feat: Update the slack integration-flow to allow users to select the channel (#7637)

app/controllers/api/v1/accounts/integrations/slack_controller.rb

@@ -1,27 +1,27 @@
 class Api::V1::Accounts::Integrations::SlackController < Api::V1::Accounts::BaseController
   before_action :check_admin_authorization?
-  before_action :fetch_hook, only: [:update, :destroy]
+  before_action :fetch_hook, only: [:update, :destroy, :list_all_channels]
+
+  def list_all_channels
+    @channels = channel_builder.fetch_channels
+  end
 
   def create
-    ActiveRecord::Base.transaction do
-      builder = Integrations::Slack::HookBuilder.new(
-        account: Current.account,
-        code: params[:code],
-        inbox_id: params[:inbox_id]
-      )
-      @hook = builder.perform
-      create_chatwoot_slack_channel
-    end
+    hook_builder = Integrations::Slack::HookBuilder.new(
+      account: Current.account,
+      code: params[:code],
+      inbox_id: params[:inbox_id]
+    )
+    @hook = hook_builder.perform
   end
 
   def update
-    create_chatwoot_slack_channel
-    render json: @hook
+    @hook = channel_builder.update(permitted_params[:reference_id])
+    render json: { error: I18n.t('errors.slack.invalid_channel_id') }, status: :unprocessable_entity if @hook.blank?
   end
 
   def destroy
     @hook.destroy!
-
     head :ok
   end
 
@@ -31,11 +31,11 @@ class Api::V1::Accounts::Integrations::SlackController < Api::V1::Accounts::Base
     @hook = Integrations::Hook.where(account: Current.account).find_by(app_id: 'slack')
   end
 
-  def create_chatwoot_slack_channel
-    channel = params[:channel] || 'customer-conversations'
-    builder = Integrations::Slack::ChannelBuilder.new(
-      hook: @hook, channel: channel
-    )
-    builder.perform
+  def channel_builder
+    Integrations::Slack::ChannelBuilder.new(hook: @hook)
+  end
+
+  def permitted_params
+    params.permit(:reference_id)
   end
 end