# frozen_string_literal: true

require_relative "../../../helper"
require "versions/v1/quote/base"

module Versions
  class V1 < Roda
    module Quote
      describe Base do
        let(:klass) do
          Class.new(Base)
        end

        let(:date) do
          Date.today
        end

        let(:quote) do
          klass.new(date:)
        end

        it "requires data" do
          _ { quote.perform }.must_raise(NotImplementedError)
        end

        it "does not know how to format result" do
          _ { quote.formatted }.must_raise(NotImplementedError)
        end

        it "does not know how to generate a cache key" do
          _ { quote.cache_key }.must_raise(NotImplementedError)
        end

        it "defaults base to Euro" do
          _(quote.base).must_equal("EUR")
        end

        it "defaults amount to 1" do
          _(quote.amount).must_equal(1)
        end

        describe "when given data" do
          before do
            def quote.fetch_data
              []
            end
          end

          it "performs" do
            assert quote.perform
          end

          it "performs only once" do
            quote.perform

            refute quote.perform
          end
        end

        describe "without rebasing" do
          let(:amount) { 1.0 }
          let(:quote) do
            klass.new(date:, amount:, base: "EUR")
          end

          before do
            def quote.fetch_data
              [{ date:, quote: "INR", rate: 82.1234 }]
            end
          end

          it "does not round rates" do
            quote.perform

            _(quote.result[date.to_s]["INR"]).must_equal(82.1234)
          end
        end

        describe "when rebasing from an unavailable currency" do
          let(:quote) do
            klass.new(date:, base: "ILS")
          end

          before do
            def quote.fetch_data
              [{ date:, quote: "USD", rate: 1 }]
            end
          end

          it "finds nothing" do
            quote.perform

            _(quote.not_found?).must_equal(true)
          end
        end

        describe "when rebasing and converting to an unavailable currency" do
          let(:quote) do
            klass.new(date:, base: "USD", symbols: ["FOO"])
          end

          before do
            def quote.fetch_data
              [{ date:, quote: "USD", rate: 1 }]
            end
          end

          it "finds nothing" do
            quote.perform

            _(quote.not_found?).must_equal(true)
          end
        end
      end
    end
  end
end