# encoding: utf-8
#
# This file is part of the lazier gem. Copyright (C) 2013 and above Shogun <shogun@cowtech.it>.
# Licensed under the MIT license, which can be found at http://www.opensource.org/licenses/mit-license.php.
#

require "spec_helper"

describe Lazier::I18n do
  subject {
    c = ::Object.new
    c.class_eval { include Lazier::I18n }
    c
  }

  let(:root_path) { ::File.absolute_path(::Pathname.new(::File.dirname(__FILE__)).to_s + "/../../locales/") }

  before(:each) do
    ENV["LANG"] = "en"
    allow(::R18n::I18n).to receive(:system_locale).and_return("en")
  end

  describe "#i18n_setup" do
    it "should set the root and the path" do
      subject.i18n_setup("ROOT", root_path)
      expect(subject.instance_variable_get(:@i18n_root)).to eq(:ROOT)
      expect(subject.instance_variable_get(:@i18n_locales_path)).to eq(root_path)
    end
  end

  describe "#i18n" do
    it "should call the private method if nothing is set" do
      subject.instance_variable_set(:@i18n, nil)
      expect(subject).to receive(:i18n_load_locale)
      subject.i18n
    end
  end

  describe "#i18n=" do
    it "should call the private method if nothing is set" do
      expect(subject).to receive(:i18n_load_locale).and_return("LOCALE")
      subject.i18n = :en
      expect(subject.instance_variable_get(:@i18n)).to eq("LOCALE")
    end
  end

  describe "#i18n_load_locale" do
    it "should set using system locale if called without arguments" do
      subject.i18n_setup("lazier", root_path)
      expect(::R18n::I18n).to receive(:new).with([ENV["LANG"]].compact.uniq, root_path).and_call_original
      subject.i18n = nil
    end

    it "should set the requested locale" do
      subject.i18n_setup("lazier", root_path)
      expect(::R18n::I18n).to receive(:new).with(["it", ENV["LANG"]].compact.uniq, root_path).and_call_original
      subject.i18n = :it
    end

    it "should call the root" do
      Lazier.load!
      t = ::Object.new
      expect_any_instance_of(::R18n::I18n).to receive(:t).and_return(t)
      expect(t).to receive("ROOT")
      subject.i18n_setup("ROOT", root_path)
      subject.i18n = :it
    end

    it "should only pass valid translations" do
      subject.i18n_setup("lazier", root_path)
      expect(::R18n::I18n).to receive(:new).with([ENV["LANG"]].compact.uniq, root_path).and_call_original
      subject.i18n = "INVALID"
    end

    it "should raise an exception if no valid translation are found" do
      ENV["LANG"] = "INVALID"
      allow(::R18n::I18n).to receive(:system_locale).and_return("INVALID")
      subject.i18n_setup("ROOT", "/dev/")
      expect { subject.i18n = "INVALID" }.to raise_error(::Lazier::Exceptions::MissingTranslation)
    end
  end
end