require 'rails_helper'

describe Whatsapp::IncomingMessageBaileysService do
  describe '#perform' do
    let(:webhook_verify_token) { 'valid_token' }
    let!(:whatsapp_channel) do
      create(:channel_whatsapp,
             provider: 'baileys',
             provider_config: { webhook_verify_token: webhook_verify_token },
             validate_provider_config: false,
             received_messages: false)
    end
    let(:inbox) { whatsapp_channel.inbox }

    context 'when webhook verify token is invalid' do
      it 'raises an InvalidWebhookVerifyToken error' do
        params = { webhookVerifyToken: 'invalid_token' }

        expect do
          described_class.new(inbox: inbox, params: params).perform
        end.to(raise_error { |error| expect(error.class.name).to eq('Whatsapp::IncomingMessageBaileysService::InvalidWebhookVerifyToken') })
      end
    end

    context 'when event is blank' do
      it 'returns early and does nothing' do
        params = {
          webhookVerifyToken: webhook_verify_token,
          event: '',
          data: { connection: 'open' }
        }
        service = described_class.new(inbox: inbox, params: params)
        allow(service).to receive(:respond_to?)

        service.perform

        expect(service).not_to have_received(:respond_to?)
      end
    end

    context 'when data is blank' do
      it 'returns early and does nothing' do
        params = {
          webhookVerifyToken: webhook_verify_token,
          event: 'connection.update',
          data: {}
        }
        service = described_class.new(inbox: inbox, params: params)
        allow(service).to receive(:respond_to?)

        service.perform

        expect(service).not_to have_received(:respond_to?)
      end
    end

    context 'when event is unsupported' do
      it 'logs a warning message' do
        params = {
          webhookVerifyToken: webhook_verify_token,
          event: 'unsupported.event',
          data: 'some-data'
        }
        allow(Rails.logger).to receive(:warn).with('Baileys unsupported event: unsupported.event')

        described_class.new(inbox: inbox, params: params).perform

        expect(Rails.logger).to have_received(:warn)
      end
    end

    it 'dispatches the provider.event_received event' do
      params = {
        webhookVerifyToken: webhook_verify_token,
        event: 'some.event',
        data: 'some-data'
      }
      allow(Rails.configuration.dispatcher).to receive(:dispatch)

      described_class.new(inbox: inbox, params: params).perform

      expect(Rails.configuration.dispatcher).to have_received(:dispatch).with(
        Events::Types::PROVIDER_EVENT_RECEIVED,
        kind_of(Time),
        inbox: inbox,
        event: params[:event],
        payload: params[:data]
      )
    end

    context 'when processing connection.update event' do
      let(:base_params) { { webhookVerifyToken: webhook_verify_token, event: 'connection.update' } }

      it 'updates the channel provider_connection' do
        params = base_params.merge(
          {
            data: {
              connection: 'open',
              qrDataUrl: 'data:image/jpeg;base64,',
              error: 'wrong_phone_number'
            }
          }
        )

        described_class.new(inbox: inbox, params: params).perform

        expect(inbox.channel.provider_connection).to include(
          'connection' => 'open',
          'qr_data_url' => 'data:image/jpeg;base64,',
          'error' => I18n.t('errors.inboxes.channel.provider_connection.wrong_phone_number')
        )
      end

      it "logs an error message if there's an error" do
        params = base_params.merge(
          {
            data: { error: 'wrong_phone_number' }
          }
        )
        allow(Rails.logger).to receive(:error).with('Baileys connection error: wrong_phone_number')

        described_class.new(inbox: inbox, params: params).perform

        expect(Rails.logger).to have_received(:error)
      end

      it "keeps connection value if it's not present in the data" do
        inbox.channel.update_provider_connection!(connection: 'connecting')
        params = base_params.merge(
          {
            data: { qrDataUrl: 'data:image/jpeg;base64,' }
          }
        )

        described_class.new(inbox: inbox, params: params).perform

        expect(inbox.channel.provider_connection['connection']).to eq('connecting')
      end

      it "removes qr_data_url value if it's not present in the data" do
        inbox.channel.update_provider_connection!(qr_data_url: 'data:image/jpeg;base64,')
        params = base_params.merge(
          {
            data: { connection: 'open' }
          }
        )

