require 'rails_helper'

RSpec.describe TagManager do
  describe '#local_domain?' do
    # The following comparisons MUST be case-insensitive.

    around do |example|
      original_local_domain = Rails.configuration.x.local_domain
      Rails.configuration.x.local_domain = 'domain'

      example.run

      Rails.configuration.x.local_domain = original_local_domain
    end

    it 'returns true for nil' do
      expect(TagManager.instance.local_domain?(nil)).to eq true
    end

    it 'returns true if the slash-stripped string equals to local domain' do
      expect(TagManager.instance.local_domain?('DoMaIn/')).to eq true
    end

    it 'returns false for irrelevant string' do
      expect(TagManager.instance.local_domain?('DoMaIn!')).to eq false
    end
  end

  describe '#web_domain?' do
    # The following comparisons MUST be case-insensitive.

    around do |example|
      original_web_domain = Rails.configuration.x.web_domain
      Rails.configuration.x.web_domain = 'domain'

      example.run

      Rails.configuration.x.web_domain = original_web_domain
    end

    it 'returns true for nil' do
      expect(TagManager.instance.web_domain?(nil)).to eq true
    end

    it 'returns true if the slash-stripped string equals to web domain' do
      expect(TagManager.instance.web_domain?('DoMaIn/')).to eq true
    end

    it 'returns false for string with irrelevant characters' do
      expect(TagManager.instance.web_domain?('DoMaIn!')).to eq false
    end
  end

  describe '#normalize_domain' do
    it 'returns nil if the given parameter is nil' do
      expect(TagManager.instance.normalize_domain(nil)).to eq nil
    end

    it 'returns normalized domain' do
      expect(TagManager.instance.normalize_domain('DoMaIn/')).to eq 'domain'
    end
  end

  describe '#local_url?' do
    around do |example|
      original_local_domain = Rails.configuration.x.local_domain
      example.run
      Rails.configuration.x.local_domain = original_local_domain
    end

    it 'returns true if the normalized string with port is local URL' do
      Rails.configuration.x.local_domain = 'domain:42'
      expect(TagManager.instance.local_url?('https://DoMaIn:42/')).to eq true
    end

    it 'returns true if the normalized string without port is local URL' do
      Rails.configuration.x.local_domain = 'domain'
      expect(TagManager.instance.local_url?('https://DoMaIn/')).to eq true
    end

    it 'returns false for string with irrelevant characters' do
      Rails.configuration.x.local_domain = 'domain'
      expect(TagManager.instance.local_url?('https://domainn/')).to eq false
    end
  end

  describe '#same_acct?' do
    # The following comparisons MUST be case-insensitive.

    it 'returns true if the needle has a correct username and domain for remote user' do
      expect(TagManager.instance.same_acct?('username@domain', 'UsErNaMe@DoMaIn')).to eq true
    end

    it 'returns false if the needle is missing a domain for remote user' do
      expect(TagManager.instance.same_acct?('username@domain', 'UsErNaMe')).to eq false
    end

    it 'returns false if the needle has an incorrect domain for remote user' do
      expect(TagManager.instance.same_acct?('username@domain', 'UsErNaMe@incorrect')).to eq false
    end

    it 'returns false if the needle has an incorrect username for remote user' do
      expect(TagManager.instance.same_acct?('username@domain', 'incorrect@DoMaIn')).to eq false
    end

    it 'returns true if the needle has a correct username and domain for local user' do
      expect(TagManager.instance.same_acct?('username', 'UsErNaMe@Cb6E6126.nGrOk.Io')).to eq true
    end

    it 'returns true if the needle is missing a domain for local user' do
      expect(TagManager.instance.same_acct?('username', 'UsErNaMe')).to eq true
    end

    it 'returns false if the needle has an incorrect username for local user' do
      expect(TagManager.instance.same_acct?('username', 'UsErNaM@Cb6E6126.nGrOk.Io')).to eq false
    end

