#!/bin/bash
#
#  scratchpkg
#
#  Copyright (c) 2018 by Emmett1  (emmett1.2miligrams@gmail.com)
#
#  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, either version 3 of the License, or
#  (at your option) any later version.
#
#  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 <https://www.gnu.org/licenses/>.
#

RED='\e[0;31m'
GREEN='\e[0;32m'
YELLOW='\e[0;33m'
CYAN='\e[0;36m'
PURPLE='\e[0;35m'
CRESET='\e[0m'

msg() {
	echo -e "${GREEN}==>${CRESET} $1"
}

msgerr() {
	echo -e "${RED}==> ERROR:${CRESET} $1"
}

msginst() {
	echo -e "[${GREEN}i${CRESET}] $1"
}

msgmiss() {
	echo -e "[${YELLOW}m${CRESET}] $1"
}

msgnoinst() {
	echo -e "[ ] $1"
}

msgwarn() {
	echo -e "${YELLOW}==> WARNING:${CRESET} $1"
}

needroot() {	
	if [ $UID != 0 ]; then
		if [ "$#" -eq 0 ]; then
			needroot "This operation"
		else
			msgerr "$@ need root access!"
		fi
		exit 1
	fi	
}

getportpath() {	
	for repo in ${PORT_REPO[@]}; do
		if [[ -f $repo/$1/$BUILD_SCRIPT ]]; then
			echo "$(dirname $repo/$1/$BUILD_SCRIPT)"
			return 0
		fi
	done
	return 1	
}

pushd() {
	command pushd $1 &>/dev/null
}

popd() {
	command popd &>/dev/null
}

vercomp() {	
	if [ "$1" = "$2" ]; then
		return 0 # same version
	elif [ "$1" = "$(echo -e "$1\n$2" | sort -V | head -n1)" ]; then
		return 1 # $1 lower than $2
	else
		return 2 # $1 higher than $2
	fi
}

installed_pkg_info() {	
	if isinstalled $2; then
		echo $(cat $INDEX_DIR/$2/.pkginfo | grep ^$1 | cut -d " " -f3-)
	fi
}

allinstalled() {	
	for i in $INDEX_DIR/*; do
		if isinstalled ${i##*/}; then
			echo ${i##*/}
		fi
	done
}

confirm() {
	read -r -p "$1 (Y/n) " response
	case "$response" in
		[Nn][Oo]|[Nn]) echo "$2"; exit 2 ;;
		*) : ;;
	esac
}

checktool() {	
	if ! type -p $1 &>/dev/null; then
		msgerr "'$1' not exist in your system!"
		exit 1
	fi	
}

needarg() {
	if [[ -z "$@" ]]; then
		msgerr "This operation required an arguments!"
		exit 1
	fi
}

catport() {	
	if PPATH=$(getportpath "$1"); then
		cat "$PPATH/$BUILD_SCRIPT"
	else
		msgerr "Port '$1' not exist."
		exit 1
	fi
}

isinstalled() {
	if [ -s $INDEX_DIR/$1/.pkginfo ] && [[ $(grep $1 $INDEX_DIR/$1/.pkginfo) ]]; then
		return 0
	else
		return 1
	fi
}

settermtitle() {
	echo -en "\033]0;$@\a"
}

missingdep() {
	local pkg d
	
	for pkg in $(allinstalled); do
		if [ $(getportpath "$pkg") ]; then
			depends=$(grep "^# depends[[:blank:]]*:" $(getportpath "$pkg")/$BUILD_SCRIPT | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//' | tr ' ' '\n' | awk '!a[$0]++')
		fi
		if [ "$depends" ]; then
			for d in ${depends[@]}; do
				if ! isinstalled $d; then
					msd+=($d)
				fi
			done
		fi
		if [ ${#msd[@]} -gt 0 ]; then
			echo -e "${GREEN}$pkg${CRESET} missing ${RED}${msd[@]}${CRESET}"
		fi
		unset depends msd
	done
}

checkintegrity() {
	if [ "$1" ]; then
		pushd /
			if [ -f $INDEX_DIR/$1/.files ]; then
				while IFS=' ' read -r line; do
					if [ ! -e "$line" ]; then
						MISSING_FILE=yes
						if [ -L "$line" ]; then
							echo -e "${YELLOW}broken symlink${CRESET} $1: /$line"
						else
							echo -e "${RED}file missing${CRESET} $1: /$line"
						fi
					fi
				done < <(cat $INDEX_DIR/$1/.files)
			else
				echo "Package '$1' not installed."
				exit 1
			fi
		popd
	else
		pushd /
			for pkg in $(allinstalled); do
				while IFS=' ' read -r line; do
					if [ ! -e "$line" ]; then
						MISSING_FILE=yes
						if [ -L "$line" ]; then
							echo -e "${YELLOW}broken symlink${CRESET} $pkg: /$line"
						else
							echo -e "${RED}file missing${CRESET} $pkg: /$line"
						fi
					fi
				done < <(cat $INDEX_DIR/$pkg/.files)
			done
		popd
	fi
	