        described_class.new(inbox: inbox, params: params).perform

        expect(inbox.channel.provider_connection['qr_data_url']).to be_nil
      end

      it "removes error value if it's not present in the data" do
        inbox.channel.update_provider_connection!(error: 'wrong_phone_number')
        params = base_params.merge(
          {
            data: { connection: 'open' }
          }
        )

        described_class.new(inbox: inbox, params: params).perform

        expect(inbox.channel.provider_connection['error']).to be_nil
      end
    end

    context 'when processing messages.upsert event' do
      # NOTE: We always try fetching profile picture for new contacts on messages.upsert, so we must stub this request.
      before { stub_profile_pic_fetch }

      let(:timestamp) { Time.current.to_i }
      let(:raw_message) do
        {
          key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false, addressingMode: 'lid' },
          pushName: 'John Doe',
          messageTimestamp: timestamp,
          message: { conversation: 'Hello from Baileys' }
        }
      end
      let(:params) do
        {
          webhookVerifyToken: webhook_verify_token,
          event: 'messages.upsert',
          data: {
            type: 'notify',
            messages: [raw_message]
          }
        }
      end

      it 'creates message with external_created_at' do
        described_class.new(inbox: inbox, params: params).perform

        conversation = inbox.conversations.last
        message = conversation.messages.last

        expect(message).to be_present
        expect(message.content_attributes[:external_created_at]).to eq(timestamp)
      end

      context 'when updating contact avatar' do
        it 'enqueues avatar job when profile picture is available' do
          stub_profile_pic_fetch('https://example.com/avatar.jpg')

          described_class.new(inbox: inbox, params: params).perform

          conversation = inbox.conversations.last
          contact = conversation.contact

          expect(Avatar::AvatarFromUrlJob).to have_been_enqueued.with(contact, 'https://example.com/avatar.jpg')
        end

        it 'does not enqueue avatar job when contact already has avatar attached' do
          stub_profile_pic_fetch('https://example.com/avatar.jpg')
          contact = create(:contact, account: inbox.account, name: 'John Doe', phone_number: '+5511912345678')
          contact.avatar.attach(io: Rails.root.join('spec/assets/avatar.png').open, filename: 'avatar.png', content_type: 'image/png')

          described_class.new(inbox: inbox, params: params).perform

          expect(Avatar::AvatarFromUrlJob).not_to have_been_enqueued
        end

        it 'does not enqueue avatar job when profile picture is not available' do
          described_class.new(inbox: inbox, params: params).perform

          expect(Avatar::AvatarFromUrlJob).not_to have_been_enqueued
        end

        it 'logs error and does not enqueue avatar job when profile picture request fails' do
          allow(Rails.logger).to receive(:error)
          stub_request(:get, /profile-picture-url/)
            .to_raise(StandardError.new('Profile picture request failed'))

          described_class.new(inbox: inbox, params: params).perform

          expect(Avatar::AvatarFromUrlJob).not_to have_been_enqueued
          expect(Rails.logger).to have_received(:error).with('Failed to fetch profile picture for 5511912345678: Profile picture request failed')
        end
      end

      context 'when message type is unsupported' do
        it 'creates message with is_unsupported' do
          raw_message[:message] = { unsupported: 'message' }

          described_class.new(inbox: inbox, params: params).perform

          conversation = inbox.conversations.last
          message = conversation.messages.last

          expect(message).to be_present
          expect(message.content_attributes[:is_unsupported]).to be(true)
        end
      end

      context 'when message is protocol message' do
        it 'does not create contact inbox nor message' do
          raw_message[:message] = { protocolMessage: { type: 1 } }

          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.messages).to be_empty
          expect(inbox.contact_inboxes).to be_empty
        end

        it 'does not call channel received_messages method' do
          raw_message[:message] = { protocolMessage: { type: 1 } }

          allow(inbox.channel).to receive(:received_messages)

