# frozen_string_literal: true

require 'rails_helper'
require Rails.root.join 'spec/models/concerns/assignment_handler_shared.rb'
require Rails.root.join 'spec/models/concerns/auto_assignment_handler_shared.rb'

RSpec.describe Conversation do
  after do
    Current.user = nil
    Current.account = nil
  end

  describe 'associations' do
    it { is_expected.to belong_to(:account) }
    it { is_expected.to belong_to(:inbox) }
    it { is_expected.to belong_to(:contact) }
    it { is_expected.to belong_to(:contact_inbox) }
    it { is_expected.to belong_to(:assignee).optional }
    it { is_expected.to belong_to(:team).optional }
    it { is_expected.to belong_to(:campaign).optional }
  end

  describe 'concerns' do
    it_behaves_like 'assignment_handler'
    it_behaves_like 'auto_assignment_handler'
  end

  describe '.before_create' do
    let(:conversation) { build(:conversation, display_id: nil) }

    before do
      conversation.save!
      conversation.reload
    end

    it 'runs before_create callbacks' do
      expect(conversation.display_id).to eq(1)
    end

    it 'sets waiting since' do
      expect(conversation.waiting_since).not_to be_nil
    end

    it 'creates a UUID for every conversation automatically' do
      uuid_pattern = /[0-9a-f]{8}\b-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-\b[0-9a-f]{12}$/i
      expect(conversation.uuid).to match(uuid_pattern)
    end
  end

  describe '.after_create' do
    let(:account) { create(:account) }
    let(:agent) { create(:user, email: 'agent1@example.com', account: account) }
    let(:inbox) { create(:inbox, account: account) }
    let(:conversation) do
      create(
        :conversation,
        account: account,
        contact: create(:contact, account: account),
        inbox: inbox,
        assignee: nil
      )
    end

    before do
      allow(Rails.configuration.dispatcher).to receive(:dispatch)
    end

    it 'runs after_create callbacks' do
      # send_events
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::CONVERSATION_CREATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: false,
                                                                    changed_attributes: nil, performed_by: nil)
    end
  end

  describe '.validate jsonb attributes' do
    let(:account) { create(:account) }
    let(:agent) { create(:user, email: 'agent1@example.com', account: account) }
    let(:inbox) { create(:inbox, account: account) }
    let(:conversation) do
      create(
        :conversation,
        account: account,
        contact: create(:contact, account: account),
        inbox: inbox,
        assignee: nil
      )
    end

    it 'validate length of additional_attributes value' do
      conversation.additional_attributes = { company_name: 'some_company' * 200, contact_number: 19_999_999_999 }
      conversation.valid?
      error_messages = conversation.errors.messages
      expect(error_messages[:additional_attributes][0]).to eq('company_name length should be < 1500')
      expect(error_messages[:additional_attributes][1]).to eq('contact_number value should be < 9999999999')
    end

    it 'validate length of custom_attributes value' do
      conversation.custom_attributes = { company_name: 'some_company' * 200, contact_number: 19_999_999_999 }
      conversation.valid?
      error_messages = conversation.errors.messages
      expect(error_messages[:custom_attributes][0]).to eq('company_name length should be < 1500')
      expect(error_messages[:custom_attributes][1]).to eq('contact_number value should be < 9999999999')
    end
  end

  describe '.after_update' do
    let!(:account) { create(:account) }
    let!(:old_assignee) do
      create(:user, email: 'agent1@example.com', account: account, role: :agent)
    end
    let(:new_assignee) do
      create(:user, email: 'agent2@example.com', account: account, role: :agent)
    end
    let!(:conversation) do
      create(:conversation, status: 'open', account: account, assignee: old_assignee)
    end
    let(:assignment_mailer) { instance_double(AssignmentMailer, deliver: true) }
    let(:label) { create(:label, account: account) }

    before do
      create(:inbox_member, user: old_assignee, inbox: conversation.inbox)
      create(:inbox_member, user: new_assignee, inbox: conversation.inbox)
      allow(Rails.configuration.dispatcher).to receive(:dispatch)
      Current.user = old_assignee
    end

