toss/use-funnel

import { useFunnel } from '@use-funnel/browser';

export function App() {
  const funnel = useFunnel<{
    SelectJob: { jobType?: 'STUDENT' | 'EMPLOYEE' };
    SelectSchool: { jobType: 'STUDENT'; school?: string };
    SelectEmployee: { jobType: 'EMPLOYEE'; company?: string };
    EnterJoinDate: { jobType: 'STUDENT'; school: string } | { jobType: 'EMPLOYEE'; company: string };
    Confirm: ({ jobType: 'STUDENT'; school: string } | { jobType: 'EMPLOYEE'; company: string }) & { joinDate: string };
  }>({
    id: 'hello-world',
    initial: {
      step: 'SelectJob',
      context: {},
    },
  });

  return (
    <funnel.Render
      SelectJob={funnel.Render.with({
        events: {
          selectSchool: (_, { history }) => history.push('SelectSchool', { jobType: 'STUDENT' }),
          selectEmployee: (_, { history }) => history.push('SelectEmployee', { jobType: 'EMPLOYEE' }),
        },
        render({ dispatch }) {
          return (
            <SelectJob
              onSelectSchool={() => dispatch('selectSchool')}
              onSelectEmployee={() => dispatch('selectEmployee')}
            />
          );
        },
      })}
      SelectSchool={({ history }) => (
        <SelectSchool
          onNext={(school) =>
            history.push('EnterJoinDate', (prev) => ({
              ...prev,
              school,
            }))
          }
        />
      )}
      SelectEmployee={({ history }) => (
        <SelectEmployee
          onNext={(company) =>
            history.push('EnterJoinDate', (prev) => ({
              ...prev,
              company,
            }))
          }
        />
      )}
      EnterJoinDate={funnel.Render.overlay({
        render({ history, close }) {
          return (
            <EnterJoinDateBottomSheet
              onNext={(joinDate) => history.push('Confirm', { joinDate })}
              onClose={() => close()}
            />
          );
        },
      })}
      Confirm={({ context }) =>
        context.jobType === 'STUDENT' ? (
          <ConfirmStudent school={context.school} joinDate={context.joinDate} />
        ) : (
          <ConfirmEmployee company={context.company} joinDate={context.joinDate} />
        )
      }
    />
  );
}

declare function SelectJob(props: { onSelectSchool(): void; onSelectEmployee(): void }): JSX.Element;
declare function SelectSchool(props: { onNext(school: string): void }): JSX.Element;
declare function SelectEmployee(props: { onNext(company: string): void }): JSX.Element;
declare function EnterJoinDateBottomSheet(props: { onNext(joinDate: string): void; onClose(): void }): JSX.Element;
declare function ConfirmStudent(props: { school: string; joinDate: string }): JSX.Element;
declare function ConfirmEmployee(props: { company: string; joinDate: string }): JSX.Element;