export type PlateShape = 'rectangular' | 'circular';
export type ColumnType = 'I-Shape' | 'HSS-Rect' | 'HSS-Round' | 'User-Defined';
export type AnalysisMethod = 'Strain Compatibility' | 'Elastic';

export interface Loads {
  P: number; // Axial (kips)
  Mx: number; // Moment about X (k-ft)
  Mz: number; // Moment about Z (k-ft)
  Vx: number; // Shear X (kips)
  Vz: number; // Shear Z (kips)
}

export interface Geometry {
  plateShape: PlateShape;
  // Rectangular
  widthZ: number; // in
  lengthX: number; // in
  // Circular
  diameter: number; // in
  
  thickness: number; // in
  
  columnProfile: ColumnType;
  columnDetails: {
    designation: string; // e.g., "W10x49"
    d: number; // Depth
    bf: number; // Flange width
    tf: number; // Flange thickness
    tw: number; // Web thickness
  };

  support: {
    widthWp1: number; // in
    widthWp2: number; // in
    lengthLp1: number; // in
    lengthLp2: number; // in
    groutThickness: number; // in
  };
}

export interface Anchorage {
  count: number;
  diameter: number; // in
  material: string; // e.g., "F1554-36"
  layout: 'matrix' | 'circular';
  edgeDistance: number; // in
  
  // Embedment details
  hef: number; // Embedment depth (in)
  reinforcement: 'None' | 'Supplementary' | 'Anchor';
}

export interface Materials {
  fc: number; // Concrete strength (ksi)
  fy_rebar: number; // Rebar strength (ksi)
  fy_plate: number; // Plate strength (ksi)
  seismic: boolean;
  analysisMethod: AnalysisMethod;
}

export interface DesignState {
  loads: Loads;
  geometry: Geometry;
  anchorage: Anchorage;
  materials: Materials;
  
  // Actions
  setLoads: (loads: Partial<Loads>) => void;
  setGeometry: (geometry: Partial<Geometry>) => void;
  setAnchorage: (anchorage: Partial<Anchorage>) => void;
  setMaterials: (materials: Partial<Materials>) => void;
}