require 'rails_helper'

RSpec.describe CompaniesController do
  let(:valid_attributes) do
    { name: "Test Company", entity: "Corp", id_number: "123456" }
  end

  let(:invalid_attributes) do
    { name: "Test Company", id_number: "invalid-format" * 100 } # Extremely long value
  end

  describe "GET #index" do
    it "returns a success response" do
      Company.create! valid_attributes
      get :index
      expect(response).to be_successful
    end
  end

  describe "GET #show" do
    it "returns a success response" do
      company = Company.create! valid_attributes
      get :show, params: { id: company.to_param }
      expect(response).to be_successful
    end
  end

  describe "GET #new" do
    it "returns a success response" do
      get :new
      expect(response).to be_successful
    end
  end

  describe "GET #edit" do
    it "returns a success response" do
      company = Company.create! valid_attributes
      get :edit, params: { id: company.to_param }
      expect(response).to be_successful
    end
  end

  describe "POST #create" do
    context "with valid params" do
      it "creates a new Company" do
        expect do
          post :create, params: { company: valid_attributes }
        end.to change(Company, :count).by(1)
      end

      it "redirects to the created company" do
        post :create, params: { company: valid_attributes }
        expect(response).to redirect_to(Company.last)
      end
    end

    context "with invalid params" do
      it "handles invalid attributes appropriately" do
        post :create, params: { company: invalid_attributes }
        expect(response.status).to be_in([200, 302, 422])
      end
    end
  end

  describe "PUT #update" do
    context "with valid params" do
      let(:new_attributes) do
        { name: "Updated Company Name" }
      end

      it "updates the requested company" do
        company = Company.create! valid_attributes
        put :update, params: { id: company.to_param, company: new_attributes }
        company.reload
        expect(company.name).to eq("Updated Company Name")
      end

      it "redirects to the company" do
        company = Company.create! valid_attributes
        put :update, params: { id: company.to_param, company: new_attributes }
        expect(response).to redirect_to(company)
      end
    end

    context "with invalid params" do
      it "handles invalid attributes appropriately" do
        company = Company.create! valid_attributes
        put :update, params: { id: company.to_param, company: invalid_attributes }
        expect(response.status).to be_in([200, 302, 422])
      end
    end
  end

  describe "DELETE #destroy" do
    it "destroys the requested company" do
      company = Company.create! valid_attributes
      expect do
        delete :destroy, params: { id: company.to_param }
      end.to change(Company, :count).by(-1)
    end

    it "redirects to the companies list" do
      company = Company.create! valid_attributes
      delete :destroy, params: { id: company.to_param }
      expect(response).to redirect_to(companies_url)
    end
  end
end