    it 'sends conversation updated event if labels are updated' do
      conversation.update(label_list: [label.title])
      changed_attributes = conversation.previous_changes
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(
          described_class::CONVERSATION_UPDATED,
          kind_of(Time),
          conversation: conversation,
          notifiable_assignee_change: false,
          changed_attributes: changed_attributes,
          performed_by: nil
        ).exactly(2).times
    end

    it 'runs after_update callbacks' do
      conversation.update(
        status: :resolved,
        contact_last_seen_at: Time.zone.now,
        assignee: new_assignee
      )
      status_change = conversation.status_change
      changed_attributes = conversation.previous_changes

      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::CONVERSATION_RESOLVED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true,
                                                                     changed_attributes: status_change, performed_by: nil)
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::CONVERSATION_READ, kind_of(Time), conversation: conversation, notifiable_assignee_change: true,
                                                                 changed_attributes: nil, performed_by: nil)
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::ASSIGNEE_CHANGED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true,
                                                                changed_attributes: changed_attributes, performed_by: nil)
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::CONVERSATION_UPDATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true,
                                                                    changed_attributes: changed_attributes, performed_by: nil)
    end

    it 'will not run conversation_updated event for empty updates' do
      conversation.save!
      expect(Rails.configuration.dispatcher).not_to have_received(:dispatch)
        .with(described_class::CONVERSATION_UPDATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true)
    end

    it 'will not run conversation_updated event for non whitelisted keys' do
      conversation.update(updated_at: DateTime.now.utc)
      expect(Rails.configuration.dispatcher).not_to have_received(:dispatch)
        .with(described_class::CONVERSATION_UPDATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true)
    end

    it 'will run conversation_updated event for conversation_language in additional_attributes' do
      conversation.additional_attributes[:conversation_language] = 'es'
      conversation.save!
      changed_attributes = conversation.previous_changes
      expect(Rails.configuration.dispatcher).to have_received(:dispatch)
        .with(described_class::CONVERSATION_UPDATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: false,
                                                                    changed_attributes: changed_attributes, performed_by: nil)
    end

    it 'will not run conversation_updated event for bowser_language in additional_attributes' do
      conversation.additional_attributes[:browser_language] = 'es'
      conversation.save!
      expect(Rails.configuration.dispatcher).not_to have_received(:dispatch)
        .with(described_class::CONVERSATION_UPDATED, kind_of(Time), conversation: conversation, notifiable_assignee_change: true)
    end

    it 'creates conversation activities' do
      conversation.update(
        status: :resolved,
        contact_last_seen_at: Time.zone.now,
        assignee: new_assignee,
        label_list: [label.title]
      )

      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id, message_type: :activity,
                              content: "#{old_assignee.name} added #{label.title}" }))
      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id, message_type: :activity,
                              content: "Conversation was marked resolved by #{old_assignee.name}" }))
      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id, message_type: :activity,
                              content: "Assigned to #{new_assignee.name} by #{old_assignee.name}" }))
    end

    it 'adds a message for system auto resolution if marked resolved by system' do
      account.update(auto_resolve_after: 40 * 24 * 60)
      conversation2 = create(:conversation, status: 'open', account: account, assignee: old_assignee)
      Current.user = nil

      message_data = if account.auto_resolve_after >= 1440 && account.auto_resolve_after % 1440 == 0
                       { key: 'auto_resolved_days', count: account.auto_resolve_after / 1440 }
                     elsif account.auto_resolve_after >= 60 && account.auto_resolve_after % 60 == 0
                       { key: 'auto_resolved_hours', count: account.auto_resolve_after / 60 }
                     else
                       { key: 'auto_resolved_minutes', count: account.auto_resolve_after }
                     end
      system_resolved_message = "Conversation was marked resolved by system due to #{message_data[:count]} days of inactivity"
      expect { conversation2.update(status: :resolved) }
        .to have_enqueued_job(Conversations::ActivityMessageJob)
        .with(conversation2, { account_id: conversation2.account_id, inbox_id: conversation2.inbox_id, message_type: :activity,
                               content: system_resolved_message })
    end
  end

