// Debug/Tests/FT_DebugPageManagement.ts

import { AC_DebugHUD } from '#root/Debug/Components/AC_DebugHUD.ts';
import { AC_InputDevice } from '#root/Input/Components/AC_InputDevice.ts';
import { AC_ToastSystem } from '#root/Toasts/Components/AC_ToastSystem.ts';
import { EFunctionalTestResult } from '#root/UE/EFunctionalTestResult.ts';
import { FunctionalTest } from '#root/UE/FunctionalTest.ts';
import { SystemLibrary } from '#root/UE/SystemLibrary.ts';

/**
 * Functional Test: Debug Page Management
 * Tests dynamic page registration, content updates, and lifecycle operations
 */
export class FT_DebugPageManagement extends FunctionalTest {
  // ════════════════════════════════════════════════════════════════════════════════════════
  //                                    GRAPHS
  // ════════════════════════════════════════════════════════════════════════════════════════

  // ────────────────────────────────────────────────────────────────────────────────────────
  // EventGraph
  // ────────────────────────────────────────────────────────────────────────────────────────

  /**
   * Test entry point - validates all page management operations
   * Tests: Add, Update, ShouldUpdate, Visibility, Remove
   */
  EventStartTest(): void {
    this.DebugHUDComponent.InitializeDebugHUD(
      this.ToastSystemComponent,
      this.InputDeviceComponent
    );

    this.DebugHUDComponent.AddDebugPage('TestPage1', 'Test Page 1', 30, true);

    const pageCount = this.DebugHUDComponent.GetTestData().DebugPages.length;

    if (pageCount === 1) {
      const testContent = 'Test Content 123';

      this.DebugHUDComponent.UpdatePageContent('TestPage1', testContent);

      const page = this.DebugHUDComponent.GetTestData().DebugPages.Get(0);
      const contentMatches = page.Content === testContent;

      if (contentMatches) {
        const currentTime = SystemLibrary.GetGameTimeInSeconds();

        // First call should return true (no previous update)
        const firstCall = this.DebugHUDComponent.ShouldUpdatePage(
          'TestPage1',
          currentTime
        );

        // Immediate second call should return false (just updated)
        const secondCall = this.DebugHUDComponent.ShouldUpdatePage(
          'TestPage1',
          currentTime
        );

        if (firstCall && !secondCall) {
          this.DebugHUDComponent.AddDebugPage(
            'TestPage2',
            'Test Page 2',
            60,
            true
          );

          const pageCount =
            this.DebugHUDComponent.GetTestData().DebugPages.length;
          const visibleCount =
            this.DebugHUDComponent.GetTestData().VisiblePagesLength;

          if (pageCount === 2 && visibleCount === 2) {
            // Hide second page
            this.DebugHUDComponent.SetPageVisibility('TestPage2', false);

            const totalCount =
              this.DebugHUDComponent.GetTestData().DebugPages.length;
            const visibleCount =
              this.DebugHUDComponent.GetTestData().VisiblePagesLength;

            if (totalCount === 2 && visibleCount === 1) {
              // Remove first page
              this.DebugHUDComponent.RemoveDebugPage('TestPage1');

              const totalCount =
                this.DebugHUDComponent.GetTestData().DebugPages.length;
              const currentIndex =
                this.DebugHUDComponent.GetTestData().CurrentPageIndex;

              if (totalCount === 1 && currentIndex === 0) {
                // Re-add page with same ID but different settings
                this.DebugHUDComponent.AddDebugPage(
                  'TestPage2',
                  'Updated Title',
                  120,
                  true
                );

                const totalCount =
                  this.DebugHUDComponent.GetTestData().DebugPages.length;
                const visibleCount =
                  this.DebugHUDComponent.GetTestData().VisiblePagesLength;
                const page =
                  this.DebugHUDComponent.GetTestData().DebugPages.Get(0);
                const titleMatches = page.Title === 'Updated Title';
                const refreshRateMatches = page.RefreshRate === 120;

                if (
                  totalCount === 1 &&
                  visibleCount === 1 &&
                  titleMatches &&
                  refreshRateMatches
                ) {
                  // Add pages with different refresh rates
                  this.DebugHUDComponent.AddDebugPage(
                    'FastPage',
                    'Fast Page',
                    120,
                    true
                  );

                  this.DebugHUDComponent.AddDebugPage(
                    'SlowPage',
                    'Slow Page',
                    10,
                    true
                  );

                  const currentTime = SystemLibrary.GetGameTimeInSeconds();

