Complete TASK-071 public scoreboard adapter

ai/tasks/done/TASK-071-public-scoreboard-provider-adapter.md

@@ -0,0 +1,66 @@
+# TASK-071-public-scoreboard-provider-adapter
+
+## Goal
+Adaptar la fuente actual public-scoreboard al nuevo contrato de proveedor para que siga siendo la fuente estándar en desarrollo sin romper el comportamiento existente.
+
+## Context
+Una vez exista la abstracción de fuente, hay que mover la lógica actual a un proveedor explícito de tipo public-scoreboard. Eso permitirá mantener dev estable mientras se prepara RCON para producción.
+
+## Steps
+1. Revisar la lógica actual que usa scoreboard/CRCON público.
+2. Encapsularla dentro del proveedor public-scoreboard compatible con la nueva abstracción.
+3. Asegurar que desarrollo sigue funcionando con la misma semántica actual.
+4. Mantener el mismo resultado en:
+   - ingestión histórica
+   - snapshots
+   - estado actual de servidores
+5. Reducir duplicaciones y dejar clara la responsabilidad del proveedor.
+6. Actualizar documentación mínima.
+7. No implementar todavía lógica RCON en esta task.
+8. Al completar la implementación:
+   - dejar el repositorio consistente
+   - hacer commit
+   - hacer push al remoto si el entorno lo permite
+
+## Files to Read First
+- AGENTS.md
+- backend/README.md
+- backend/app/config.py
+- backend/app/historical_ingestion.py
+- backend/app/payloads.py
+- backend/app/routes.py
+- backend/app/source_provider.py
+- docs/historical-crcon-source-discovery.md
+
+## Expected Files to Modify
+- backend/app/historical_ingestion.py
+- backend/app/payloads.py
+- backend/app/routes.py
+- opcionalmente nuevos módulos, por ejemplo:
+  - backend/app/providers/public_scoreboard_provider.py
+- backend/README.md
+
+## Constraints
+- No romper el comportamiento actual en dev.
+- No hacer cambios destructivos.
+- Mantener el trabajo centrado en encapsular correctamente la fuente actual.
+
+## Validation
+- El proveedor public-scoreboard funciona bajo la nueva abstracción.
+- El modo desarrollo sigue comportándose como antes.
+- Los cambios quedan committeados y se hace push si el entorno lo permite.
+
+## Change Budget
+- Preferir menos de 5 archivos modificados o creados.
+- Preferir menos de 220 líneas cambiadas.
+
+## Outcome
+- Se extrajo la logica del proveedor historico actual a `backend/app/providers/public_scoreboard_provider.py`.
+- `backend/app/data_sources.py` quedo reducido a contratos y seleccion de proveedor por entorno.
+- El comportamiento de desarrollo se mantuvo estable con `public-scoreboard` como proveedor historico por defecto.
+- No se introdujo logica RCON en esta task.
+
+## Validation Notes
+- `python -m compileall backend/app` completo sin errores tras el refactor.
+- La diff quedo limitada al selector de proveedores, el adapter publico y la documentacion minima.
+- `backend/app/source_provider.py` no existia; se reutilizo `backend/app/data_sources.py` como punto de seleccion ya introducido en la task anterior.

backend/README.md

@@ -247,12 +247,15 @@ Defaults actuales:
 - `HLL_BACKEND_LIVE_DATA_SOURCE=a2s`
 - `HLL_BACKEND_HISTORICAL_DATA_SOURCE=public-scoreboard`
 
-La seleccion efectiva se resuelve en `app/data_sources.py`:
+La seleccion efectiva se resuelve en `app/data_sources.py` y en adapters
+dedicados dentro de `app/providers/`:
 
 - `get_live_data_source()` entrega el proveedor usado por `payloads.py`
   cuando `/api/servers` necesita un refresh real
 - `get_historical_data_source()` entrega el proveedor usado por
   `historical_ingestion.py` para bootstrap y refresh incremental
+- `providers/public_scoreboard_provider.py` encapsula la semantica actual del
+  scoreboard/CRCON publico bajo el contrato historico
 
 En esta task solo queda implementado el proveedor ya operativo de desarrollo:
 

backend/app/data_sources.py

@@ -1,35 +1,19 @@
-"""Data source provider contracts for live and historical backend flows."""
+"""Data source selection and contracts for live and historical backend flows."""
 
 from __future__ import annotations
 
-import json
-import time
-from concurrent.futures import ThreadPoolExecutor
 from dataclasses import dataclass
 from typing import Protocol
-from urllib.error import HTTPError, URLError
-from urllib.parse import urlencode
-from urllib.request import Request, urlopen
 
 from .collector import collect_server_snapshots
-from .config import (
-    get_historical_crcon_request_retries,
-    get_historical_crcon_request_timeout_seconds,
-    get_historical_crcon_retry_delay_seconds,
-    get_historical_data_source_kind,
-    get_live_data_source_kind,
-)
+from .config import get_historical_data_source_kind, get_live_data_source_kind
+from .providers.public_scoreboard_provider import PublicScoreboardHistoricalDataSource
 from .server_targets import A2SServerTarget, load_a2s_targets
 
 
-HISTORICAL_SOURCE_PUBLIC_SCOREBOARD = "public-scoreboard"
 LIVE_SOURCE_A2S = "a2s"
 SOURCE_KIND_RCON = "rcon"
 
-PUBLIC_INFO_ENDPOINT = "/api/get_public_info"
-MATCH_LIST_ENDPOINT = "/api/get_scoreboard_maps"
-MATCH_DETAIL_ENDPOINT = "/api/get_map_scoreboard"
-
 
 class HistoricalDataSource(Protocol):
     """Contract for historical providers used by ingestion flows."""
@@ -64,115 +48,6 @@ class LiveDataSource(Protocol):
         """Return optional server connection metadata keyed by external id."""
 
