import { describe, it, expect } from 'vitest';

import { listHandler, createHandler } from '@/app/api/v1/companies/route';
import { getHandler, patchHandler, deleteHandler } from '@/app/api/v1/companies/[id]/route';
import { autocompleteHandler } from '@/app/api/v1/companies/autocomplete/route';
import { db } from '@/lib/db';
import { companies } from '@/lib/db/schema';
import { eq } from 'drizzle-orm';
import { makeMockCtx, makeMockRequest } from '../../helpers/route-tester';
import { makePort, makeCompany, makeFullPermissions } from '../../helpers/factories';

describe('POST /api/v1/companies', () => {
  it('creates a company and returns 201', async () => {
    const port = await makePort();
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const name = `Acme Corp ${Math.random().toString(36).slice(2, 8)}`;
    const req = makeMockRequest('POST', 'http://localhost/api/v1/companies', {
      body: { name },
    });
    const res = await createHandler(req, ctx, {});
    expect(res.status).toBe(201);
    const body = await res.json();
    expect(body.data.name).toBe(name);
    expect(body.data.portId).toBe(port.id);
    expect(body.data.status).toBe('active');
  });

  it('returns 409 (ConflictError) on duplicate name case-insensitive in same port', async () => {
    const port = await makePort();
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const name = `DupeCo ${Math.random().toString(36).slice(2, 8)}`;

    const req1 = makeMockRequest('POST', 'http://localhost/api/v1/companies', {
      body: { name },
    });
    const res1 = await createHandler(req1, ctx, {});
    expect(res1.status).toBe(201);

    // Same name with different case — should still conflict.
    const req2 = makeMockRequest('POST', 'http://localhost/api/v1/companies', {
      body: { name: name.toUpperCase() },
    });
    const res2 = await createHandler(req2, ctx, {});
    expect(res2.status).toBe(409);
  });

  it('returns 400 on missing name', async () => {
    const port = await makePort();
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('POST', 'http://localhost/api/v1/companies', {
      body: {},
    });
    const res = await createHandler(req, ctx, {});
    expect(res.status).toBe(400);
  });

  it('allows same name in different port', async () => {
    const portA = await makePort();
    const portB = await makePort();
    const name = `SharedName ${Math.random().toString(36).slice(2, 8)}`;

    const ctxA = makeMockCtx({ portId: portA.id, permissions: makeFullPermissions() });
    const resA = await createHandler(
      makeMockRequest('POST', 'http://localhost/api/v1/companies', { body: { name } }),
      ctxA,
      {},
    );
    expect(resA.status).toBe(201);

    const ctxB = makeMockCtx({ portId: portB.id, permissions: makeFullPermissions() });
    const resB = await createHandler(
      makeMockRequest('POST', 'http://localhost/api/v1/companies', { body: { name } }),
      ctxB,
      {},
    );
    expect(resB.status).toBe(201);
  });
});

describe('GET /api/v1/companies', () => {
  it('returns tenant-scoped companies with pagination shape', async () => {
    const port = await makePort();
    await makeCompany({ portId: port.id, overrides: { name: 'ListedCo' } });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest(
      'GET',
      'http://localhost/api/v1/companies?page=1&limit=20&order=desc',
    );
    const res = await listHandler(req, ctx, {});
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data.some((c: { name: string }) => c.name === 'ListedCo')).toBe(true);
    expect(body.pagination.page).toBe(1);
    expect(body.pagination.pageSize).toBe(20);
    expect(typeof body.pagination.total).toBe('number');
    expect(typeof body.pagination.totalPages).toBe('number');
    expect(typeof body.pagination.hasNextPage).toBe('boolean');
    expect(typeof body.pagination.hasPreviousPage).toBe('boolean');
  });

