import { describe, it, expect } from 'vitest';
import { UploadsController } from './uploads.controller';

/** Accès à la méthode privée sans instancier le contrôleur complet */
function extract(yamlContent: string) {
  return (UploadsController.prototype as any).extractMetadata.call({}, yamlContent);
}

describe('UploadsController.extractMetadata()', () => {
  describe('version OpenAPI standard', () => {
    it('"1.2.3" → major=1, minor=2, patch=3', () => {
      const result = extract('info:\n  title: Test\n  version: "1.2.3"');
      expect(result.versionMajor).toBe(1);
      expect(result.versionMinor).toBe(2);
      expect(result.versionPatch).toBe(3);
    });

    it('"1.0" → major=1, minor=0, patch=null', () => {
      const result = extract('info:\n  title: Test\n  version: "1.0"');
      expect(result.versionMajor).toBe(1);
      expect(result.versionMinor).toBe(0);
      expect(result.versionPatch).toBeNull();
    });

    it('"2" → major=2, minor=null, patch=null', () => {
      const result = extract('info:\n  title: Test\n  version: "2"');
      expect(result.versionMajor).toBe(2);
      expect(result.versionMinor).toBeNull();
      expect(result.versionPatch).toBeNull();
    });

    it('"0.0.0" → major=0, minor=0, patch=0', () => {
      const result = extract('info:\n  title: Test\n  version: "0.0.0"');
      expect(result.versionMajor).toBe(0);
      expect(result.versionMinor).toBe(0);
      expect(result.versionPatch).toBe(0);
    });
  });

  describe('extraction du nom et description', () => {
    it('title présent → name extrait', () => {
      const result = extract('info:\n  title: Mon API\n  version: "1.0.0"');
      expect(result.name).toBe('Mon API');
    });

    it('title absent → name=null', () => {
      const result = extract('info:\n  version: "1.0.0"');
      expect(result.name).toBeNull();
    });

    it('description présente → description extraite', () => {
      const result = extract('info:\n  title: Test\n  version: "1.0.0"\n  description: Une description');
      expect(result.description).toBe('Une description');
    });

    it('description absente → description=null', () => {
      const result = extract('info:\n  title: Test\n  version: "1.0.0"');
      expect(result.description).toBeNull();
    });
  });

  describe('cas limite de version', () => {
    it('version non numérique ("alpha") → major=null, minor=null, patch=null', () => {
      const result = extract('info:\n  title: Test\n  version: alpha');
      expect(result.versionMajor).toBeNull();
      expect(result.versionMinor).toBeNull();
      expect(result.versionPatch).toBeNull();
    });

    it('version absente → tout null', () => {
      const result = extract('info:\n  title: Test');
      expect(result.versionMajor).toBeNull();
      expect(result.versionMinor).toBeNull();
      expect(result.versionPatch).toBeNull();
    });

    it('version vide string "" → tout null', () => {
      const result = extract('info:\n  title: Test\n  version: ""');
      expect(result.versionMajor).toBeNull();
      expect(result.versionMinor).toBeNull();
      expect(result.versionPatch).toBeNull();
    });

    it('info absent → tout null', () => {
      const result = extract('asyncapi: "3.0.0"');
      expect(result.name).toBeNull();
      expect(result.description).toBeNull();
      expect(result.versionMajor).toBeNull();
      expect(result.versionMinor).toBeNull();
      expect(result.versionPatch).toBeNull();
    });
  });
});