import { Env } from "../dists/env.js";
import { ICompileError, IRuntimeError } from "../errors/IError.js";
import { SqModule } from "../public/SqProject/SqModule.js";
import { RunOutput } from "../reducer/Reducer.js";
import { result } from "../utility/result.js";
import { Value } from "../value/index.js";

export type RunParams = {
  module: SqModule;
  environment: Env;
  // This is a mapping from import _string_ ("foo" in `import "foo"`) to the value that should be imported.
  imports: Record<string, Value>;
};

export type RunResult = result<RunOutput, (ICompileError | IRuntimeError)[]>;

// Ideas for future methods:
// - streaming top-level values from `Program`
// - client-server architecture where output stays on on the server and can be queried (this might be difficult because server would have to manage object lifetimes somehow)
// - APIs for code -> AST and AST -> IR steps
export abstract class BaseRunner {
  abstract run(params: RunParams): Promise<RunResult>;
}