require "rails_helper"

RSpec.describe Validations::FinancialValidations do
  subject(:financial_validator) { validator_class.new }

  let(:validator_class) { Class.new { include Validations::FinancialValidations } }
  let(:record) { FactoryBot.create(:case_log) }

  describe "earnings and income frequency" do
    it "when earnings are provided it validates that income frequency must be provided" do
      record.earnings = 500
      record.incfreq = nil
      financial_validator.validate_net_income(record)
      expect(record.errors["incfreq"])
        .to include(match I18n.t("validations.financial.earnings.freq_missing"))
    end

    it "when income frequency is provided it validates that earnings must be provided" do
      record.earnings = nil
      record.incfreq = 0
      financial_validator.validate_net_income(record)
      expect(record.errors["earnings"])
        .to include(match I18n.t("validations.financial.earnings.earnings_missing"))
    end
  end

  describe "benefits proportion validations" do
    context "when the proportion is all" do
      it "validates that the lead tenant is not in full time employment" do
        record.benefits = 0
        record.ecstat1 = 1
        financial_validator.validate_net_income_uc_proportion(record)
        expect(record.errors["benefits"]).to include(match I18n.t("validations.financial.benefits.part_or_full_time"))
      end

      it "validates that the lead tenant is not in part time employment" do
        record.benefits = 0
        record.ecstat1 = 0
        financial_validator.validate_net_income_uc_proportion(record)
        expect(record.errors["benefits"]).to include(match I18n.t("validations.financial.benefits.part_or_full_time"))
      end

      it "expects that the lead tenant is not in full-time or part-time employment" do
        record.benefits = 0
        record.ecstat1 = 4
        financial_validator.validate_net_income_uc_proportion(record)
        expect(record.errors["benefits"]).to be_empty
      end

      it "validates that the tenant's partner is not in full time employment" do
        record.benefits = 0
        record.ecstat2 = 0
        record.relat2 = 0
        financial_validator.validate_net_income_uc_proportion(record)
        expect(record.errors["benefits"]).to include(match I18n.t("validations.financial.benefits.part_or_full_time"))
      end

      it "expects that the tenant's partner is not in full-time or part-time employment" do
        record.benefits = 0
        record.ecstat2 = 4
        record.relat2 = 0
        financial_validator.validate_net_income_uc_proportion(record)
        expect(record.errors["benefits"]).to be_empty
      end
    end
  end

  describe "outstanding rent amount validations" do
    context "when outstanding rent or charges is no" do
      it "validates that no shortfall is provided" do
        record.hbrentshortfall = 1
        record.tshortfall = 99
        financial_validator.validate_outstanding_rent_amount(record)
        expect(record.errors["tshortfall"])
          .to include(match I18n.t("validations.financial.tshortfall.outstanding_amount_not_required"))
      end
    end

    context "when outstanding rent or charges is yes" do
      it "expects that a shortfall is provided" do
        record.hbrentshortfall = 0
        record.tshortfall = 99
        financial_validator.validate_outstanding_rent_amount(record)
        expect(record.errors["tshortfall"]).to be_empty
      end
    end
  end

  describe "housing benefit rent shortfall validations" do
    context "when shortfall is yes" do
      it "validates that housing benefit is not none" do
        record.hbrentshortfall = 0
        record.hb = 9
        financial_validator.validate_tshortfall(record)
        expect(record.errors["tshortfall"])
          .to include(match I18n.t("validations.financial.hbrentshortfall.outstanding_no_benefits"))
      end

      it "validates that housing benefit is not don't know" do
        record.hbrentshortfall = 0
        record.hb = 3
        financial_validator.validate_tshortfall(record)
        expect(record.errors["tshortfall"])
          .to include(match I18n.t("validations.financial.hbrentshortfall.outstanding_no_benefits"))
      end

      it "validates that housing benefit is not Universal Credit without housing benefit" do
        record.hbrentshortfall = 0
        record.hb = 7
        financial_validator.validate_tshortfall(record)
        expect(record.errors["tshortfall"])
          .to include(match I18n.t("validations.financial.hbrentshortfall.outstanding_no_benefits"))
      end

      it "validates that housing benefit is provided" do
        record.hbrentshortfall = 0
        record.hb = 1
        financial_validator.validate_tshortfall(record)
        expect(record.errors["tshortfall"]).to be_empty
      end
    end
  end

  describe "Net income validations" do
    it "validates that the net income is within the expected range for the tenant's employment status" do
      record.earnings = 200
      record.incfreq = 0
      record.ecstat1 = 1
      financial_validator.validate_net_income(record)
      expect(record.errors["earnings"]).to be_empty
    end

    context "when the net income is higher than the hard max for their employment status" do
      it "adds an error" do
        record.earnings = 5000
        record.incfreq = 0
        record.ecstat1 = 1
        financial_validator.validate_net_income(record)
        expect(record.errors["earnings"])
          .to include(match I18n.t("validations.financial.earnings.over_hard_max", hard_max: 1230))
      end
    end

    context "when the net income is lower than the hard min for their employment status" do
      it "adds an error" do
        record.earnings = 50
        record.incfreq = 0
        record.ecstat1 = 1
        financial_validator.validate_net_income(record)
        expect(record.errors["earnings"])
          .to include(match I18n.t("validations.financial.earnings.under_hard_min", hard_min: 90))
      end
    end
  end

  describe "financial validations" do
    context "when currency is negative" do
      it "returns error" do
        record.earnings = -8
        record.brent = -2
        record.scharge = -134
        record.pscharge = -10_024
        record.supcharg = -1

        financial_validator.validate_negative_currency(record)
        expect(record.errors["earnings"])
          .to include(match I18n.t("validations.financial.negative_currency"))
        expect(record.errors["brent"])
          .to include(match I18n.t("validations.financial.negative_currency"))
        expect(record.errors["scharge"])
          .to include(match I18n.t("validations.financial.negative_currency"))
        expect(record.errors["pscharge"])
          .to include(match I18n.t("validations.financial.negative_currency"))
        expect(record.errors["supcharg"])
          .to include(match I18n.t("validations.financial.negative_currency"))
      end
    end

    context "when the field allows decimals" do
      it "correctly co-erces values" do
        record.brent = "20"
        record.pscharge = "0.0"
        record.period = "2"
        financial_validator.validate_numeric_min_max(record)
        expect(record.errors["pscharge"]).to be_empty
      end
    end
  end
end