          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.channel).not_to have_received(:received_messages)
        end
      end

      context 'when message is context message' do
        it 'does not create contact inbox nor message' do
          raw_message[:message] = { 'messageContextInfo': { 'deviceListMetadata': {},
                                                            'deviceListMetadataVersion': 2,
                                                            'messageSecret': '********' } }
          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.messages).to be_empty
          expect(inbox.contact_inboxes).to be_empty
        end
      end

      context 'when message is edited message' do
        it 'does not create contact inbox nor message' do
          raw_message[:message] = { editedMessage: { message: { protocolMessage: { editedMessage: { documentMessage: 1 } } } } }

          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.messages).to be_empty
          expect(inbox.contact_inboxes).to be_empty
        end
      end

      context 'when message is not from a user' do
        it 'does not create a conversation' do
          raw_message[:key][:remoteJid] = 'status@broadcast'

          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.conversations).to be_empty
        end
      end

      context 'when message is saved' do
        it 'calls channel received_messages method' do
          allow(inbox.channel).to receive(:received_messages)

          described_class.new(inbox: inbox, params: params).perform

          conversation = inbox.conversations.last
          message = conversation.messages.last

          expect(inbox.channel).to have_received(:received_messages).with([message], conversation)
        end

        it 'does not call channel received_messages method if message is outgoing' do
          raw_message[:key][:fromMe] = true
          create(:account_user, account: inbox.account)

          allow(inbox.channel).to receive(:received_messages)

          described_class.new(inbox: inbox, params: params).perform

          expect(inbox.channel).not_to have_received(:received_messages)
        end
      end

      context 'when message type is text' do
        context 'when has key conversation' do # rubocop:disable RSpec/NestedGroups
          it 'creates an incoming message' do
            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            message = conversation.messages.last

            expect(message).to be_present
            expect(message.content).to eq('Hello from Baileys')
            expect(message.sender).to be_present
            expect(message.sender.name).to eq('John Doe')
            expect(message.message_type).to eq('incoming')
          end

          it 'creates an outgoing message' do
            raw_message[:key][:fromMe] = true
            create(:account_user, account: inbox.account)

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            message = conversation.messages.last

            expect(message).to be_present
            expect(message.content).to eq('Hello from Baileys')
            expect(conversation.contact.name).to eq('5511912345678')
            expect(message.message_type).to eq('outgoing')
          end

          it 'updates the contact name when name is the phone number and message has a pushName' do
            create(:contact, account: inbox.account, name: '5511912345678')

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            expect(conversation.contact.name).to eq('John Doe')
          end

          it 'updates the contact name when name is the phone number and message has a verifiedBizName' do
            raw_message[:verifiedBizName] = 'Verified John'
            create(:contact, account: inbox.account, name: '5511912345678')

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            expect(conversation.contact.name).to eq('Verified John')
          end

          it 'creates contact with LID only when phone number is not present' do
            raw_message[:key][:remoteJid] = '87654321@lid'
            raw_message[:key][:remoteJidAlt] = nil

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            contact = conversation.contact
            contact_inbox = conversation.contact_inbox

            expect(contact).to be_present
            expect(contact.phone_number).to be_nil
            expect(contact.identifier).to eq('87654321@lid')
            expect(contact.name).to eq('John Doe')
            expect(contact_inbox.source_id).to eq('87654321')
          end

          it 'creates contact with phone number as name on outgoing message' do
            raw_message[:key][:fromMe] = true
            create(:account_user, account: inbox.account)

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            expect(conversation.contact.name).to eq('5511912345678')
          end

          it 'creates contact with phone number as name on incoming message if pushName is not present' do
            raw_message[:pushName] = nil
            create(:account_user, account: inbox.account)

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            expect(conversation.contact.name).to eq('5511912345678')
          end

          it 'migrates existing phone-based contact inbox to LID-based when receiving message with LID' do
            contact = create(:contact, account: inbox.account, name: 'Existing Contact', phone_number: '+5511912345678')
            contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact, source_id: '5511912345678')

            described_class.new(inbox: inbox, params: params).perform

            contact_inbox.reload
            contact.reload

            expect(contact_inbox.source_id).to eq('12345678')
            expect(contact.identifier).to eq('12345678@lid')
            expect(contact.phone_number).to eq('+5511912345678')
          end

          it 'creates a message on an existing conversation' do
            contact = create(:contact, account: inbox.account, name: 'John Doe')
            contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')
            existing_conversation = create(:conversation, inbox: inbox, contact_inbox: contact_inbox)

            described_class.new(inbox: inbox, params: params).perform

            message = existing_conversation.messages.last
            expect(message.sender).to eq(contact)
          end

          it 'does not create a message if it already exists' do
            message = create(:message, inbox: inbox, source_id: 'msg_123')

