from pathlib import Path

from pydantic import Field
from pydantic_settings import BaseSettings, SettingsConfigDict


class Settings(BaseSettings):
    """Application configuration from environment variables."""

    model_config = SettingsConfigDict(env_file=".env")

    # GCP General
    gcp_project_id: str
    gcp_location: str

    # RAG
    rag_endpoint_url: str

    # Firestore
    firestore_database_id: str = Field(..., alias="GCP_FIRESTORE_DATABASE_ID")
    firestore_host: str = Field(
        default="firestore.googleapis.com", alias="GCP_FIRESTORE_HOST",
    )
    firestore_port: int = Field(default=443, alias="GCP_FIRESTORE_PORT")
    firestore_importer_enabled: bool = Field(
        default=False, alias="GCP_FIRESTORE_IMPORTER_ENABLE",
    )

    # Redis
    redis_host: str
    redis_port: int
    redis_pwd: str | None = None

    # DLP
    dlp_template_complete_flow: str

    # Conversation Context
    conversation_context_message_limit: int = Field(
        default=60, alias="CONVERSATION_CONTEXT_MESSAGE_LIMIT",
    )
    conversation_context_days_limit: int = Field(
        default=30, alias="CONVERSATION_CONTEXT_DAYS_LIMIT",
    )

    # Logging
    log_level: str = Field(default="INFO", alias="LOGGING_LEVEL_ROOT")

    @property
    def base_path(self) -> Path:
        """Get base path for resources."""
        return Path(__file__).parent.parent / "resources"


settings = Settings.model_validate({})