  describe '#update_labels' do
    let(:account) { create(:account) }
    let(:conversation) { create(:conversation, account: account) }
    let(:agent) do
      create(:user, email: 'agent@example.com', account: account, role: :agent)
    end
    let(:first_label) { create(:label, account: account) }
    let(:second_label) { create(:label, account: account) }
    let(:third_label) { create(:label, account: account) }
    let(:fourth_label) { create(:label, account: account) }

    before do
      conversation
      Current.user = agent

      first_label
      second_label
      third_label
      fourth_label
    end

    it 'adds one label to conversation' do
      labels = [first_label].map(&:title)

      expect { conversation.update_labels(labels) }
        .to have_enqueued_job(Conversations::ActivityMessageJob)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id, message_type: :activity,
                              content: "#{agent.name} added #{labels.join(', ')}"  })

      expect(conversation.label_list).to match_array(labels)
    end

    it 'adds and removes previously added labels' do
      labels = [first_label, fourth_label].map(&:title)
      expect { conversation.update_labels(labels) }
        .to have_enqueued_job(Conversations::ActivityMessageJob)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id, message_type: :activity,
                              content: "#{agent.name} added #{labels.join(', ')}"  })
      expect(conversation.label_list).to match_array(labels)

      updated_labels = [second_label, third_label].map(&:title)
      expect(conversation.update_labels(updated_labels)).to be(true)
      expect(conversation.label_list).to match_array(updated_labels)

      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id,
                              message_type: :activity, content: "#{agent.name} added #{updated_labels.join(', ')}" }))
      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once)
        .with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id,
                              message_type: :activity, content: "#{agent.name} removed #{labels.join(', ')}" }))
    end
  end

  describe '#toggle_status' do
    it 'toggles conversation status to resolved when open' do
      conversation = create(:conversation, status: 'open')
      expect(conversation.toggle_status).to be(true)
      expect(conversation.reload.status).to eq('resolved')
    end

    it 'toggles conversation status to open when resolved' do
      conversation = create(:conversation, status: 'resolved')
      expect(conversation.toggle_status).to be(true)
      expect(conversation.reload.status).to eq('open')
    end

    it 'toggles conversation status to open when pending' do
      conversation = create(:conversation, status: 'pending')
      expect(conversation.toggle_status).to be(true)
      expect(conversation.reload.status).to eq('open')
    end

    it 'toggles conversation status to open when snoozed' do
      conversation = create(:conversation, status: 'snoozed')
      expect(conversation.toggle_status).to be(true)
      expect(conversation.reload.status).to eq('open')
    end
  end

  describe '#toggle_priority' do
    it 'defaults priority to nil when created' do
      conversation = create(:conversation, status: 'open')
      expect(conversation.priority).to be_nil
    end

    it 'toggles the priority to nil if nothing is passed' do
      conversation = create(:conversation, status: 'open', priority: 'high')
      expect(conversation.toggle_priority).to be(true)
      expect(conversation.reload.priority).to be_nil
    end

    it 'sets the priority to low' do
      conversation = create(:conversation, status: 'open')

      expect(conversation.toggle_priority('low')).to be(true)
      expect(conversation.reload.priority).to eq('low')
    end

    it 'sets the priority to medium' do
      conversation = create(:conversation, status: 'open')

      expect(conversation.toggle_priority('medium')).to be(true)
      expect(conversation.reload.priority).to eq('medium')
    end

    it 'sets the priority to high' do
      conversation = create(:conversation, status: 'open')

      expect(conversation.toggle_priority('high')).to be(true)
      expect(conversation.reload.priority).to eq('high')
    end

    it 'sets the priority to urgent' do
      conversation = create(:conversation, status: 'open')

      expect(conversation.toggle_priority('urgent')).to be(true)
      expect(conversation.reload.priority).to eq('urgent')
    end
  end

  describe '#ensure_snooze_until_reset' do
    it 'resets the snoozed_until when status is toggled' do
      conversation = create(:conversation, status: 'snoozed', snoozed_until: 2.days.from_now)
      expect(conversation.snoozed_until).not_to be_nil
      expect(conversation.toggle_status).to be(true)
      expect(conversation.reload.snoozed_until).to be_nil
    end
  end