	[ "$UID" != "0" ] && msg "${YELLOW}(check integrity is recommended run as root or using sudo)${CRESET}"
	if [ "$1" ]; then
		p="Package '$1'"
	else
		p="Your system"
	fi
	[ ! "$MISSING_FILE" ] && msg "$p files is consistent with package tree."
}

listinstalled() {
	local pkg	
	for pkg in $(allinstalled); do
		iname=$(installed_pkg_info name $pkg)
		iversion=$(installed_pkg_info version $pkg)
		irelease=$(installed_pkg_info release $pkg)
		echo -e "$iname ${GREEN}$iversion${CRESET}-${BLUE}$irelease${CRESET}"
		unset iname iversion irelease
	done	
}

listorphan() {
	local pkg all depends deps
	
	for pkg in $(allinstalled); do
		if [ $(getportpath $pkg) ]; then
			depends=$(grep "^# depends[[:blank:]]*:" $(getportpath $pkg)/$BUILD_SCRIPT | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//' | tr ' ' '\n' | awk '!a[$0]++')
		fi
		for deps in ${depends[@]}; do
			ALL_DEP+=($deps)
		done
	done
	
	# find orphan package
	for all in $(allinstalled); do
		ORPHAN=yes
		for depended in ${ALL_DEP[@]}; do
			if [ $depended = $all ]; then
				ORPHAN=no
				break
			fi
		done
		if [ "$ORPHAN" = yes ]; then
			iname=$(installed_pkg_info name $all)
			iversion=$(installed_pkg_info version $all)
			irelease=$(installed_pkg_info release $all)
			echo -e "$iname ${GREEN}$iversion${CRESET}-${BLUE}$irelease${CRESET}"
		fi
	done	
}

lockpkg() {
	local pkg
	
	needroot "Locking package"
	
	for pkg in "$@"; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' is not installed."
		elif [ -f $INDEX_DIR/$pkg/.lock ]; then
			msgerr "Package '$pkg' already locked."
		else
			touch $INDEX_DIR/$pkg/.lock && msg "Successfully locked package '$pkg'."
		fi
	done	
}

unlockpkg() {
	local pkg
	
	needroot "Unlocking package"
	
	for pkg in "$@"; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' is not installed."
		elif [ ! -f $INDEX_DIR/$pkg/.lock ]; then
			msgerr "Package '$pkg' is not locked."
		else
			rm -f $INDEX_DIR/$pkg/.lock && msg "Successfully unlocked package '$pkg'."
		fi
	done	
}

listlocked() {
	local pkg
	
	for pkg in $(allinstalled); do
		if [ -f "$INDEX_DIR"/$pkg/.lock ]; then
			echo -e "$pkg"
		fi
	done
}

showdepends() {
	local dep
	
	if [ $(getportpath "$1") ]; then
		depends=$(grep "^# depends[[:blank:]]*:" $(getportpath "$1")/$BUILD_SCRIPT | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//' | tr ' ' '\n' | awk '!a[$0]++')
	else
		msgerr "Port '$1' not exist."
		exit 1
	fi
			#isinstalled ${depends[0]}
	for dep in ${depends[@]}; do
		if isinstalled $dep; then
			msginst "$dep"
		elif getportpath $dep >/dev/null; then
			msgnoinst "$dep"
		else
			msgmiss "$dep"
		fi
	done
}	

showdependent() {
	local port all dep pname
	
	for port in ${PORT_REPO[@]}; do
		if [ -d $port ]; then
			for all in $port/*/$BUILD_SCRIPT; do
				depend=$(grep "^# depends[[:blank:]]*:" $all | sed 's/^# depends[[:blank:]]*:[[:blank:]]*//' | tr ' ' '\n' | awk '!a[$0]++')
				for dep in ${depend[@]}; do
					if [ $dep = $1 ]; then
						GDP=yes
						pname=$(dirname $all)
						pname=$(echo ${pname##*/})
						if isinstalled $pname; then
							msginst "$pname"
						else
							msgnoinst "$pname"
						fi
					fi
				done
			done
		fi
	done
	
	[ "$GDP" ] || msg "No package depends on '$1'."
}

checkowner() {
	local arg
	arg=$(echo $1 | sed 's:^/::')
	for pkg in $(allinstalled); do
		grep $arg $INDEX_DIR/$pkg/.files | while read line; do
			echo -e "${CYAN}$pkg${CRESET} => ${PURPLE}$line${CRESET}"
		done
	done
}

showtree() {	
	if ! isinstalled $1; then
		msg "Package'$1' not installed."
	else
		while IFS=' ' read -r line; do
			echo "$line"
		done < <(cat $INDEX_DIR/$1/.files)
	fi	
}

updports() {	
	checktool httpup
	
	needroot "Updating ports"
	
	if [ ! -e "$REPO_FILE" ]; then
		msgerr "Repo file not found! ($REPO_FILE)"
		exit 1
	fi

	while read repodir repourl junk; do
		case $repodir in
			""|"#"*) continue ;;
		esac
		if [ -n "$repodir" ] && [ -n "$repourl" ]; then
			httpup sync $repourl $repodir
		fi
	done < "$REPO_FILE"
}

