import type {
  CameraPresetId,
  CrossSectionState,
  DisplayMode,
  MachineDefinition,
  MachinePart,
  MachinePartViewState,
  Vector3Tuple,
} from '../modules/machines/schema';
import type { AnimationFrameState } from '../animations/types';

export type RenderQualityTier = 'mobile-low' | 'balanced' | 'desktop-high';

export interface SceneQualitySettings {
  tier: RenderQualityTier;
  shadowsEnabled: boolean;
  ambientOcclusionEnabled: boolean;
  maxDevicePixelRatio: number;
  particleBudget: number;
  annotationBudget: number;
}

export interface SceneCameraState {
  position: Vector3Tuple;
  target: Vector3Tuple;
  fov: number;
  preset?: CameraPresetId;
}

export interface SceneDisplayState {
  displayMode: DisplayMode;
  explodeDistance: number;
  annotationsVisible: boolean;
  crossSection: CrossSectionState;
  selectedPartId?: string;
  hoveredPartId?: string;
  partViewState: Record<string, MachinePartViewState>;
}

export interface MachineSceneBuildContext {
  machine: MachineDefinition;
  quality: SceneQualitySettings;
  display: SceneDisplayState;
  camera: SceneCameraState;
  reducedMotion: boolean;
}

export interface MachineScenePartBinding {
  part: MachinePart;
  objectName: string;
  selectable: boolean;
  receivesAnimation: boolean;
  defaultExplode: Vector3Tuple;
}

export interface MachineSceneAdapter {
  id: string;
  machineId: string;
  build(context: MachineSceneBuildContext): readonly MachineScenePartBinding[];
  applyAnimation(frame: AnimationFrameState): void;
  applyDisplayState(display: SceneDisplayState): void;
  dispose(): void;
}

export const defaultSceneQualitySettings: SceneQualitySettings = {
  tier: 'balanced',
  shadowsEnabled: true,
  ambientOcclusionEnabled: true,
  maxDevicePixelRatio: 1.75,
  particleBudget: 1600,
  annotationBudget: 64,
};

export const mobileSceneQualitySettings: SceneQualitySettings = {
  tier: 'mobile-low',
  shadowsEnabled: false,
  ambientOcclusionEnabled: false,
  maxDevicePixelRatio: 1.25,
  particleBudget: 500,
  annotationBudget: 32,
};

export const desktopSceneQualitySettings: SceneQualitySettings = {
  tier: 'desktop-high',
  shadowsEnabled: true,
  ambientOcclusionEnabled: true,
  maxDevicePixelRatio: 2,
  particleBudget: 3000,
  annotationBudget: 96,
};