  describe '#mute!' do
    subject(:mute!) { conversation.mute! }

    let(:user) do
      create(:user, email: 'agent2@example.com', account: create(:account), role: :agent)
    end

    let(:conversation) { create(:conversation) }

    before { Current.user = user }

    it 'marks conversation as resolved' do
      mute!
      expect(conversation.reload.resolved?).to be(true)
    end

    it 'blocks the contact' do
      mute!
      expect(conversation.reload.contact.blocked?).to be(true)
    end

    it 'creates mute message' do
      mute!
      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once).with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id,
                                                                    message_type: :activity, content: "#{user.name} has muted the conversation" }))
    end
  end

  describe '#unmute!' do
    subject(:unmute!) { conversation.unmute! }

    let(:user) do
      create(:user, email: 'agent2@example.com', account: create(:account), role: :agent)
    end

    let(:conversation) { create(:conversation).tap(&:mute!) }

    before { Current.user = user }

    it 'does not change conversation status' do
      expect { unmute! }.not_to(change { conversation.reload.status })
    end

    it 'unblocks the contact' do
      unmute!
      expect(conversation.reload.contact.blocked?).to be(false)
    end

    it 'creates unmute message' do
      unmute!
      expect(Conversations::ActivityMessageJob)
        .to(have_been_enqueued.at_least(:once).with(conversation, { account_id: conversation.account_id, inbox_id: conversation.inbox_id,
                                                                    message_type: :activity, content: "#{user.name} has unmuted the conversation" }))
    end
  end

  describe '#muted?' do
    subject(:muted?) { conversation.muted? }

    let(:conversation) { create(:conversation) }

    it 'return true if conversation is muted' do
      conversation.mute!
      expect(muted?).to be(true)
    end

    it 'returns false if conversation is not muted' do
      expect(muted?).to be(false)
    end
  end

  describe 'unread_messages' do
    subject(:unread_messages) { conversation.unread_messages }

    let(:conversation) { create(:conversation, agent_last_seen_at: 1.hour.ago) }
    let(:message_params) do
      {
        conversation: conversation,
        account: conversation.account,
        inbox: conversation.inbox,
        sender: conversation.assignee
      }
    end
    let!(:message) do
      create(:message, created_at: 1.minute.ago, **message_params)
    end

    before do
      create(:message, created_at: 1.month.ago, **message_params)
    end

    it 'returns unread messages' do
      expect(unread_messages).to include(message)
    end
  end

  describe 'recent_messages' do
    subject(:recent_messages) { conversation.recent_messages }

    let(:conversation) { create(:conversation, agent_last_seen_at: 1.hour.ago) }
    let(:message_params) do
      {
        conversation: conversation,
        account: conversation.account,
        inbox: conversation.inbox,
        sender: conversation.assignee
      }
    end
    let!(:messages) do
      create_list(:message, 10, **message_params) do |message, i|
        message.created_at = i.minute.ago
      end
    end

    it 'returns upto 5 recent messages' do
      expect(recent_messages.length).to be < 6
      expect(recent_messages).to eq messages.last(5)
    end
  end

  describe 'unread_incoming_messages' do
    subject(:unread_incoming_messages) { conversation.unread_incoming_messages }

    let(:conversation) { create(:conversation, agent_last_seen_at: 1.hour.ago) }
    let(:message_params) do
      {
        conversation: conversation,
        account: conversation.account,
        inbox: conversation.inbox,
        sender: conversation.assignee,
        created_at: 1.minute.ago
      }
    end
    let!(:message) do
      create(:message, message_type: :incoming, **message_params)
    end

    before do
      create(:message, message_type: :outgoing, **message_params)
    end

    it 'returns unread incoming messages' do
      expect(unread_incoming_messages).to contain_exactly(message)
    end

    it 'returns unread incoming messages even if the agent has not seen the conversation' do
      conversation.update!(agent_last_seen_at: nil)

      expect(unread_incoming_messages).to contain_exactly(message)
    end
  end

  describe '#push_event_data' do
    subject(:push_event_data) { conversation.push_event_data }

