require 'rails_helper'

RSpec.describe UserPreferences, type: :model do
  let(:default_prefs) { YAML.load_file("#{Rails.root}/config/default_preferences.yml") }

  describe ".load" do
    it "provides default values when no preferences are stored yet" do
      expect(UserPreferences.load(nil)).to eq(default_prefs)
    end

    it "provides default values for unset preferences" do
      prefs = UserPreferences.load("lightning_notify_sats_received: xmpp")
      expect(prefs[:lightning_notify_sats_received]).to eq("xmpp")
      expect(prefs[:xmpp_exchange_contacts_with_invitees]).to eq(true)
    end
  end

  describe ".process" do
    it "turns all keys into strings" do
      res = UserPreferences.process({ foo: "bar" })
      expect(res[:foo]).to be(nil)
      expect(res['foo']).to eq("bar")
    end

    it "converts value 'true' to boolean" do
      res = UserPreferences.process({ lightning_notify_sats_received: "true" })
      expect(res['lightning_notify_sats_received']).to be(true)
    end

    it "converts value 'false' to boolean" do
      res = UserPreferences.process({ lightning_notify_sats_received: "false" })
      expect(res['lightning_notify_sats_received']).to be(false)
    end

    it "converts value string with integer into integer" do
      res = UserPreferences.process({ lightning_notify_sats_received_threshold: 1000 })
      expect(res['lightning_notify_sats_received_threshold']).to be_a(Integer)
      expect(res['lightning_notify_sats_received_threshold']).to eq(1000)
    end
  end

  describe ".pref_keys" do
    let(:default_prefs) { YAML.load_file("#{Rails.root}/config/default_preferences.yml") }

    it "returns the keys of all default preferences as an array of symbols" do
      expect(UserPreferences.pref_keys).to be_a(Array)
      expect(UserPreferences.pref_keys).to include(:lightning_notify_sats_received)
      expect(UserPreferences.pref_keys).to include(:xmpp_exchange_contacts_with_invitees)
      expect(UserPreferences.pref_keys.length).to eq(default_prefs.keys.length)
    end
  end
end