#!/hint/bash

# defcolor <color name> <function>
function _bashmsg.defcolor {
	local col=$1
	local fn=$2
	eval "function _bashmsg.${col} { ${fn} \${@}; }"
}

# dyncolor <type> <command>
function _bashmsg.dyncolor {
	local typevar="_bashmsg_col_${1}"
	local col=${!typevar}
	shift
	_bashmsg.${col} "$@"
}

# def_bashcols_color <color name> <color id>
function _bashmsg.def_bashcols_color {
	if [[ -n $_bashlib_bashcols ]]; then
		defcol "$1" "$2"
		_bashmsg.defcolor "$1" "$1"
	else
		msg_error "${FUNCNAME}: bashcols is not loaded, color support unavailable"
		return 1
	fi
}

function _bashmsg.is_color_defined {
	PATH= command -v _bashmsg.${1} >/dev/null
}

# prompt_generic <ydefault/ndefault> <prefix> <name> <message>
function _bashmsg.prompt_generic {
	local mode=$1
	local pref=$2
	local name=$3
	local msg=$4

	local msg_w_pref=$(printf '%s %s' "$(_bashmsg.dyncolor "_p_${name}" echo -n "${pref}")" "${msg}")
	case "$mode" in
		ydefault)
			if [[ -n $ZSH_VERSION ]]; then
				read -r "?${msg_w_pref} [Y/n] " CHOICE
			else
				read -r -p "${msg_w_pref} [Y/n] " CHOICE
			fi
			[[ -z $CHOICE || $CHOICE =~ ^[yY]$ ]]
			;;
		ndefault)
			if [[ -n $ZSH_VERSION ]]; then
				read -r "?${msg_w_pref} [y/N] " CHOICE
			else
				read -r -p "${msg_w_pref} [y/N] " CHOICE
			fi
			[[ $CHOICE =~ ^[yY]$ ]]
			;;
		*)
			msg_error "Unknown prompt mode: ${mode}"
			return 1
			;;
	esac
}

################# INITIALIZATION ################

if [[ -z $_bashlib_bashcols ]]; then
	function _bashmsg.nocolor { "$@"; }
	_bashmsg.defcolor red      _bashmsg.nocolor
	_bashmsg.defcolor green    _bashmsg.nocolor
	_bashmsg.defcolor brown    _bashmsg.nocolor
	_bashmsg.defcolor blue     _bashmsg.nocolor
	_bashmsg.defcolor magenta  _bashmsg.nocolor
	_bashmsg.defcolor cyan     _bashmsg.nocolor
	_bashmsg.defcolor white    _bashmsg.nocolor
	_bashmsg.defcolor grey     _bashmsg.nocolor
	_bashmsg.defcolor redl     _bashmsg.nocolor
	_bashmsg.defcolor greenl   _bashmsg.nocolor
	_bashmsg.defcolor yellow   _bashmsg.nocolor
	_bashmsg.defcolor bluel    _bashmsg.nocolor
	_bashmsg.defcolor magenta  _bashmsg.nocolor
	_bashmsg.defcolor cyanl    _bashmsg.nocolor
	_bashmsg.defcolor whitel   _bashmsg.nocolor
	_bashmsg.defcolor black    _bashmsg.nocolor
else
	_bashmsg.defcolor red      red
	_bashmsg.defcolor green    green
	_bashmsg.defcolor brown    brown
	_bashmsg.defcolor blue     blue
	_bashmsg.defcolor magenta  magenta
	_bashmsg.defcolor cyan     cyan
	_bashmsg.defcolor white    white
	_bashmsg.defcolor grey     grey
	_bashmsg.defcolor redl     redl
	_bashmsg.defcolor greenl   greenl
	_bashmsg.defcolor yellow   yellow
	_bashmsg.defcolor bluel    bluel
	_bashmsg.defcolor magenta  magenta
	_bashmsg.defcolor cyanl    cyanl
	_bashmsg.defcolor whitel   whitel
	_bashmsg.defcolor black    black
	_bashmsg.def_bashcols_color orange 202
fi


_bashmsg_col_info=grey
_bashmsg_col_warn=orange
_bashmsg_col_error=red

function bashmsg.def_color {
	_bashmsg.def_bashcols_color "$1" "$2"
}

# set_color type=<info|warn|error|...> <col>
function bashmsg.set_color {
	local colvar="_bashmsg_col_${1}"
	if [[ -z ${!colvar} ]]; then
		msg_error "${FUNCNAME}: unknown message type '${1}'"
		return 1
	fi
	if ! _bashmsg.is_color_defined ${2}; then
		msg_error "${FUNCNAME}: unknown color '${2}'"
		return 1
	fi
	declare -g "${colvar}"=${2}
}

# def_type <name> <prefix> <default color>
function bashmsg.def_type {
	declare -g _bashmsg_col_${1}=${3}
	eval "function msg_${1} { printf '%s %s\n' \"\$(_bashmsg.dyncolor ${1} echo -n \"${2}\")\" \"\${*}\" ; }"
}

# def_prompt_type <name> <prefix> <default color> [<ydefault/ndefault>]
function bashmsg.def_prompt_type {
	declare -g _bashmsg_col__p_${1}=${3}
	if [[ -z $4 ]]; then
		eval "function prompt_${1} { _bashmsg.prompt_generic \"\${1}\" \"${2}\" \"${1}\" \"\${2}\" ; }"
	else
		eval "function prompt_${1} { _bashmsg.prompt_generic \"${4}\" \"${2}\" \"${1}\" \"\${1}\" ; }"
	fi
}

# Default types
bashmsg.def_type info '[info]' grey
bashmsg.def_type warn '[warn]' orange
bashmsg.def_type error '[error]' red

_bashlib_bashmsg=1