i18n-bundle.coffee

# (C) Uri Wilensky. https://github.com/NetLogo/Tortoise

EN_US = require('./en_us')

# Manually importing these is kind-of a pain, but it's easy enough to keep updated and I don't feel like wrestling with
# getting the dyanmic `require()` working with Tortoise's packaging.  *TODO*: Once we've switched over to ES modules
# would be a good time to revisit this.  -Jeremy B March 2023
ZH_CN = require('./zh_cn')
ES_ES = require('./es_es')
JA_JP = require('./ja_jp')
PT_PT = require('./pt_pt')


BUNDLES = {
  'en_us': EN_US
, 'zh_cn': ZH_CN
, 'es_es' : ES_ES
, 'ja_jp' : JA_JP
, 'pt_pt' : PT_PT
}

{ exceptionFactory: exceptions } = require('util/exception')

# At the moment this doesn't do much but it'd be a good place to add
# the ability to swap the current locale as needed.
# -Jeremy B November 2020

class I18nBundle

  _current = null
  _warnings = new Set()

  constructor: () ->
    @_current = EN_US

  get: (key, args...) ->
    bundle = if @_current.hasOwnProperty(key)
      @_current
    else if @_current isnt EN_US and EN_US.hasOwnProperty(key)
      EN_US
    else
      throw exceptions.internal("Could not find a message for this key: #{key}")

    message = bundle[key]
    message(args...)

  supports: (locale) ->
    BUNDLES.hasOwnProperty(locale)

  switch: (locale) ->
    if @supports(locale)
      @_current = BUNDLES[locale]

    else
      if not @_warnings.has(locale)
        @_warning.add(locale)
        console.warn("Unsupported locale '#{locale}', reverting to 'en_us'.")

      @_current = EN_US

module.exports = I18nBundle