require 'rails_helper'
require_relative '../../lib/wupee/notifier'

RSpec.describe Wupee::Notifier, type: :model do
  let!(:notif_type) { Wupee::NotificationType.create!(name: "notify_new_message") }
  let!(:user) { create :user }

  context "methods defined" do
    it { expect(subject).to respond_to(:notif_type) }
    it { expect(subject).to respond_to(:attached_object) }
    it { expect(subject).to respond_to(:receiver) }
    it { expect(subject).to respond_to(:receivers) }
    it { expect(subject).to respond_to(:deliver) }
    it { expect(subject).to respond_to(:subject_vars) }
  end

  it "has a method notif_type that can take Wupee::NotificationType instance or string/symbol as argument" do
    wupee_notifier = Wupee::Notifier.new
    wupee_notifier.notif_type(notif_type.name)
    expect(wupee_notifier.notification_type).to eq notif_type

    wupee_notifier.notif_type(notif_type)
    expect(wupee_notifier.notification_type).to eq notif_type
  end

  it "has a method execute to send notifications and mails" do
    user_1 = create :user
    user_2 = create :user
    user_3 = create :user
    user_4 = create :user

    wupee_notifier = Wupee::Notifier.new(receivers: [user_1, user_2, user_3, user_4], notif_type: notif_type)

    expect { wupee_notifier.execute }.to change { ActionMailer::Base.deliveries.size }.by(4)
    expect { wupee_notifier.execute }.to change { Wupee::Notification.where(is_read: false).count }.by(4)
    expect { wupee_notifier.execute }.to change { Wupee::Notification.count }.by(4)

    Wupee.email_sending_rule = false
    expect { wupee_notifier.execute }.not_to change { ActionMailer::Base.deliveries.size }
    expect { wupee_notifier.execute }.to change { Wupee::Notification.count }.by(4)
    
    Wupee.notification_sending_rule = false
    expect { wupee_notifier.execute }.not_to change { Wupee::Notification.wanted.count }
    expect { wupee_notifier.execute }.to change { Wupee::Notification.unwanted.count }.by(4)
end

  it "raises ArgumentError if receiver or receivers is missing" do
    expect { Wupee::Notifier.new(notif_type: notif_type).execute }.to raise_error(ArgumentError)
  end

  it "doesn't raise ArgumentError if receiver or receivers is present" do
    expect { Wupee::Notifier.new(notif_type: notif_type, receiver: user).execute }.not_to raise_error
    expect { Wupee::Notifier.new(notif_type: notif_type, receivers: user).execute }.not_to raise_error
  end

  it "doesn't raise ArgumentError if receivers is an empty array" do
    expect { Wupee::Notifier.new(notif_type: notif_type, receivers: []).execute }.not_to raise_error
  end

  it "raises ArgumentError if notif_type is missing" do
    expect { Wupee::Notifier.new(receiver: user).execute }.to raise_error(ArgumentError)
  end
end