printreadme() {
	needarg $@
	
	if PPATH=$(getportpath "$1"); then
		if [ -f "$PPATH/readme" ]; then
			cat "$PPATH/readme"
		else
			msgerr "Port '$1' does not have readme."
		fi
	else
		msgerr "Port '$1' not exist."
		exit 1
	fi
}

searchpkg() {
	needarg $@
	
	case $1 in
		-*) msgerr "Invalid pattern '$1'"
			return 1 ;;
	esac
	
	local port found OUTPUT
	
	for port in ${PORT_REPO[@]}; do
		if [ -d $port ]; then
			pushd $port
				OUTPUT=$(grep -R description | grep "$BUILD_SCRIPT:# description[[:blank:]]*:" | sed "s/$BUILD_SCRIPT:# description[[:blank:]]*://" | grep -i "$1" | cut -d '/' -f1)
			popd
			if [ -n "$OUTPUT" ]; then
				found=yes
				for out in ${OUTPUT[@]}; do
					if [ -f $port/$out/$BUILD_SCRIPT ]; then
						pushd $port/$out
							description=$(grep "^# description[[:blank:]]*:" $BUILD_SCRIPT | sed 's/^# description[[:blank:]]*:[[:blank:]]*//')
							. $BUILD_SCRIPT
						popd
						if [ ! -z "$name" ] && [ ! -z "$version" ] && [ ! -z "$release" ]; then
							portname=$(basename $port)
							search_result="${PURPLE}($portname)${CRESET} $name ${CYAN}$version-$release${CRESET} $description"
							if isinstalled $name; then
								echo -e "[${GREEN}*${CRESET}] $search_result"
							else
								echo -e "[ ] $search_result"
							fi
							unset description name version release
						fi
					fi
				done
			fi
		fi
	done
	if [ ! "$found" ]; then
		msg "No matching package found."
	fi
}

foreignpkg() {
	
	for pkg in $(allinstalled); do
		if ! getportpath $pkg >/dev/null; then
			iname=$(installed_pkg_info name $pkg)
			iversion=$(installed_pkg_info version $pkg)
			irelease=$(installed_pkg_info release $pkg)
			echo -e "$iname ${GREEN}$iversion${CRESET}-${CYAN}$irelease${CRESET}"
		fi
		unset iname iversion irelease
	done
	
}

srunhooks() {
	local hook
	if [ "$mode" = "upgrade" ] || [ "$mode" = "sysup" ]; then
		opr=upgrade
	else
		opr=install
	fi
	
	for hook in $HOOK_DIR/*.hook; do
		[ -f $hook ] || continue
		description=$(grep "^# description[[:blank:]]*:" $hook | sed 's/^# description[[:blank:]]*:[[:blank:]]*//')
		operation=$(grep "^# operation[[:blank:]]*:" $hook | sed 's/^# operation[[:blank:]]*:[[:blank:]]*//')
		target=$(grep "^# target[[:blank:]]*:" $hook | sed 's/^# target[[:blank:]]*:[[:blank:]]*//')
		if [ -n "$description" ] && [ -n "$operation" ] && [ -n "$target" ]; then
			if [ "$(echo $operation | grep -w "$opr" )" ]; then
				for pn in $@; do
					if [ -s $INDEX_DIR/$pn/.files ] && [ "$(grep $target $INDEX_DIR/$pn/.files)" ]; then
						[ "$ee" != 1 ] && { echo; ee=1; }
						echo "$description"
						. $hook
						if [ "`type -t exechook`" = "function" ]; then
							exechook
						fi
					break
					fi
				done
			fi
		fi
		unset description operation target
		unset -f exechook
	done	
}

srunremovehooks() {
	local hook
	if [ "${#runthishook[@]}" -gt 0 ]; then
	echo
		for hook in ${runthishook[@]}; do
			description=$(cat "$hook" | grep ^"# description" | sed 's/\://' | cut -d ' ' -f 3-)
			operation=$(cat "$hook" | grep ^"# operation" | sed 's/\://' | cut -d ' ' -f 3-)
			target=$(cat "$hook" | grep ^"# target" | sed 's/\://' | cut -d ' ' -f 3-)
			if [ -n "$description" ] && [ -n "$operation" ] && [ -n "$target" ]; then
				echo "$description"
				. $hook
				if [ "`type -t exechook`" = "function" ]; then
					exechook
				fi
			fi
			unset description operation target
			unset -f exechook
		done
	fi	
}

srunpreremovehooks() {
	local hook
	for hook in $HOOK_DIR/*.hook; do
		[ -f $hook ] || continue
		operation=$(cat "$hook" | grep ^"# operation" | sed 's/\://' | cut -d ' ' -f 3-)
		target=$(cat "$hook" | grep ^"# target" | sed 's/\://' | cut -d ' ' -f 3-)
		if [ "$(echo $operation | grep -w "remove" )" ]; then
			if [ "$(grep $target $INDEX_DIR/$1/.files)" ]; then
				if [ ! $(echo ${runthishook[@]} | tr ' ' '\n' | grep -x $hook) ]; then
					runthishook+=($hook)
				fi
			fi
		fi
		unset operation target
	done	
}

