Gottwik/Enduro

// * ———————————————————————————————————————————————————————— * //
// *    filter helper
// *    filters context by applying lodash's isMatch
// *    usage:
// *
// *    {{#filter '{"depth": 0}'}}
// *        <p>Image: {{this}}</p>
// *    {{/filter}}
// * ———————————————————————————————————————————————————————— * //
const helper = function () {}

// vendor dependency
const _ = require('lodash')

helper.prototype.register = function () {

    enduro.templating_engine.registerHelper('filter', function (filter_string, handlebars_context) {

        // parses filter_string into object and if current context passes isMatch renders the template
        if (_.isMatch(this, JSON.parse(filter_string))) {
            return handlebars_context.fn(this)
        }

    })
}

module.exports = new helper()