from fastapi import FastAPI
from dotenv import load_dotenv
from pathlib import Path
from datetime import datetime
from dateutil import tz

from signing_service.application.settings.container import get_settings
from signing_service.application.settings.setup_logger import create_logger
from signing_service.api.routes.sign_document import router as sign_router
from signing_service.application.settings.version import get_package_version    

load_dotenv()

# 👇 FAIL FAST: load settings at startup
settings = get_settings()
version = get_package_version()
local_tz = tz.gettz(settings.local_tz)

state_path = Path(settings.state_path)

# Logging
log_dir = state_path / "logs"
log_dir.mkdir(parents=True, exist_ok=True)
logger = create_logger(
    name="factuges-document-signing-service",
    log_path=log_dir / "factuges-document-signing-service.log",  # Solo lo genera en producción

)

logger.info("")
logger.info("============================================================")
logger.info("FactuGES Document Signing Service - START ")
logger.info("Version: %s", version)
logger.info("UTC Now: %s", datetime.utcnow().isoformat())
logger.info("Environment: %s", settings.app_env)
logger.info("")
logger.info("Log Level: %s", settings.log_level)
logger.info("Log: %s", log_dir / "factuges-document-signing-service.log")
logger.info("")
logger.info("Secret Provider: %s", settings.secret_provider)
logger.info("Infisical project ID: %s", settings.infisical_project_id)
logger.info("Infisical environment: %s", settings.infisical_env_slug)
logger.info("")

app = FastAPI(title="FactuGES Document Signing Service")
app.add_event_handler("startup", lambda: logger.info("Application startup complete"))
app.add_event_handler("shutdown", lambda: logger.info("Application shutdown complete"))
app.add_exception_handler(Exception, lambda request, exc: logger.error(f"Unhandled exception: {exc}"))


# Register routers
app.include_router(sign_router)
logger.info("API routes registered from sign_document router")

app.add_api_route("/health", lambda: {"status": "ok"}, methods=["GET"])
logger.info("Health check endpoint registered at /health")