import { Decimal } from 'decimal.js';
import { describe, expect, it } from 'vitest';
import { Attribution } from '../../src/domain/attribution.js';

const make = (overrides: Partial<ConstructorParameters<typeof Attribution>[0]> = {}) =>
  new Attribution({
    id: 1,
    moduleId: 10,
    personneId: 5,
    heuresAttribuees: new Decimal(20),
    ...overrides,
  });

describe('Attribution — constructeur', () => {
  it('cree une attribution valide', () => {
    const a = make();
    expect(a.statut).toBe('planifie');
    expect(a.heuresRealisees.toNumber()).toBe(0);
  });

  it('throw si heuresAttribuees <= 0', () => {
    expect(() => make({ heuresAttribuees: new Decimal(0) })).toThrow();
    expect(() => make({ heuresAttribuees: new Decimal(-5) })).toThrow();
  });

  it('throw si heuresRealisees < 0', () => {
    expect(() => make({ heuresRealisees: new Decimal(-1) })).toThrow();
  });

  it('throw si dateFin < dateDebut', () => {
    expect(() =>
      make({ dateDebut: new Date('2026-02-01'), dateFin: new Date('2026-01-01') }),
    ).toThrow();
  });
});

describe('Attribution — transitions de statut', () => {
  it('demarrer: planifie -> en_cours', () => {
    const a = make();
    a.demarrer();
    expect(a.statut).toBe('en_cours');
  });

  it('demarrer invalide depuis realise', () => {
    const a = make({ statut: 'realise' });
    expect(() => a.demarrer()).toThrow();
  });

  it('cloturer: en_cours -> realise', () => {
    const a = make({ statut: 'en_cours' });
    a.cloturer();
    expect(a.statut).toBe('realise');
  });

  it('cloturer: planifie -> realise (skip en_cours autorise)', () => {
    const a = make();
    a.cloturer();
    expect(a.statut).toBe('realise');
  });

  it('cloturer invalide depuis annule', () => {
    const a = make({ statut: 'annule' });
    expect(() => a.cloturer()).toThrow();
  });

  it('annuler depuis planifie OK', () => {
    const a = make();
    a.annuler('client desistement');
    expect(a.statut).toBe('annule');
  });

  it('annuler invalide depuis realise', () => {
    const a = make({ statut: 'realise' });
    expect(() => a.annuler('motif')).toThrow();
  });
});

describe('Attribution — saisirHeuresRealisees', () => {
  it('cas nominal', () => {
    const a = make();
    a.saisirHeuresRealisees(new Decimal(15));
    expect(a.heuresRealisees.toNumber()).toBe(15);
  });

  it('throw si heures < 0', () => {
    const a = make();
    expect(() => a.saisirHeuresRealisees(new Decimal(-1))).toThrow();
  });

  it('throw si attribution annulee', () => {
    const a = make({ statut: 'annule' });
    expect(() => a.saisirHeuresRealisees(new Decimal(5))).toThrow();
  });

  it('throw si attribution realisee', () => {
    const a = make({ statut: 'realise' });
    expect(() => a.saisirHeuresRealisees(new Decimal(5))).toThrow();
  });
});

describe('Attribution — isActive', () => {
  it('planifie et en_cours sont actifs', () => {
    expect(make().isActive()).toBe(true);
    expect(make({ statut: 'en_cours' }).isActive()).toBe(true);
  });
  it('realise et annule ne sont pas actifs', () => {
    expect(make({ statut: 'realise' }).isActive()).toBe(false);
    expect(make({ statut: 'annule' }).isActive()).toBe(false);
  });
});