import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';

import { apiRequest, buildKitchenApiUrl, getPath } from '../../src/api/client.js';

function createStore(overrides = {}) {
  return {
    config: {
      baseUrl: '',
      database: 'kitchen-db',
      ...(overrides.config || {}),
    },
    session: {
      applicationKey: 'app-key',
      hasValidated: false,
      state: 'pending_validation',
      ...(overrides.session || {}),
    },
    activeKitchen: {
      id: 'kitchen-1',
      ...(overrides.activeKitchen || {}),
    },
    ...overrides,
  };
}

describe('api/client', () => {
  let authFailureSpy;

  beforeEach(() => {
    authFailureSpy = vi.fn();
    globalThis.window = {
      location: {
        origin: 'https://app.local',
      },
      __loncApp: {
        handleAuthFailure: authFailureSpy,
      },
    };
    vi.spyOn(console, 'error').mockImplementation(() => {});
  });

  afterEach(() => {
    vi.restoreAllMocks();
    vi.unstubAllGlobals();
    delete globalThis.window;
  });

  it('returns configured path constants', () => {
    expect(getPath('items')).toBe('kitchen/items');
    expect(getPath('userApplication')).toBe('user/application/');
  });

  it('builds kitchen urls with encoded path segments and query values', () => {
    const store = createStore({
      config: {
        baseUrl: 'https://api.example.com',
        database: 'my db',
      },
      activeKitchen: {
        id: 'kitchen/01',
      },
    });

    const url = buildKitchenApiUrl(store, 'kitchen/items/grouped', {
      search_name: 'Milk + eggs',
      expanded: 1,
      ignored: '',
    });

    expect(url).toBe(
      'https://api.example.com/my%20db/kitchen/kitchen%2F01/kitchen/items/grouped?search_name=Milk+%2B+eggs&expanded=1',
    );
  });

  it('sends json request data and auth header through fetch', async () => {
    const store = createStore();
    const fetchSpy = vi.fn(async () =>
      new Response(JSON.stringify({ ok: true }), {
        status: 200,
        headers: {
          'content-type': 'application/json',
        },
      }),
    );
    vi.stubGlobal('fetch', fetchSpy);

    const payload = await apiRequest(store, getPath('items'), {
      method: 'POST',
      body: {
        name: 'Rice',
      },
      query: {
        label: 1,
      },
    });

    expect(payload).toEqual({ ok: true });

    const [url, request] = fetchSpy.mock.calls[0];
    expect(url).toBe('/kitchen-db/kitchen/kitchen-1/kitchen/items?label=1');
    expect(request.method).toBe('POST');
    expect(request.body).toBe('{"name":"Rice"}');
    expect(request.headers.get('Accept')).toBe('application/json');
    expect(request.headers.get('Content-Type')).toBe('application/json');
    expect(request.headers.get('Authorization')).toBe('Bearer app-key');
  });

  it('normalizes api error payload into ApiRequestError details', async () => {
    const store = createStore();
    vi.stubGlobal(
      'fetch',
      vi.fn(async () =>
        new Response(
          JSON.stringify({
            errors: {
              name: ['Required'],
              quantity: 'Must be positive',
            },
          }),
          {
            status: 400,
            headers: {
              'content-type': 'application/json',
            },
          },
        ),
      ),
    );

    await expect(apiRequest(store, getPath('items'))).rejects.toMatchObject({
      name: 'ApiRequestError',
      status: 400,
      details: {
        name: 'Required',
        quantity: 'Must be positive',
      },
    });
  });

  it('triggers auth failure handler after validated session receives auth errors', async () => {
    const store = createStore({
      session: {
        applicationKey: 'app-key',
        hasValidated: true,
        state: 'connected',
      },
    });

    vi.stubGlobal(
      'fetch',
      vi.fn(async () =>
        new Response(JSON.stringify({ detail: 'Unauthorized' }), {
          status: 401,
          headers: {
            'content-type': 'application/json',
          },
        }),
      ),
    );

    await expect(apiRequest(store, getPath('items'))).rejects.toMatchObject({
      name: 'ApiRequestError',
      status: 401,
    });

    expect(authFailureSpy).toHaveBeenCalledTimes(1);
  });
});