#!/usr/bin/env bash

source "${BASH_SOURCE%/*}"/config.bash
db_build_script="$(pwd)"/"${BASH_SOURCE%/*}"/db-build

cd "$PKGBUILD_DIR"

##
# Get commit sha from PKGVER of PKGBUILD
#
# Arguments:
#    $1    Path to the directory containing the PKGBUILD
#          to get the sha from
get_pkgver_sha() {
	(source "$1"/PKGBUILD
	printf "%s" "$(sed -r 's/.*\.r[0-9]*\.g?//' <<<$pkgver)")
}

get_repo_sha() {
	shopt -s nullglob
	local packages
	for f in "$REPO_ROOT"/"$1"*.tar.xz; do
		package="${f##*/}"

		package="${package//-git-/-git }"
		package="${package//-hg-/-hg }"
		package="${package//-?-*.pkg.tar.xz}"
		IFS=' ' read -ra p <<< "$package"

		if [[ -z "${package//* debug-*}" ]]; then
			continue
		else
			name="${p[0]}"
			ver="${p[1]}"
			printf "%s" "$(sed -r 's/.*\.r[0-9]*\.g?//' <<<$ver)"
			return
		fi
	done
}

main() {
	for package in "${packages[@]}"; do
		old_version[$package]=$(get_repo_sha "$package")
		(cd "$PKGBUILD_DIR"/"$package"
		makepkg --nobuild &>/dev/null) &
	done
	wait

	local needs_rebuild=()
	for package in "${packages[@]}"; do
		new_head=$(get_pkgver_sha "$package")

		if [[ "${old_version[$package]}" != "$new_head" ]]; then
			printf "%-30s %-25s %s\n" "$package" "${old_version[$package]}" "$new_head"
			needs_rebuild+=("$package")
		fi
	done

	if [[ ${#needs_rebuild[@]} -eq 0 ]]; then
		printf "%s\n" "No VCS packages found that needs to be rebuilt."
	else
		printf "%s\n" "Packages that needs to be rebuilt:"
		printf "%s\n" "${needs_rebuild[@]}"

		for package in "${needs_rebuild[@]}"; do
			(cd "$package"
			makepkg -src --noconfirm 2>/dev/null) &
		done
		wait
	fi

	"$db_build_script"
}

main "$@"