#! /usr/bin/env sh
# ╭──────╮
# │ main │
# ╰──────╯

# ╭──────┬───────────╮
# │ main │ constants │
# ╰──────┴───────────╯

# project parent directory
RWX_MAIN_PARENT="/usr/local/lib"
# project name
RWX_MAIN_NAME="rwx"
# project entrypoint module
RWX_MAIN_MODULE="main"
# shell modules extension
RWX_MAIN_EXTENSION="sh"

# ╭──────┬───────────╮
# │ main │ variables │
# ╰──────┴───────────╯

# project main root directory
rwx_main_root="${RWX_MAIN_PARENT}/${RWX_MAIN_NAME}"
# project main entrypoint file
rwx_main_file="${RWX_MAIN_MODULE}/${RWX_MAIN_EXTENSION}"

# path to the entrypoint main file of the project
rwx_main_path="${rwx_main_root}/${rwx_main_file}"

# ╭──────┬──────╮
# │ main │ find │
# ╰──────┴──────╯

# FIXME separate in two functions
# find root directory shell modules
#| find
#| sed
#| sort
rwx_main_find() {
	local root="${1}"
	[ -d "${root}" ] &&
		find \
			"${root}" \
			-name "*.${RWX_MAIN_EXTENSION}" \
			-type "f" \
			-printf "%P\n" |
			sed "s|\\.[^.]*\$||" |
			sort
}

# ╭──────┬──────╮
# │ main │ main │
# ╰──────┴──────╯

# run required initial steps
#< core/code
#< core/shell
rwx_main_main() {
	local module
	local modules
	# find main modules
	modules="$(rwx_main_find "${rwx_main_root}")"
	# source main modules
	while IFS= read -r module; do
		# except currently running main module
		if [ "${module}" != "${RWX_MAIN_MODULE}" ]; then
			# shellcheck disable=SC1090
			. "${rwx_main_root}/${module}.${RWX_MAIN_EXTENSION}"
		fi
	done <<EOF
${modules}
EOF
	# run code module main function with found main modules
	rwx_code_main "${modules}"
	# run shell module main function
	rwx_shell_main "${@}"
}

# run main function
rwx_main_main "${@}"