fix(pl24): model listesi giriş noktasını catmeta'dan çöz

Prod'da browse onarması Peugeot'yu taşıdı (64 bayat satır → 39 güncel
model) ama Volvo'da "upstream returned no models" ile korumalı dala
düştü. Sebep: `BACKEND_MODEL_PATH`'te p5volvo yok ve yedek keşif yedi
bilinen yolu deniyor — Volvo'nunki `/extern/vehicles/models`, yani
ÇOĞUL "vehicles", listede yok. Volvo/Polestar browse bu yüzden sıfır
model tohumluyor ve emekli P4 listesini sunmaya devam ediyordu.

Otoritatif kaynak her P5 backend'inin kendi `/extern/catmeta`
yanıtındaki `data.catalogEntryPoint.path`. Canlı doğrulandı:
  p5volvo → /p5volvo/extern/vehicles/models  (60 model: XC90, V40…)
  p5psa   → /p5psa/extern/vehicle/catalogs

İki değişiklik:
- p5psa ve p5volvo `BACKEND_MODEL_PATH`'e sabitlendi (sıfır ek istek).
  p5psa zaten çalışıyordu ama her çağrıda beş boşa probe isteğiyle
  yeniden keşfediliyordu.
- `resolveModelPathFromCatmeta()`: haritada olmayan backend artık yedi
  kör probe yerine tek otoritatif catmeta çağrısı yapıyor. Sonuç
  backend başına 30 gün cache'leniyor (olumsuz sonuç dahil), yani
  backend ömrü boyunca tek istek; PL24 bir ucu taşırsa kendiliğinden
  düzeliyor. Hata durumunda null → eski yedeğe düşer.

8 yeni test. api 638 test geçiyor.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
2026-09-20 09:30:53 +03:00
parent a4e22e1bb8
commit d75c468341
2 changed files with 211 additions and 1 deletions

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@@ -0,0 +1,127 @@
import { beforeEach, describe, expect, it, vi } from "vitest";
import { PL24Service } from "./pl24.service";
/**
* Model-list entry point resolution (plv2.md, bulgu p5core-08).
*
* `BACKEND_MODEL_PATH` eksik kaldığında eski davranış yedi bilinen yolu sırayla
* denemekti: paylaşılan günlük bütçeden çağrı başına yedi isteğe kadar, ve
* listede olmayan bir yol için sessiz sıfır sonuç. Volvo tam olarak buydu —
* `/extern/vehicles/models` (çoğul "vehicles") listede yok, dolayısıyla
* Volvo/Polestar browse sıfır model tohumlayıp emekli P4 listesini sunmaya
* devam ediyordu.
*
* Otoritatif kaynak her P5 backend'inin kendi `/extern/catmeta` yanıtındaki
* `data.catalogEntryPoint.path`. Canlı doğrulama (2026-09-20):
* p5volvo → /p5volvo/extern/vehicles/models (60 model)
* p5psa → /p5psa/extern/vehicle/catalogs
*/
type Resolver = {
resolveModelPathFromCatmeta: (
base: string,
svc: string,
headers: Record<string, string>,
) => Promise<string | null>;
baseUrl: string;
language: string;
redis: {
get: (k: string) => Promise<string | null>;
set: (k: string, v: string, ttl?: number) => Promise<unknown>;
};
logger: { log: (m: string) => void; warn: (m: string) => void };
};
function makeService(opts: {
cached?: string | null;
catmeta?: unknown;
status?: number;
throws?: boolean;
}) {
const sets: Array<[string, string]> = [];
const svc = Object.create(PL24Service.prototype) as unknown as Resolver;
svc.baseUrl = "https://pl24.test";
svc.language = "tr";
svc.redis = {
get: vi.fn(async () => opts.cached ?? null),
set: vi.fn(async (k: string, v: string) => {
sets.push([k, v]);
return undefined;
}),
};
svc.logger = { log: vi.fn(), warn: vi.fn() };
const fetchMock = vi.fn(async () => {
if (opts.throws) throw new Error("network down");
return {
ok: (opts.status ?? 200) < 400,
status: opts.status ?? 200,
json: async () => opts.catmeta ?? {},
};
});
vi.stubGlobal("fetch", fetchMock);
return { svc, sets, fetchMock };
}
const volvoMeta = {
data: {
catalogEntryPoint: {
wid: "modelsTable",
path: "/p5volvo/extern/vehicles/models?lang=en&serviceName=volvo_parts",
},
},
};
describe("resolveModelPathFromCatmeta", () => {
beforeEach(() => vi.unstubAllGlobals());
it("catmeta'daki giriş noktasını backend'e göreli yola indirger", async () => {
const { svc } = makeService({ catmeta: volvoMeta });
const out = await svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {});
expect(out).toBe("/extern/vehicles/models");
});
it("çözülen yolu 30 gün cache'ler", async () => {
const { svc, sets } = makeService({ catmeta: volvoMeta });
await svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {});
expect(sets[0][0]).toBe("pl24:modelpath:p5volvo");
expect(sets[0][1]).toBe("/extern/vehicles/models");
});
it("cache'lenmiş yol için upstream'e hiç gitmez", async () => {
const { svc, fetchMock } = makeService({ cached: "/extern/vehicles/models" });
const out = await svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {});
expect(out).toBe("/extern/vehicles/models");
expect(fetchMock).not.toHaveBeenCalled();
});
it("olumsuz sonuç da cache'lenir — her browse'da yeniden denenmez", async () => {
const { svc, fetchMock } = makeService({ cached: "none" });
expect(await svc.resolveModelPathFromCatmeta("/p5x", "x_parts", {})).toBeNull();
expect(fetchMock).not.toHaveBeenCalled();
});
it("catmeta yoksa veya şekil beklenmedikse null döner", async () => {
const { svc, sets } = makeService({ catmeta: { data: {} } });
expect(await svc.resolveModelPathFromCatmeta("/p5x", "x_parts", {})).toBeNull();
expect(sets[0][1]).toBe("none");
});
it("HTTP hatasında null döner", async () => {
const { svc } = makeService({ status: 403, catmeta: volvoMeta });
expect(await svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {})).toBeNull();
});
it("ağ hatası fırlatmaz", async () => {
const { svc } = makeService({ throws: true });
await expect(
svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {}),
).resolves.toBeNull();
});
it("/extern/ ile başlamayan yolu kabul etmez", async () => {
const { svc } = makeService({
catmeta: { data: { catalogEntryPoint: { path: "https://baska.site/kotu" } } },
});
expect(await svc.resolveModelPathFromCatmeta("/p5volvo", "volvo_parts", {})).toBeNull();
});
});

