import type { Step, ThenStep } from "../Step";

export type GivenScenarioDefinition<TContext> = {
  given?: Step<TContext>;
  scenario: Step<TContext>;
  expect_error?: (this: TContext, error: Error) => void | Promise<void>;
};

export type GivenScenarioWhenThenDefinition<TContext> = {
  given?: Step<TContext>;
  scenario: ScenarioStep<TContext>;
};

export type GivenScenarioTest<TContext> =
  | GivenScenarioDefinition<TContext>
  | GivenScenarioWhenThenDefinition<TContext>;

export type ScenarioWhenStep<TContext> = {
  name?: string;
  when: Step<TContext>;
  then: ThenStep<TContext>;
};

export type ScenarioThenWhenStep<TContext> = {
  name?: string;
  then_when: Step<TContext>;
  then: ThenStep<TContext>;
};

export type ScenarioStep<TContext> = [
  ScenarioWhenStep<TContext>,
  ...ScenarioThenWhenStep<TContext>[],
];