import useProgramStore, {type ReducedProgram} from "../../src/utils/programStore.ts";


describe('useProgramStore', () => {
  beforeEach(() => {
    // Reset store before each test
    useProgramStore.setState({
      currentProgram: { phases: [] },
    });
  });

  const mockProgram: ReducedProgram = {
    phases: [
      {
        id: 'phase-1',
        norms: [{ id: 'norm-1' }],
        goals: [{ id: 'goal-1' }],
        triggers: [{ id: 'trigger-1' }],
      },
      {
        id: 'phase-2',
        norms: [{ id: 'norm-2' }],
        goals: [{ id: 'goal-2' }],
        triggers: [{ id: 'trigger-2' }],
      },
    ],
  };

  it('should set and get the program state', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    const program = useProgramStore.getState().getProgramState();
    expect(program).toEqual(mockProgram);
  });

  it('should return the ids of all phases in the program', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    const phaseIds = useProgramStore.getState().getPhaseIds();
    expect(phaseIds).toEqual(['phase-1', 'phase-2']);
  });

  it('should return all norms for a given phase', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    const norms = useProgramStore.getState().getNormsInPhase('phase-1');
    expect(norms).toEqual([{ id: 'norm-1' }]);
  });

  it('should return all goals for a given phase', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    const goals = useProgramStore.getState().getGoalsInPhase('phase-2');
    expect(goals).toEqual([{ id: 'goal-2' }]);
  });

  it('should return all triggers for a given phase', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    const triggers = useProgramStore.getState().getTriggersInPhase('phase-1');
    expect(triggers).toEqual([{ id: 'trigger-1' }]);
  });

  it('throws if phase does not exist when getting norms', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    expect(() =>
      useProgramStore.getState().getNormsInPhase('missing-phase')
    ).toThrow('phase with id:"missing-phase" not found');
  });

  it('throws if phase does not exist when getting goals', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    expect(() =>
      useProgramStore.getState().getGoalsInPhase('missing-phase')
    ).toThrow('phase with id:"missing-phase" not found');
  });

  it('throws if phase does not exist when getting triggers', () => {
    useProgramStore.getState().setProgramState(mockProgram);

    expect(() =>
      useProgramStore.getState().getTriggersInPhase('missing-phase')
    ).toThrow('phase with id:"missing-phase" not found');
  });

  it('should clone program state when setting it (no shared references should exist)', () => {
    const changeableMockProgram: ReducedProgram = {
      phases: [
        {
          id: 'phase-1',
          norms: [{ id: 'norm-1' }],
          goals: [{ id: 'goal-1' }],
          triggers: [{ id: 'trigger-1' }],
        },
        {
          id: 'phase-2',
          norms: [{ id: 'norm-2' }],
          goals: [{ id: 'goal-2' }],
          triggers: [{ id: 'trigger-2' }],
        },
      ],
    };

    useProgramStore.getState().setProgramState(changeableMockProgram);

    const storedProgram = useProgramStore.getState().getProgramState();

    // mutate original
    (changeableMockProgram.phases[0].norms as any[]).push({ id: 'norm-mutated' });

    // store should NOT change
    expect(storedProgram.phases[0]['norms']).toHaveLength(1);
  });
});