#!/bin/sh

# Harbin Insitute of Technology
# Operating System - Setup Script v0.0.1
#
# $Author$: Deng Xiongfei<dk@hit.edu.cn>
# $Date$: 2014-10-10
export OSLAB_INSTALL_PATH=$HOME/oslab
cat hit.icon
echo "|                 Environment Setup Script v0.0.1                   |"
echo "|                $ \033[34mDeng Xiongfei\033[0m <dk@hit.edu.cn> $                  |"
echo "+-------------------------------------------------------------------+"

install_gcc34_amd64() {
    echo -n "* Install gcc-3.4 for x86_64(amd64) arch now......"
    if [ -z `which gcc-3.4` ]; then
        sudo dpkg -i gcc-3.4/amd64/gcc-3.4-base_3.4.6-8ubuntu2_amd64.deb > /dev/null
        sudo dpkg -i gcc-3.4/amd64/cpp-3.4_3.4.6-8ubuntu2_amd64.deb > /dev/null
        sudo dpkg -i gcc-3.4/amd64/gcc-3.4_3.4.6-8ubuntu2_amd64.deb > /dev/null
        echo "\033[34mDone\033[0m"
    else
        echo "\033[32mSipped\033[0m"
    fi
}

install_gcc34_i386() {
    echo -n "* Install gcc-3.4 for x86(i386) arch now......"
    if [ -z `which gcc-3.4` ]; then
        sudo dpkg -i gcc-3.4/i386/gcc-3.4-base_3.4.6-8ubuntu2_i386.deb > /dev/null
        sudo dpkg -i gcc-3.4/i386/cpp-3.4_3.4.6-8ubuntu2_i386.deb > /dev/null
        sudo dpkg -i gcc-3.4/i386/gcc-3.4_3.4.6-8ubuntu2_i386.deb > /dev/null
        echo "\033[34mDone\033[0m"
    else
        echo "\033[33mSkipped\033[0m"
    fi
}

install_dep_i386() {
    echo "* Install dependencies for x86(i386) arch now......"
    sudo apt-get install bin86
    sudo apt-get install build-essential
    echo "* Install dependencies for x86(i386) arch now......\033[34mDone\033[0m"
}

install_dep_amd64() {
    echo "* Install dependencies for x86_64(amd64) arch now......"
    sudo apt-get install bin86
    sudo apt-get install gcc-multilib
    sudo apt-get install build-essential
    sudo apt-get install bochs bochs-x bochs-sdl
    echo "* Install dependencies for x86_64(amd64) arch now......\033[34mDone\033[0m"
}

configure_for_i386() {
    echo -n "* Copy rest files to oslab......"
    cp -r i386/* $OSLAB_INSTALL_PATH
    echo "\033[34mDone\033[0m"
}

configure_for_amd64() {
    # 64-bit version bochs has to show in sdl mode, bochs-sdl required
    echo -n "* Change bochs:display_library into sdl......"
    echo "display_library: sdl" >> $OSLAB_INSTALL_PATH/bochs/bochsrc.bxrc
    echo "\033[34mDone\033[0m"

    echo -n "* Copy run script to oslab......"
    cp -r amd64/* $OSLAB_INSTALL_PATH
    echo "\033[34mDone\033[0m"
}

# Common Code
if [ "$1" ] && ([ "$1" = "-s" ] || [ "$1" = "--skip-update" ]); then
    echo -n "* Begin to setup......\033[33m3\033[0m sec to start"; sleep 1
    echo -n "\r* Begin to setup......\033[33m2\033[0m sec to start"; sleep 1
    echo -n "\r* Begin to setup......\033[33m1\033[0m sec to start"; sleep 1
    echo "\r* Begin to setup......                                 \033[0m"
else
    echo -n "* Update apt sources......\033[33m3\033[31m sec to start"; sleep 1
    echo -n "\r* Update apt sources......\033[33m2\033[31m sec to start"; sleep 1
    echo -n "\r* Update apt sources......\033[33m1\033[31m sec to start"; sleep 1
    echo "\r* Update apt sources......                                 "
    sudo apt-get update
fi

echo -n "* Create oslab main directory......"
[ -d $OSLAB_INSTALL_PATH ] || mkdir $OSLAB_INSTALL_PATH
echo "\033[34mDone\033[0m"

echo -n "* Create linux-0.11 directory......"
[ -d $OSLAB_INSTALL_PATH/linux-0.11 ] || mkdir $OSLAB_INSTALL_PATH/linux-0.11
echo "\033[34mDone\033[0m"

# Extract linux-0.11
echo -n "* Extract linux-0.11......"
tar zxf common/linux-0.11.tar.gz -C $OSLAB_INSTALL_PATH/linux-0.11
cp common/linux-0.11.tar.gz $OSLAB_INSTALL_PATH
echo "\033[34mDone\033[0m"

# Extract bochs and hdc image
echo -n "* Extract bochs configuration file and hdc image......"
tar zxf common/bochs-and-hdc.tar.gz -C $OSLAB_INSTALL_PATH/
echo "\033[34mDone\033[0m"

# Copy common files
echo -n "* Copy common files......"
cp -r common/files $OSLAB_INSTALL_PATH
echo "\033[034mDone\033[0m"

# `getconf LONG_BIT` works better than `uname -a`
if [ `getconf LONG_BIT` = "64" ]
then
    install_dep_amd64
    install_gcc34_amd64
    configure_for_amd64
else
    install_dep_i386
    install_gcc34_i386
    configure_for_i386
fi

echo "\033[34m* Installation finished. Ciao~\033[0m"