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            messages = conversation.messages
            expect(messages).to eq([message])
          end

          it 'does not create duplicate message when source_id is set after contact lock is acquired' do
            # This tests the race condition fix:
            # 1. Agent sends message from Chatwoot (message created without source_id)
            # 2. Webhook arrives before source_id is saved
            # 3. Webhook handler times out on channel lock and proceeds
            # 4. Inside contact lock, we re-check for message by source_id
            # 5. By then, source_id should be set, so duplicate is prevented

            # Create contact and conversation that will be found
            contact = create(:contact, account: inbox.account, identifier: '12345678@lid', phone_number: '+5511912345678')
            contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')
            conversation = create(:conversation, inbox: inbox, contact_inbox: contact_inbox, contact: contact)

            # Simulate the race: message exists but will only be found on the re-check inside contact lock
            existing_message = create(:message, inbox: inbox, conversation: conversation)

            # First call returns nil (simulating message not having source_id yet)
            # Second call (inside contact lock) returns the message
            service = described_class.new(inbox: inbox, params: params)
            call_count = 0
            allow(service).to receive(:find_message_by_source_id).and_wrap_original do |_method, _source_id|
              call_count += 1
              call_count == 1 ? nil : existing_message
            end

            service.perform

            # Should not create a new conversation or message
            expect(inbox.conversations.count).to eq(1)
            expect(inbox.messages.count).to eq(1)
          end

          it 'does not create a message if it is already being processed' do
            # Simulate lock already acquired by returning false from SETNX
            allow(Redis::Alfred).to receive(:set)
              .with(format_message_source_key('msg_123'), true, nx: true, ex: 1.day)
              .and_return(false)

            described_class.new(inbox: inbox, params: params).perform

            expect(inbox.conversations).to be_empty
          end

          it 'caches and clears message source id in Redis' do
            # Allow all Redis::Alfred calls (contact lock uses different keys)
            allow(Redis::Alfred).to receive(:set).and_call_original
            allow(Redis::Alfred).to receive(:delete).and_call_original

            # Stub message lock specifically
            allow(Redis::Alfred).to receive(:set)
              .with(format_message_source_key('msg_123'), true, nx: true, ex: 1.day)
              .and_return(true)
            allow(Redis::Alfred).to receive(:delete).with(format_message_source_key('msg_123'))

            described_class.new(inbox: inbox, params: params).perform

            expect(Redis::Alfred).to have_received(:set).with(format_message_source_key('msg_123'), true, nx: true, ex: 1.day)
            expect(Redis::Alfred).to have_received(:delete).with(format_message_source_key('msg_123'))
          end

          it 'clears lock even when an exception occurs after acquiring it' do
            # Bug: no ensure block meant exceptions left lock stuck forever
            # Fix: use ensure block to always clear lock when acquired
            # Allow all Redis::Alfred calls (contact lock uses different keys)
            allow(Redis::Alfred).to receive(:set).and_call_original
            allow(Redis::Alfred).to receive(:delete).and_call_original

            # Stub message lock specifically
            allow(Redis::Alfred).to receive(:set)
              .with(format_message_source_key('msg_123'), true, nx: true, ex: 1.day)
              .and_return(true)
            allow(Redis::Alfred).to receive(:delete).with(format_message_source_key('msg_123'))

            service = described_class.new(inbox: inbox, params: params)
            allow(service).to receive(:handle_create_message).and_raise(StandardError, 'simulated error')

            expect { service.perform }.to raise_error(StandardError, 'simulated error')

            expect(Redis::Alfred).to have_received(:delete).with(format_message_source_key('msg_123'))
          end
        end

        context 'when is a extendedTextMessage that has key text' do # rubocop:disable RSpec/NestedGroups
          it 'creates an incoming message' do
            raw_message[:message] = { extendedTextMessage: { text: 'Hello from Baileys' } }