                  // Both should update on first call
                  const fastShouldUpdate =
                    this.DebugHUDComponent.ShouldUpdatePage(
                      'FastPage',
                      currentTime
                    );
                  const slowShouldUpdate =
                    this.DebugHUDComponent.ShouldUpdatePage(
                      'SlowPage',
                      currentTime
                    );

                  // Wait for fast page interval (1/120 = 0.0083s) but not slow (1/10 = 0.1s)
                  const fastUpdateTime = currentTime + 0.01;

                  const fastShouldUpdateAgain =
                    this.DebugHUDComponent.ShouldUpdatePage(
                      'FastPage',
                      fastUpdateTime
                    );
                  const slowShouldNotUpdate =
                    this.DebugHUDComponent.ShouldUpdatePage(
                      'SlowPage',
                      fastUpdateTime
                    );

                  if (
                    fastShouldUpdate &&
                    slowShouldUpdate &&
                    fastShouldUpdateAgain &&
                    !slowShouldNotUpdate
                  ) {
                    // Try to update non-existent page (should not crash)
                    this.DebugHUDComponent.UpdatePageContent(
                      'NonExistentPage',
                      'Test'
                    );

                    // Try to remove non-existent page (should not crash)
                    this.DebugHUDComponent.RemoveDebugPage('NonExistentPage');

                    // Try to check non-existent page (should return false)
                    const currentTime = SystemLibrary.GetGameTimeInSeconds();
                    const shouldUpdate =
                      this.DebugHUDComponent.ShouldUpdatePage(
                        'NonExistentPage',
                        currentTime
                      );

                    if (!shouldUpdate) {
                      this.FinishTest(EFunctionalTestResult.Succeeded);
                    } else {
                      this.FinishTest(
                        EFunctionalTestResult.Failed,
                        'Test 9 Failed: ShouldUpdatePage returned true for non-existent page'
                      );
                    }
                  } else {
                    this.FinishTest(
                      EFunctionalTestResult.Failed,
                      `Test 8 Failed: Refresh rates incorrect (fast1: ${fastShouldUpdate}, slow1: ${slowShouldUpdate}, fast2: ${fastShouldUpdateAgain}, slow2: ${slowShouldNotUpdate})`
                    );
                  }
                } else {
                  this.FinishTest(
                    EFunctionalTestResult.Failed,
                    `Test 7 Failed: Update registration incorrect (count: ${totalCount}, title: ${titleMatches}, rate: ${refreshRateMatches})`
                  );
                }
              } else {
                this.FinishTest(
                  EFunctionalTestResult.Failed,
                  `Test 6 Failed: Remove incorrect (count: ${totalCount}, index: ${currentIndex})`
                );
              }
            } else {
              this.FinishTest(
                EFunctionalTestResult.Failed,
                `Test 5 Failed: Visibility incorrect (total: ${totalCount}, visible: ${visibleCount})`
              );
            }
          } else {
            this.FinishTest(
              EFunctionalTestResult.Failed,
              `Test 4 Failed: Expected 2 pages (total: ${pageCount}, visible: ${visibleCount})`
            );
          }
        } else {
          this.FinishTest(
            EFunctionalTestResult.Failed,
            `Test 3 Failed: ShouldUpdatePage timing incorrect (first: ${firstCall}, second: ${secondCall})`
          );
        }
      } else {
        this.FinishTest(
          EFunctionalTestResult.Failed,
          'Test 2 Failed: Content did not update correctly'
        );
      }
    } else {
      this.FinishTest(
        EFunctionalTestResult.Failed,
        `Test 1 Failed: Expected 1 page, got ${pageCount}`
      );
    }
  }

  // ════════════════════════════════════════════════════════════════════════════════════════
  //                                    VARIABLES
  // ════════════════════════════════════════════════════════════════════════════════════════

  /**
   * Debug HUD system - primary component under test
   * Tests all page management operations
   * @category Components
   */
  DebugHUDComponent = new AC_DebugHUD();

  /**
   * Toast notification system - required for debug HUD initialization
   * @category Components
   */
  ToastSystemComponent = new AC_ToastSystem();

  /**
   * Input device detection system - required for debug HUD initialization
   * @category Components
   */
  InputDeviceComponent = new AC_InputDevice();
}