# -*-eselect-*-  vim: ft=eselect
# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU GPL version 2 or later

DESCRIPTION="Manage the Projucer version"
MAINTAINER="flewkey@2a03.party"
VERSION="@V@"

find_targets() {
	local target
	for target in "${EROOT}/opt/juce-"*; do
		[[ -f "${target}/Projucer" ]] && basename ${target}
	done
}

remove_symlink() {
	rm -f "${EROOT}/usr/bin/Projucer"
}

set_symlink() {
	local target="${1}"
	ln -s "${EROOT}/opt/${target}/Projucer" "${EROOT}/usr/bin/Projucer"
}

get_version() {
	local path=$(canonicalise "${EROOT}/usr/bin/Projucer")
	echo $(basename "${path::-8}")
}

validate_target() {
	[[ -f "${EROOT}/opt/${1}/Projucer" ]] || die
}

# show

describe_show() {
	echo "Show the current Projucer version"
}

do_show() {
	write_list_start "Current Projucer version:"
	if [[ -f "${EROOT}/usr/bin/Projucer" ]]; then
		write_kv_list_entry $(get_version) ""
	else
		write_kv_list_entry "(unset)" ""
	fi
}

# list

describe_list() {
	echo "List available Projucer versions"
}

do_list() {
	local i targets=( $(find_targets) )
	write_list_start "Available Projucer versions:"
	for (( i = 0; i < ${#targets[@]}; i++ )); do
		[[ ${targets[i]} = $(get_version) ]] \
		&& targets[i]=$(highlight_marker "${targets[i]}")
	done
	write_numbered_list -m "(none found)" "${targets[@]}"
}

# set

describe_set() {
	echo "Set a new Projucer version"
}

describe_set_parameters() {
	echo "<target>"
}

describe_set_options() {
	echo "target : Target JUCE package"
}

do_set() {
	[[ -z ${1} ]] && die -q "Please specify a version of JUCE"
	local target="${1}"
	if is_number "${target}" ; then
		targets=( $(find_targets) )
		target=${targets[$((${target}-1))]}
	fi
	validate_target ${target} || die -q "Invalid target"
	remove_symlink || die -q "Failed to remove the existing symlink"
	set_symlink "${target}" || die -q "Failed to set the new symlink"
}