            described_class.new(inbox: inbox, params: params).perform

            conversation = inbox.conversations.last
            message = conversation.messages.last
            expect(message).to be_present
            expect(message.content).to eq('Hello from Baileys')
            expect(message.message_type).to eq('incoming')
            expect(message.sender).to be_present
            expect(message.sender.name).to eq('John Doe')
          end
        end
      end

      context 'when message type is reaction' do
        let!(:message) do
          contact = create(:contact, account: inbox.account, name: '5511912345678')
          contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')
          conversation = create(:conversation, inbox: inbox, contact_inbox: contact_inbox)
          create(:message, inbox: inbox, conversation: conversation, source_id: 'msg_123')
        end

        it 'creates the reaction' do
          raw_message[:key][:id] = 'reaction_123'
          raw_message[:message] = {
            reactionMessage: {
              key: { remoteJid: '12345678@lid', fromMe: true, id: 'msg_123' },
              text: '👍'
            }
          }

          described_class.new(inbox: inbox, params: params).perform

          reaction = message.conversation.messages.last
          expect(reaction.is_reaction).to be(true)
          expect(reaction.in_reply_to).to eq(message.id)
          expect(reaction.in_reply_to_external_id).to eq(message.source_id)
        end

        it 'does not create the reaction if content is empty' do
          raw_message[:key][:id] = 'reaction_123'
          raw_message[:message] = {
            reactionMessage: {
              key: { remoteJid: '12345678@lid', fromMe: true, id: 'msg_123' },
              text: ''
            }
          }

          described_class.new(inbox: inbox, params: params).perform

          expect(message.conversation.messages.count).to eq(1)
        end
      end

      context 'when message type is image' do
        let(:params) do
          {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [
                {
                  key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false,
                         addressingMode: 'lid' },
                  message: { imageMessage: { caption: 'Hello from Baileys', mimetype: 'image/png' } },
                  pushName: 'John Doe'
                }
              ]
            }
          }
        end

        it 'creates the message with caption' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          expect(message.content).to eq('Hello from Baileys')
        end

        it 'creates message attachment' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          attachment = message.attachments.last
          expect(attachment.file_type).to eq('image')
          expect(attachment.file.filename.to_s).to eq("image_msg_123_#{Time.current.strftime('%Y%m%d')}.png")
          expect(attachment.file.content_type).to eq('image/png')
        end

        it 'sets message as unsupported and logs error if attachment download fails' do
          allow(Down).to receive(:download).and_raise(Down::ResponseError.new('Attachment not found'))
          allow(Rails.logger).to receive(:error).with('Failed to download attachment for message msg_123: Attachment not found')

          described_class.new(inbox: inbox, params: params).perform

          expect(Rails.logger).to have_received(:error)
          message = inbox.conversations.last.messages.last
          expect(message).to be_present
          expect(message.is_unsupported).to be(true)
        end
      end

      context 'when message type is video' do
        let(:params) do
          {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [
                {
                  key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false,
                         addressingMode: 'lid' },
                  message: { videoMessage: { caption: 'Hello from Baileys', mimetype: 'video/mp4' } },
                  pushName: 'John Doe'
                }
              ]
            }
          }
        end

        it 'creates the message with caption' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last

          expect(message).to be_present
          expect(message.content).to eq('Hello from Baileys')
        end

        it 'creates message attachment' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          attachment = message.attachments.last
          expect(attachment.file_type).to eq('video')
          expect(attachment.file.filename.to_s).to eq("video_msg_123_#{Time.current.strftime('%Y%m%d')}.mp4")
          expect(attachment.file.content_type).to eq('video/mp4')
        end
      end

      context 'when message type is file' do
        let(:filename) { 'file.pdf' }
        let(:params) do
          {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [
                {
                  key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false,
                         addressingMode: 'lid' },
                  message: { documentMessage: { fileName: filename } },
                  pushName: 'John Doe'
                }
              ]
            }
          }
        end

        it 'creates message attachment' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          attachment = message.attachments.last
          expect(attachment.file_type).to eq('file')
          expect(attachment.file.filename.to_s).to eq(filename)
          expect(attachment.file.content_type).to eq('application/pdf')
        end

