# frozen_string_literal: true

RSpec.describe Dry::Logic::Result do
  include_context "predicates"

  describe "#to_s" do
    shared_examples_for "string representation" do
      it "returns string representation" do
        expect(rule.(input).to_s).to eql(output)
      end
    end

    context "with a predicate" do
      let(:rule) { Dry::Logic::Rule::Predicate.build(gt?, args: [18]) }
      let(:input) { 17 }
      let(:output) { "gt?(18, 17)" }

      it_behaves_like "string representation"
    end

    context "with AND operation" do
      let(:rule) do
        Dry::Logic::Rule::Predicate.build(array?).and(Dry::Logic::Rule::Predicate.build(empty?))
      end
      let(:input) { "" }
      let(:output) { 'array?("") AND empty?("")' }

      it_behaves_like "string representation"
    end

    context "with OR operation" do
      let(:rule) do
        Dry::Logic::Rule::Predicate.build(array?).or(Dry::Logic::Rule::Predicate.build(empty?))
      end
      let(:input) { 123 }
      let(:output) { "array?(123) OR empty?(123)" }

      it_behaves_like "string representation"
    end

    context "with XOR operation" do
      let(:rule) do
        Dry::Logic::Rule::Predicate.build(array?).xor(Dry::Logic::Rule::Predicate.build(empty?))
      end
      let(:input) { [] }
      let(:output) { "array?([]) XOR empty?([])" }

      it_behaves_like "string representation"
    end

    context "with THEN operation" do
      let(:rule) do
        Dry::Logic::Rule::Predicate.build(array?).then(Dry::Logic::Rule::Predicate.build(empty?))
      end
      let(:input) { [1, 2, 3] }
      let(:output) { "empty?([1, 2, 3])" }

      it_behaves_like "string representation"
    end

    context "with NOT operation" do
      let(:rule) { Dry::Logic::Operations::Negation.new(Dry::Logic::Rule::Predicate.build(array?)) }
      let(:input) { "foo" }
      let(:output) { 'not(array?("foo"))' }

      it_behaves_like "string representation"
    end
  end
end