  it('filters by status', async () => {
    const port = await makePort();
    await makeCompany({
      portId: port.id,
      overrides: { name: 'ActiveCo', status: 'active' },
    });
    await makeCompany({
      portId: port.id,
      overrides: { name: 'DissolvedCo', status: 'dissolved' },
    });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest(
      'GET',
      'http://localhost/api/v1/companies?page=1&limit=20&order=desc&status=dissolved',
    );
    const res = await listHandler(req, ctx, {});
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data.every((c: { status: string }) => c.status === 'dissolved')).toBe(true);
    expect(body.data.some((c: { name: string }) => c.name === 'DissolvedCo')).toBe(true);
    expect(body.data.some((c: { name: string }) => c.name === 'ActiveCo')).toBe(false);
  });
});

describe('GET /api/v1/companies/[id]', () => {
  it('returns company for valid id + port', async () => {
    const port = await makePort();
    const company = await makeCompany({
      portId: port.id,
      overrides: { name: 'DetailCo' },
    });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('GET', `http://localhost/api/v1/companies/${company.id}`);
    const res = await getHandler(req, ctx, { id: company.id });
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data.id).toBe(company.id);
    expect(body.data.name).toBe('DetailCo');
  });

  it('returns 404 for cross-tenant', async () => {
    const portA = await makePort();
    const portB = await makePort();
    const company = await makeCompany({ portId: portA.id });
    const ctx = makeMockCtx({ portId: portB.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('GET', `http://localhost/api/v1/companies/${company.id}`);
    const res = await getHandler(req, ctx, { id: company.id });
    expect(res.status).toBe(404);
  });
});

describe('PATCH /api/v1/companies/[id]', () => {
  it('updates allowed fields', async () => {
    const port = await makePort();
    const company = await makeCompany({
      portId: port.id,
      overrides: { name: 'BeforeCo' },
    });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('PATCH', `http://localhost/api/v1/companies/${company.id}`, {
      body: { name: 'AfterCo', notes: 'updated notes' },
    });
    const res = await patchHandler(req, ctx, { id: company.id });
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data.name).toBe('AfterCo');
    expect(body.data.notes).toBe('updated notes');
  });

  it('returns 404 for cross-tenant', async () => {
    const portA = await makePort();
    const portB = await makePort();
    const company = await makeCompany({ portId: portA.id });
    const ctx = makeMockCtx({ portId: portB.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('PATCH', `http://localhost/api/v1/companies/${company.id}`, {
      body: { name: 'hijack' },
    });
    const res = await patchHandler(req, ctx, { id: company.id });
    expect(res.status).toBe(404);
  });
});

describe('DELETE /api/v1/companies/[id]', () => {
  it('archives the company (204)', async () => {
    const port = await makePort();
    const company = await makeCompany({ portId: port.id });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('DELETE', `http://localhost/api/v1/companies/${company.id}`);
    const res = await deleteHandler(req, ctx, { id: company.id });
    expect(res.status).toBe(204);
    const [row] = await db.select().from(companies).where(eq(companies.id, company.id));
    expect(row?.archivedAt).not.toBeNull();
  });
});

describe('GET /api/v1/companies/autocomplete', () => {
  it('returns matching companies by name', async () => {
    const port = await makePort();
    await makeCompany({
      portId: port.id,
      overrides: { name: 'AutoCompleteCoMatch One' },
    });
    await makeCompany({
      portId: port.id,
      overrides: { name: 'OtherCompanyName' },
    });
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest(
      'GET',
      'http://localhost/api/v1/companies/autocomplete?q=AutoCompleteCoMatch',
    );
    const res = await autocompleteHandler(req, ctx, {});
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data.length).toBeGreaterThanOrEqual(1);
    expect(body.data.every((c: { name: string }) => c.name.includes('AutoCompleteCoMatch'))).toBe(
      true,
    );
  });

  it('returns empty array when q missing', async () => {
    const port = await makePort();
    const ctx = makeMockCtx({ portId: port.id, permissions: makeFullPermissions() });
    const req = makeMockRequest('GET', 'http://localhost/api/v1/companies/autocomplete');
    const res = await autocompleteHandler(req, ctx, {});
    expect(res.status).toBe(200);
    const body = await res.json();
    expect(body.data).toEqual([]);
  });
});