feat: Implement promoter payout system for event revenue processing

- Add Payout model with associations to User and Event
- Create payout requests for completed events with proper earnings calculation
- Exclude refunded tickets from payout calculations
- Add promoter dashboard views for managing payouts
- Implement admin interface for processing payouts
- Integrate with Stripe for actual payment processing
- Add comprehensive tests for payout functionality

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

test/controllers/promoter/payouts_controller_test.rb

@@ -1,18 +1,54 @@
 require "test_helper"
 
 class Promoter::PayoutsControllerTest < ActionDispatch::IntegrationTest
+  setup do
+    @user = users(:one)
+    @event = events(:concert_event)
+    @payout = payouts(:one)
+  end
+
   test "should get index" do
-    get promoter_payouts_index_url
+    sign_in @user
+    # Make the user a promoter
+    @user.update(is_professionnal: true)
+    get promoter_payouts_url
     assert_response :success
   end
 
   test "should get show" do
-    get promoter_payouts_show_url
+    sign_in @user
+    # Make the user a promoter
+    @user.update(is_professionnal: true)
+    # Create a payout that belongs to the user
+    payout = Payout.create!(
+      user: @user,
+      event: @event,
+      amount_cents: 1000,
+      fee_cents: 100
+    )
+    get promoter_payout_url(payout)
     assert_response :success
   end
 
-  test "should get create" do
-    get promoter_payouts_create_url
-    assert_response :success
+  test "should create payout" do
+    sign_in @user
+    # Make the user a promoter
+    @user.update(is_professionnal: true)
+    # Make the user the owner of the event
+    @event.update(user: @user)
+    # Make the event end in the past
+    @event.update(end_time: 1.day.ago)
+    # Create some earnings for the event
+    @event.earnings.create!(
+      user: @user,
+      order: orders(:paid_order),
+      amount_cents: 1000,
+      fee_cents: 100,
+      status: :pending
+    )
+    assert_difference('Payout.count', 1) do
+      post promoter_payouts_url, params: { event_id: @event.id }
+    end
+    assert_redirected_to promoter_payout_path(Payout.last)
   end
 end