#!/bin/bash

# m4_include(lib/common.sh)

source @libdir@/functions.sh

get_profiles(){
    local prof= temp=
    for p in $(ls ${profiledir}/*.set);do
	temp=${p##*/}
	prof=${prof:-}${prof:+|}${temp%.set}
    done
    echo $prof
}

get_user(){
    echo $(ls ${chrootdir} | cut -d' ' -f1 | grep -v root | grep -v lock)
}

chroot_clean(){
    for copy in "${chrootdir}"/*; do
	[[ -d "${copy}" ]] || continue
	msg2 "Deleting chroot copy '$(basename "${copy}")'..."

	exec 9>"${copy}.lock"
	if ! flock -n 9; then
	    stat_busy "Locking chroot copy '${copy}'"
	    flock 9
	    stat_done
	fi

	if [[ "$(stat -f -c %T "${copy}")" == btrfs ]]; then
	    { type -P btrfs && btrfs subvolume delete "${copy}"; } &>/dev/null
	fi
	rm -rf --one-file-system "${copy}"
    done
    exec 9>&-

    rm -rf --one-file-system "${chrootdir}"
}

chroot_create(){
    mkdir -p "${chrootdir}"
    setarch ${arch} \
	mkchroot ${mkmanjaroroot_args[*]} ${chrootdir}/root ${base_packages[*]} || abort
}

chroot_update(){
    setarch "${arch}" \
	mkchroot ${mkmanjaroroot_args[*]} -u ${chrootdir}/$(get_user) || abort
}

chroot_init(){
      if [[ ! -d "${chrootdir}" ]]; then
	  msg "Creating chroot for [${branch}] (${arch})..."
	  chroot_create
      elif ${clean_first};then
	  msg "Creating chroot for [${branch}] (${arch})..."
	  chroot_clean
	  chroot_create
      else
	  msg "Updating chroot for [${branch}] (${arch})..."
	  chroot_update
      fi
}

chroot_build_set(){
    chroot_init
    msg "Start building profile: [${profile}]"
    for pkg in $(cat ${profiledir}/${profile}.set); do
	cd $pkg
	setarch ${arch} \
	    mkchrootpkg ${makechrootpkg_args[*]} -- "${makepkg_args[*]}" || break
	if [[ $pkg == 'eudev' ]]; then
	    local blacklist=('libsystemd')
	    pacman -Rdd "${blacklist[@]}" -r ${chrootdir}/$(get_user) --noconfirm
	    local temp
	    if [[ -z $PKGDEST ]];then
		temp=$pkg
	    else
		temp=$pkgdir/$pkg
	    fi
	    pacman -U $temp*${ARCH}*pkg*z -r ${chrootdir}/$(get_user) --noconfirm
	fi
	cd ..
    done
    msg "Finished building profile: [${profile}]"
}

chroot_build(){
    cd ${profile}
    chroot_init
    setarch ${arch} \
	mkchrootpkg ${makechrootpkg_args[*]} -- "${makepkg_args[*]}" || abort
    cd ..
}

display_build_set(){
    msg "SETS:"
    msg2 "profiles: $profiles"
    msg2 "profile: $profile"
    msg2 "is_profile: ${is_profile}"
    if ${is_profile};then
	msg "These packages will be built:"
	local temp=$(cat ${profiledir}/${profile}.set)
	for p in ${temp[@]}; do
	    msg2 "$p"
	done
    else
	msg "This package will be built:"
	msg2 "${profile}"
    fi
}

run_pretend(){
    eval "case ${profile} in
	$profiles) is_profile=true ;;
	*) is_profile=false ;;
    esac"
    display_build_set
    exit 0
}

run(){
    eval "case ${profile} in
	$profiles) is_profile=true; display_build_set && chroot_build_set ;;
	*) display_build_set && chroot_build ;;
    esac"
}

#################################MAIN##########################################

export LC_MESSAGES=C

shopt -s nullglob

version=20141003

arch=$(uname -m)
pacman_conf_arch='default'

devtools_conf='@sysconfdir@/devtools.conf'

if [[ -f ${devtools_conf} ]]; then
    . ${devtools_conf}
fi

if [[ -n ${branch} ]];then
    branch=${branch}
else
    branch='stable'
fi

if [[ -n ${profile} ]];then
    profile=${profile}
else
    profile='default'
fi

if [[ -n ${chroots} ]];then
    chroots=${chroots}
else
    chroots='/srv/manjarobuild'
fi

if [[ -n ${profiledir} ]];then
    profiledir=${profiledir}
else
    profiledir='@sysconfdir@/sets'
fi

if [[ -f ~/.makepkg.conf ]];then
    . ~/.makepkg.conf
else
    if [[ -r /etc/makepkg.conf ]]; then
	. /etc/makepkg.conf
    fi
fi

if [[ -n ${pkgdir} ]];then
    pkgdir=${pkgdir}
else
    pkgdir=$(pwd)/packages
fi