        it 'creates the message with caption' do
          params[:data][:messages].first[:message] = {
            documentWithCaptionMessage: {
              message: {
                documentMessage: {
                  fileName: filename,
                  caption: 'Hello from Baileys'
                }
              }
            }
          }
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          expect(message).to be_present
          expect(message.content).to eq('Hello from Baileys')
        end
      end

      context 'when message type is audio' do
        let(:params) do
          {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [
                {
                  key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false,
                         addressingMode: 'lid' },
                  message: { audioMessage: { mimetype: 'audio/opus' } },
                  pushName: 'John Doe'
                }
              ]
            }
          }
        end

        it 'creates message attachment' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          attachment = message.attachments.last
          expect(attachment.file_type).to eq('audio')
          expect(attachment.file.filename.to_s).to eq("audio_msg_123_#{Time.current.strftime('%Y%m%d')}.opus")
          expect(attachment.file.content_type).to eq('audio/opus')
        end
      end

      context 'when message type is sticker' do
        let(:params) do
          {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [
                {
                  key: { id: 'msg_123', remoteJid: '12345678@lid', remoteJidAlt: '5511912345678@s.whatsapp.net', fromMe: false,
                         addressingMode: 'lid' },
                  message: { stickerMessage: { mimetype: 'image/png' } },
                  pushName: 'John Doe'
                }
              ]
            }
          }
        end

        it 'creates message attachment' do
          stub_download

          described_class.new(inbox: inbox, params: params).perform

          message = inbox.conversations.last.messages.last
          attachment = message.attachments.last
          expect(attachment.file_type).to eq('image')
          expect(attachment.file.filename.to_s).to eq("image_msg_123_#{Time.current.strftime('%Y%m%d')}.png")
          expect(attachment.file.content_type).to eq('image/png')
        end
      end

      context 'when processing multiple messages' do
        it 'creates separate contacts and conversations for each message' do
          raw_message1 = {
            key: { id: 'msg_123', remoteJid: '5511912345678@s.whatsapp.net', remoteJidAlt: '12345678@lid', fromMe: false, addressingMode: 'pn' },
            pushName: 'John Doe',
            messageTimestamp: timestamp,
            message: { conversation: 'Hello from Baileys' }
          }
          raw_message2 = {
            key: { id: 'msg_124', remoteJid: '5511987654321@s.whatsapp.net', remoteJidAlt: '87654321@lid', fromMe: false, addressingMode: 'pn' },
            pushName: 'Jane Doe',
            messageTimestamp: timestamp,
            message: { conversation: 'Hello from another user' }
          }
          params = {
            webhookVerifyToken: webhook_verify_token,
            event: 'messages.upsert',
            data: {
              type: 'notify',
              messages: [raw_message1, raw_message2]
            }
          }

          described_class.new(inbox: inbox, params: params).perform

          conversations = inbox.conversations.order(:created_at)
          expect(conversations.count).to eq(2)

          first_conversation = conversations.first
          first_message = first_conversation.messages.last
          expect(first_conversation.contact.name).to eq('John Doe')
          expect(first_message.source_id).to eq('msg_123')
          expect(first_message.content).to eq('Hello from Baileys')

          second_conversation = conversations.second
          second_message = second_conversation.messages.last
          expect(second_conversation.contact.name).to eq('Jane Doe')
          expect(second_message.source_id).to eq('msg_124')
          expect(second_message.content).to eq('Hello from another user')
        end
      end

      context 'when jid type is lid' do
        it 'processes the message with phone number from addressingMode pn' do
          raw_message[:key][:remoteJid] = '5511912345678@s.whatsapp.net'
          raw_message[:key][:remoteJidAlt] = '12345678@lid'
          raw_message[:key][:addressingMode] = 'pn'

          described_class.new(inbox: inbox, params: params).perform

          conversation = inbox.conversations.last
          message = conversation.messages.last

          expect(message).to be_present
          expect(conversation.contact.phone_number).to eq('+5511912345678')
        end
      end

      it 'skips message if LID cannot be extracted' do
        raw_message[:key][:remoteJid] = 'invalid_jid'
        raw_message[:key][:remoteJidAlt] = nil
        raw_message[:key][:addressingMode] = 'lid'

