first commit

src/gads_v2/config.py

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+from __future__ import annotations
+
+import os
+import re
+import tomllib
+from dataclasses import dataclass
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[2]
+
+
+def load_env(path: Path | None = None) -> None:
+    env_path = path or ROOT / ".env"
+    if not env_path.exists():
+        return
+    for raw in env_path.read_text(encoding="utf-8-sig").splitlines():
+        line = raw.strip()
+        if not line or line.startswith("#") or "=" not in line:
+            continue
+        key, value = line.split("=", 1)
+        os.environ.setdefault(key.strip(), value.strip().strip('"').strip("'"))
+
+
+@dataclass(frozen=True)
+class ClientConfig:
+    domain: str
+    google_ads_customer_id: str
+    adspro_client_id: str | None = None
+    rules: dict | None = None
+
+    @property
+    def safe_customer_id(self) -> str:
+        return re.sub(r"\D", "", self.google_ads_customer_id)
+
+    def effective_rules(self, global_rules: dict, section: str) -> dict:
+        rules = dict(global_rules.get(section, {}))
+        rules.update((self.rules or {}).get(section, {}))
+        return rules
+
+
+@dataclass(frozen=True)
+class AppConfig:
+    clients: dict[str, ClientConfig]
+    global_rules: dict
+
+
+def load_config(path: Path | None = None) -> AppConfig:
+    config_path = path or ROOT / "config" / "clients.toml"
+    if not config_path.exists():
+        example = ROOT / "config" / "clients.example.toml"
+        raise FileNotFoundError(
+            f"Brak {config_path}. Utworz ten plik na podstawie {example}."
+        )
+    data = tomllib.loads(config_path.read_text(encoding="utf-8"))
+    clients = {}
+    for domain, row in data.get("clients", {}).items():
+        clients[domain] = ClientConfig(
+            domain=domain,
+            google_ads_customer_id=str(row["google_ads_customer_id"]),
+            adspro_client_id=str(row.get("adspro_client_id")) if row.get("adspro_client_id") else None,
+            rules={key: value for key, value in row.items() if isinstance(value, dict)},
+        )
+    return AppConfig(clients=clients, global_rules=data.get("global_rules", {}))
+
+
+def client_dir(domain: str) -> Path:
+    path = ROOT / "clients" / domain
+    path.mkdir(parents=True, exist_ok=True)
+    return path