# bash completion for cpm
# Author: Mart Lubbers
# Date: 2018-07-17
#
# Todo
# - support --envs=filename
# - create completion for module
# - create completion for environment
# - test on non-linux
_set_opts="-generic_fusion -ngeneric_fusion -dynamics -ndynamics -descexl -ndescexl -b -nr -nc -sc"

_targets()
{
	sed 's/EnvironmentName:[[:space:]]*//;t;d' | tr -d '\n'
}

_paths()
{
	sed 's/\[\([[:digit:]]\)\].*/\1/;t;d' | tr -d '\n'
}

_cpm()
{
	local arg cur prev words cword split

	# Require bash completion
	_init_completion || return
	_get_first_arg
	_get_comp_words_by_ref

	# subcommand or project file
	if [[ -z "${arg}" ]]
	then
		COMPREPLY=( $(compgen -W "environment project module make" -- ${cur}) )
		_filedir prj
	else 
		case "${arg}" in
		*.prj)
			COMPREPLY=( $(compgen -W "--force" -- ${cur}) )
			;;
		make)
			;;
		project)
			# Not even a project file is selected
			if [[ "$cword" = 2 ]]
			then
				_filedir prj
			# A project file is selected
			elif [[ "$cword" = 3 ]]
			then
				COMPREPLY=( $(compgen -W "create show build path root target exec set" -- ${cur}) )
			# A project command is selected
			elif [[ "$cword" -ge 4 ]]
			then
				case "${words[3]}" in
					build)
						COMPREPLY=( $(compgen -W "--force --envs" -- ${cur}) )
						;;
					path)
						# No path command set yet
						if [[ "$cword" = 4 ]]
						then
							COMPREPLY=( $(compgen -W "add list remove move" -- ${cur}) )
						# Path command is set
						elif [[ "$cword" -ge 5 ]]
						then
							case "${words[4]}" in
								add)
									_filedir -d
									;;
								list)
									;;
								remove)
									COMPREPLY=( $(compgen -W "$("${words[0]}" project "${words[2]}" path list | _paths)" -- ${cur}) )
									;;
								move)
									if [[ "$cword" = 5 ]]
									then
										COMPREPLY=( $(compgen -W "$("${words[0]}" project "${words[2]}" path list | _paths)" -- ${cur}) )
									elif [[ "$cword" = 6 ]]
									then
										COMPREPLY=( $(compgen -W "up down top bottom" -- ${cur}) )
									fi
									;;
							esac
						fi
						;;
					root)
						COMPREPLY=( $(compgen -W ". .. ... .... ....." -- ${cur}) )
						;;
					target)
						COMPREPLY=( $(compgen -W "$(_targets < "$CLEAN_HOME/etc/IDEEnvs")" -- ${cur}) )
						;;
					set)
						COMPREPLY=( $(compgen -W "$_set_opts" -- ${cur}) )
						;;
					exec)
						;;
					create)
						;;
					show)
						;;
					main)
						_filedir
						;;
				esac
			fi
			;;
		module)
			;;
		environment)
			;;
		esac
	fi
} && complete -F _cpm cpm