        described_class.new(inbox: inbox, params: params).perform

        expect(inbox.conversations).to be_empty
      end

      context 'when handling LID field' do
        it 'creates contact with LID as source_id and identifier' do
          described_class.new(inbox: inbox, params: params).perform

          contact = inbox.contacts.last
          contact_inbox = inbox.contact_inboxes.last

          expect(contact.identifier).to eq('12345678@lid')
          expect(contact_inbox.source_id).to eq('12345678')
        end

        it 'updates existing contact_inbox from phone to LID source_id' do
          contact = create(:contact, account: inbox.account, phone_number: '+5511912345678', identifier: nil)
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '5511912345678')

          described_class.new(inbox: inbox, params: params).perform

          contact_inbox = inbox.contact_inboxes.find_by(contact: contact)
          expect(contact_inbox.source_id).to eq('12345678')
          expect(contact.reload.identifier).to eq('12345678@lid')
          expect(contact.phone_number).to eq('+5511912345678')
        end

        it 'does not update contact_inbox if source_id is already LID' do
          contact = create(:contact, account: inbox.account, phone_number: '+5511912345678', identifier: '12345678@lid')
          contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact_inbox.reload.source_id).to eq('12345678')
          expect(contact.reload.identifier).to eq('12345678@lid')
        end
      end

      context 'when updating contact information' do
        it 'updates contact phone number if blank' do
          contact = create(:contact, account: inbox.account, phone_number: nil, identifier: '12345678@lid')
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact.reload.phone_number).to eq('+5511912345678')
        end

        it 'updates contact name if it matches phone number' do
          contact = create(:contact, account: inbox.account, name: '5511912345678', phone_number: '+5511912345678', identifier: '12345678@lid')
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact.reload.name).to eq('John Doe')
        end

        it 'updates contact name if it matches LID source_id' do
          contact = create(:contact, account: inbox.account, name: '12345678', phone_number: '+5511912345678', identifier: '12345678@lid')
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact.reload.name).to eq('John Doe')
        end

        it 'updates contact name if it matches identifier' do
          contact = create(:contact, account: inbox.account, name: '12345678@lid', phone_number: '+5511912345678', identifier: '12345678@lid')
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact.reload.name).to eq('John Doe')
        end

        it 'does not update contact name if it is different from phone number, source_id, and identifier' do
          contact = create(:contact, account: inbox.account, name: 'Existing Name', phone_number: '+5511912345678', identifier: '12345678@lid')
          create(:contact_inbox, inbox: inbox, contact: contact, source_id: '12345678')

          described_class.new(inbox: inbox, params: params).perform

          expect(contact.reload.name).to eq('Existing Name')
        end
      end
    end

    context 'when processing messages.update event' do
      let(:conversation) do
        agent = create(:user, account: inbox.account, role: :agent)
        contact = create(:contact, account: inbox.account)
        contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact)
        create(:conversation, inbox: inbox, contact_inbox: contact_inbox, assignee_id: agent.id)
      end
      let!(:message) { create(:message, inbox: inbox, conversation: conversation, source_id: 'msg_123', status: 'sent') }
      let(:update_payload) { { key: { id: 'msg_123' }, update: { status: 3 } } }
      let(:params) do
        {
          webhookVerifyToken: webhook_verify_token,
          event: 'messages.update',
          data: [update_payload]
        }
      end

      context 'when message is not found' do
        it 'raises MessageNotFoundError' do
          update_payload[:key][:id] = 'no_message_id'

          expect do
            described_class.new(inbox: inbox, params: params).perform
          end.to(raise_error { |error| expect(error.class.name).to eq('Whatsapp::BaileysHandlers::MessagesUpdate::MessageNotFoundError') })
        end
      end

      context 'when is a status update' do
        it 'updates the message status' do
          described_class.new(inbox: inbox, params: params).perform

          expect(message.reload.status).to eq('delivered')
        end

        it 'updates conversation agent_last_seen_at and assignee_last_seen_at' do
          freeze_time
          update_payload[:key][:fromMe] = false
          update_payload[:update][:status] = 4

          conversation.update!(agent_last_seen_at: 1.day.ago, assignee_last_seen_at: 1.day.ago)

