Gottwik/Enduro

// * ———————————————————————————————————————————————————————— * //
// *     scaffolder
// *    handles new project creation
// *    gets whats after '$ enduro create' as @args
// * ———————————————————————————————————————————————————————— * //
const scaffolder = function () {}

// vendor variables
const Promise = require('bluebird')
const ncp = require('ncp').ncp // Handles copying files
const path = require('path')

// local variables
const logger = require(enduro.enduro_path + '/libs/logger')
const flat_helpers = require(enduro.enduro_path + '/libs/flat_db/flat_helpers')
const log_clusters = require(enduro.enduro_path + '/libs/log_clusters/log_clusters')
const glob = require('glob')

// constants
const DEFAULT_SCAFFOLDING_NAME = 'intro'

// * ———————————————————————————————————————————————————————— * //
// *     scaffold
// *
// *    copies required files into new project
// *    @param {string} project_name
// *    @param {string} scaffolder_name - defines which scaffolding to choose
// *    @return {Promise} - promise with no content. resolve if login was successfull
// * ———————————————————————————————————————————————————————— * //
scaffolder.prototype.scaffold = function (project_name, scaffolding_name) {
    return new Promise(function (resolve, reject) {

        if (!project_name) {
            return reject({ message: 'missing project name' })
        }

        const scaffolding_path = get_scaffolding_path_by_name(scaffolding_name)

        if (scaffolding_path == -1) {
            return reject()
        }

        // Destination directory
        const scaffolding_destination = path.join(enduro.project_path, project_name)

        // Reject if directory already exists
        if (flat_helpers.dir_exists_sync(scaffolding_destination) && !enduro.flags.force) {
            reject('requested directory already exists')
            return logger.err_block('\tdirectory already exists')
        }
        log_clusters.log('creating_project', {project_name: project_name})

        // Copy files - Without overwriting existing files
        ncp(scaffolding_path, scaffolding_destination, { clobber: false }, function (err) {
            if (err) {
                // Something went wrong with the copying
                reject('creating new files failed')
                return logger.err_block(err)
            }

            // Let the user know the project was created successfully
            log_clusters.log('project_created', {project_name: project_name})

            resolve()
        })
    })
}

function get_scaffolding_path_by_name (scaffolding_name) {

    scaffolding_name = scaffolding_name || DEFAULT_SCAFFOLDING_NAME

    const scaffolding_path = path.join(enduro.enduro_path, 'scaffolding', scaffolding_name)
    if (!flat_helpers.dir_exists_sync(scaffolding_path)) {
        non_existent_scaffoling_logout(scaffolding_name)
        return -1
    }

    return scaffolding_path
}

function non_existent_scaffoling_logout (scaffolding_name) {
    logger.err_blockStart('Scaffolding does not exist')
    logger.err('Scaffolding with name ' + scaffolding_name + ' does not exist')
    logger.err('\nChoose from these scaffoldings:\n')

    const scaffoldings = glob.sync(path.join(enduro.enduro_path, 'scaffolding', '*'))
    for (let s in scaffoldings) {
        logger.err('\t' + scaffoldings[s].match(/\/([^\/]*)$/)[1])
    }

    logger.err('\n')
    logger.err_blockEnd()
}

module.exports = new scaffolder()