// Toasts/Tests/FT_ToastsEdgeCases.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 type { Integer } from '#root/UE/Integer.ts';
import { StringLibrary } from '#root/UE/StringLibrary.ts';
import type { Text } from '#root/UE/Text.ts';
import { TextLibrary } from '#root/UE/TextLibrary.ts';

/**
 * Functional Test: Toast System Edge Cases
 * Tests toast system robustness with unusual input conditions
 * Validates handling of empty, very long, and multiline messages
 */
export class FT_ToastsEdgeCases extends FunctionalTest {
  // ════════════════════════════════════════════════════════════════════════════════════════
  //                                    GRAPHS
  // ════════════════════════════════════════════════════════════════════════════════════════

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

  /**
   * Test preparation - generates very long text for stress testing
   * Creates 500-character string to test text handling limits
   */
  EventPrepareTest(): void {
    for (let i = 0; i < 500; i++) {
      this.longText = TextLibrary.StringToText(
        StringLibrary.Append(TextLibrary.TextToString(this.longText), 'A')
      );
    }
  }

  /**
   * Test execution - validates edge case handling
   * Tests empty text, very long text, and multiline text scenarios
   */
  EventStartTest(): void {
    this.ToastComponent.InitializeToastSystem();

    // Test empty message handling
    this.emptyToast = this.ToastComponent.ShowToast();

    // Test very long message handling (500 characters)
    this.longToast = this.ToastComponent.ShowToast(this.longText);

    // Test multiline message handling
    this.specialToast = this.ToastComponent.ShowToast(`Test
Multiline
Message`);

    /**
     * Check if all edge case toasts were created successfully
     */
    const AreToastsCreatedSuccessfully = (): boolean =>
      this.emptyToast > 0 && this.longToast > 0 && this.specialToast > 0;

    if (AreToastsCreatedSuccessfully()) {
      this.FinishTest(EFunctionalTestResult.Succeeded);
    } else {
      this.FinishTest(
        EFunctionalTestResult.Failed,
        `Edge case failures: empty=${this.emptyToast}, long=${this.longToast}, special=${this.specialToast}`
      );
    }
  }

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

  /**
   * Toast notification system - component under test
   * @category Components
   */
  private ToastComponent = new AC_ToastSystem();

  /**
   * ID of toast created with empty message
   * @category Test State
   */
  private emptyToast: Integer = 0;

  /**
   * ID of toast created with very long message (500 chars)
   * @category Test State
   */
  private longToast: Integer = 0;

  /**
   * ID of toast created with multiline message
   * @category Test State
   */
  private specialToast: Integer = 0;

  /**
   * Generated long text string for stress testing
   * Built during test preparation phase
   * @category Test Data
   */
  private longText: Text = '';
}