import type { PuzzleDefinition } from "../domain";
import type {
  ExactSolveOptions,
  ExactSolveResult,
  GenerateClassicOptions,
  KillerCombinationOptions,
  KillerCombinationResult,
  LogicalSolveOptions,
  LogicalSolveResult,
  MinimizeOptions,
} from "../solver";
import type { NormalizedPuzzle, ValidationIssue } from "../domain";

export type SolverWorkerOperation =
  | {
      readonly kind: "solve";
      readonly puzzle: PuzzleDefinition;
      readonly options?: ExactSolveOptions;
    }
  | {
      readonly kind: "logical";
      readonly puzzle: PuzzleDefinition;
      readonly options?: LogicalSolveOptions;
    }
  | { readonly kind: "generate"; readonly options?: GenerateClassicOptions }
  | {
      readonly kind: "minimize";
      readonly puzzle: PuzzleDefinition;
      readonly options?: MinimizeOptions;
    }
  | {
      readonly kind: "killer-combinations";
      readonly options: KillerCombinationOptions;
    };

export interface SolverWorkerRequest {
  readonly id: string;
  readonly operation: SolverWorkerOperation;
}

export type SolverWorkerValue =
  | ExactSolveResult
  | LogicalSolveResult
  | NormalizedPuzzle
  | KillerCombinationResult;

export interface SolverWorkerError {
  readonly name: string;
  readonly message: string;
  readonly issues?: readonly ValidationIssue[];
}

export type SolverWorkerResponse =
  | {
      readonly id: string;
      readonly ok: true;
      readonly value: SolverWorkerValue;
    }
  | {
      readonly id: string;
      readonly ok: false;
      readonly error: SolverWorkerError;
    };