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@@ -1137,6 +1137,78 @@ export class PL24Service {
// ==================== PRIVATE: Response parsers ====================
/**
* Ask a P5 backend where its own model list lives, instead of guessing.
*
* Every P5 backend serves `/extern/catmeta`, whose `data.catalogEntryPoint.path`
* is the authoritative browse entry point — e.g. p5psa answers
* `/p5psa/extern/vehicle/catalogs`, p5volvo `/p5volvo/extern/vehicles/models`.
* The old behaviour, when `BACKEND_MODEL_PATH` had no entry, was to fire the
* seven known paths in turn and keep whichever returned rows. That costs up to
* seven upstream requests per call on a shared daily budget, and it silently
* fails for any backend whose path is not already on the list — which is how
* Volvo/Polestar browse ended up seeding zero models while still serving the
* retired P4 listing.
*
* The resolved path is cached per backend (30 days) so this costs one request
* for a backend's whole lifetime, and it self-heals if PL24 moves an endpoint.
* Returns null on any failure; the caller then falls back as before.
*/
private async resolveModelPathFromCatmeta(
catalogBase: string,
serviceName: string,
headers: Record<string, string>,
): Promise<string | null> {
const cacheKey = `pl24:modelpath:${catalogBase.replace(/^\//, "")}`;
try {
const cached = await this.redis.get(cacheKey);
if (cached) return cached === "none" ? null : cached;
} catch {
// Redis down — resolve live rather than failing the listing.
}
let resolved: string | null = null;
try {
const url = `${this.baseUrl}${catalogBase}/extern/catmeta?serviceName=${serviceName}&country=DE&lang=${this.language}`;
const res = await fetch(url, { method: "GET", headers, signal: AbortSignal.timeout(15000) });
if (res.ok) {
const meta = (await res.json()) as {
data?: { catalogEntryPoint?: { path?: string } };
};
const full = meta.data?.catalogEntryPoint?.path;
if (full) {
// catmeta returns the absolute path with query string
// ("/p5volvo/extern/vehicles/models?lang=en&serviceName=…"); the caller
// appends its own lang/serviceName, so keep only the backend-relative
// path segment.
const withoutQuery = full.split("?")[0];
const relative = withoutQuery.startsWith(catalogBase)
? withoutQuery.slice(catalogBase.length)
: withoutQuery;
if (relative.startsWith("/extern/")) resolved = relative;
}
}
} catch (err) {
this.logger.warn(
`fetchVehicleList: catmeta lookup failed for ${serviceName}: ${(err as Error).message}`,
);
}
if (resolved) {
this.logger.log(
`fetchVehicleList: ${serviceName} model path resolved from catmeta → ${resolved}`,
);
}
try {
// Cache the negative too, so a backend without a usable catmeta does not
// re-probe on every browse.
await this.redis.set(cacheKey, resolved ?? "none", 30 * 86_400);
} catch {
// best effort
}
return resolved;
}
/**
* Parse vehicle data from directAccess response.
*/
@@ -2226,11 +2298,22 @@ export class PL24Service {
p5mitsubishi: "/extern/vehicles/vehiclesOverview", // Mitsubishi
p5suzuki: "/extern/vehicle/modelFamilies", // Suzuki
p5man: "/extern/model/categories", // MAN trucks
// Pinned 2026-09-20 from each backend's own catmeta `catalogEntryPoint`
// (see resolveModelPathFromCatmeta). Before this, p5psa needed five wasted
// probe requests to rediscover its path on every call, and p5volvo found
// nothing at all — none of the seven guessed paths matches its plural
// `/extern/vehicles/models`, so Volvo/Polestar browse silently seeded zero
// models and kept serving the dead P4 listing.
p5psa: "/extern/vehicle/catalogs", // Peugeot, Citroën, DS, psa_opel, psa_vauxhall
p5volvo: "/extern/vehicles/models", // Volvo, Polestar — NOTE: plural "vehicles"
};
// catalogBase is like "/p5vwag" — strip leading slash for map lookup
const backendKey = catalogBase.replace(/^\//, "");
const modelPath = BACKEND_MODEL_PATH[backendKey] ?? "/extern/vehicle/modelfamilies";
const modelPath =
BACKEND_MODEL_PATH[backendKey] ??
(await this.resolveModelPathFromCatmeta(catalogBase, serviceName, headers)) ??
"/extern/vehicle/modelfamilies";
const url = `${this.baseUrl}${catalogBase}${modelPath}?lang=${this.language}&serviceName=${serviceName}`;