          described_class.new(inbox: inbox, params: params).perform

          expect(conversation.reload.agent_last_seen_at).to eq(Time.current)
          expect(conversation.assignee_last_seen_at).to eq(Time.current)
        end

        it "does not downgrade a 'read' message to delivered" do
          message.update!(status: 'read')

          described_class.new(inbox: inbox, params: params).perform

          expect(message.reload.status).to eq('read')
        end

        it 'logs warning for unsupported played status' do
          update_payload[:update][:status] = 5

          allow(Rails.logger).to receive(:warn).with('Baileys unsupported message update status: PLAYED(5)').and_return(true)

          expect do
            described_class.new(inbox: inbox, params: params).perform
          end.not_to raise_error

          expect(Rails.logger).to have_received(:warn)
        end

        it 'logs warning for unsupported status' do
          update_payload[:update][:status] = 6

          allow(Rails.logger).to receive(:warn).with('Baileys unsupported message update status: 6').and_return(true)

          expect do
            described_class.new(inbox: inbox, params: params).perform
          end.not_to raise_error

          expect(Rails.logger).to have_received(:warn)
        end
      end

      context 'when is a content update' do
        it 'updates the message content' do
          original_content = message.content
          update_payload[:update] = { message: { editedMessage: { message: { conversation: 'New message content' } } } }

          described_class.new(inbox: inbox, params: params).perform

          expect(message.reload.content).to eq('New message content')
          expect(message.is_edited).to be(true)
          expect(message.previous_content).to eq(original_content)
        end
      end
    end

    context 'when processing message-receipt.update event' do
      let(:conversation) do
        agent = create(:user, account: inbox.account, role: :agent)
        contact = create(:contact, account: inbox.account)
        contact_inbox = create(:contact_inbox, inbox: inbox, contact: contact)
        create(:conversation, inbox: inbox, contact_inbox: contact_inbox, assignee_id: agent.id)
      end
      let!(:message) { create(:message, inbox: inbox, conversation: conversation, source_id: '123ABCDE1234567', status: 'sent') }
      let(:receipt_payload) do
        {
          key: { remoteJid: '123456789123456789@g.us', id: '123ABCDE1234567', fromMe: true,
                 participant: '12345678@lid' },
          receipt: receipt_data
        }
      end
      let(:receipt_data) { { userJid: '12345678@lid', receiptTimestamp: 1_772_056_268 } }
      let(:params) do
        {
          webhookVerifyToken: webhook_verify_token,
          event: 'message-receipt.update',
          data: [receipt_payload]
        }
      end

      it 'updates message from sent to delivered on receiptTimestamp' do
        described_class.new(inbox: inbox, params: params).perform

        expect(message.reload.status).to eq('delivered')
      end

      it 'ignores readTimestamp and does not update status' do
        receipt_data.replace(userJid: '12345678@lid', readTimestamp: 1_772_056_497)

        described_class.new(inbox: inbox, params: params).perform

        expect(message.reload.status).to eq('sent')
      end

      it 'does not downgrade a delivered message on receiptTimestamp' do
        message.update!(status: 'delivered')

        described_class.new(inbox: inbox, params: params).perform

        expect(message.reload.status).to eq('delivered')
      end

      it 'does not downgrade a read message on receiptTimestamp' do
        message.update!(status: 'read')

        described_class.new(inbox: inbox, params: params).perform

        expect(message.reload.status).to eq('read')
      end

      it 'does not raise error when message is not found' do
        receipt_payload[:key][:id] = 'NONEXISTENT_MSG_ID'

        expect { described_class.new(inbox: inbox, params: params).perform }.not_to raise_error
      end
    end
  end

  def format_message_source_key(message_id)
    format(Redis::RedisKeys::MESSAGE_SOURCE_KEY, id: "#{inbox.id}_#{message_id}")
  end

  def stub_download
    allow(Down).to receive(:download)
      .with('https://baileys.api/media/msg_123', headers: inbox.channel.api_headers)
      .and_return(StringIO.new('Media data'))
  end

  def stub_profile_pic_fetch(url = nil)
    stub_request(:get, /profile-picture-url/)
      .to_return(
        status: 200,
        body: { data: { profilePictureUrl: url } }.to_json
      )
  end
end