#!/usr/bin/env coffee

usage = """
Usage:
  update-octicons PATH-TO-OCTICONS
"""

path = require 'path'
fs = require 'fs'
YAML = require 'js-yaml'

scriptPath = process.argv[1]
pathToOcticons = process.argv[2] ? path.join(process.env.HOME, 'github', 'octicons')
atomDir = path.resolve(scriptPath, "../../..")

unless fs.existsSync(pathToOcticons)
  console.error(usage)
  process.exit(1)

# Copy font-file
fontSrc = path.join(pathToOcticons, 'octicons', 'octicons.woff')
fontDest = path.join(atomDir, 'static', 'octicons.woff')
fs.createReadStream(fontSrc).pipe(fs.createWriteStream(fontDest))

# Update Octicon UTF codes
glyphsSrc = path.join(pathToOcticons, 'data', 'glyphs.yml')
octiconUtfDest = path.join atomDir, 'static', 'octicon-utf-codes.less'
output = []
for {css, code} in YAML.load(fs.readFileSync(glyphsSrc).toString())
  output.push "@#{css}: \"\\#{code}\";"

fs.writeFileSync octiconUtfDest, "#{output.join('\n')}\n"