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

lib/integrations/slack/channel_builder.rb

@@ -5,9 +5,12 @@ class Integrations::Slack::ChannelBuilder
     @params = params
   end
 
-  def perform
-    find_or_create_channel
-    update_reference_id
+  def fetch_channels
+    channels
+  end
+
+  def update(reference_id)
+    update_reference_id(reference_id)
   end
 
   private
@@ -20,19 +23,26 @@ class Integrations::Slack::ChannelBuilder
     @slack_client ||= Slack::Web::Client.new(token: hook.access_token)
   end
 
-  def find_or_create_channel
-    current_list = slack_client.conversations_list
-    channels = current_list.channels
-    while current_list.response_metadata.next_cursor.present?
-      current_list = slack_client.conversations_list(cursor: current_list.response_metadata.next_cursor)
-      channels.concat(current_list.channels)
+  def channels
+    conversations_list = slack_client.conversations_list(types: 'public_channel, private_channel')
+    channel_list = conversations_list.channels
+    while conversations_list.response_metadata.next_cursor.present?
+      conversations_list = slack_client.conversations_list(cursor: conversations_list.response_metadata.next_cursor)
+      channel_list.concat(conversations_list.channel_list)
     end
-    existing_channel = channels.find { |channel| channel['name'] == params[:channel] }
-    @channel = existing_channel || slack_client.conversations_create(name: params[:channel])['channel']
+    channel_list
   end
 
-  def update_reference_id
-    slack_client.conversations_join(channel: channel[:id])
-    @hook.update(reference_id: channel[:id])
+  def find_channel(reference_id)
+    channels.find { |channel| channel['id'] == reference_id }
+  end
+
+  def update_reference_id(reference_id)
+    channel = find_channel(reference_id)
+    return if channel.blank?
+
+    slack_client.conversations_join(channel: channel[:id]) if channel[:is_private] == false
+    @hook.update!(reference_id: channel[:id], settings: { channel_name: channel[:name] }, status: 'enabled')
+    @hook
   end
 end

lib/integrations/slack/hook_builder.rb

@@ -10,7 +10,7 @@ class Integrations::Slack::HookBuilder
 
     hook = account.hooks.new(
       access_token: token,
-      status: 'enabled',
+      status: 'disabled',
       inbox_id: params[:inbox_id],
       app_id: 'slack'
     )