require "helper"
require "inspec/utils/nginx_parser"

describe NginxParser do
  def parse(c)
    NginxParser.new.parse(c)
  end

  def parsestr(c)
    parse(c).to_s
  end

  def parse_file(f)
    parse(File.read(f))
  end

  it "parses an empty nginx file" do
    _(parsestr("")).must_equal ""
  end

  it "parses a file with a comment" do
    _(parsestr("# some nice comment")).must_equal "# some nice comment"
  end

  it "parses a simple assignment" do
    _(parsestr("assignment a;")).must_equal "[{:assignment=>{:identifier=>\"assignment\"@0, :args=>[{:value=>\"a\"@11}]}}]"
  end

  it "parses an assignment with a single quoted value" do
    result = parse("include '/a/b/c/*.conf';")
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal "/a/b/c/*.conf"
  end

  it "parses an assignment with a double quoted value" do
    result = parse('include "/a/b/c/*.conf";')
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal "/a/b/c/*.conf"
  end

  it "parses an assignemnt with single quote in a double quoted value" do
    result = parse('include "/a/\'b/*.conf";')
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal "/a/'b/*.conf"
  end

  it "parses an assignemnt with double quote in a single quoted value" do
    result = parse("include '/a/\"b/*.conf';")
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal "/a/\"b/*.conf"
  end

  it "parses an assignemnt with single quote in a single quoted value" do
    result = parse("include '/a/\\\'b/*.conf';")
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal "/a/\\\'b/*.conf"
  end

  it "parses an assignemnt with double quote in a double quoted value" do
    result = parse('include "/a/\"b/*.conf";')
    result[0][:assignment][:identifier].must_equal "include"
    result[0][:assignment][:args][0][:value].must_equal '/a/\"b/*.conf'
  end

  it "parses an empty group" do
    _(parsestr("group {}")).must_equal "[{:section=>{:identifier=>\"group\"@0}, :args=>\"\", :expressions=>[]}]"
  end

  it "parses a group with parameters" do
    _(parsestr("group a b {}")).must_equal "[{:section=>{:identifier=>\"group\"@0}, :args=>[{:value=>\"a\"@6}, {:value=>\"b\"@8}], :expressions=>[]}]"
  end

  it "parses a group with a body" do
    _(parsestr("group {\na b;\n}")).must_equal "[{:section=>{:identifier=>\"group\"@0}, :args=>\"\", :expressions=>[{:assignment=>{:identifier=>\"a\"@8, :args=>[{:value=>\"b\"@10}]}}]}]"
  end

  it "parses a group with arguments and a body" do
    _(parsestr("group c {\na b;\n}")).must_equal "[{:section=>{:identifier=>\"group\"@0}, :args=>[{:value=>\"c\"@6}], :expressions=>[{:assignment=>{:identifier=>\"a\"@10, :args=>[{:value=>\"b\"@12}]}}]}]"
  end

  it "parses nested groups" do
    _(parsestr("f {g {h {\n# comment\n}}}")).must_equal "[{:section=>{:identifier=>\"f\"@0}, :args=>\"\", :expressions=>[{:section=>{:identifier=>\"g\"@3}, :args=>\"\", :expressions=>[{:section=>{:identifier=>\"h\"@6}, :args=>\"\", :expressions=>[]}]}]}]"
  end

  it "parses quoted identifiers for assignments" do
    _(parsestr(%{"~^\/opcache-api" 1;})).must_equal "[{:assignment=>{:identifier=>\"~^/opcache-api\"@1, :args=>[{:value=>\"1\"@17}]}}]"
  end
end

describe NginxTransform do
  def parse(c)
    NginxTransform.new.apply(NginxParser.new.parse(c))
  end

  it "transforms and empty file" do
    _(parse("")).must_equal ""
  end

  it "transforms an assignment" do
    _(parse("a b;")).must_equal [NginxTransform::Exp.new("a", ["b"])]
  end

  it "transforms an empty group" do
    _(parse("group {}")).must_equal [NginxTransform::Group.new("group", "", [])]
  end

  it "transforms a simple group" do
    _(parse("group a {\na b;\n}")).must_equal [NginxTransform::Group.new("group", ["a"], [NginxTransform::Exp.new("a", ["b"])])]
  end

  it "transforms a deeply nested group" do
    _(parse("f { g { h {\na b;\n}}}")).must_equal [
      NginxTransform::Group.new("f", "", [
        NginxTransform::Group.new("g", "", [
          NginxTransform::Group.new("h", "", [NginxTransform::Exp.new("a", ["b"])])
        ])
      ])
    ]
  end
end