buildpkg() {
	local OPTS
	if [ -z "$1" ]; then
		echo "Please specify package to build."
		return 1
	fi
	while [ "$1" ]; do
		if [[ "$1" =~ ^-(f|v|w|m|o|x)$ ]]; then
			OPTS+=($1)
		elif [[ "$1" =~ ^--(no-prebuild|force-rebuild|skip-mdsum|download|extract|keep-work)$ ]]; then
			OPTS+=($1)
		elif [[ "$1" =~ ^--(pkgdir|srcdir)= ]]; then
			OPTS+=($1)
		elif [[ "$1" =~ ^-. ]]; then
			echo "Unrecognize option. ($1)"
			return 1
		else
			PKGNAME=$1
		fi
		shift
	done
	pushd $(getportpath $PKGNAME)
	if [ $? = 0 ]; then
		pkgbuild ${OPTS[@]} || return 1
	else
		echo "Package '$PKGNAME' not found."
		return 1
	fi
}

installpkg() {
	local pkg i int pkgcount count IPKG OPTS REINSTALL
	
	needroot "Installing package"
	
	if [ -z "$1" ]; then
		echo "Please specify package(s) to install."
		return 1
	fi
	while [ "$1" ]; do
		if [[ "$1" =~ ^-(c|v|-verbose|-ignore-conflict)$ ]]; then
			OPTS+=($1)
		elif [[ "$1" =~ ^-(r|-reinstall)$ ]]; then
			OPTS+=($1)
			REINSTALL=1
		elif [[ "$1" =~ ^-(d|-no-dep)$ ]]; then
			NO_DEP=1
		elif [[ "$1" = "--no-confirm" ]]; then
			NOCONFIRM=1
		elif [[ "$1" =~ ^-. ]]; then
			echo "Unrecognize option. ($1)"
			return 1
		else
			PKGNAME+=($1)
		fi
		shift
	done
	# if reinstall, dont calculate dep, just reinstall it then exit
	if [ "$REINSTALL" = 1 ]; then
		for ii in ${PKGNAME[@]}; do
			if [ ! $(getportpath $ii) ]; then
				echo "Package '$ii' not found."
			elif ! isinstalled $ii; then
				echo "Package '$ii' not installed."
			else
				pushd $(getportpath $ii)
					pkgbuild -s --no-hook ${OPTS[@]}
					if [ $? != 0 ]; then
						error=1
						break
					fi
				popd
			fi
		done
		srunhooks ${PKGNAME[@]}
		[ "$error" = 1 ] && return 1 || return 0
	fi
	if [ "$NO_DEP" = 1 ]; then
		for ii in ${PKGNAME[@]}; do
			if [ ! $(getportpath $ii) ]; then
				echo "Package '$ii' not found."
			elif ! isinstalled $ii; then
				echo "Package '$ii' not installed."
				return 1
			else
				pushd $(getportpath $ii)
					pkgbuild -i --no-hook ${OPTS[@]}
					if [ $? != 0 ]; then
						error=1
						break
					fi
				popd
			fi
		done
		srunhooks ${PKGNAME[@]}
		[ "$error" = 1 ] && return 1 || return 0
	fi
	for i in ${PKGNAME[@]}; do
		if [ ! $(getportpath $i) ]; then
			echo "Package '$i' not found."
		elif isinstalled $ii; then
			echo "Package '$i' already installed."
			return 1
		else
			IPKG+=($i)
		fi
	done
	if [ "${#IPKG[@]}" = 0 ]; then
		echo "Nothing to do. Exiting..."
		return 0
	fi
	echo "Resolving dependencies..."
	INST="$(pkgdeplist -l -q ${IPKG[@]} | awk '{print $2}')"

	if [ "$INST" ]; then
		echo
		pkgcount=0
		for pkg in $INST; do
			pkgcount=$(( $pkgcount + 1 ))
			echo -n "$pkgcount) $pkg  "
		done
		echo; echo
		if [ ! "$NOCONFIRM" ]; then
			confirm "Continue install package(s)?" "Package installation cancelled."
			echo
		fi
		count=0
		total=$(echo $INST | wc -w)
		for int in ${INST[@]}; do
			count=$(( $count + 1 ))
			portpathh=$(getportpath $int)
			if [ "$portpathh" ]; then
				pushd $portpathh
					. $BUILD_SCRIPT
					settermtitle "[ $count/$total ] installing $name-$version-$release"
					pkgbuild -is --no-hook ${OPTS[@]}
					if [ $? != 0 ]; then
						error=1
						break
					fi
				popd
			else
				msgwarn "Skipping missing package: $int"
			fi
			unset portpathh
		done
		settermtitle "Triggering install hook"
		srunhooks ${INST[@]}
		if [ "$error" = 1 ]; then
			settermtitle "Install process done with failure"
			return 1
		else
			settermtitle "Install process done"
			return 0
		fi
	fi
}

outdatepkg() {
	local pkg
	
	for pkg in $(allinstalled); do
		if [ ! -e "$INDEX_DIR/$pkg/.lock" ] && getportpath $pkg >/dev/null; then
			. $(getportpath $pkg)/$BUILD_SCRIPT
			iversion=$(installed_pkg_info version $pkg)
			irelease=$(installed_pkg_info release $pkg)
			if [ "$release" != "$irelease" ] || [ "$version" != "$iversion" ]; then
				echo $name
			fi
			unset iversion irelease
		fi
	done
}

