import { describe, expect, it } from 'vitest';
import { isApiProvider, isProviderOptions } from '../../src/types/providers';
import { createMockProvider, createProviderResponse } from '../factories/provider';

import type { ProviderOptions } from '../../src/types/providers';

describe('isApiProvider', () => {
  it('should correctly identify valid ApiProvider objects', () => {
    const validProviders = [
      createMockProvider({ response: createProviderResponse({ output: 'test' }) }),
      Object.assign(createMockProvider({ id: 'full-provider', config: { temperature: 0.7 } }), {
        callEmbeddingApi: async () => ({ embedding: [1, 2, 3] }),
        callClassificationApi: async () => ({ classification: { class1: 0.8 } }),
        delay: 1000,
        getSessionId: () => 'session-123',
        label: 'Test Provider',
        transform: 'toLowerCase()',
      }),
      createMockProvider({ id: 'minimal-provider' }),
    ];

    validProviders.forEach((provider) => {
      expect(isApiProvider(provider)).toBe(true);
    });
  });

  it('should correctly identify invalid ApiProvider objects', () => {
    const invalidProviders = [
      null,
      undefined,
      {},
      { id: 'string-id' },
      { id: null },
      { id: undefined },
      { id: 42 },
      { id: () => 'missing-call-api' },
      'string-provider',
      42,
      true,
      [],
      new Date(),
    ];

    invalidProviders.forEach((provider) => {
      expect(isApiProvider(provider)).toBe(false);
    });
  });
});

describe('isProviderOptions', () => {
  it('should correctly identify valid ProviderOptions objects', () => {
    const validOptions: ProviderOptions[] = [
      {
        id: 'test-provider',
      },
      {
        id: 'full-options',
        label: 'Test Provider',
        config: { temperature: 0.7 },
        prompts: ['Hello, {{name}}!'],
        transform: 'toLowerCase()',
        delay: 1000,
        env: { OPENAI_API_KEY: 'test-key' },
      },
      {
        id: 'minimal-options',
      },
    ];

    validOptions.forEach((options) => {
      expect(isProviderOptions(options)).toBe(true);
    });
  });

  it('should correctly identify invalid ProviderOptions objects', () => {
    const invalidOptions = [
      null,
      undefined,
      {},
      { id: undefined },
      { id: null },
      { id: 42 },
      { id: () => 'function-not-string' },
      { label: 'Missing ID' },
      'string-options',
      42,
      true,
      [],
      new Date(),
    ];

    invalidOptions.forEach((options) => {
      expect(isProviderOptions(options)).toBe(false);
    });
  });

  it('should handle edge cases', () => {
    const edgeCases = [
      { id: 'valid', extraField: 'ignored' },
      { id: 'valid', config: null },
      { id: 'valid', prompts: [] },
      { id: 'valid', delay: 0 },
      { id: 'valid', env: {} },
    ];

    edgeCases.forEach((options) => {
      expect(isProviderOptions(options)).toBe(true);
    });
  });
});