require 'rails_helper'

RSpec.describe Paper do
  context "Validations" do
    it { should validate_presence_of(:name) }
    it { should validate_length_of(:name).is_at_most(1000) } 
    
    it { should validate_presence_of(:url) }
    it { should validate_length_of(:url).is_at_most(1000) }
    
    context "URL uniqueness" do
      subject { FactoryBot.build(:paper) }
      it { should validate_uniqueness_of(:url) }
    end
    
    it "validate url format sane" do
      expected_error = "ist keine gültige URL"
      paper = FactoryBot.build(:paper, url: "wtf")
      expect(paper).not_to be_valid, "Expected paper to not be valid with invalid URL"
      expect(paper.errors[:url]).not_to be_empty
      expect(paper.errors[:url]).to include(expected_error), "Expected #{paper.errors[:url]} to include \"#{expected_error}\""
    end

    it { should validate_presence_of(:reference) }
    it { should validate_length_of(:reference).is_at_most(100) }

    it { should validate_presence_of(:body) }
    it { should validate_length_of(:body).is_at_most(100) }

    it { should validate_presence_of(:content) }
    it { should validate_length_of(:content).is_at_most(100_000) }

    it { should validate_presence_of(:originator) }
    it { should validate_length_of(:originator).is_at_most(300) }

    it { should validate_presence_of(:paper_type) }
    it { should validate_length_of(:paper_type).is_at_most(50) }

    context "published_at" do
      it { should validate_presence_of(:published_at) }
      it "validate date is parseable" do
        expected_error = "ist kein gültiges Datum"
        paper = FactoryBot.build(:paper, published_at: "fubar")
        expect(paper).not_to be_valid
        expect(paper.errors[:published_at]).not_to be_empty
        expect(paper.errors[:published_at]).to include(expected_error), "Expected #{paper.errors[:published_at]} to include \"#{expected_error}\""
      end
    end

    it { should validate_length_of(:resolution).is_at_most(30_000) }
  end
end