# frozen_string_literal: true

require 'rails_helper'

def create_notification(user_id, resp_code, matcher)
  notification_count = Notification.count
  post "/notifications.json",
    params: {
      notification_type: Notification.types[:mentioned],
      user_id: user_id,
      data: { message: 'tada' }.to_json
    }
  expect(response.status).to eq(resp_code)
  expect(Notification.count).public_send(matcher, eq(notification_count))
end

def update_notification(topic_id, resp_code, matcher)
  notification = Fabricate(:notification)
  put "/notifications/#{notification.id}.json", params: { topic_id: topic_id }
  expect(response.status).to eq(resp_code)
  notification.reload
  expect(notification.topic_id).public_send(matcher, eq(topic_id))
end

def delete_notification(resp_code, matcher)
  notification = Fabricate(:notification)
  notification_count = Notification.count
  delete "/notifications/#{notification.id}.json"
  expect(response.status).to eq(resp_code)
  expect(Notification.count).public_send(matcher, eq(notification_count))
end

describe NotificationsController do
  context 'when logged in' do
    context 'as normal user' do
      fab!(:user) { sign_in(Fabricate(:user)) }
      fab!(:notification) { Fabricate(:notification, user: user) }

      describe '#index' do
        it 'should succeed for recent' do
          get "/notifications", params: { recent: true }
          expect(response.status).to eq(200)
        end

        it 'should succeed for history' do
          get "/notifications.json"

          expect(response.status).to eq(200)

          notifications = response.parsed_body["notifications"]

          expect(notifications.length).to eq(1)
          expect(notifications.first["id"]).to eq(notification.id)
        end

        it 'should mark notifications as viewed' do
          expect(user.reload.unread_notifications).to eq(1)
          expect(user.reload.total_unread_notifications).to eq(1)

          get "/notifications.json", params: { recent: true }

          expect(response.status).to eq(200)
          expect(user.reload.unread_notifications).to eq(0)
          expect(user.reload.total_unread_notifications).to eq(1)
        end

        it 'should not mark notifications as viewed if silent param is present' do
          expect(user.reload.unread_notifications).to eq(1)
          expect(user.reload.total_unread_notifications).to eq(1)

          get "/notifications.json", params: { recent: true, silent: true }

          expect(response.status).to eq(200)
          expect(user.reload.unread_notifications).to eq(1)
          expect(user.reload.total_unread_notifications).to eq(1)
        end

        it 'should not mark notifications as viewed in readonly mode' do
          Discourse.received_redis_readonly!
          expect(user.reload.unread_notifications).to eq(1)
          expect(user.reload.total_unread_notifications).to eq(1)

          get "/notifications.json", params: { recent: true, silent: true }

          expect(response.status).to eq(200)
          expect(user.reload.unread_notifications).to eq(1)
          expect(user.reload.total_unread_notifications).to eq(1)
        ensure
          Discourse.clear_redis_readonly!
        end

        it "get notifications with all filters" do
          notification = Fabricate(:notification, user: user)
          notification2 = Fabricate(:notification, user: user)
          put "/notifications/mark-read.json", params: { id: notification.id }
          expect(response.status).to eq(200)

          get "/notifications.json"

          expect(response.status).to eq(200)
          expect(JSON.parse(response.body)['notifications'].length).to be >= 2

          get "/notifications.json", params: { filter: "read" }

          expect(response.status).to eq(200)
          expect(JSON.parse(response.body)['notifications'].length).to be >= 1
          expect(JSON.parse(response.body)['notifications'][0]['read']).to eq(true)

          get "/notifications.json", params: { filter: "unread" }

          expect(response.status).to eq(200)
          expect(JSON.parse(response.body)['notifications'].length).to be >= 1
          expect(JSON.parse(response.body)['notifications'][0]['read']).to eq(false)
        end

        context 'when username params is not valid' do
          it 'should raise the right error' do
            get "/notifications.json", params: { username: 'somedude' }
            expect(response.status).to eq(404)
          end
        end