removepkg() {
	local pkg i IPKG OPTS
	
	needroot "Removing package"
	
	if [ -z "$1" ]; then
		echo "Please specify package(s) to remove."
		return 1
	fi
	while [ "$1" ]; do
		if [[ "$1" =~ ^--(no-postremove|no-preremove)$ ]]; then
			OPTS+=($1)
		elif [[ "$1" = "--no-confirm" ]]; then
			NOCONFIRM=1
		elif [[ "$1" =~ ^-. ]]; then
			echo "Unrecognize option. ($1)"
			return 1
		else
			PKGNAME+=($1)
		fi
		shift
	done
	
	for i in ${PKGNAME[@]}; do
		if ! isinstalled $i; then
			echo "Package '$i' not installed."
		else
			IPKG+=($i)
		fi
	done
	if [ "${#IPKG[@]}" = 0 ]; then
		echo "Nothing to do. Exiting..."
		return 0
	fi
	if [ "$IPKG" ]; then
		pkgcount=0
		count=0
		for pkg in ${IPKG[@]}; do
			pkgcount=$(( $pkgcount + 1 ))
			echo -n "$pkgcount) $pkg  "
		done
		echo; echo
		if [ ! "$NOCONFIRM" ]; then
			confirm "Continue remove package(s)?" "Package removing cancelled."
			echo
		fi
		for pkg in ${IPKG[@]}; do
			count=$(( $count + 1 ))
			srunpreremovehooks $pkg
			settermtitle "[ $count/$pkgcount ] Removing $pkg"
			pkgdel -s --no-hook $pkg ${OPTS[@]} || return 1
		done
		settermtitle "Triggering remove hook"
		srunremovehooks
		settermtitle "Remove process done"
	fi
}

sysup() {
	local d UPGPKG NEWPKG PKGOUTDATE OPTS
	
	needroot "Upgrading package"
	
	while [ "$1" ]; do
		if [ "$1" = "--no-confirm" ]; then
			NOCONFIRM=1
		elif [ "$1" = "--no-backup" ]; then
			OPTS+=($1)
		fi
		shift
	done
	
	PKGOUTDATE=$(outdatepkg)
	
	if [ ! "$PKGOUTDATE" ]; then
		msg "All package is up to date."
		return 0
	fi
	echo "Resolving dependencies..."
	DEP=$(pkgdeplist ${PKGOUTDATE[@]} -l | awk '{print $2}')
	echo
	
	UPGPKG=0
	NEWPKG=0
	for d in $DEP; do
		if [ "$(echo $PKGOUTDATE | tr ' ' '\n' | grep -x $d)" = "$d" ]; then
			echo -ne "[${GREEN}u${CRESET}] $d  "
			WILLINSTALL+=($d)
			UPGPKG=$(( $UPGPKG + 1 ))
		elif ! isinstalled $d && [ $(getportpath "$d") ]; then
			echo -ne "[${CYAN}n${CRESET}] $d  "
			WILLINSTALL+=($d)
			NEWPKG=$(( $NEWPKG + 1 ))
		fi
	done
	echo		
	echo
	echo "( $UPGPKG upgrade, $NEWPKG new install )"
	echo
	if [ ! "$NOCONFIRM" ]; then
		confirm "Continue upgrade/install these package(s)?" "Package upgrade cancelled."
		echo
	fi
	count=0
	total=$(echo ${WILLINSTALL[@]} | wc -w)
	for inst in ${WILLINSTALL[@]}; do # install all required dependencies and target packages itself
		count=$(( $count + 1 ))
		pushd $(getportpath $inst)
		. $BUILD_SCRIPT
		if ! isinstalled $inst; then
			settermtitle "[ $count/$total ] Installing $name-$version-$release"
			pkgbuild -is --no-hook ${OPTS[@]}
			if [ $? != 0 ]; then
				error=1
				break
			fi
		else
			settermtitle "[ $count/$total ] Upgrading $name-$version-$release"
			pkgbuild -us --no-hook ${OPTS[@]}
			if [ $? != 0 ]; then
				error=1
				break
			fi
		fi
	done
	settermtitle "Triggering install hook"
	srunhooks ${WILLINSTALL[@]}
	if [ "$error" = 1 ]; then
		settermtitle "Install process done with failure"
		return 1
	else
		settermtitle "Install process done"
		return 0
	fi
}

upgradepkg() {
	local pkg
	
	needroot "Upgrading package"
	
