#!/bin/bash

set -e
ROOT=$(readlink -f $(dirname "${BASH_SOURCE[0]}"))
PM=n/a
DEFAULT_SHELL=$(getent passwd $USER | cut -d: -f7)
FISH=$(which fish)

if which pacman > /dev/null; then
    PM=pacman
elif which apt > /dev/null; then
    PM=apt
fi

if [ "$PM" = "n/a" ]; then
    echo "Unsupported Package Manager"
    exit -1
fi

in-china () {
    if [ -z "$IS_CHINA" ]; then
        IS_CHINA=no
        if curl -q myip.ipip.net | grep '中国' > /dev/null; then
            IS_CHINA=yes
        fi
    fi
    [ "$IS_CHINA" = "no" ] && return -1
    return 0
}

lnsf () {
    [ "$#" -ne 2 ] && echo "lnsf <src> <symlink>"
    [ ! -L "$2" ] && rm -rf $2
    SYM_DIR=$(dirname $2)
    if [ -n "$SYM_DIR" ]; then
        [ ! -d "$SYM_DIR" ] && rm -rf "$SYM_DIR"
        mkdir -p "$SYM_DIR"
    fi
    ln -sf $1 $2
}

fish-is-default-shell () {
    [ "$DEFAULT_SHELL" = "$FISH" ]
}

has-bluetooth () {
    dmesg | grep -i bluetooth
}


# install basic common utilities
case "$PM" in
    apt)
        sudo apt install \
            build-essential \
            unzip p7zip \
            openssh-server openssh-client \
            exfat-utils \
            axel \
            man sudo
        ;;
    pacman)
        sudo pacman -S --needed --needed \
            base-devel \
            unzip p7zip \
            openssh \
            exfat-utils \
            axel \
            man sudo
        ;;
esac