require 'rails_helper'

RSpec.describe ActivityPub::Activity::Flag do
  let(:sender)  { Fabricate(:account, username: 'example.com', domain: 'example.com', uri: 'http://example.com/actor') }
  let(:flagged) { Fabricate(:account) }
  let(:status)  { Fabricate(:status, account: flagged, uri: 'foobar') }
  let(:flag_id) { nil }

  let(:json) do
    {
      '@context': 'https://www.w3.org/ns/activitystreams',
      id: flag_id,
      type: 'Flag',
      content: 'Boo!!',
      actor: ActivityPub::TagManager.instance.uri_for(sender),
      object: [
        ActivityPub::TagManager.instance.uri_for(flagged),
        ActivityPub::TagManager.instance.uri_for(status),
      ],
    }.with_indifferent_access
  end

  describe '#perform' do
    subject { described_class.new(json, sender) }

    context 'when the reported status is public' do
      before do
        subject.perform
      end

      it 'creates a report' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment).to eq 'Boo!!'
        expect(report.status_ids).to eq [status.id]
      end
    end

    context 'when the report comment is excessively long' do
      subject do
        described_class.new({
          '@context': 'https://www.w3.org/ns/activitystreams',
          id: flag_id,
          type: 'Flag',
          content: long_comment,
          actor: ActivityPub::TagManager.instance.uri_for(sender),
          object: [
            ActivityPub::TagManager.instance.uri_for(flagged),
            ActivityPub::TagManager.instance.uri_for(status),
          ],
        }.with_indifferent_access, sender)
      end

      let(:long_comment) { Faker::Lorem.characters(number: 6000) }

      before do
        subject.perform
      end

      it 'creates a report but with a truncated comment' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment.length).to eq 5000
        expect(report.comment).to eq long_comment[0...5000]
        expect(report.status_ids).to eq [status.id]
      end
    end

    context 'when the reported status is private and should not be visible to the remote server' do
      let(:status) { Fabricate(:status, account: flagged, uri: 'foobar', visibility: :private) }

      before do
        subject.perform
      end

      it 'creates a report with no attached status' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment).to eq 'Boo!!'
        expect(report.status_ids).to eq []
      end
    end

    context 'when the reported status is private and the author has a follower on the remote instance' do
      let(:status) { Fabricate(:status, account: flagged, uri: 'foobar', visibility: :private) }
      let(:follower) { Fabricate(:account, domain: 'example.com', uri: 'http://example.com/users/account') }

      before do
        follower.follow!(flagged)
        subject.perform
      end

      it 'creates a report with the attached status' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment).to eq 'Boo!!'
        expect(report.status_ids).to eq [status.id]
      end
    end

    context 'when the reported status is private and the author mentions someone else on the remote instance' do
      let(:status) { Fabricate(:status, account: flagged, uri: 'foobar', visibility: :private) }
      let(:mentioned) { Fabricate(:account, domain: 'example.com', uri: 'http://example.com/users/account') }

      before do
        status.mentions.create(account: mentioned)
        subject.perform
      end

      it 'creates a report with the attached status' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment).to eq 'Boo!!'
        expect(report.status_ids).to eq [status.id]
      end
    end

    context 'when the reported status is private and the author mentions someone else on the local instance' do
      let(:status) { Fabricate(:status, account: flagged, uri: 'foobar', visibility: :private) }
      let(:mentioned) { Fabricate(:account) }

      before do
        status.mentions.create(account: mentioned)
        subject.perform
      end

      it 'creates a report with no attached status' do
        report = Report.find_by(account: sender, target_account: flagged)

        expect(report).to_not be_nil
        expect(report.comment).to eq 'Boo!!'
        expect(report.status_ids).to eq []
      end
    end
  end

  describe '#perform with a defined uri' do
    subject { described_class.new(json, sender) }
    let (:flag_id) { 'http://example.com/reports/1' }

    before do
      subject.perform
    end

    it 'creates a report' do
      report = Report.find_by(account: sender, target_account: flagged)

      expect(report).to_not be_nil
      expect(report.comment).to eq 'Boo!!'
      expect(report.status_ids).to eq [status.id]
      expect(report.uri).to eq flag_id
    end
  end
end