// L13 Planung — Geocoding: Normalisierung/Änderungserkennung, Nominatim-Anfrage (URL, User-Agent,
// Accept-Language, Auswertung, Fehler) mit injiziertem fetch, Drosselung 1/s mit Fake-Uhr, Processor mit
// Fake-Provider (Cache bei unveränderter Adresse, not_found, failed → Retry, manuelle Koordinaten,
// Provider none, Mandantentrennung), Hook beim Anlegen ohne Inline-Aufruf. Nominatim wird NIE aufgerufen.
// Lauf: npx tsx scripts/test-planung-geocode.ts

import "dotenv/config";
import { prisma } from "../src/server/db";
import { createTenant, ok, runSuite, section } from "./lib/e2e-fixture";
import { geocodingConfig, mapConfig } from "../src/server/services/geo/config";
import { requestSiteGeocoding } from "../src/server/services/geo/dispatch";
import { geocodeSite } from "../src/server/services/geo/geocode-site";
import { buildNominatimUrl, createNominatimProvider } from "../src/server/services/geo/nominatim";
import { addressChanged, geocodeQueryFor } from "../src/server/services/geo/normalize";
import { GeocodingError, setGeocodingProvider, type GeocodeAddress, type GeocodingProvider } from "../src/server/services/geo/provider";
import { createIntervalLimiter } from "../src/server/services/geo/rate-limit";
import { process as geocodeProcessor } from "../src/server/jobs/processors/geocode-site";
import { PROCESSORS } from "../src/server/jobs/processors";
import { createSite } from "../src/server/services/sites/sites";

const SLUG_A = "zz-planung-geo-a";
const SLUG_B = "zz-planung-geo-b";

// Guard: any request to a Nominatim host fails the suite.
let nominatimHits = 0;
const realFetch = globalThis.fetch;
globalThis.fetch = (async (input: RequestInfo | URL, init?: RequestInit) => {
  const url = input instanceof Request ? input.url : String(input);
  if (/nominatim|openstreetmap/i.test(url)) {
    nominatimHits++;
    throw new Error("Nominatim must never be called from tests");
  }
  return realFetch(input, init);
}) as typeof fetch;

function fakeProvider(answer: (a: GeocodeAddress) => { status: "ok"; latitude: number; longitude: number } | { status: "not_found" } | "throw") {
  const calls: GeocodeAddress[] = [];
  const provider: GeocodingProvider = {
    name: "fake",
    async geocode(a) {
      calls.push(a);
      const r = answer(a);
      if (r === "throw") throw new GeocodingError("http 503");
      return r;
    },
  };
  return { provider, calls };
}

runSuite("L13 Planung – Geocoding", [SLUG_A, SLUG_B], async () => {
  section("Normalisierung & Änderungserkennung");
  const addr = { street: "Hafenstraße", houseNumber: "12", postalCode: "20457", city: "Hamburg", country: "DE" };
  ok(geocodeQueryFor(addr) === "hafenstraße 12|20457|hamburg|de", `normierte Adresse (${geocodeQueryFor(addr)})`);
  ok(geocodeQueryFor({ ...addr, street: "  HAFENSTRASSE ".replace("SS", "ß"), city: "hamburg " }) === geocodeQueryFor(addr), "Groß-/Kleinschreibung und Leerzeichen egal");
  ok(geocodeQueryFor({ street: "Hafenstraße", houseNumber: "12" }) === null, "ohne PLZ und Ort → nicht verortbar");
  ok(!addressChanged(addr, { ...addr, city: "HAMBURG" }) && addressChanged(addr, { ...addr, houseNumber: "14" }), "nur relevante Adressänderungen zählen");

  section("Nominatim-Anfrage (ohne Netz)");
  const url = buildNominatimUrl("https://nominatim.example/", addr);
  ok(
    url.pathname === "/search" && url.searchParams.get("format") === "jsonv2" && url.searchParams.get("limit") === "1" && url.searchParams.get("street") === "12 Hafenstraße" && url.searchParams.get("postalcode") === "20457" && url.searchParams.get("city") === "Hamburg" && url.searchParams.get("countrycodes") === "de",
    `strukturierte Suche (${url.search})`,
  );
  const cfg = geocodingConfig({ APP_BASE_URL: "https://app.craftvia.example" });
  ok(/^Craftvia\/\d+\.\d+\.\d+ \(\+https:\/\/app\.craftvia\.example\)$/.test(cfg.userAgent) && cfg.url === "https://nominatim.openstreetmap.org" && cfg.provider === "nominatim", `Standard-User-Agent „${cfg.userAgent}“`);
  ok(geocodingConfig({ GEOCODING_USER_AGENT: "Betrieb/1 (+mailto:it@example.org)", GEOCODING_PROVIDER: "none", GEOCODING_URL: "https://geo.example/" }).userAgent === "Betrieb/1 (+mailto:it@example.org)", "User-Agent per GEOCODING_USER_AGENT überschreibbar");
  ok(geocodingConfig({ GEOCODING_PROVIDER: "none" }).provider === "none" && geocodingConfig({ GEOCODING_URL: "https://geo.example/" }).url === "https://geo.example", "Provider none / eigene GEOCODING_URL");
  ok(mapConfig({}).tileUrl === "https://tile.openstreetmap.org/{z}/{x}/{y}.png" && mapConfig({}).attribution.includes("OpenStreetMap"), "Kartenkacheln: OSM-Standard mit Namensnennung");