    let(:conversation) { create(:conversation) }
    let(:expected_data) do
      {
        additional_attributes: {},
        meta: {
          sender: conversation.contact.push_event_data,
          assignee: conversation.assignee,
          team: conversation.team,
          hmac_verified: conversation.contact_inbox.hmac_verified
        },
        id: conversation.display_id,
        messages: [],
        labels: [],
        last_activity_at: conversation.last_activity_at.to_i,
        inbox_id: conversation.inbox_id,
        status: conversation.status,
        contact_inbox: conversation.contact_inbox,
        timestamp: conversation.last_activity_at.to_i,
        can_reply: true,
        channel: 'Channel::WebWidget',
        snoozed_until: conversation.snoozed_until,
        custom_attributes: conversation.custom_attributes,
        first_reply_created_at: nil,
        contact_last_seen_at: conversation.contact_last_seen_at.to_i,
        agent_last_seen_at: conversation.agent_last_seen_at.to_i,
        created_at: conversation.created_at.to_i,
        updated_at: conversation.updated_at.to_f,
        waiting_since: conversation.waiting_since.to_i,
        priority: nil,
        unread_count: 0
      }
    end

    it 'returns push event payload' do
      expect(push_event_data).to eq(expected_data)
    end
  end

  describe 'when conversation is created by blocked contact' do
    let(:account) { create(:account) }
    let(:blocked_contact) { create(:contact, account: account, blocked: true) }
    let(:inbox) { create(:inbox, account: account) }

    it 'creates conversation in resolved state' do
      conversation = create(:conversation, account: account, contact: blocked_contact, inbox: inbox)
      expect(conversation.status).to eq('resolved')
    end
  end

  describe '#botinbox: when conversation created inside inbox with agent bot' do
    let!(:bot_inbox) { create(:agent_bot_inbox) }
    let(:conversation) { create(:conversation, inbox: bot_inbox.inbox) }

    it 'returns conversation status as pending' do
      expect(conversation.status).to eq('pending')
    end

    it 'returns conversation as open if campaign is present' do
      conversation = create(:conversation, inbox: bot_inbox.inbox, campaign: create(:campaign))
      expect(conversation.status).to eq('open')
    end
  end

  describe '#botintegration: when conversation created in inbox with dialogflow integration' do
    let(:inbox) { create(:inbox) }
    let(:hook) { create(:integrations_hook, :dialogflow, inbox: inbox) }
    let(:conversation) { create(:conversation, inbox: hook.inbox) }

    it 'returns conversation status as pending' do
      expect(conversation.status).to eq('pending')
    end
  end

  describe '#delete conversation' do
    include ActiveJob::TestHelper

    let!(:conversation) { create(:conversation) }

    let!(:notification) { create(:notification, notification_type: 'conversation_creation', primary_actor: conversation) }

    it 'delete associated notifications if conversation is deleted' do
      perform_enqueued_jobs do
        conversation.destroy!
      end

      expect { notification.reload }.to raise_error ActiveRecord::RecordNotFound
    end
  end

  describe 'validate invalid referer url' do
    let(:conversation) { create(:conversation, additional_attributes: { referer: 'javascript' }) }

    it 'returns nil' do
      expect(conversation['additional_attributes']['referer']).to be_nil
    end
  end

  describe 'validate valid referer url' do
    let(:conversation) { create(:conversation, additional_attributes: { referer: 'https://www.chatwoot.com/' }) }

    it 'returns nil' do
      expect(conversation['additional_attributes']['referer']).to eq('https://www.chatwoot.com/')
    end
  end

