"""Unified path configuration for PHANTOM project
All hardcoded paths should reference this module
Paths can be overridden via environment variables
"""
import os
from pathlib import Path

# project root (directory containing lib/, experiments/, sim/, web/, backend/)
PROJECT_ROOT = Path(__file__).parent.parent.resolve()

# data directories
DATA_DIR = Path(os.getenv('PHANTOM_DATA_DIR', PROJECT_ROOT / 'data'))
EXPERIMENTS_DIR = Path(os.getenv('PHANTOM_EXPERIMENTS_DIR', PROJECT_ROOT / 'experiments'))

# agent/human interaction data
AGENT_DATA_DIR = Path(os.getenv('PHANTOM_AGENT_DATA_DIR', DATA_DIR / 'agents'))
HUMAN_DATA_DIR = Path(os.getenv('PHANTOM_HUMAN_DATA_DIR', DATA_DIR / 'humans'))

# RL simulation runs
SIM_RUNS_DIR = Path(os.getenv('PHANTOM_SIM_RUNS_DIR', PROJECT_ROOT / 'sim' / 'rl' / 'runs'))

# model artifacts
MODEL_REGISTRY_DIR = Path(os.getenv('PHANTOM_MODEL_REGISTRY_DIR', DATA_DIR / 'models'))

# collected experiment data
COLLECTED_DATA_DIR = Path(os.getenv('PHANTOM_COLLECTED_DATA_DIR', EXPERIMENTS_DIR / 'agents' / 'collected_data'))

# notebook outputs
NOTEBOOK_OUTPUT_DIR = Path(os.getenv('PHANTOM_NOTEBOOK_OUTPUT_DIR', EXPERIMENTS_DIR / 'notebooks' / 'outputs'))


def ensure_dir(path: Path) -> Path:
    """ensure directory exists, create if needed"""
    path.mkdir(parents=True, exist_ok=True)
    return path


def get_data_path(*parts: str) -> Path:
    """construct path relative to DATA_DIR"""
    return DATA_DIR.joinpath(*parts)


def get_experiments_path(*parts: str) -> Path:
    """construct path relative to EXPERIMENTS_DIR"""
    return EXPERIMENTS_DIR.joinpath(*parts)


def get_sim_path(*parts: str) -> Path:
    """construct path relative to SIM_RUNS_DIR"""
    return SIM_RUNS_DIR.joinpath(*parts)


# service configuration (from .env)
KAFKA_HOST = os.getenv('KAFKA_HOST', 'localhost')
KAFKA_PORT = os.getenv('KAFKA_PORT', '9092')
KAFKA_BROKER = f"{KAFKA_HOST}:{KAFKA_PORT}"

REDIS_HOST = os.getenv('REDIS_HOST', 'localhost')
REDIS_PORT = int(os.getenv('REDIS_PORT', '6379'))

SUPABASE_URL = os.getenv('NEXT_PUBLIC_SUPABASE_URL', '')
SUPABASE_ANON_KEY = os.getenv('NEXT_PUBLIC_SUPABASE_ANON_KEY', '')

BACKEND_PORT = int(os.getenv('BACKEND_PORT', '5000'))
PROVIDER_PORT = int(os.getenv('PROVIDER_PORT', '5001'))