	needarg "$@"
	while [ "$1" ]; do
		if [[ "$1" =~ ^--(no-postupgrade|no-preupgrade)$ ]]; then
			OPTS+=($1)
		elif [[ "$1" =~ ^-(-no-dep|d)$ ]]; then
			NO_DEP=1
		elif [[ "$1" = "--no-confirm" ]]; then
			NOCONFIRM=1
		elif [[ "$1" =~ ^-. ]]; then
			echo "Unrecognize option. ($1)"
			exit 1
		else
			PKGNAME+=($1)
		fi
		shift
	done
	for pkg in ${PKGNAME[@]}; do
		if ! isinstalled $pkg; then
			msgerr "Package '$pkg' not installed."
			return 1
		fi
		if [ ! $(getportpath $pkg) ]; then
			msgerr "Package '$pkg' not exist."
			return 1
		fi
	done
	if [ -z "$NO_DEP" ]; then		
		echo "Resolving dependencies..."
		DEP=$(pkgdeplist -l -n ${PKGNAME[@]} | awk '{print $2}')
		for dep in $DEP; do
			if ! isinstalled $dep; then
				if [ $(getportpath $dep) ]; then
					NEWPKG+=($dep)
				fi
			fi
		done
	fi
	echo
	count=0
	for i in ${NEWPKG[@]} ${PKGNAME[@]}; do
		count=$(( $count + 1 ))
		echo -n "$count) $i  "
	done
	echo
	echo
	echo "( ${#PKGNAME[@]} upgrade, ${#NEWPKG[@]} new install )"
	echo

	if [ ! "$NOCONFIRM" ]; then
		confirm "Continue upgrade/install these package(s)?" "Package upgrade cancelled."
		echo
	fi
	if [ ${#NEWPKG[@]} -gt 0 ]; then
		for newpkg in ${NEWPKG[@]}; do			
			pushd $(getportpath $newpkg)
				. $BUILD_SCRIPT
				settermtitle "Installing $name-$version-$release"
				pkgbuild -is --no-hook ${OPTS[@]}
				if [ $? != 0 ]; then
					error=1
					break
				fi
			popd
		done
	fi
	for pkg in ${PKGNAME[@]}; do # upgrade all target packages
		pushd $(getportpath $pkg)
			. $BUILD_SCRIPT
			settermtitle "Upgrading $name-$version-$release"
			pkgbuild -us --no-hook ${OPTS[@]}
			if [ $? != 0 ]; then
				error=1
				break
			fi
		popd
	done
	settermtitle "triggering upgrade hook"
	srunhooks ${NEWPKG[@]} ${PKGNAME[@]}
	if [ "$error" = 1 ]; then
		settermtitle "Upgrade process done with failure"
		return 1
	else
		settermtitle "Upgrade process done"
		return 0
	fi
}

outdate() {
	local pkg
	
	for pkg in $(allinstalled); do
		if [ $(getportpath $pkg) ]; then
			. $(getportpath $pkg)/$BUILD_SCRIPT
			iversion=$(installed_pkg_info version $pkg)
			irelease=$(installed_pkg_info release $pkg)
			[ -f "$INDEX_DIR/$pkg/.lock" ] && ITSLOCK="[locked]"
			outdatemsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${CYAN}$ITSLOCK${CRESET}"
			newerinstmsg="$name ${RED}$iversion-$irelease${CRESET} => ${GREEN}$version-$release${CRESET} ${YELLOW}[newer installed]${CRESET} ${CYAN}$ITSLOCK${CRESET}"
			if [ "$version" !=  "$iversion" ]; then
				vercomp $version $iversion
				if [ $? = 2 ]; then
					echo -e "$outdatemsg"
					OUTDATE=yes
				elif [ $? = 1 ]; then
					echo -e "$newerinstmsg"
					OUTDATE=yes
				fi
			elif [ "$release" !=  "$irelease" ]; then
				vercomp $release $irelease
				if [ $? = 2 ]; then
					echo -e "$outdatemsg"
					OUTDATE=yes
				elif [ $? = 1 ]; then
					echo -e "$newerinstmsg"
					OUTDATE=yes
				fi
			fi
			unset ITSLOCK
		fi
	done
	
	[ ! "$OUTDATE" ] && msg "All package is up to date."
}

clearpkgcache() {	
	needroot "Removing package & source cache"
	
	getpkgcache
	
	if [ ${#ALL_PACKAGES[@]} -gt 0 ]; then
		for pkg in ${ALL_PACKAGES[@]}; do
			rm -v $PACKAGE_DIR/$pkg
		done
	fi
	
	if [ ${#ALL_SOURCES[@]} -gt 0 ]; then
		for src in ${ALL_SOURCES[@]}; do
			rm -v $SOURCE_DIR/$src
		done
	fi	
}

getpkgcache() {
	
	[ -f /etc/scratchpkg.conf ] && . /etc/scratchpkg.conf
	
	for list in $(ls "$PACKAGE_DIR"); do
		[ -f "$PACKAGE_DIR"/$list ] && ALL_PACKAGES+=($list)
	done
	
	for list in $(ls "$SOURCE_DIR"); do
		[ -f "$SOURCE_DIR"/$list ] && ALL_SOURCES+=($list)
	done
	
	for repo in ${PORT_REPO[@]}; do
		for port in $(ls $repo); do
			if [ -f $repo/$port/$BUILD_SCRIPT ]; then
				. $repo/$port/$BUILD_SCRIPT
				PORT_PACKAGES+=($name-$version-$release.spkg.txz)
				if [ ! -z $source ]; then
					for src in ${source[@]}; do
						if [ $(echo $src | grep -E "(ftp|http|https)://") ]; then
							if [ $(echo $src | grep -E "::(ftp|http|https)://") ]; then
								sourcename="$(echo $src | awk -F '::' '{print $1}')"
							else
								sourcename="$(echo $src | rev | cut -d / -f 1 | rev)"
							fi
							SOURCE_NAMES+=($sourcename)
						fi
					done
				fi
			fi
		done
	done
	