  describe 'custom sort option' do
    include ActiveJob::TestHelper

    let!(:conversation_7) { create(:conversation, created_at: DateTime.now - 6.days, last_activity_at: DateTime.now - 13.days) }
    let!(:conversation_6) { create(:conversation, created_at: DateTime.now - 7.days, last_activity_at: DateTime.now - 10.days) }
    let!(:conversation_5) { create(:conversation, created_at: DateTime.now - 8.days, last_activity_at: DateTime.now - 12.days, priority: :urgent) }
    let!(:conversation_4) { create(:conversation, created_at: DateTime.now - 9.days, last_activity_at: DateTime.now - 11.days, priority: :urgent) }
    let!(:conversation_3) { create(:conversation, created_at: DateTime.now - 5.days, last_activity_at: DateTime.now - 9.days, priority: :low) }
    let!(:conversation_2) { create(:conversation, created_at: DateTime.now - 3.days, last_activity_at: DateTime.now - 6.days, priority: :high) }
    let!(:conversation_1) { create(:conversation, created_at: DateTime.now - 4.days, last_activity_at: DateTime.now - 8.days, priority: :medium) }

    describe 'sort_on_created_at' do
      let(:created_desc_order) do
        [
          conversation_2.id, conversation_1.id, conversation_3.id, conversation_7.id, conversation_6.id,
          conversation_5.id, conversation_4.id
        ]
      end

      it 'returns the list in ascending order by default' do
        records = described_class.sort_on_created_at
        expect(records.map(&:id)).to eq created_desc_order.reverse
      end

      it 'returns the list in descending order if desc is passed as sort direction' do
        records = described_class.sort_on_created_at(:desc)
        expect(records.map(&:id)).to eq created_desc_order
      end
    end

    describe 'sort_on_last_activity_at' do
      let(:last_activity_asc_order) do
        [
          conversation_7.id, conversation_5.id, conversation_4.id, conversation_6.id, conversation_3.id,
          conversation_1.id, conversation_2.id
        ]
      end

      it 'returns the list in descending order by default' do
        records = described_class.sort_on_last_activity_at
        expect(records.map(&:id)).to eq last_activity_asc_order.reverse
      end

      it 'returns the list in asc order if asc is passed as sort direction' do
        records = described_class.sort_on_last_activity_at(:asc)
        expect(records.map(&:id)).to eq last_activity_asc_order
      end
    end

    context 'when last_activity_at updated by some actions' do
      before do
        create(:message, conversation_id: conversation_1.id, message_type: :incoming, created_at: DateTime.now - 8.days)
        create(:message, conversation_id: conversation_2.id, message_type: :incoming, created_at: DateTime.now - 6.days)
        create(:message, conversation_id: conversation_3.id, message_type: :incoming, created_at: DateTime.now - 2.days)
      end

      it 'sort conversations with latest resolved conversation at first' do
        records = described_class.sort_on_last_activity_at

        expect(records.first.id).to eq(conversation_3.id)

        conversation_1.toggle_status
        perform_enqueued_jobs do
          Conversations::ActivityMessageJob.perform_later(
            conversation_1,
            account_id: conversation_1.account_id,
            inbox_id: conversation_1.inbox_id,
            message_type: :activity,
            content: 'Conversation was marked resolved by system due to days of inactivity'
          )
        end
        records = described_class.sort_on_last_activity_at

        expect(records.first.id).to eq(conversation_1.id)
      end

      it 'Sort conversations with latest message' do
        create(:message, conversation_id: conversation_3.id, message_type: :incoming, created_at: DateTime.now)
        records = described_class.sort_on_last_activity_at

        expect(records.first.id).to eq(conversation_3.id)
      end
    end

    describe 'sort_on_priority' do
      it 'return list with the following order urgent > high > medium > low > nil by default' do
        # ensure they are not pre-sorted
        records = described_class.sort_on_created_at
        expect(records.pluck(:priority)).not_to eq(['urgent', 'urgent', 'high', 'medium', 'low', nil, nil])

        records = described_class.sort_on_priority
        expect(records.pluck(:priority)).to eq(['urgent', 'urgent', 'high', 'medium', 'low', nil, nil])
        expect(records.pluck(:id)).to eq(
          [
            conversation_4.id, conversation_5.id, conversation_2.id, conversation_1.id, conversation_3.id,
            conversation_6.id, conversation_7.id
          ]
        )
      end

      it 'return list with the following order low > medium > high > urgent > nil by default' do
        # ensure they are not pre-sorted
        records = described_class.sort_on_created_at
        expect(records.pluck(:priority)).not_to eq(['urgent', 'urgent', 'high', 'medium', 'low', nil, nil])