        context "with notifications for inaccessible topics" do
          fab!(:sender) { Fabricate.build(:topic_allowed_user, user: Fabricate(:coding_horror)) }
          fab!(:allowed_user) { Fabricate.build(:topic_allowed_user, user: user) }
          fab!(:another_allowed_user) { Fabricate.build(:topic_allowed_user, user: Fabricate(:user)) }
          fab!(:allowed_pm) { Fabricate(:private_message_topic, topic_allowed_users: [sender, allowed_user, another_allowed_user]) }
          fab!(:forbidden_pm) { Fabricate(:private_message_topic, topic_allowed_users: [sender, another_allowed_user]) }
          fab!(:allowed_pm_notification) { Fabricate(:private_message_notification, user: user, topic: allowed_pm) }
          fab!(:forbidden_pm_notification) { Fabricate(:private_message_notification, user: user, topic: forbidden_pm) }

          def expect_correct_notifications(response)
            notification_ids = response.parsed_body["notifications"].map { |n| n["id"] }
            expect(notification_ids).to include(allowed_pm_notification.id)
            expect(notification_ids).to_not include(forbidden_pm_notification.id)
          end

          context "with 'recent' filter" do
            it "doesn't include notifications from topics the user isn't allowed to see" do
              get "/notifications.json", params: { recent: true }
              expect(response.status).to eq(200)
              expect_correct_notifications(response)
            end
          end

          context "without 'recent' filter" do
            it "doesn't include notifications from topics the user isn't allowed to see" do
              get "/notifications.json"
              expect(response.status).to eq(200)
              expect_correct_notifications(response)
            end
          end
        end
      end

      it 'should succeed' do
        put "/notifications/mark-read.json"
        expect(response.status).to eq(200)
      end

      it "can update a single notification" do
        notification2 = Fabricate(:notification, user: user)
        put "/notifications/mark-read.json", params: { id: notification.id }
        expect(response.status).to eq(200)

        notification.reload
        notification2.reload

        expect(notification.read).to eq(true)
        expect(notification2.read).to eq(false)
      end

      it "updates the `read` status" do
        expect(user.reload.unread_notifications).to eq(1)
        expect(user.reload.total_unread_notifications).to eq(1)

        put "/notifications/mark-read.json"

        expect(response.status).to eq(200)
        user.reload
        expect(user.reload.unread_notifications).to eq(0)
        expect(user.reload.total_unread_notifications).to eq(0)
      end

      describe '#create' do
        it "can't create notification" do
          create_notification(user.id, 403, :to)
        end
      end

      describe '#update' do
        it "can't update notification" do
          update_notification(Fabricate(:topic).id, 403, :to_not)
        end
      end

      describe '#destroy' do
        it "can't delete notification" do
          delete_notification(403, :to)
        end
      end
    end

    context 'as admin' do
      fab!(:admin) { sign_in(Fabricate(:admin)) }

      describe '#create' do
        it "can create notification" do
          create_notification(admin.id, 200, :to_not)
          expect(response.parsed_body["id"]).to_not eq(nil)
        end
      end

      describe '#update' do
        it "can update notification" do
          update_notification(8, 200, :to)
          expect(response.parsed_body["topic_id"]).to eq(8)
        end
      end

      describe '#destroy' do
        it "can delete notification" do
          delete_notification(200, :to_not)
        end
      end
    end
  end

  context 'when not logged in' do

    describe '#index' do
      it 'should raise an error' do
        get "/notifications.json", params: { recent: true }
        expect(response.status).to eq(403)
      end
    end

    describe '#create' do
      it "can't create notification" do
        user = Fabricate(:user)
        create_notification(user.id, 403, :to)
      end
    end

    describe '#update' do
      it "can't update notification" do
        update_notification(Fabricate(:topic).id, 403, :to_not)
      end
    end

    describe '#destroy' do
      it "can't delete notification" do
        delete_notification(403, :to)
      end
    end
  end
end