	for i in ${PORT_PACKAGES[@]}; do
		for pkg in ${!ALL_PACKAGES[@]}; do
			if [ "${ALL_PACKAGES[pkg]}" = "$i" ]; then
				unset 'ALL_PACKAGES[pkg]'
				break
			fi
		done
	done
	
	for a in ${SOURCE_NAMES[@]}; do
		for src in ${!ALL_SOURCES[@]}; do
			if [ "${ALL_SOURCES[src]}" = "$a" ]; then
				unset 'ALL_SOURCES[src]'
				break
			fi
		done
	done
}

pkgcache() {	
	getpkgcache
	
	if [ ${#ALL_PACKAGES[@]} -gt 0 ]; then
		ALL_PACKAGES_SIZE=$(pushd "$PACKAGE_DIR" && du -ch ${ALL_PACKAGES[@]} | grep total | awk '{print $1}' && popd)
	else
		ALL_PACKAGES_SIZE=0M
	fi
	
	if [ ${#ALL_SOURCES[@]} -gt 0 ]; then
		ALL_SOURCES_SIZE=$(pushd "$SOURCE_DIR" && du -ch ${ALL_SOURCES[@]} | grep total | awk '{print $1}' && popd)
	else
		ALL_SOURCES_SIZE=0M
	fi
	
	msg "${CYAN}Package cache ($ALL_PACKAGES_SIZE):${CRESET}"
	[ ${#ALL_PACKAGES[@]} -gt 0 ] && (echo ${ALL_PACKAGES[@]} | tr ' ' '\n') || echo "(none)"
	
	echo ""
	msg "${CYAN}Source cache ($ALL_SOURCES_SIZE):${CRESET}"
	[ ${#ALL_SOURCES[@]} -gt 0 ] && (echo ${ALL_SOURCES[@]} | tr ' ' '\n') || echo "(none)"
}

showportpath() {
	needarg $@
	
	if PPATH=$(getportpath "$1"); then
		echo "$PPATH"
	else
		msgerr "Port '$1' not exist."
		exit 1
	fi	
}

duplicateports() {	
	dup=$(find ${PORT_REPO[@]} -type d -print | egrep -xv "($(echo ${PORT_REPO[@]} | tr ' ' '|'))" | \
		rev | cut -d '/' -f1 | rev | sort | uniq -d)
	
	if [ "$dup" ]; then
		for dp in $dup; do
			for repo in ${PORT_REPO[@]}; do
				reponame=$(basename $repo)
				[ -d $repo/$dp ] && echo "$repo/$dp"
			done
		done
	else
		msg "No duplicate ports found."
	fi	
}

usage_extra() {
	cat << EOF
Usage:
    $(basename $0) <operation> [ <pkgname/pattern/file> ]
    
Operation:
    depends   <package>       show depends of a package
    search    <pattern>       search packages in port's repos
    lock      <packages>      lock packages from upgrade
    unlock    <packages>      unlock packages from upgrade
    cat       <package>       view a package build scripts
    dependent <package>       show package's dependent
    own       <file>          show package's owner of file
    pkgtree   <package>       show list files of installed package
    path      <package>       show package's buildscripts path
    sync                      update port's repo
    sysup                     full system update
    dup                       print duplicate ports in repo
    readme                    print readme file if exist
    listinst                  list installed package in system
    listorphan                list orphan package
    integrity                 check integrity of package's files
    outdate                   check for outdate packages
    cache                     print leftover cache
    rmcache                   remove leftover cache
    missingdep                check for mising dependency of installed package
    foreignpkg                print package installed without port in repo
    listlocked                print locked packages
    
EOF
}

usage_build() {
	cat << EOF
Usage:
    $(basename $0) build [ <pkgname> <options> ]
    
Options:
    -f, --force-rebuild    force rebuild
    -m, --skip-mdsum       skip md5sum check for sources
    -d, --no-dep           skip dependency check
    -e, --extract          extract only
    -w, --keep-work        keep woring directory
    -o, --download         download source files only
    -v, --verbose          be verbose
    --redownload           re-download source files
    --srcdir=<path>        override default SOURCE_DIR
    --pkgdir=<path>        override default PACKAGE_DIR
    --no-preinstall        skip pre-install script
    
EOF
}

usage_upgrade() {
	cat << EOF
Usage:
    $(basename $0) upgrade [ <pkgname> <options> ]
    
Options:
    -d, --no-dep           skip installing dependencies (new dependencies)
    -c, --ignore-conflict  skip file conflict check
    -v, --verbose          print install process
    --no-backup            skip backup configuration file
    --no-preupgrade        skip pre-upgrade script
    --no-postupgrade       skip post-upgrade script
    --no-confirm           dont ask confirmation
    
EOF
}

usage_remove() {
	cat << EOF
Usage:
    $(basename $0) remove [ <pkgname> <options> ]
    