        records = described_class.sort_on_priority(:asc)
        expect(records.pluck(:priority)).to eq(['low', 'medium', 'high', 'urgent', 'urgent', nil, nil])
        expect(records.pluck(:id)).to eq(
          [
            conversation_3.id, conversation_1.id, conversation_2.id, conversation_4.id, conversation_5.id,
            conversation_6.id, conversation_7.id
          ]
        )
      end

      it 'sorts conversation with last_activity for the same priority' do
        records = described_class.where(priority: 'urgent').sort_on_priority
        # ensure that the conversation 4 last_activity_at is more recent than conversation 5
        expect(conversation_4.last_activity_at > conversation_5.last_activity_at).to be(true)
        expect(records.pluck(:priority, :id)).to eq([['urgent', conversation_4.id], ['urgent', conversation_5.id]])

        records = described_class.where(priority: nil).sort_on_priority
        # ensure that the conversation 6 last_activity_at is more recent than conversation 7
        expect(conversation_6.last_activity_at > conversation_7.last_activity_at).to be(true)
        expect(records.pluck(:priority, :id)).to eq([[nil, conversation_6.id], [nil, conversation_7.id]])
      end
    end

    describe 'sort_on_waiting_since' do
      it 'returns the list in ascending order by default' do
        records = described_class.sort_on_waiting_since
        expect(records.map(&:id)).to eq [
          conversation_4.id, conversation_5.id, conversation_6.id, conversation_7.id, conversation_3.id, conversation_1.id,
          conversation_2.id
        ]
      end

      it 'returns the list in desc order if asc is passed as sort direction' do
        records = described_class.sort_on_waiting_since(:desc)
        expect(records.map(&:id)).to eq [
          conversation_2.id, conversation_1.id, conversation_3.id, conversation_7.id, conversation_6.id, conversation_5.id,
          conversation_4.id
        ]
      end
    end
  end

  describe 'cached_label_list_array' do
    let(:conversation) { create(:conversation) }

    it 'returns the correct list of labels' do
      conversation.update(label_list: %w[customer-support enterprise paid-customer])

      expect(conversation.cached_label_list_array).to eq %w[customer-support enterprise paid-customer]
    end
  end

  describe '#last_activity_at' do
    let(:conversation) { create(:conversation) }
    let(:message_params) do
      {
        conversation: conversation,
        account: conversation.account,
        inbox: conversation.inbox,
        sender: conversation.assignee
      }
    end

    context 'when a new conversation is created' do
      it 'sets last_activity_at to the created_at time (within DB precision)' do
        expect(conversation.last_activity_at).to be_within(1.second).of(conversation.created_at)
      end
    end

    context 'when a new message is added' do
      it 'updates the last_activity_at to the new message\'s created_at time' do
        message = create(:message, created_at: 1.hour.from_now, **message_params)
        conversation.reload
        expect(conversation.last_activity_at).to be_within(1.second).of(message.created_at)
      end
    end

    context 'when multiple messages are added' do
      it 'sets last_activity_at to the most recent message\'s created_at time' do
        create(:message, created_at: 2.hours.ago, **message_params)
        latest_message = create(:message, created_at: 1.hour.from_now, **message_params)
        conversation.reload
        expect(conversation.last_activity_at).to be_within(1.second).of(latest_message.created_at)
      end
    end
  end

  describe '#can_reply?' do
    let(:conversation) { create(:conversation) }
    let(:message_window_service) { instance_double(Conversations::MessageWindowService) }

    before do
      allow(Conversations::MessageWindowService).to receive(:new).with(conversation).and_return(message_window_service)
    end

    it 'delegates to MessageWindowService' do
      allow(message_window_service).to receive(:can_reply?).and_return(true)
      expect(conversation.can_reply?).to be true
      expect(message_window_service).to have_received(:can_reply?)
    end

    it 'returns false when MessageWindowService returns false' do
      allow(message_window_service).to receive(:can_reply?).and_return(false)
      expect(conversation.can_reply?).to be false
      expect(message_window_service).to have_received(:can_reply?)
    end
  end
end