  const seen: { url: string; headers: Headers }[] = [];
  let reply: () => Response = () => Response.json([{ lat: "53.5413", lon: "9.9849" }]);
  const acquired: number[] = [];
  const nominatim = createNominatimProvider(
    { url: "https://nominatim.example", userAgent: "Craftvia/test (+https://app.example)", timeoutMs: 1000 },
    {
      fetch: (async (input: RequestInfo | URL, init?: RequestInit) => {
        seen.push({ url: String(input), headers: new Headers(init?.headers) });
        return reply();
      }) as typeof fetch,
      limiter: { acquire: async () => (acquired.push(Date.now()), Date.now()) },
    },
  );
  const hit = await nominatim.geocode(addr);
  ok(hit.status === "ok" && hit.latitude === 53.5413 && hit.longitude === 9.9849, "Treffer ausgewertet");
  ok(seen[0]?.headers.get("user-agent") === "Craftvia/test (+https://app.example)" && seen[0].headers.get("accept-language") === "de", "User-Agent und Accept-Language de gesetzt");
  ok(acquired.length === 1, "jede Anfrage läuft über den Drosselungs-Limiter");
  reply = () => Response.json([]);
  ok((await nominatim.geocode(addr)).status === "not_found", "leere Antwort → not_found");
  reply = () => new Response("busy", { status: 503 });
  let threw = false;
  try {
    await nominatim.geocode(addr);
  } catch (err) {
    threw = err instanceof GeocodingError;
  }
  ok(threw, "HTTP-Fehler → GeocodingError (wiederholbar)");

  section("Drosselung 1 Anfrage/s (Fake-Uhr)");
  let clock = 10_000;
  const sleeps: number[] = [];
  const limiter = createIntervalLimiter(1000, { now: () => clock, sleep: async (ms) => void sleeps.push(ms) });
  const slots = [await limiter.acquire(), await limiter.acquire(), await limiter.acquire()];
  ok(slots[0] === 10_000 && slots[1] === 11_000 && slots[2] === 12_000 && sleeps.join(",") === "1000,2000", `Slots im Sekundenabstand (${slots.join(",")}), Wartezeiten ${sleeps.join(",")}`);
  clock = 20_000;
  ok((await limiter.acquire()) === 20_000 && sleeps.length === 2, "nach Pause sofort wieder frei");

  section("geocodeSite mit Fake-Provider");
  const A = await createTenant(SLUG_A);
  const B = await createTenant(SLUG_B);
  const fake = fakeProvider((a) => (a.city === "Nirgendwo" ? { status: "not_found" } : { status: "ok", latitude: 53.55, longitude: a.houseNumber === "14" ? 10.01 : 10.0 }));
  setGeocodingProvider(fake.provider);
  const site = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo 1", ...addr } });

  ok((await geocodeSite(A.tenantId, site.id)) === "ok" && fake.calls.length === 1, "neue Adresse → ok, 1 Provider-Aufruf");
  const s1 = await prisma.site.findUniqueOrThrow({ where: { id: site.id } });
  ok(s1.latitude === 53.55 && s1.longitude === 10.0 && s1.geocodeStatus === "ok" && s1.geocodeQuery === geocodeQueryFor(addr) && !!s1.geocodedAt, "Koordinaten, Status, Adresse und Zeitpunkt am Objekt gespeichert");
  ok((await prisma.auditLog.count({ where: { tenantId: A.tenantId, entity: "site", entityId: site.id, action: "update" } })) === 1, "Koordinatenänderung auditiert");
  ok((await geocodeSite(A.tenantId, site.id)) === "cached" && fake.calls.length === 1, "unveränderte Adresse → Cache, kein weiterer Aufruf");
  await prisma.site.update({ where: { id: site.id }, data: { city: "hamburg " } });
  ok((await geocodeSite(A.tenantId, site.id)) === "cached" && fake.calls.length === 1, "nur Schreibweise geändert → Cache");
  await prisma.site.update({ where: { id: site.id }, data: { houseNumber: "14" } });
  ok((await geocodeSite(A.tenantId, site.id)) === "ok" && fake.calls.length === 2 && (await prisma.site.findUniqueOrThrow({ where: { id: site.id } })).longitude === 10.01, "geänderte Adresse → neu verortet");
  await prisma.site.update({ where: { id: site.id }, data: { city: "Nirgendwo", postalCode: "99999" } });
  ok((await geocodeSite(A.tenantId, site.id)) === "not_found" && fake.calls.length === 3, "unbekannte Adresse → not_found");
  const s2 = await prisma.site.findUniqueOrThrow({ where: { id: site.id } });
  ok(s2.geocodeStatus === "not_found" && s2.latitude === null && s2.longitude === null, "not_found entfernt veraltete automatische Koordinaten");
  ok((await geocodeSite(A.tenantId, site.id)) === "cached" && fake.calls.length === 3, "not_found wird für dieselbe Adresse nicht wiederholt");

