types.ts

export type Signal = boolean;

export type ComponentType = 
  | 'AND' 
  | 'OR' 
  | 'NOT' 
  | 'NAND' 
  | 'NOR' 
  | 'XOR' 
  | 'LEVER' 
  | 'BUTTON' 
  | 'BULB' 
  | 'IC';

export interface Pin {
  id: string;
  componentId: string;
  type: 'input' | 'output';
  label?: string; // For ICs inputs/outputs
  index: number; // Index in the inputs/outputs array
  value: Signal; // Current simulation value
}

export interface CircuitComponent {
  id: string;
  type: ComponentType;
  x: number;
  y: number;
  label: string;
  inputs: Pin[];
  outputs: Pin[];
  state: Record<string, any>; // For levers (isOn), etc.
  icDefinitionId?: string; // If type === 'IC'
}

export interface Wire {
  id: string;
  sourcePinId: string;
  targetPinId: string;
}

export interface ICDefinition {
  id: string;
  name: string;
  // The internal structure
  components: CircuitComponent[];
  wires: Wire[];
  // Maps external pin index to the internal component ID and pin index
  inputMap: { internalComponentId: string; pinIndex: number; label: string }[];
  outputMap: { internalComponentId: string; pinIndex: number; label: string }[];
}

export interface CircuitState {
  components: CircuitComponent[];
  wires: Wire[];
  selection: string[]; // Selected component IDs
  icDefinitions: ICDefinition[];
}

export interface DragItem {
  type: ComponentType | 'IC';
  icId?: string; // If dragging a custom IC
}

// --- AI Generation Types ---

export interface AIComponentSpec {
  id: string; // Temporary ID used by AI for connection references
  type: ComponentType;
  label: string;
  gridX: number; // Logical grid position (e.g., 0, 1, 2)
  gridY: number;
  icName?: string; // If type is IC, the name of the custom IC to use
}

export interface AIConnectionSpec {
  sourceId: string;
  targetId: string;
  targetInputIndex: number;
}

export interface AIBlueprint {
  explanation: string;
  components: AIComponentSpec[];
  connections: AIConnectionSpec[];
}