require File.expand_path("../../../base", __FILE__)

require "vagrant/util/platform"

describe Vagrant::Util::Platform do
  include_context "unit"


  subject { described_class }

  describe "#cygwin_path" do
    let(:path) { "C:\\msys2\\home\\vagrant" }
    let(:updated_path) { "/home/vagrant" }
    let(:subprocess_result) do
      double("subprocess_result").tap do |result|
        allow(result).to receive(:exit_code).and_return(0)
        allow(result).to receive(:stdout).and_return(updated_path)
      end
    end

    it "takes a windows path and returns a formatted path" do
      allow(Vagrant::Util::Which).to receive(:which).and_return("C:/msys2/cygpath")
      allow(Vagrant::Util::Subprocess).to receive(:execute).and_return(subprocess_result)

      expect(Vagrant::Util::Subprocess).to receive(:execute).with("C:\\msys2\\cygpath", "-u", "-a", "C:\\msys2\\home\\vagrant")

      expect(subject.cygwin_path(path)).to eq("/home/vagrant")
    end
  end

  describe "#msys_path" do
    let(:updated_path) { "/home/vagrant" }
    let(:subprocess_result) do
      double("subprocess_result").tap do |result|
        allow(result).to receive(:exit_code).and_return(0)
        allow(result).to receive(:stdout).and_return(updated_path)
      end
    end
    let(:old_path) { "/old/path/bin:/usr/local/bin:/usr/bin" }

    it "takes a windows path and returns a formatted path" do
      path = ENV["PATH"]
      allow(Vagrant::Util::Which).to receive(:which).and_return("C:/msys2/cygpath")
      allow(Vagrant::Util::Subprocess).to receive(:execute).and_return(subprocess_result)
      allow(ENV).to receive(:[]).with("PATH").and_return(path)
      allow(ENV).to receive(:[]).with("VAGRANT_OLD_ENV_PATH").and_return(old_path)

      expect(Vagrant::Util::Subprocess).to receive(:execute).with("C:\\msys2\\cygpath", "-u", "-a", path)

      expect(subject.msys_path(path)).to eq("/home/vagrant")
      expect(ENV["PATH"]).to eq(path)
    end
  end

  describe "#cygwin?" do
    before do
      allow(subject).to receive(:platform).and_return("test")
      described_class.reset!
    end

    after do
      described_class.reset!
    end

    around do |example|
      with_temp_env(VAGRANT_DETECTED_OS: "nope", PATH: "") do
        example.run
      end
    end

    it "returns true if VAGRANT_DETECTED_OS includes cygwin" do
      with_temp_env(VAGRANT_DETECTED_OS: "cygwin") do
        expect(subject).to be_cygwin
      end
    end

    it "returns true if OSTYPE includes cygwin" do
      with_temp_env(OSTYPE: "cygwin") do
        expect(subject).to be_cygwin
      end
    end

    it "returns true if platform has cygwin" do
      allow(subject).to receive(:platform).and_return("cygwin")
      expect(subject).to be_cygwin
    end

    it "returns false if the PATH contains cygwin" do
      with_temp_env(PATH: "C:/cygwin") do
        expect(subject).to_not be_cygwin
      end
    end

    it "returns false if nothing is available" do
      expect(subject).to_not be_cygwin
    end
  end

  describe "#msys?" do
    before do
      allow(subject).to receive(:platform).and_return("test")
      described_class.reset!
    end

    after do
      described_class.reset!
    end

    around do |example|
      with_temp_env(VAGRANT_DETECTED_OS: "nope", PATH: "") do
        example.run
      end
    end

    it "returns true if VAGRANT_DETECTED_OS includes msys" do
      with_temp_env(VAGRANT_DETECTED_OS: "msys") do
        expect(subject).to be_msys
      end
    end

    it "returns true if OSTYPE includes msys" do
      with_temp_env(OSTYPE: "msys") do
        expect(subject).to be_msys
      end
    end

    it "returns true if platform has msys" do
      allow(subject).to receive(:platform).and_return("msys")
      expect(subject).to be_msys
    end

    it "returns false if the PATH contains msys" do
      with_temp_env(PATH: "C:/msys") do
        expect(subject).to_not be_msys
      end
    end

    it "returns false if nothing is available" do
      expect(subject).to_not be_msys
    end
  end

  describe "#fs_real_path" do
    it "fixes drive letters on Windows", :windows do
      expect(described_class.fs_real_path("c:/foo").to_s).to eql("C:/foo")
    end
  end

  describe "#windows_unc_path" do
    it "correctly converts a path" do
      expect(described_class.windows_unc_path("c:/foo").to_s).to eql("\\\\?\\c:\\foo")
    end

    context "when given a UNC path" do
      let(:unc_path){ "\\\\srvname\\path" }

      it "should not modify the path" do
        expect(described_class.windows_unc_path(unc_path).to_s).to eql(unc_path)
      end
    end
  end

  describe ".systemd?" do
    before{ allow(subject).to receive(:windows?).and_return(false) }
    after{ subject.reset! }

    context "on windows" do
      before{ expect(subject).to receive(:windows?).and_return(true) }

      it "should return false" do
        expect(subject.systemd?).to be_falsey
      end
    end

    it "should return true if systemd is in use" do
      expect(Vagrant::Util::Subprocess).to receive(:execute).and_return(double(:result, stdout: "systemd"))
      expect(subject.systemd?).to be_truthy
    end

    it "should return false if systemd is not in use" do
      expect(Vagrant::Util::Subprocess).to receive(:execute).and_return(double(:result, stdout: "other"))
      expect(subject.systemd?).to be_falsey
    end
  end

  describe ".wsl_validate_matching_vagrant_versions!" do
    let(:exe_version){ Vagrant::VERSION.to_s }

    before do
      allow(Vagrant::Util::Which).to receive(:which).and_return(true)
      allow(Vagrant::Util::Subprocess).to receive(:execute).with("vagrant.exe", "version").
        and_return(double(exit_code: 0, stdout: "Installed Version: #{exe_version}"))
    end

    it "should not raise an error" do
      Vagrant::Util::Platform.wsl_validate_matching_vagrant_versions!
    end

    context "when windows vagrant.exe is not installed" do
      before{ expect(Vagrant::Util::Which).to receive(:which).with("vagrant.exe").and_return(nil) }

      it "should not raise an error" do
        Vagrant::Util::Platform.wsl_validate_matching_vagrant_versions!
      end
    end

    context "when versions do not match" do
      let(:exe_version){ "1.9.9" }

      it "should raise an error" do
        expect {
          Vagrant::Util::Platform.wsl_validate_matching_vagrant_versions!
        }.to raise_error(Vagrant::Errors::WSLVagrantVersionMismatch)
      end
    end
  end

  describe ".windows_hyperv_enabled?" do
    it "should return true if enabled" do
      allow(Vagrant::Util::PowerShell).to receive(:execute_cmd).and_return('Enabled')

      expect(Vagrant::Util::Platform.windows_hyperv_enabled?).to be_truthy
    end

    it "should return false if disabled" do
      Vagrant::Util::Platform.reset!
      allow(Vagrant::Util::PowerShell).to receive(:execute_cmd).and_return('Disabled')

      expect(Vagrant::Util::Platform.windows_hyperv_enabled?).to be_falsey
    end
  end
end