clean_first=false
namcap=false
sign=false
verbose=false
nosystemd=false
pretend=false
is_profile=false
clean_rundir=false
repo=false

base_packages=('base-devel')

mkmanjaroroot_args=()
makechrootpkg_args=()
makepkg_args=()
misc_args=()

profiles=$(get_profiles)

usage() {
    echo "Usage: ${0##*/} [options] -- [makepkg_args]"
    echo "    -p <profile>       Set profile or pkg [default ${profile}]"
    echo "    -a <arch>          Set arch  [default ${arch}]"
    echo "    -b <branch>        Set branch [default ${branch}]"
    echo "    -r <dir>           Chroots directory [default ${chroots}]"
    echo "    -c                 Clean chroot [default ${clean_first}]"
    echo "    -n                 Run namcap check [default ${namcap}]"
    echo '    -s                 Sign packages'
    echo '    -v                 Verbose'
    echo "    -x                 Use classic chroot instead of systemd-nspawn [default ${nosystemd}]"
    echo '                       Useful for testing if systemd is running to bypass autodetection'
    echo "    -q                 Pretend build [default ${pretend}]"
    echo '    -w                 Wipe clean pkgbuild directory'
    echo '    -y                 Add package to repo'
    echo '    -h                 This help'
    echo ''
    echo ''
    exit 1
}

opts='p:a:b:r:cnsvxqwyh'

while getopts "${opts}" arg; do
    case "${arg}" in
	p) profile="$OPTARG" ;;
	a) arch="$OPTARG" ;;
	b) branch="$OPTARG" ;;
	r) chroots="$OPTARG" ;;
	c) clean_first=true ;;
	n) namcap=true;;
	s) sign=true ;;
	v) verbose=true ;;
	x) nosystemd=true ;;
	q) pretend=true; verbose=true ;;
	w) clean_rundir=true ;;
	y) repo=true ;;
	h) usage ;;
    esac
done

if [[ "$arch" == 'multilib' ]]; then
    pacman_conf_arch='multilib'
    arch='x86_64'
    branch="${branch}-multilib"
    base_packages+=('multilib-devel')
fi

pacman_conf="@pkgdatadir@/pacman-${pacman_conf_arch}.conf"
makepkg_conf="@pkgdatadir@/makepkg-${arch}.conf"

chrootdir=${chroots}/${branch}-${arch}
#WORKDIR=${chrootdir}


if ${nosystemd};then
    mkmanjaroroot_args+=(-x)
fi

if ${namcap};then
    makechrootpkg_args+=(-n)
fi

# if ${repo};then
#     makechrootpkg_args+=(-d)
# fi

mkmanjaroroot_args+=(-C ${pacman_conf} -M ${makepkg_conf} -b ${branch})

makechrootpkg_args+=(-b ${branch} -r ${chrootdir})

makepkg_args+=("${*:$OPTIND}")

if ${verbose};then
    msg "OPTARGS:"
    msg2 "arch: $arch"
    msg2 "branch: $branch"
    msg2 "chroots: $chroots"

    msg "PATHS:"
    msg2 "chrootdir: $chrootdir"
    msg2 "profiledir: $profiledir"
    msg2 "pacman_conf: ${pacman_conf}"
    msg2 "makepkg_conf: $makepkg_conf"

    msg "mkmanjaroroot:"
    msg2 "args: ${mkmanjaroroot_args[*]}"
    msg "makechrootpkg:"
    msg2 "args: ${makechrootpkg_args[*]}"
    msg "makepkg:"
    msg2 "args: ${makepkg_args[*]}"

    msg "FLAGS:"
    msg2 "clean_first: $clean_first"
    msg2 "namcap: ${namcap}"
    msg2 "sign: $sign"
    msg2 "nosystemd: $nosystemd"
    msg2 "clean_rundir: $clean_rundir"
    msg2 "repo: ${repo}"

    msg "PKG:"
    msg2 "base_packages: ${base_packages[*]}"
    msg2 "pkgdir: ${pkgdir}"
    msg2 "PKGDEST: ${PKGDEST}"

    misc_args+=(-v)

fi

if ${clean_rundir}; then
    if ${pretend};then
	msg "Files to be cleaned ${rundir} ..."
	git clean -dfxn
    else
	msg "Cleaning ${rundir} ..."
	if ${verbose};then
	    git clean -dfx
	else
	    git clean -dfxq
	fi
    fi
fi

if [[ -n $PKGDEST ]];then
    pkgdir=$PKGDEST
else
    pkgdir=${pkgdir}/${arch}
    mkdir -p ${misc_args[*]} ${pkgdir}
fi

if [[ $EUID !=  0 ]]; then
    die 'This script must be run as root.'
else
    if ${pretend};then
	run_pretend $@
    else
	run $@
    fi
fi

. build-set-helper