"""
Configuration settings for eamco_address_checker.

This module provides configuration with environment-based switching:
- DEVELOPMENT: Uses 'eamco' database, localhost CORS origins
- PRODUCTION: Uses 'auburnoil' database, production domain CORS origins

Environment variables are loaded from .env.local or .env.prod depending
on the Docker compose file used.
"""

import logging
import os
from typing import List

from dotenv import load_dotenv

# Load environment variables from .env file if present
load_dotenv()

# =============================================================================
# ENVIRONMENT MODE
# =============================================================================

MODE = os.getenv("MODE", "LOCAL")
CURRENT_SETTINGS = os.getenv("CURRENT_SETTINGS", "DEVELOPMENT")

# Log configuration mode (logger setup happens after config is loaded)
_config_mode_msg = f"Using {'PRODUCTION' if CURRENT_SETTINGS == 'PRODUCTION' else 'DEVELOPMENT'} configuration"

# =============================================================================
# DATABASE CONFIGURATION
# =============================================================================

# Database connection components (can be overridden individually)
POSTGRES_USERNAME = os.getenv("POSTGRES_USERNAME", "postgres")
POSTGRES_PW = os.getenv("POSTGRES_PW", "password")
POSTGRES_SERVER = os.getenv("POSTGRES_SERVER", "192.168.1.204")
POSTGRES_PORT = os.getenv("POSTGRES_PORT", "5432")

# Database name differs by environment
if CURRENT_SETTINGS == "PRODUCTION":
    POSTGRES_DBNAME = os.getenv("POSTGRES_DBNAME", "auburnoil")
else:
    POSTGRES_DBNAME = os.getenv("POSTGRES_DBNAME", "eamco")

# Build connection URI from components (fallback)
_DEFAULT_DATABASE_URI = "postgresql+psycopg2://{}:{}@{}:{}/{}".format(
    POSTGRES_USERNAME,
    POSTGRES_PW,
    POSTGRES_SERVER,
    POSTGRES_PORT,
    POSTGRES_DBNAME
)

# Allow full DATABASE_URL override
DATABASE_URL: str = os.getenv("DATABASE_URL", _DEFAULT_DATABASE_URI)

# SQLAlchemy binds (for compatibility)
SQLALCHEMY_DATABASE_URI = DATABASE_URL
SQLALCHEMY_BINDS = {POSTGRES_DBNAME: SQLALCHEMY_DATABASE_URI}

# =============================================================================
# CORS CONFIGURATION
# =============================================================================

# Parse CORS origins from environment (comma-separated) or use defaults
_cors_env = os.getenv("CORS_ORIGINS", "")

if _cors_env:
    CORS_ORIGINS: List[str] = [origin.strip() for origin in _cors_env.split(",")]
elif CURRENT_SETTINGS == "PRODUCTION":
    # Production CORS origins
    CORS_ORIGINS = [
        "https://oil.edwineames.com",
        "https://edwineames.com",
    ]
else:
    # Development CORS origins
    CORS_ORIGINS = [
        "http://localhost:9000",
        "https://localhost:9513",
        "http://localhost:9514",
        "http://localhost:9512",
        "http://localhost:9511",
        "http://localhost:5173",  # Frontend port
        "http://localhost:9616",  # Authorize service port
    ]

# =============================================================================
# BATCH PROCESSING CONFIGURATION
# =============================================================================

# Maximum records to process in a single batch run
BATCH_SIZE: int = int(os.getenv("BATCH_SIZE", "150"))

# Records to process before committing to database
COMMIT_BATCH_SIZE: int = int(os.getenv("COMMIT_BATCH_SIZE", "20"))

# =============================================================================
# GEOCODING CONFIGURATION (Nominatim)
# =============================================================================

# User agent for Nominatim API (required - identifies your application)
NOMINATIM_USER_AGENT: str = "Unraid-EamcoAddressChecker/1.0 (eeames214@gmail.com)"

# Rate limiting: Sleep range between requests (Nominatim requires 1 req/sec max)
MIN_SLEEP_SECONDS: float = float(os.getenv("MIN_SLEEP", "1.2"))
MAX_SLEEP_SECONDS: float = float(os.getenv("MAX_SLEEP", "1.8"))

# Geocoding timeout in seconds
GEOCODE_TIMEOUT: int = int(os.getenv("GEOCODE_TIMEOUT", "10"))

# =============================================================================
# STATE MAPPING
# =============================================================================

# Integer -> US State Abbreviation mapping
# Replace with proper states table lookup when available
STATE_MAPPING: dict[int, str] = {
    1: "AL",   # Alabama
    2: "AK",   # Alaska
    3: "AS",   # American Samoa
    4: "AZ",   # Arizona
    5: "AR",   # Arkansas
    6: "CA",   # California
    7: "CO",   # Colorado
    8: "CT",   # Connecticut
    9: "DE",   # Delaware
    10: "DC",  # District of Columbia
    11: "FL",  # Florida
    12: "GA",  # Georgia
    13: "GU",  # Guam
    14: "HI",  # Hawaii
    15: "ID",  # Idaho
    16: "IL",  # Illinois
    17: "IN",  # Indiana
    18: "IA",  # Iowa
    19: "KS",  # Kansas
    20: "KY",  # Kentucky
    21: "LA",  # Louisiana
    22: "ME",  # Maine
    23: "MD",  # Maryland
    24: "MA",  # Massachusetts
    25: "MI",  # Michigan
    26: "MN",  # Minnesota
    27: "MS",  # Mississippi
    28: "MO",  # Missouri
    29: "MT",  # Montana
    30: "NE",  # Nebraska
    31: "NV",  # Nevada
    32: "NH",  # New Hampshire
    33: "NJ",  # New Jersey
    34: "NM",  # New Mexico
    35: "NY",  # New York
    36: "NC",  # North Carolina
    37: "ND",  # North Dakota
    38: "OH",  # Ohio
    39: "OK",  # Oklahoma
    40: "OR",  # Oregon
    41: "PA",  # Pennsylvania
    42: "PR",  # Puerto Rico
    43: "RI",  # Rhode Island
    44: "SC",  # South Carolina
    45: "SD",  # South Dakota
    46: "TN",  # Tennessee
    47: "TX",  # Texas
    48: "UT",  # Utah
    49: "VT",  # Vermont
    50: "VA",  # Virginia
    51: "VI",  # Virgin Islands
    52: "WA",  # Washington
    53: "WV",  # West Virginia
    54: "WI",  # Wisconsin
    55: "WY",  # Wyoming
}

# =============================================================================
# LOGGING CONFIGURATION
# =============================================================================

LOG_LEVEL: str = os.getenv("LOG_LEVEL", "INFO")
LOG_FORMAT: str = "%(asctime)s - %(name)s - %(levelname)s - %(message)s"