 
-@dataclass(frozen=True, slots=True)
-class PublicScoreboardHistoricalDataSource:
-    """Historical provider backed by the public CRCON scoreboard JSON API."""
-
-    source_kind: str = HISTORICAL_SOURCE_PUBLIC_SCOREBOARD
-
-    def fetch_public_info(self, *, base_url: str) -> dict[str, object]:
-        return self._fetch_dict_payload(base_url, PUBLIC_INFO_ENDPOINT)
-
-    def fetch_match_page(self, *, base_url: str, page: int, limit: int) -> dict[str, object]:
-        return self._fetch_dict_payload(
-            base_url,
-            MATCH_LIST_ENDPOINT,
-            {"page": page, "limit": limit},
-            context=f"page={page}",
-        )
-
-    def fetch_match_details(
-        self,
-        *,
-        base_url: str,
-        match_ids: list[str],
-        max_workers: int,
-    ) -> list[dict[str, object]]:
-        if not match_ids:
-            return []
-        if max_workers <= 1:
-            return [
-                self._fetch_match_detail(base_url=base_url, match_id=match_id)
-                for match_id in match_ids
-            ]
-
-        with ThreadPoolExecutor(max_workers=max_workers) as executor:
-            futures = [
-                executor.submit(self._fetch_match_detail, base_url=base_url, match_id=match_id)
-                for match_id in match_ids
-            ]
-            return [future.result() for future in futures]
-
-    def _fetch_match_detail(self, *, base_url: str, match_id: str) -> dict[str, object]:
-        return self._fetch_dict_payload(
-            base_url,
-            MATCH_DETAIL_ENDPOINT,
-            {"map_id": match_id},
-            context=f"match={match_id}",
-        )
-
-    def _fetch_json(
-        self,
-        *,
-        base_url: str,
-        endpoint: str,
-        query: dict[str, object] | None = None,
-    ) -> object:
-        url = f"{base_url}{endpoint}"
-        if query:
-            url = f"{url}?{urlencode(query)}"
-
-        request = Request(
-            url,
-            headers={
-                "Accept": "application/json",
-                "User-Agent": "HLL-Vietnam-Historical-Ingestion/0.1",
-            },
-        )
-        try:
-            with urlopen(
-                request,
-                timeout=get_historical_crcon_request_timeout_seconds(),
-            ) as response:
-                return json.loads(response.read().decode("utf-8"))
-        except HTTPError as exc:
-            raise RuntimeError(f"Historical provider request failed: {url} ({exc.code})") from exc
-        except URLError as exc:
-            raise RuntimeError(f"Historical provider request failed: {url} ({exc.reason})") from exc
-
-    def _fetch_dict_payload(
-        self,
-        base_url: str,
-        endpoint: str,
-        query: dict[str, object] | None = None,
-        *,
-        context: str = "",
-        retries: int | None = None,
-    ) -> dict[str, object]:
-        resolved_retries = retries or get_historical_crcon_request_retries()
-        base_retry_delay_seconds = get_historical_crcon_retry_delay_seconds()
-        last_error: Exception | None = None
-        for attempt in range(1, resolved_retries + 1):
-            try:
-                payload = _unwrap_result(
-                    self._fetch_json(base_url=base_url, endpoint=endpoint, query=query)
-                )
-            except Exception as exc:  # pragma: no cover - network path
-                last_error = exc
-            else:
-                if isinstance(payload, dict):
-                    return payload
-                last_error = ValueError(
-                    f"Unexpected payload type for {base_url}{endpoint} {context}".strip()
-                )
-
-            if attempt < resolved_retries:
-                time.sleep(base_retry_delay_seconds * attempt)
-
-        assert last_error is not None
-        raise last_error
-
-
 @dataclass(frozen=True, slots=True)
 class A2SLiveDataSource:
     """Live provider backed by the existing A2S collector flow."""
@@ -232,7 +107,7 @@ class RconLiveDataSource:
 def get_historical_data_source() -> HistoricalDataSource:
     """Select the historical provider configured for the current environment."""
     source_kind = get_historical_data_source_kind()
-    if source_kind == HISTORICAL_SOURCE_PUBLIC_SCOREBOARD:
+    if source_kind == "public-scoreboard":
         return PublicScoreboardHistoricalDataSource()
     if source_kind == SOURCE_KIND_RCON:
         return RconHistoricalDataSource()
@@ -247,11 +122,3 @@ def get_live_data_source() -> LiveDataSource:
     if source_kind == SOURCE_KIND_RCON:
         return RconLiveDataSource()
     raise ValueError(f"Unsupported live data source: {source_kind}")
-
-
-def _unwrap_result(payload: object) -> object:
-    if not isinstance(payload, dict):
-        return payload
-    if "result" not in payload:
-        return payload
-    return payload.get("result")

