.git ~/.asdf --branch v0.4.0 &>>$log \
	|| die "Failed to install asdf"
}
asdf --version >/dev/null && info_ "asdf seems to be installed already" || install_asdf

activate_asdf_bash() {
    info "Activating asdf for bash"
    echo -e '\n. $HOME/.asdf/asdf.sh' >> ~/.bashrc
    echo -e '\n. $HOME/.asdf/completions/asdf.bash' >> ~/.bashrc
    . $HOME/.asdf/asdf.sh &>>$log
    . $HOME/.asdf/completions/asdf.bash &>>$log
}
grep -q '. $HOME/.asdf/asdf.sh' ~/.bashrc || activate_asdf_bash

activate_asdf_zsh() {
    info "Activating asdf for zsh"
    echo -e '\n. $HOME/.asdf/asdf.sh' >> ~/.zshrc
    echo -e '\n. $HOME/.asdf/completions/asdf.bash' >> ~/.zshrc
    . $HOME/.asdf/asdf.sh &>>$log
    . $HOME/.asdf/completions/asdf.bash &>>$log
}
grep -q '. $HOME/.asdf/asdf.sh' ~/.zshrc || activate_asdf_zsh

install_ruby_plugin() {
    info_ "Installing ruby plugin"
    asdf plugin-add ruby &>>$log
}
asdf plugin-list | grep -q ruby && info_ "ruby plugin already installed" || install_ruby_plugin

install_ruby() {
   info_ "Installing ruby"
   version="$(asdf list-all ruby | grep ^[0-9.]*$ | tail -n1)"
   asdf install ruby "$version" &>>$log || die "Failed to install ruby"
   asdf global ruby "$version" &>>$log
   . ~/.bashrc
}
asdf list ruby >/dev/null && info_ "ruby is already installed" || install_ruby
    
# Install ruby packages
gemfile="${here}/gems"
install_ruby_gems() {
    info_ "Installing ruby gems"
    cat "$gemfile"  | while read x; do
	gem list | grep "$x" >/dev/null && info_ "$x seems to be installed ready" && continue
	info_ "Installing ruby gem $x"
	gem install "$x" &>>$log || die "Failed to install gem $x"
    done
}
[ -f "$gemfile" ] && install_ruby_gems || info_ "$gemfile does not exist"

install_python_plugin() {
    info_ "Installing python plugin"
    asdf plugin-add python &>>$log
}
asdf plugin-list | grep -q python && info_ "python plugin already installed" || install_python_plugin

install_python27() {
    info_ "Installing python27"
    version="$(asdf list-all python|grep ^2.7|tail -n1)"
    asdf install python "$version" &>>$log || die "Failed to install python27"
    asdf global python "$version" &>>$log
    . ~/.bashrc
}
asdf list python | grep -q ^2.7 && info_ "python27 is already installed" || install_python27

install_python36() {
    info_ "Installing python36"
    version="$(asdf list-all python|grep ^3.6|tail -n1)"
    asdf install python "$version" &>>$log || die "Failed to install python36"
    asdf global python "$version" &>>$log
    . ~/.bashrc
}
asdf list python | grep -q ^3.6 && info_ "python36 is already installed" || install_python36