initial commit after split

src/govoplan_mail/backend/config.py

@@ -0,0 +1,35 @@
+from __future__ import annotations
+
+from enum import StrEnum
+
+from pydantic import BaseModel, ConfigDict, Field
+
+
+class StrictModel(BaseModel):
+    model_config = ConfigDict(extra="forbid", populate_by_name=True)
+
+
+class TransportSecurity(StrEnum):
+    PLAIN = "plain"
+    TLS = "tls"
+    STARTTLS = "starttls"
+
+
+class SmtpConfig(StrictModel):
+    host: str | None = None
+    port: int | None = Field(default=None, ge=1, le=65535)
+    username: str | None = None
+    password: str | None = None
+    security: TransportSecurity = TransportSecurity.STARTTLS
+    timeout_seconds: int = Field(default=30, ge=1)
+
+
+class ImapConfig(StrictModel):
+    enabled: bool = False
+    host: str | None = None
+    port: int | None = Field(default=None, ge=1, le=65535)
+    username: str | None = None
+    password: str | None = None
+    security: TransportSecurity = TransportSecurity.TLS
+    sent_folder: str = "auto"
+    timeout_seconds: int = Field(default=30, ge=1)