require "../../spec_helper"
require "../../../src/ameba/cli/cmd"

module Ameba::Cli
  describe "Cmd" do
    describe ".run" do
      it "runs ameba" do
        r = Cli.run %w(-f silent -c spec/fixtures/config.yml spec/fixtures/source.cr)
        r.should be_nil
      end
    end

    describe ".parse_args" do
      %w(-s --silent).each do |flag|
        it "accepts #{flag} flag" do
          c = Cli.parse_args [flag]
          c.formatter.should eq :silent
        end
      end

      %w(-c --config).each do |flag|
        it "accepts #{flag} flag" do
          c = Cli.parse_args [flag, "config.yml"]
          c.config.should eq Path["config.yml"]
        end
      end

      %w(-f --format).each do |flag|
        it "accepts #{flag} flag" do
          c = Cli.parse_args [flag, "my-formatter"]
          c.formatter.should eq "my-formatter"
        end
      end

      it "accepts --only flag" do
        c = Cli.parse_args ["--only", "RULE1,RULE2"]
        c.only.should eq %w(RULE1 RULE2)
      end

      it "accepts --except flag" do
        c = Cli.parse_args ["--except", "RULE1,RULE2"]
        c.except.should eq %w(RULE1 RULE2)
      end

      it "defaults rules? flag to false" do
        c = Cli.parse_args %w(spec/fixtures/source.cr)
        c.rules?.should be_false
      end

      it "defaults skip_reading_config? flag to false" do
        c = Cli.parse_args %w(spec/fixtures/source.cr)
        c.skip_reading_config?.should be_false
      end

      it "accepts --rules flag" do
        c = Cli.parse_args %w(--rules)
        c.rules?.should eq true
      end

      it "defaults all? flag to false" do
        c = Cli.parse_args %w(spec/fixtures/source.cr)
        c.all?.should be_false
      end

      it "accepts --all flag" do
        c = Cli.parse_args %w(--all)
        c.all?.should eq true
      end

      it "accepts --gen-config flag" do
        c = Cli.parse_args %w(--gen-config)
        c.formatter.should eq :todo
      end

      it "accepts --no-color flag" do
        c = Cli.parse_args %w(--no-color)
        c.colors?.should be_false
      end

      it "accepts --without-affected-code flag" do
        c = Cli.parse_args %w(--without-affected-code)
        c.without_affected_code?.should be_true
      end

      it "doesn't disable colors by default" do
        c = Cli.parse_args %w(--all)
        c.colors?.should be_true
      end

      it "ignores --config if --gen-config flag passed" do
        c = Cli.parse_args %w(--gen-config --config my_config.yml)
        c.formatter.should eq :todo
        c.skip_reading_config?.should be_true
      end

      describe "-e/--explain" do
        it "configures file/line/column" do
          c = Cli.parse_args %w(--explain spec/fixtures/source.cr:3:5)

          location_to_explain = c.location_to_explain.should_not be_nil
          location_to_explain[:file].should eq "spec/fixtures/source.cr"
          location_to_explain[:line].should eq 3
          location_to_explain[:column].should eq 5
        end

        it "raises an error if location is not valid" do
          expect_raises(Exception, "location should have PATH:line:column") do
            Cli.parse_args %w(--explain spec/fixtures/source.cr:3)
          end
        end

        it "raises an error if line number is not valid" do
          expect_raises(Exception, "location should have PATH:line:column") do
            Cli.parse_args %w(--explain spec/fixtures/source.cr:a:3)
          end
        end

        it "raises an error if column number is not valid" do
          expect_raises(Exception, "location should have PATH:line:column") do
            Cli.parse_args %w(--explain spec/fixtures/source.cr:3:&)
          end
        end

        it "raises an error if line/column are missing" do
          expect_raises(Exception, "location should have PATH:line:column") do
            Cli.parse_args %w(--explain spec/fixtures/source.cr)
          end
        end
      end

      context "--fail-level" do
        it "configures fail level Convention" do
          c = Cli.parse_args %w(--fail-level convention)
          c.fail_level.should eq Severity::Convention
        end

        it "configures fail level Warning" do
          c = Cli.parse_args %w(--fail-level Warning)
          c.fail_level.should eq Severity::Warning
        end

        it "configures fail level Error" do
          c = Cli.parse_args %w(--fail-level error)
          c.fail_level.should eq Severity::Error
        end

        it "raises if fail level is incorrect" do
          expect_raises(Exception, "Incorrect severity name JohnDoe") do
            Cli.parse_args %w(--fail-level JohnDoe)
          end
        end
      end

      it "accepts unknown args as globs" do
        c = Cli.parse_args %w(source1.cr source2.cr)
        c.globs.should eq %w(source1.cr source2.cr)
      end

      it "accepts one unknown arg as explain location if it has correct format" do
        c = Cli.parse_args %w(source.cr:3:22)

        location_to_explain = c.location_to_explain.should_not be_nil
        location_to_explain[:file].should eq "source.cr"
        location_to_explain[:line].should eq 3
        location_to_explain[:column].should eq 22
      end

      it "allows args to be blank" do
        c = Cli.parse_args [] of String
        c.formatter.should be_nil
        c.globs.should be_nil
        c.only.should be_nil
        c.except.should be_nil
        c.config.should be_nil
      end
    end
  end
end