_ = require('lodash')
fsPlus = require('fs-plus')
path = require('path')

# Prefix relative value paths with another path
#
# @private
#
# @param {String} prefix path prefix
# @param {Object} object object containing relative paths as values
#
# @note Absolute values will be omitted
#
# @example Prefix object with path
#		object =
#			dataPrefix: 'resin'
#
#		object = prefixObjectValuesWithPath('/opt', object)
#		console.log(object.dataPrefix) # /opt/resin
#
exports.prefixObjectValuesWithPath = (prefix, object) ->
	return _.object _.map object, (value, key) ->
		result = [ key ]

		if fsPlus.isAbsolute(value)
			result.push(value)
		else
			result.push(path.join(prefix, value))

		return result