#! /bin/bash

set -ex

BUILD_START=$SECONDS

format_duration() {
	local total="$1"
	printf '%02d:%02d:%02d' "$((total / 3600))" "$(((total % 3600) / 60))" "$((total % 60))"
}

run_phase() {
	local name="$1"
	shift
	local start=$SECONDS
	local status=0

	printf '====> starting %s\n' "$name"
	if "$@"; then
		status=0
	else
		status=$?
	fi
	printf '====> finished %s in %s\n' "$name" "$(format_duration "$((SECONDS - start))")"
	return "$status"
}

finish() {
	local status=$?
	run_phase cleanup scripts/cleanup.sh || true
	printf '====> total build.sh time: %s\n' "$(format_duration "$((SECONDS - BUILD_START))")"
	exit "$status"
}
trap finish EXIT

run_phase check-qemu scripts/check-qemu.sh
run_phase download-base scripts/download-base.sh
run_phase setup-mount scripts/setup-mount.sh
run_phase copy-files scripts/copy-files.sh
run_phase update-configtxt scripts/update-configtxt.sh
run_phase build-in-chroot scripts/build-in-chroot.sh