Gottwik/Enduro

// * ———————————————————————————————————————————————————————— * //
// *     markdownifier
// * ———————————————————————————————————————————————————————— * //
const markdownifier = function () {}

// * vendor dependencies
const Promise = require('bluebird')
const glob = require('glob-promise')

// Goes through the pages and renders them
markdownifier.prototype.precompute = function () {
    return new Promise(function (resolve, reject) {

        const markdown_rules_path = enduro.project_path + '/app/markdown_rules/**/*.js'

        // initalizes global precomputed markdown rules to an empty array
        enduro.precomputed_data.markdown_rules = []

        glob(markdown_rules_path)
            .then((files) => {
                for (f in files) {
                    enduro.precomputed_data.markdown_rules.push(require(files[f]))
                }
                resolve()
            })

    })
}

// * ———————————————————————————————————————————————————————— * //
// *     Applies all existent markdown rules to the context specified
// *    @param {pbject} context - context - all markdownifier rules will be applied to all strings in this object
// *    @return {promise} - promise with empty payload
// * ———————————————————————————————————————————————————————— * //
markdownifier.prototype.markdownify = function (context) {
    const self = this

    return Promise.resolve()
        .then(() => {
            // checks if the list of markdown rules was already precomputed
            // and precomputes the markdown rules if they were never precomputed before
            if (enduro.precomputed_data.markdown_rules) {
                return new Promise.resolve()
            } else {
                return self.precompute()
            }
        })
        .then(() => {

            // applies the markdown
            return deep_markdown(context)
        })

}

function deep_markdown (object) {
    for (o in object) {
        if (typeof object[o] === 'object') {
            deep_markdown(object[o])
        }

        if (typeof object[o] === 'string') {
            object[o] = apply_custom_markdown(object[o])

        }
    }

    return object
}

function apply_custom_markdown (input) {
    for (r in enduro.precomputed_data.markdown_rules) {
        input = enduro.precomputed_data.markdown_rules[r](input)
    }
    return input
}

module.exports = new markdownifier()