export type ShapeType = 'rectangle' | 'circle' | 'polygon';

export interface Point {
  x: number;
  y: number;
}

export interface Size {
  width: number;
  height: number;
}

export interface Rect extends Point, Size {}

export interface ShapeData {
  type: ShapeType;
  x: number;
  y: number;
  width: number;
  height: number;
  rotation?: number;
  points?: Point[];
}

export type ConditionKind =
  | 'walk_to_and_sit'
  | 'around_open_area'
  | 'near_entrance'
  | 'near_object'
  | 'not_blocking_path'
  | 'accessible'
  | 'open_circulation';

export interface ConditionSpec {
  kind: ConditionKind;
  weight: number;
  params?: Record<string, unknown>;
}

export interface FurnitureConfig {
  id: string;
  name: string;
  type?: string;
  shape: ShapeData;
  conditions: ConditionSpec[];
  color?: string;
  lockedForOptimization?: boolean;
  placed?: boolean;
}

export interface Entrance {
  x: number;
  y: number;
  width?: number;
  height?: number;
  rotation?: number;
}

export interface RoomConfig {
  width: number;
  height: number;
  gridSize?: number;
}

export interface GridCell {
  x: number;
  y: number;
  walkable: boolean;
}

export interface PathNode extends Point {
  g: number;
  h: number;
  f: number;
  parent?: PathNode;
}

export interface AccessibilityResult {
  furnitureId: string;
  distanceFromEntrance: number | null;
  reachable: boolean;
  pathLength: number | null;
}

export interface LayoutEvaluation {
  totalScore: number;
  conditionScores: Record<string, number>;
  accessibility: AccessibilityResult[];
  penalty: number;
}

export interface FurniturePreset {
  id: string;
  name: string;
  shape: Omit<ShapeData, 'x' | 'y'>;
  conditions: ConditionSpec[];
  color?: string;
  amount?: number;
  isPreset?: boolean;
}

export interface LayoutState {
  room: RoomConfig;
  entrance: Entrance | null;
  furniture: FurnitureConfig[];
  presets?: FurniturePreset[];
  objectCount?: number;
  objectAmounts?: Record<string, number>;
}