# src/constants.py
"""Application-wide constants and configuration values."""
import os

APP_VERSION = "0.9.1"

# Base paths
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) + "/"
STATIC_DIR = os.path.join(BASE_DIR, "static")
DATA_DIR = os.path.join(BASE_DIR, "data")

# Data file paths
SESSIONS_FILE = os.path.join(DATA_DIR, "sessions.json")
MEMORY_FILE = os.path.join(DATA_DIR, "memory.json")
MEMORY_DOC = os.path.join(DATA_DIR, "memory_doc.md")
PERSONAL_DIR = os.path.join(DATA_DIR, "personal_docs")
RUNBOOK_DIR = os.path.join(PERSONAL_DIR, "runbook")
UPLOAD_DIR = os.path.join(DATA_DIR, "uploads")
FEATURES_FILE = os.path.join(DATA_DIR, "features.json")
SETTINGS_FILE = os.path.join(DATA_DIR, "settings.json")

# API Configuration
MAX_CONTEXT_MESSAGES = 90
REQUEST_TIMEOUT = 20
OPENAI_COMPAT_PATH = "/v1/chat/completions"

# Environment variables with defaults
DEFAULT_HOST = os.getenv("LLM_HOST", "localhost")
LLM_HOSTS = [h.strip() for h in os.getenv("LLM_HOSTS", "").split(",") if h.strip()]
OPENAI_API_KEY = os.getenv("OPENAI_API_KEY")
SEARXNG_INSTANCE = os.getenv('SEARXNG_INSTANCE', 'http://localhost:8080')


# Cleanup configuration
CLEANUP_ENABLED = os.getenv("CLEANUP_ENABLED", "True").lower() == "true"
CLEANUP_INTERVAL_HOURS = int(os.getenv("CLEANUP_INTERVAL_HOURS", "24"))

# Default parameters
DEFAULT_TEMPERATURE = 1.0
DEFAULT_MAX_TOKENS = 0


def internal_api_base() -> str:
    """Base URL for in-process loopback calls to Odysseus's own API.

    Agent tools and background jobs reach admin-gated routes by calling the
    running server over HTTP. Resolution order:
      1. ODYSSEUS_INTERNAL_BASE  - explicit override (e.g. behind a TLS proxy).
      2. APP_PORT                - http://127.0.0.1:$APP_PORT (docker-compose).
      3. Fallback http://127.0.0.1:7000 - legacy default.

    127.0.0.1 (not "localhost") avoids IPv6/DNS ambiguity for a strictly-local
    call. Without this, loopback tools fail with "All connection attempts
    failed" whenever the server is not on port 7000.
    """
    override = os.environ.get("ODYSSEUS_INTERNAL_BASE")
    if override:
        return override.rstrip("/")
    return f"http://127.0.0.1:{os.environ.get('APP_PORT', '7000')}"