// Content/Blueprints/BP_MainCharacter.ts

import { AC_DebugHUD } from '/Content/Debug/Components/AC_DebugHUD.ts';
import { AC_InputDevice } from '/Content/Input/Components/AC_InputDevice.ts';
import { IMC_Default } from '/Content/Input/IMC_Default.ts';
import { AC_ToastSystem } from '/Content/Toasts/Components/AC_ToastSystem.ts';
import { Cast } from '/Content/UE/Cast.ts';
import type { Controller } from '/Content/UE/Controller.ts';
import { EnhancedInputLocalPlayerSubsystem } from '/Content/UE/EnhancedInputLocalPlayerSubsystem.ts';
import type { Float } from '/Content/UE/Float.ts';
import { MathLibrary } from '/Content/UE/MathLibrary.ts';
import type { PlayerController } from '/Content/UE/PlayerController.ts';
import { SystemLibrary } from '/Content/UE/SystemLibrary.ts';
import { Vector } from '/Content/UE/Vector.ts';
import { TengriCharacter } from '/Source/TengriPlatformer/Character/TengriCharacter.ts';
import { IA_Interact } from '/Content/Input/Actions/IA_Inreract.ts';
import { IA_Throw } from '/Content/Input/Actions/IA_Throw.ts';
import { IA_Aim } from '/Content/Input/Actions/IA_Aim.ts';
import { IMC_ItemHeld } from '/Content/Input/IMC_ItemHeld.ts';
import { CreateWidget } from '/Content/UE/CteateWidget.ts';
import { WBP_HUD } from '/Content/UI/WBP_HUD.ts';
import { CustomDefaultSkeletalMesh } from '/Content/BasicShapes/CustomDefaultSkeletalMesh.ts';
import { ETengriCameraBehavior } from '/Source/TengriPlatformer/Camera/Core/TengriCameraConfig.ts';
import { DA_CameraAiming } from '/Content/Camera/DA_CameraAiming.ts';

/**
 * Main Character Blueprint
 * Core player character with deterministic movement system
 * Integrates debug HUD and toast notification systems
 */
export class BP_MainCharacter extends TengriCharacter {
  // ════════════════════════════════════════════════════════════════════════════════════════
  //                                    GRAPHS
  // ════════════════════════════════════════════════════════════════════════════════════════

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

  /**
   * Handle controller change events - sets up Enhanced Input mapping context
   */
  EventReceiveControllerChanged(NewController: Controller): void {
    const controller = Cast<PlayerController>(NewController);
    const system = new EnhancedInputLocalPlayerSubsystem();

    if (controller) {
      system.AddMappingContext(IMC_Default);
    }
  }

  /** Navigate to previous debug page */
  EnhancedInputActionPrevDebugMode(): void {
    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.PreviousPage();
    }
  }

  /** Navigate to next debug page */
  EnhancedInputActionINextDebugMode(): void {
    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.NextPage();
    }
  }

  /** Toggle debug HUD visibility */
  EnhancedInputActionToggleHUD(): void {
    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.ToggleDebugHUD();
    }
  }

  /** Toggle visual debug rendering */
  EnhancedInputActionToggleVisualDebug(): void {
    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.ToggleVisualDebug();
    }
  }

  /**
   * Process look input for camera rotation
   * @param actionValueX - Horizontal look input value
   * @param actionValueY - Vertical look input value
   */
  EnhancedInputActionLookTriggered(
    actionValueX: Float,
    actionValueY: Float
  ): void {
    if (
      this.CameraManager.CurrentConfig.BehaviorType ===
      ETengriCameraBehavior.FreeLook
    ) {
      this.AddControllerYawInput(actionValueX);
      this.AddControllerPitchInput(actionValueY);
    }
  }

  /**
   * Process movement input for ground-based movement
   * @param ActionValueX - Horizontal movement input value (-1 to 1)
   * @param ActionValueY - Vertical movement input value (-1 to 1)
   */
  EnhancedInputActionMoveTriggered(
    ActionValueX: Float,
    ActionValueY: Float
  ): void {
    const CalculateResultMovementInputVector = (
      rightVector: Vector,
      forwardVector: Vector,
      actionValueX: Float,
      actionValueY: Float
    ): Vector => {
      const vec1 = new Vector(
        rightVector.X * actionValueX,
        rightVector.Y * actionValueX,
        0
      );
      const vec2 = new Vector(
        forwardVector.X * actionValueY,
        forwardVector.Y * actionValueY,
        0
      );

      return new Vector(vec1.X + vec2.X, vec1.Y + vec2.Y, 0);
    };

    this.MovementComponent.SetInputVector(
      CalculateResultMovementInputVector(
        MathLibrary.GetRightVector(
          this.GetControlRotation().roll,
          0,
          this.GetControlRotation().yaw
        ),
        MathLibrary.GetForwardVector(0, 0, this.GetControlRotation().yaw),
        ActionValueX,
        ActionValueY
      )
    );
  }

  /**
   * Reset movement input when move action is completed
   */
  EnhancedInputActionMoveCompleted(): void {
    this.MovementComponent.SetInputVector(new Vector(0, 0, 0));
  }

  EnhancedInputActionJumpTriggered(): void {
    this.MovementComponent.SetJumpInput(true);
  }

  EnhancedInputActionJumpCompleted(): void {
    this.MovementComponent.SetJumpInput(false);
  }

  /**
   * Initialize all systems when character spawns
   * Order: Toast → Debug → Movement (movement last as it may generate debug output)
   */
  EventBeginPlay(): void {
    if (this.ShowDebugInfo) {
      this.ToastSystemComponent.InitializeToastSystem();
    }

    this.InputDeviceComponent.InitializeDeviceDetection(
      this.ToastSystemComponent,
      this.DebugHUDComponent
    );

    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.InitializeDebugHUD(
        this.ToastSystemComponent,
        this.InputDeviceComponent
      );
    }

    CreateWidget(WBP_HUD).AddToViewport();
  }

  /**
   * Update all systems each frame
   * Called by Unreal Engine game loop
   */
  EventTick(): void {
    if (this.ShowDebugInfo) {
      this.DebugHUDComponent.UpdateHUD(SystemLibrary.GetGameTimeInSeconds());
      this.ToastSystemComponent.UpdateToastSystem();
    }

    if (this.ShowDebugInfo) {
      this.InputDeviceComponent.UpdateDebugPage();
    }
  }

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

  /**
   * Input device detection component - manages input device state and detection
   * @category Components
   */
  InputDeviceComponent = new AC_InputDevice();

  /**
   * Toast notification system - displays temporary status messages
   * @category Components
   */
  ToastSystemComponent = new AC_ToastSystem();

  /**
   * Debug HUD system - displays movement parameters and performance metrics
   * @category Components
   */
  DebugHUDComponent = new AC_DebugHUD();

  /**
   * Master debug toggle - controls all debug systems (HUD, toasts, visual debug)
   * @category Debug
   * @instanceEditable true
   */
  private ShowDebugInfo: boolean = true;

  constructor() {
    super(new DA_CameraAiming());

    this.InteractAction = IA_Interact;
    this.ThrowAction = IA_Throw;
    this.AimAction = IA_Aim;
    this.ItemHeldMappingContext = IMC_ItemHeld;

    this.Mesh = new CustomDefaultSkeletalMesh();
  }
}