#!/usr/bin/env bash
#
# IEs 4 Linux/Mac
# Developed by: Sergio Luis Lopes Junior <slopes at gmail dot com>
# Projects sites: 
#	http://tatanka.com.br/ies4linux
#	http://tatanka.com.br/ies4mac
#
# Released under the GNU GPL. See LICENSE for more information

# Discover the script installation folder
SCRIPTDIR=`dirname "$0"`
cd "$SCRIPTDIR"
export SCRIPTDIR=`pwd`

# Where are we running?
for p in "$SCRIPTDIR"/platforms/*; do
	if "$p"/identify-platform; then
		export PLATFORMDIR="$p"
	fi
done
[ "$PLATFORMDIR" = "" ] && echo Not a valid platform && exit 1

# Import functions ($1 filename)
function load_function_file {
	# Export all functions so subshells can access them
	. "$1"
	for fn in $(grep "^function" "$1" | sed -e 's/function[[:space:]]*//g;s/{//g'); do
		export -f $fn
	done
}

# Load all needed functions
for f in "$SCRIPTDIR"/lib/functions/*.sh; do
	load_function_file "$f"
done
load_function_file "$PLATFORMDIR"/functions.sh

### Init variables
export INSTALLIE7=0
export INSTALLIE6=1
export INSTALLIE55=0
export INSTALLIE5=0
export INSTALLIE2=0
export INSTALLIE15=0
export INSTALLIE1=0

export INSTALLFLASH=1
export INSTALLCOREFONTS=0

export IE6_LOCALE="EN-US"
export IE6_LOCALES="AR CN CS DA DE EL EN-US ES FI FR HE HU IT JA KO NL NO PL PT PT-BR RU SV TR TW"
export NOCOLOR=0

# Default places for most platforms (not for Mac)
export CREATE_DESKTOP_ICON=1
export CREATE_MENU_ICON=0
export BASEDIR="$HOME/.ies4linux"
export BINDIR="$HOME/bin"
export WGETFLAGS="-c "
export DOWNLOADDIR_SUFFIX="downloads"
export DOWNLOADDIR="$BASEDIR/$DOWNLOADDIR_SUFFIX"

# Someone can override some variables
init_variables

### Configure options ###

# Get command-line options
while [ $# -gt 0 ]; do
	case "$1" in
	--install-ie6 | --install-flash| --create-desktop-icons)   shift;;
	--install-ie55)     export INSTALLIE55=1;   shift ;;
	--install-ie5)      export INSTALLIE5=1;    shift ;;
	--install-ie2)      export INSTALLIE2=1;    shift ;;
	--install-ie15)     export INSTALLIE15=1;    shift ;;
	--install-ie1)      export INSTALLIE1=1;    shift ;;

	--install-ie7|--beta-install-ie7) export INSTALLIE7=1;    shift ;;
	--hack-ie7-proxy-settings)        export HACK_IE7_PROXY=1; shift ;;

	--no-ie6)           export INSTALLIE6=0;   shift ;;
	--no-flash)         export INSTALLFLASH=0;  shift ;;
	--no-desktop-icon)  export CREATE_DESKTOP_ICON=0;   shift ;;
	--no-menu-icon)     export CREATE_MENU_ICON=0;   shift ;;
	--install-corefonts) export INSTALLCOREFONTS=1; shift ;;
	
	--base-dir)          export BASEDIR="$2";     shift 2 ;;
	--bin-dir)           export BINDIR="$2";      shift 2 ;;
	--download-dir)	    export DOWNLOADDIR="$2"; changeddownloaddir=1; shift 2 ;;
	--wget-flags)       export WGETFLAGS="$2";   shift 2 ;;
	
	--no-color)	    export NOCOLOR=1;        shift 1 ;;
	--locale)
		export IE6_LOCALE=$(echo "$2" | tr a-z A-Z)
		echo " $IE6_LOCALES " | grep " $IE6_LOCALE " &> /dev/null || error Invalid locale! Please run IEs4Linux again and choose a valid one.
		shift 2
		;;
	--list-locales)
		echo $IE6_LOCALES | fmt -w 40
		exit 0
		;;
	--debug)
		export DEBUG=true
		shift
		;;
	--help | -h)
		sh lib/help.sh
		exit 0
		;;
	--full-help)
		sh lib/help.sh full
		exit 0
		;;	
	*)
		echo "Error: unknown option \"$1\""
		if echo "$1" | grep '=' >/dev/null; then
			echo "Options are not GNU-style"
			echo "  i.e. don't use: --option=value"
			echo "     use instead: --option value"
		fi
		echo "run \"./ies4linux --help\" for more info"
		exit 1
		;;
	esac
done

# Hack for downloaddir
if [ "$changeddownloaddir" != "1" ]; then
	DOWNLOADDIR="$BASEDIR/$DOWNLOADDIR_SUFFIX"
fi

# See if user chose at least one IE
if [ "$((INSTALLIE6+INSTALLIE55+INSTALLIE5+INSTALLIE7+INSTALLIE1+INSTALLIE2+INSTALLIE15))" = "0" ]; then
	error Please choose at least one IE version to install
fi

# Initialize tmp dir
export TMPDIR="$BASEDIR/tmp/"
mkdir -p "$TMPDIR" || error Needs $TMPDIR for temporary files

# Check dependencies for wine, cabextract, wget, unzip
find_wine
find_cabextract
find_download_program
find_unzip

# TODO add sudo warning too
# Check for root
[ "$(whoami)" = "root" ] && warning "You are root! This is very discouraged! IE is too insecure for you to give him root access.\nWant a tip from a friend? Run ies4linux as your normal user or, what's better, if you can, create a separate user just to handle your IEs."

### Run installer ###
bash "$SCRIPTDIR"/lib/install.sh

# Remove temp dir
rm -rf "$TMPDIR"