require "rails_helper"

RSpec.describe Validations::SharedValidations do
  subject(:shared_validator) { validator_class.new }

  let(:validator_class) { Class.new { include Validations::SharedValidations } }
  let(:lettings_log) { FactoryBot.create(:lettings_log) }
  let(:sales_log) { FactoryBot.create(:sales_log, :completed) }
  let(:fake_2021_2022_form) { Form.new("spec/fixtures/forms/2021_2022.json") }

  describe "numeric min max validations" do
    before do
      allow(FormHandler.instance).to receive(:current_lettings_form).and_return(fake_2021_2022_form)
    end

    context "when validating age" do
      it "validates that person 1's age is a number" do
        lettings_log.age1 = "random"
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age1"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Lead tenant’s age", min: 16, max: 120))
      end

      it "validates that other household member ages are a number" do
        lettings_log.age2 = "random"
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age2"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Person 2’s age", min: 1, max: 120))
      end

      it "validates that person 1's age is greater than 16" do
        lettings_log.age1 = 15
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age1"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Lead tenant’s age", min: 16, max: 120))
      end

      it "validates that other household member ages are greater than 1" do
        lettings_log.age2 = 0
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age2"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Person 2’s age", min: 1, max: 120))
      end

      it "validates that person 1's age is less than 121" do
        lettings_log.age1 = 121
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age1"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Lead tenant’s age", min: 16, max: 120))
      end

      it "validates that other household member ages are greater than 121" do
        lettings_log.age2 = 123
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age2"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Person 2’s age", min: 1, max: 120))
      end

      it "validates that person 1's age is between 16 and 120" do
        lettings_log.age1 = 63
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age1"]).to be_empty
      end

      it "validates that other household member ages are between 1 and 120" do
        lettings_log.age6 = 45
        shared_validator.validate_numeric_min_max(lettings_log)
        expect(lettings_log.errors["age6"]).to be_empty
      end

      context "with sales log" do
        it "validates that person 2's age is between 0 and 110 for non joint purchase" do
          sales_log.jointpur = 2
          sales_log.hholdcount = 1
          sales_log.details_known_2 = 1
          sales_log.age2 = 130
          shared_validator.validate_numeric_min_max(sales_log)
          expect(sales_log.errors["age2"].first).to eq("Person 2’s age must be between 0 and 110")
        end

        it "validates that buyer 2's age is between 0 and 110 for joint purchase" do
          sales_log.jointpur = 1
          sales_log.age2 = 130
          shared_validator.validate_numeric_min_max(sales_log)
          expect(sales_log.errors["age2"].first).to eq("Buyer 2’s age must be between 0 and 110")
        end
      end
    end

    it "adds the correct validation text when a question has a min but not a max" do
      sales_log.savings = -10
      shared_validator.validate_numeric_min_max(sales_log)
      expect(sales_log.errors["savings"]).to include(match I18n.t("validations.numeric.above_min", field: "Buyer’s total savings before any deposit paid", min: "£0"))
    end

    context "when validating percent" do
      it "validates that suffixes are added in the error message" do
        sales_log.ownershipsch = 1
        sales_log.staircase = 1
        sales_log.stairbought = 150
        shared_validator.validate_numeric_min_max(sales_log)
        expect(sales_log.errors["stairbought"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Percentage bought in this staircasing transaction", min: "0%", max: "100%"))
      end
    end

    context "when validating price" do
      it "validates that prefix £ and delimeter ',' is added in the error message" do
        sales_log.income1 = -5
        shared_validator.validate_numeric_min_max(sales_log)
        expect(sales_log.errors["income1"])
          .to include(match I18n.t("validations.numeric.within_range", field: "Buyer 1’s gross annual income", min: "£0", max: "£999,999"))
      end
    end
  end

  describe "validating level of accuracy or rounding for numeric questions" do
    context "when validating a question with a step of 1" do
      it "adds an error if input is a decimal" do
        sales_log.income1 = 30_000.5
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors[:income1]).to include I18n.t("validations.numeric.whole_number", field: "Buyer 1’s gross annual income")
      end

      it "adds an error if the user attempts to input a number in exponent format" do
        sales_log.income1 = "3e5"
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors[:income1]).to include I18n.t("validations.numeric.whole_number", field: "Buyer 1’s gross annual income")
      end

      it "does not add an error if input is an integer" do
        sales_log.income1 = 30_000
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors).to be_empty
      end
    end

    context "when validating a question with a step of 10" do
      it "adds an error if input is not a multiple of ten" do
        sales_log.savings = 30_005
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors[:savings]).to include I18n.t("validations.numeric.nearest_ten", field: "Buyer’s total savings before any deposit paid")
      end

      it "adds an error if the user attempts to input a number in exponent format" do
        sales_log.savings = "3e5"
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors[:savings]).to include I18n.t("validations.numeric.nearest_ten", field: "Buyer’s total savings before any deposit paid")
      end

      it "does not add an error if input is a multiple of ten" do
        sales_log.savings = 30_000
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors).to be_empty
      end
    end

    context "when validating a question with a step of 0.01" do
      it "adds an error if input has more than 2 decimal places" do
        sales_log.mscharge = 30.7418
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors[:mscharge]).to include I18n.t("validations.numeric.nearest_hundredth", field: "Monthly leasehold charges")
      end

      it "does not add an error if the user attempts to input a number in exponent format" do
        sales_log.mscharge = "3e1"
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors).to be_empty
      end

      it "does not add an error if input has 2 or fewer decimal places" do
        sales_log.mscharge = 30.74
        shared_validator.validate_numeric_step(sales_log)
        expect(sales_log.errors).to be_empty
      end
    end
  end
end