require 'rails_helper'

RSpec.describe 'Wiki creation freeze', type: :request do
  include TagGroupRecords
  include WikiRecords

  let!(:user) { create_member_user! }
  let(:headers) { { 'X-Transfer-Code' => user.inheritance_code } }

  it 'updates an independent group without implicitly creating a legacy page' do
    id = seed_group(name: 'independent', description: 'before')
    expect do
      put "/tag_groups/#{ id }", params: {
          name: 'independent', description: 'after', members: [], placements: [] },
          headers:, as: :json
    end.to change(WikiPage, :count).by(0)
        .and change(WikiRevision, :count).by(0)
        .and change(WikiVersion, :count).by(0)
    expect(response).to have_http_status(:ok)
    expect(TagGroup.find(id).description).to eq('after')
  end

  context 'existing description write protection' do
    let!(:tag) { create(:tag, primary_name: 'protected_description') }
    let!(:page) do
      seed_wiki_page(tag_name: tag.tag_name('ja'), body: 'before', created_by_user: user)
    end

    [nil, :guest, :banned].each do |role|
      it "rejects #{ role || 'anonymous' } without changing either history" do
        actor = role && create(:user, role == :banned ? :member : role)
        actor.update!(banned_at: Time.current) if role == :banned
        request_headers = actor ? { 'X-Transfer-Code' => actor.inheritance_code } : { }
        before_state = group_state
        put "/wiki/#{ page.id }", params: { title: tag.name('ja'), body: 'after' },
            headers: request_headers
        expect(response).to have_http_status(role ? :forbidden : :unauthorized)
        expect(group_state).to eq(before_state)
      end
    end

    it 'rejects banned IPs without writes' do
      IpAddress.create!(ip_address: IPAddr.new('127.0.0.1').hton, banned_at: Time.current)
      before_state = group_state
      put "/wiki/#{ page.id }", params: { title: tag.name('ja'), body: 'after' }, headers: headers
      expect(response).to have_http_status(:forbidden)
      expect(group_state).to eq(before_state)
    end

    ['', "\r\n\r\n"].each do |body|
      it "rejects invalid description body #{ body.inspect } atomically" do
        before_state = group_state
        put "/wiki/#{ page.id }", params: { title: tag.name('ja'), body: }, headers: headers
        expect(response).to have_http_status(:unprocessable_entity)
        expect(group_state).to eq(before_state)
      end
    end
  end
end