  const failing = fakeProvider(() => "throw");
  const siteFail = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo Fehler", ...addr } });
  ok((await geocodeSite(A.tenantId, siteFail.id, { provider: failing.provider })) === "failed" && (await prisma.site.findUniqueOrThrow({ where: { id: siteFail.id } })).geocodeStatus === "failed", "Providerfehler → Status failed");
  ok((await geocodeSite(A.tenantId, siteFail.id)) === "ok", "failed wird beim nächsten Lauf erneut versucht");

  const manual = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo manuell", ...addr, latitude: 50.1, longitude: 8.6 } });
  const callsBefore = fake.calls.length;
  ok((await geocodeSite(A.tenantId, manual.id)) === "manual" && fake.calls.length === callsBefore, "manuelle Koordinaten → kein Aufruf");
  const m = await prisma.site.findUniqueOrThrow({ where: { id: manual.id } });
  ok(m.latitude === 50.1 && m.longitude === 8.6 && m.geocodeStatus === "skipped", "manuelle Koordinaten bleiben unverändert (Status skipped)");

  const none = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo none", ...addr } });
  ok((await geocodeSite(A.tenantId, none.id, { provider: null })) === "skipped" && (await prisma.site.findUniqueOrThrow({ where: { id: none.id } })).latitude === null, "Provider none → skipped, ohne Ortsangabe, kein Fehler");
  const noAddr = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo ohne Adresse", street: "Irgendwo" } });
  ok((await geocodeSite(A.tenantId, noAddr.id)) === "skipped" && fake.calls.length === callsBefore, "unvollständige Adresse → skipped ohne Aufruf");

  const bCalls = fake.calls.length;
  ok((await geocodeSite(B.tenantId, none.id)) === "missing" && fake.calls.length === bCalls, "Mandant B: Objekt von A nicht gefunden, kein Aufruf");
  ok((await prisma.site.findUniqueOrThrow({ where: { id: none.id } })).geocodeStatus === "skipped", "Objekt von A unverändert");

  section("Processor & Hook");
  ok(typeof PROCESSORS["geocode-site"] === "function", "Processor geocode-site registriert");
  const viaJob = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo Job", ...addr } });
  await geocodeProcessor({ tenantId: A.tenantId, entityId: viaJob.id });
  ok((await prisma.site.findUniqueOrThrow({ where: { id: viaJob.id } })).geocodeStatus === "ok", "Processor verortet das Objekt");
  setGeocodingProvider(failing.provider);
  const viaJobFail = await prisma.site.create({ data: { tenantId: A.tenantId, customerId: A.customerId, name: "Geo Job Fehler", ...addr } });
  let jobThrew = false;
  try {
    await geocodeProcessor({ tenantId: A.tenantId, entityId: viaJobFail.id });
  } catch {
    jobThrew = true;
  }
  ok(jobThrew, "Processor wirft bei failed → BullMQ wiederholt");
  setGeocodingProvider(fake.provider);

  const prev = process.env.GEOCODING_PROVIDER;
  process.env.GEOCODING_PROVIDER = "none";
  ok((await requestSiteGeocoding(A.tenantId, viaJob.id)) === false, "GEOCODING_PROVIDER=none → kein Job");
  process.env.GEOCODING_PROVIDER = "nominatim";
  const hookCalls = fake.calls.length;
  const created = await createSite(A.ctx.backoffice, { customerId: A.customerId, name: "Geo Hook", street: "Am Kaiserkai", houseNumber: "1", postalCode: "20457", city: "Hamburg" });
  await new Promise((resolve) => setTimeout(resolve, 100));
  ok(!!created.id && fake.calls.length === hookCalls, "Anlage eines Objekts: Verortung nur per Queue, nie inline im Request");
  if (prev === undefined) delete process.env.GEOCODING_PROVIDER;
  else process.env.GEOCODING_PROVIDER = prev;
  setGeocodingProvider(undefined);

  ok(nominatimHits === 0, "Nominatim wurde in keinem Test aufgerufen");
});