#!/usr/bin/env node

'use strict'

const fs = require('fs')

const _ = require('lodash')

const meow = require('meow')

const chalk = require('chalk')

const mkdirp = require('mkdirp')

const dedent = require('dedent')

const isBlank = require('is-blank')

const isPresnet = require('is-present')

const fileExists = require('file-exists')

const cssstats = require('cssstats')

const trailingLines = require('single-trailing-newline')

const authorsToMd = require('authors-to-markdown')

const tachyonsBuildCss = require('tachyons-build-css')

const cli = meow(`

Usage

$ tachyons <input.css>

Options

-m, --minify Minify the output stylesheet

-r, --repeat Repeat class names to increase specificity

-a, --authors Dynamically add authors based on package.json

-n, --new Generate a new Tachyons project

--rtl Generate rtl supported css

--generate-docs Generate documentation for a given module

--package The path to the module package to be documented

--preserve-variables Preserve CSS variables in output

Example

$ tachyons src/tachyons.css > dist/c.css

$ tachyons src/tachyons.css > dist/c.css --minify

$ tachyons src/tachyons.css > dist/c.repeated.css --repeat

$ tachyons src/tachyons-type-scale.css --generate-docs --package=./package.json > readme.md

$ tachyons --new=my-new-project

`, {

alias: {

m: 'minify',

r: 'repeat',

a: 'authors',

n: 'new'

}

})

const inputFile = cli.input[0]

const outputFile = cli.input[1]

if (cli.flags.new) {

console.log('Generating a new Tachyons project')

const projDir = cli.flags.new == true ? 'tachyons-project' : cli.flags.new

mkdirp.sync(projDir)

mkdirp.sync(projDir + '/src')

mkdirp.sync(projDir + '/css')

const index = fs.readFileSync(__dirname + '/templates/new/index.html', 'utf8')

const pkg = fs.readFileSync(__dirname + '/templates/new/package.json', 'utf8')

const readme = fs.readFileSync(__dirname + '/templates/new/readme.md', 'utf8')

const style = fs.readFileSync(__dirname + '/templates/new/src/styles.css', 'utf8')

fs.writeFileSync(projDir + '/index.html', index)

fs.writeFileSync(projDir + '/package.json', pkg)

fs.writeFileSync(projDir + '/readme.md', readme)

fs.writeFileSync(projDir + '/src/styles.css', style)

console.log('New project located in ' + projDir)

process.exit(0)

}

if (isBlank(inputFile)) {

console.error(chalk.red('Please provide an input stylesheet'))

console.log(cli.help)

process.exit(1)

} else if (!fileExists(inputFile)) {

console.error(chalk.red('File does not exist ' + inputFile))

console.log(cli.help)

process.exit(1)

}

const input = fs.readFileSync(inputFile, 'utf8')

tachyonsBuildCss(input, {

from: inputFile,

to: outputFile,

rtl: cli.flags.rtl,

minify: cli.flags.minify,

repeat: cli.flags.repeat,

preserveVariables: cli.flags.preserveVariables

}).then(function (result) {

if (cli.flags.generateDocs) {

const stats = cssstats(result.css)

const pkg = require(cli.flags.package)

const template = fs.readFileSync(__dirname + '/templates/readme.md', 'utf8')

const tpl = _.template(template)

let authors = `* [mrmrs](http://mrmrs.io)

* [johno](http://johnotander.com)

`

if (cli.flags.authors) {

authors = authorsToMd(pkg)

}

const srcMd = /^\/\*!!![\s\S]*?\*\/.*/.exec(input)

const defaultMd = `

# ${pkg.name} ${pkg.version}

${pkg.description}

`

const md = tpl({

stats,

authors,

module: pkg,

srcMd: dedent(srcMd && srcMd[0] || defaultMd).replace(/^\/\*!!!/, '').replace(/\*\/$/, ''),

srcCss: trailingLines(result.css)

})

console.log(trailingLines(md))

process.exit(0)

} else {

console.log(trailingLines(result.css))

process.exit(0)

}

})