backend/app/providers/public_scoreboard_provider.py

@@ -0,0 +1,139 @@
+"""Public scoreboard provider adapter for historical HLL data."""
+
+from __future__ import annotations
+
+import json
+import time
+from concurrent.futures import ThreadPoolExecutor
+from dataclasses import dataclass
+from urllib.error import HTTPError, URLError
+from urllib.parse import urlencode
+from urllib.request import Request, urlopen
+
+from ..config import (
+    get_historical_crcon_request_retries,
+    get_historical_crcon_request_timeout_seconds,
+    get_historical_crcon_retry_delay_seconds,
+)
+
+
+PUBLIC_INFO_ENDPOINT = "/api/get_public_info"
+MATCH_LIST_ENDPOINT = "/api/get_scoreboard_maps"
+MATCH_DETAIL_ENDPOINT = "/api/get_map_scoreboard"
+
+
+@dataclass(frozen=True, slots=True)
+class PublicScoreboardHistoricalDataSource:
+    """Historical provider backed by the public CRCON scoreboard JSON API."""
+
+    source_kind: str = "public-scoreboard"
+
+    def fetch_public_info(self, *, base_url: str) -> dict[str, object]:
+        return self._fetch_dict_payload(base_url, PUBLIC_INFO_ENDPOINT)
+
+    def fetch_match_page(self, *, base_url: str, page: int, limit: int) -> dict[str, object]:
+        return self._fetch_dict_payload(
+            base_url,
+            MATCH_LIST_ENDPOINT,
+            {"page": page, "limit": limit},
+            context=f"page={page}",
+        )
+
+    def fetch_match_details(
+        self,
+        *,
+        base_url: str,
+        match_ids: list[str],
+        max_workers: int,
+    ) -> list[dict[str, object]]:
+        if not match_ids:
+            return []
+        if max_workers <= 1:
+            return [
+                self._fetch_match_detail(base_url=base_url, match_id=match_id)
+                for match_id in match_ids
+            ]
+
+        with ThreadPoolExecutor(max_workers=max_workers) as executor:
+            futures = [
+                executor.submit(self._fetch_match_detail, base_url=base_url, match_id=match_id)
+                for match_id in match_ids
+            ]
+            return [future.result() for future in futures]
+
+    def _fetch_match_detail(self, *, base_url: str, match_id: str) -> dict[str, object]:
+        return self._fetch_dict_payload(
+            base_url,
+            MATCH_DETAIL_ENDPOINT,
+            {"map_id": match_id},
+            context=f"match={match_id}",
+        )
+
+    def _fetch_json(
+        self,
+        *,
+        base_url: str,
+        endpoint: str,
+        query: dict[str, object] | None = None,
+    ) -> object:
+        url = f"{base_url}{endpoint}"
+        if query:
+            url = f"{url}?{urlencode(query)}"
+
+        request = Request(
+            url,
+            headers={
+                "Accept": "application/json",
+                "User-Agent": "HLL-Vietnam-Historical-Ingestion/0.1",
+            },
+        )
+        try:
+            with urlopen(
+                request,
+                timeout=get_historical_crcon_request_timeout_seconds(),
+            ) as response:
+                return json.loads(response.read().decode("utf-8"))
+        except HTTPError as exc:
+            raise RuntimeError(f"Historical provider request failed: {url} ({exc.code})") from exc
+        except URLError as exc:
+            raise RuntimeError(f"Historical provider request failed: {url} ({exc.reason})") from exc
+
+    def _fetch_dict_payload(
+        self,
+        base_url: str,
+        endpoint: str,
+        query: dict[str, object] | None = None,
+        *,
+        context: str = "",
+        retries: int | None = None,
+    ) -> dict[str, object]:
+        resolved_retries = retries or get_historical_crcon_request_retries()
+        base_retry_delay_seconds = get_historical_crcon_retry_delay_seconds()
+        last_error: Exception | None = None
+        for attempt in range(1, resolved_retries + 1):
+            try:
+                payload = _unwrap_result(
+                    self._fetch_json(base_url=base_url, endpoint=endpoint, query=query)
+                )
+            except Exception as exc:  # pragma: no cover - network path
+                last_error = exc
+            else:
+                if isinstance(payload, dict):
+                    return payload
+                last_error = ValueError(
+                    f"Unexpected payload type for {base_url}{endpoint} {context}".strip()
+                )
+
+            if attempt < resolved_retries:
+                time.sleep(base_retry_delay_seconds * attempt)
+
+        assert last_error is not None
+        raise last_error
+
+
+def _unwrap_result(payload: object) -> object:
+    if not isinstance(payload, dict):
+        return payload
+    if "result" not in payload:
+        return payload
+    return payload.get("result")