    it 'returns false if the needle has an incorrect domain for local user' do
      expect(TagManager.instance.same_acct?('username', 'incorrect@Cb6E6126.nGrOk.Io')).to eq false
    end
  end

  describe '#unique_tag' do
    it 'returns a unique tag' do
      expect(TagManager.instance.unique_tag(Time.utc(2000), 12, 'Status')).to eq 'tag:cb6e6126.ngrok.io,2000-01-01:objectId=12:objectType=Status'
    end
  end

  describe '#unique_tag_to_local_id' do
    it 'returns the ID part' do
      expect(TagManager.instance.unique_tag_to_local_id('tag:cb6e6126.ngrok.io,2000-01-01:objectId=12:objectType=Status', 'Status')).to eql '12'
    end

    it 'returns nil if it is not local id' do
      expect(TagManager.instance.unique_tag_to_local_id('tag:remote,2000-01-01:objectId=12:objectType=Status', 'Status')).to eq nil
    end

    it 'returns nil if it is not expected type' do
      expect(TagManager.instance.unique_tag_to_local_id('tag:cb6e6126.ngrok.io,2000-01-01:objectId=12:objectType=Block', 'Status')).to eq nil
    end

    it 'returns nil if it does not have object ID' do
      expect(TagManager.instance.unique_tag_to_local_id('tag:cb6e6126.ngrok.io,2000-01-01:objectType=Status', 'Status')).to eq nil
    end
  end

  describe '#local_id?' do
    it 'returns true for a local ID' do
      expect(TagManager.instance.local_id?('tag:cb6e6126.ngrok.io;objectId=12:objectType=Status')).to be true
    end

    it 'returns false for a foreign ID' do
      expect(TagManager.instance.local_id?('tag:foreign.tld;objectId=12:objectType=Status')).to be false
    end
  end

  describe '#uri_for' do
    subject { TagManager.instance.uri_for(target) }

    context 'comment object' do
      let(:target) { Fabricate(:status, created_at: '2000-01-01T00:00:00Z', reply: true) }

      it 'returns the unique tag for status' do
        expect(target.object_type).to eq :comment
        is_expected.to eq target.uri
      end
    end

    context 'note object' do
      let(:target) { Fabricate(:status, created_at: '2000-01-01T00:00:00Z', reply: false, thread: nil) }

      it 'returns the unique tag for status' do
        expect(target.object_type).to eq :note
        is_expected.to eq target.uri
      end
    end

    context 'person object' do
      let(:target) { Fabricate(:account, username: 'alice') }

      it 'returns the URL for account' do
        expect(target.object_type).to eq :person
        is_expected.to eq 'https://cb6e6126.ngrok.io/users/alice'
      end
    end
  end

  describe '#url_for' do
    let(:alice) { Fabricate(:account, username: 'alice') }

    subject { TagManager.instance.url_for(target) }

    context 'activity object' do
      let(:target) { Fabricate(:status, account: alice, reblog: Fabricate(:status)).stream_entry }

      it 'returns the unique tag for status' do
        expect(target.object_type).to eq :activity
        is_expected.to eq "https://cb6e6126.ngrok.io/@alice/#{target.id}"
      end
    end

    context 'comment object' do
      let(:target) { Fabricate(:status, account: alice, reply: true) }

      it 'returns the unique tag for status' do
        expect(target.object_type).to eq :comment
        is_expected.to eq "https://cb6e6126.ngrok.io/@alice/#{target.id}"
      end
    end

    context 'note object' do
      let(:target) { Fabricate(:status, account: alice, reply: false, thread: nil) }

      it 'returns the unique tag for status' do
        expect(target.object_type).to eq :note
        is_expected.to eq "https://cb6e6126.ngrok.io/@alice/#{target.id}"
      end
    end

    context 'person object' do
      let(:target) { alice }

      it 'returns the URL for account' do
        expect(target.object_type).to eq :person
        is_expected.to eq 'https://cb6e6126.ngrok.io/@alice'
      end
    end
  end
end