/**
 * The geocoding surface, against the live seeded database.
 *
 *   pnpm services:up && pnpm db:migrate && pnpm db:seed
 *
 * No Mapbox token is set in test, and that is deliberate: the behaviour worth
 * pinning is what happens when the geocoder is NOT available. Every one of these
 * paths used to end with the city centre silently stored as if it were an
 * address, so "degrades honestly" is the property under test.
 */
import { config } from 'dotenv';
import { sql } from 'drizzle-orm';
import { afterAll, beforeAll, describe, expect, it } from 'vitest';

config({ path: '../../.env' });

const { closePool, db } = await import('@linkder/db');
const { appRouter } = await import('../src/root');
const { createInnerContext } = await import('../src/context');
const { createCallerFactory } = await import('../src/trpc');

const createCaller = createCallerFactory(appRouter);
type Session = import('../src/context').Session;

function callerFor(session: Session | null) {
  return createCaller(createInnerContext({ db, session }));
}

const clientSession = (userId: string): Session => ({
  userId,
  role: 'client',
  name: 'Test Client',
  email: 'client@test',
  phone: null,
  verificationStatus: null,
});

const RUN = Math.random().toString(36).slice(2, 8);
const CITY = {
  lat: Number(process.env.NEXT_PUBLIC_CITY_LAT ?? 41.3874),
  lng: Number(process.env.NEXT_PUBLIC_CITY_LNG ?? 2.1686),
};

let client: string;
let plumberCat: string;

beforeAll(async () => {
  const [row] = await db.execute<{ id: string }>(sql`
    INSERT INTO users (name, email, role)
    VALUES ('Geo Probe', ${`geo-${RUN}@example.com`}, 'client')
    RETURNING id
  `);
  client = row!.id;

  const [cat] = await db.execute<{ id: string }>(
    sql`SELECT id FROM categories WHERE slug = 'plumber' LIMIT 1`,
  );
  plumberCat = cat!.id;
});

afterAll(async () => {
  await db.execute(sql`DELETE FROM users WHERE id = ${client}`);
  await closePool();
});

describe('geocode.suggest', () => {
  it('is not reachable without a session', async () => {
    // Unlike pro.search this costs money per call, so the session is the first
    // cost bound.
    await expect(callerFor(null).geocode.suggest({ q: 'carrer' })).rejects.toThrow(/signed in/i);
  });

  it('caps the query length', async () => {
    await expect(
      callerFor(clientSession(client)).geocode.suggest({ q: 'x'.repeat(201) }),
    ).rejects.toThrow();
  });

  it('caps how many suggestions can be asked for', async () => {
    await expect(
      callerFor(clientSession(client)).geocode.suggest({ q: 'carrer', limit: 50 }),
    ).rejects.toThrow();
  });

  it('returns an empty list rather than failing when unconfigured', async () => {
    // A provider outage must not take an address field — and therefore a whole
    // form — down with it.
    const result = await callerFor(clientSession(client)).geocode.suggest({ q: 'carrer de sants' });
    expect(result.results).toEqual([]);
    expect(result.configured).toBe(false);
  });
});

describe('job.create resolves the point server-side', () => {
  const base = {
    categoryId: '',
    title: 'Tap dripping in the bathroom',
    description: 'The cold tap drips constantly and the washer looks perished.',
    photos: [] as string[],
    urgency: 'flexible' as const,
  };

  async function readJob(id: string) {
    const [row] = await db.execute<{
      precision: string;
      address_text: string;
      place_id: string | null;
      lat: number;
      lng: number;
    }>(sql`
      SELECT location_precision AS precision,
             address_text,
             location_place_id AS place_id,
             ST_Y(location::geometry) AS lat,
             ST_X(location::geometry) AS lng
        FROM jobs WHERE id = ${id}
    `);
    return row!;
  }

  it('records an unresolvable address as city precision, and still posts', async () => {
    // The heart of it. This used to store the city centre and label the row an
    // address, so every distance computed from it was a fiction.
    const job = await callerFor(clientSession(client)).job.create({
      ...base,
      categoryId: plumberCat,
      place: { source: 'none', label: 'Somewhere near the big roundabout' },
    });

    const row = await readJob(job.id);
    expect(row.precision).toBe('city');
    expect(row.place_id).toBeNull();
    expect(Number(row.lat)).toBeCloseTo(CITY.lat, 4);
    expect(Number(row.lng)).toBeCloseTo(CITY.lng, 4);
    // What they typed survives — it is a note to the pro, just not a location.
    expect(row.address_text).toBe('Somewhere near the big roundabout');
  });

  it('takes a device fix at its word but never calls it exact', async () => {
    const job = await callerFor(clientSession(client)).job.create({
      ...base,
      categoryId: plumberCat,
      place: { source: 'device', lat: 41.4036, lng: 2.1744, label: 'Gracia' },
    });

    const row = await readJob(job.id);
    // A handset fix is real, so the coordinates are kept as sent...
    expect(Number(row.lat)).toBeCloseTo(41.4036, 4);
    expect(Number(row.lng)).toBeCloseTo(2.1744, 4);
    // ...but it is metres out on a good day, so it must not rank as a rooftop.
    expect(row.precision).toBe('approximate');
  });

  it('falls back rather than trusting a placeId it cannot resolve', async () => {
    // With no geocoder there is nothing to verify the id against, and an
    // unverifiable id must not become a coordinate.
    const job = await callerFor(clientSession(client)).job.create({
      ...base,
      categoryId: plumberCat,
      place: { source: 'place', placeId: 'made-up-id', label: 'Carrer de Sants 12' },
    });

    const row = await readJob(job.id);
    expect(row.precision).toBe('city');
    expect(row.place_id).toBeNull();
  });

  it('no longer accepts raw coordinates at all', async () => {
    // The old shape. Anyone could put a job anywhere on earth with it.
    await expect(
      callerFor(clientSession(client)).job.create({
        ...base,
        categoryId: plumberCat,
        // @ts-expect-error — the field is gone from the schema on purpose.
        location: { lat: 0, lng: 0 },
        addressText: 'Null Island',
      }),
    ).rejects.toThrow();
  });
});