Options:
    -d, --no-dep           skip dependency check
    -v, --verbose          print removed files
    --no-preremove         skip pre-remove script
    --no-postremove        skip post-remove script
    --no-confirm           dont ask confirmation
    
EOF
}

usage_install() {
	cat << EOF
Usage:
    $(basename $0) install [ <pkgname> <options> ]
    
Options:
    -d, --no-dep           skip installing dependencies
    -c, --ignore-conflict  skip file conflict check
    -r, --reinstall        reinstall installed package
    --no-preinstall        skip pre-install script
    --no-postinstall       skip post-install script
    --no-confirm           dont ask confirmation
    
EOF
}

usage_help() {
	cat << EOF
Usage:
    $(basename $0) help <operation>
    
Operation:
    build           build only packages
    install         install packages
    remove          remove packages in system
    upgrade         upgrade packages and install new dependencies (if any)
    extra           various extra options
    
EOF
}

usage() {
	if [ -z "$1" ];then
		usage_help
	else
		case "$1" in
			install) usage_install ;;
			remove)  usage_remove ;;
			upgrade) usage_upgrade ;;
			build)   usage_build ;;
			extra)   usage_extra ;;
		esac
	fi
}

extract_opt() {
	local opt OPTS
	for opt in $@; do
		case $opt in
			  --*) OPTS+=($opt) ;;
			   -*) for (( i=1; i<${#opt}; i++ )); do OPTS+=(-${opt:$i:1}); done ;;
			    *) OPTS+=($opt) ;;
		esac
	done
	echo ${OPTS[@]}
}

main() {
	
	if [ "$mode" = "build" ]; then
		buildpkg $@
		exit $?
	fi
	
	if [ "$mode" = "install" ]; then
		installpkg $@
		exit $?
	fi
	
	if [ "$mode" = "upgrade" ]; then
		upgradepkg $@
		exit $?
	fi
	
	if [ "$mode" = "remove" ]; then
		removepkg $@
		exit $?
	fi
	
	if [ "$mode" = "sysup" ]; then
		sysup $@
		exit $?
	fi
	
	if [ "$mode" = "outdate" ]; then
		outdate
		exit $?
	fi
	
	if [ "$mode" = "listorphan" ]; then
		listorphan
		exit $?
	fi
	
	if [ "$mode" = "search" ]; then
		searchpkg $1
		exit $?
	fi
	
	# search for foreign port (installed package with no port in repos)
	if [ "$mode" = "foreignpkg" ]; then
		foreignpkg
		exit $?
	fi
	
	if [ "$mode" = "sync" ]; then
		updports
		exit $?
	fi
	
	if [ "$mode" = "listinstalled" ]; then
		listinstalled
		exit $?
	fi
	
	if [ "$mode" = "readme" ]; then
		printreadme $1
		exit $?
	fi
	
	if [ "$mode" = "pkgtree" ]; then
		showtree $1
		exit $?
	fi
	
	if [ "$mode" = "own" ]; then
		checkowner $1
		exit $?
	fi
	
	if [ "$mode" = "dependent" ]; then
		showdependent $1
		exit $?
	fi
	
	if [ "$mode" = "cat" ]; then
		catport $1
		exit $?
	fi
	
	if [ "$mode" = "depends" ]; then
		showdepends $1
		exit $?
	fi
	
	if [ "$mode" = "lock" ]; then
		lockpkg $@
		exit $?
	fi
	
	if [ "$mode" = "unlock" ]; then
		unlockpkg $@
		exit $?
	fi
	
	if [ "$mode" = "listlocked" ]; then
		listlocked
		exit $?
	fi
	
	if [ "$mode" = "listinst" ]; then
		listinstalled
		exit $?
	fi
	
	if [ "$mode" = "rmcache" ]; then
		clearpkgcache
		exit $?
	fi
	
	if [ "$mode" = "cache" ]; then
		pkgcache
		exit $?
	fi
	
	if [ "$mode" = "help" ]; then
		usage $1
		exit $?
	fi
	
	if [ "$mode" = "integrity" ]; then
		checkintegrity $1
		exit $?
	fi
	
	if [ "$mode" = "path" ]; then
		showportpath $1
		exit $?
	fi
	
	if [ "$mode" = "dup" ]; then
		duplicateports
		exit $?
	fi
	
	if [ "$mode" = "missingdep" ]; then
		missingdep
		exit $?
	fi

	echo "Run 'scratch help' to see available mode and options"
	exit 5
}

BUILD_SCRIPT="spkgbuild"
INDEX_DIR="/var/lib/scratchpkg/index"
REPO_FILE="/etc/scratchpkg.repo"
HOOK_DIR="/etc/hooks"

SOURCE_DIR="/var/cache/scratchpkg/sources"
PACKAGE_DIR="/var/cache/scratchpkg/packages"

if [ ! -f "$REPO_FILE" ]; then
	msgerr "repo file not exist. ($REPO_FILE)"
	exit 1
else
	while read repodir repourl junk; do
		case $repodir in
			""|"#"*) continue ;;
		esac
		PORT_REPO+=($repodir)
	done < "$REPO_FILE"
fi

mode=$1
shift
	
main $(extract_opt $@)