"""
PunimTag Configuration Settings

Centralized configuration for the PunimTag application.
"""

import os
from pathlib import Path

# Base directory (project root)
BASE_DIR = Path(__file__).parent.parent

# Data directory
DATA_DIR = BASE_DIR / "data"
PHOTOS_DIR = BASE_DIR / "photos"

# Database paths
DATABASE_PATH = DATA_DIR / "punimtag_simple.db"
TEST_DATABASE_PATH = DATA_DIR / "test_backend.db"

# Ensure directories exist
DATA_DIR.mkdir(exist_ok=True)
PHOTOS_DIR.mkdir(exist_ok=True)

# Flask configuration
class Config:
    """Base configuration class."""
    SECRET_KEY = os.environ.get('SECRET_KEY') or 'dev-secret-key-change-in-production'
    DATABASE_PATH = str(DATABASE_PATH)
    PHOTOS_DIR = str(PHOTOS_DIR)
    MAX_CONTENT_LENGTH = 16 * 1024 * 1024  # 16MB max file size
    UPLOAD_EXTENSIONS = {'.jpg', '.jpeg', '.png', '.gif', '.bmp'}
    
    # Face recognition settings
    FACE_DETECTION_CONFIDENCE = 0.6
    FACE_SIMILARITY_THRESHOLD = 0.6
    MAX_FACES_PER_IMAGE = 10
    
    # Thumbnail settings
    THUMBNAIL_SIZE = (200, 200)
    FACE_THUMBNAIL_SIZE = (120, 120)

class DevelopmentConfig(Config):
    """Development configuration."""
    DEBUG = True
    TESTING = False

class ProductionConfig(Config):
    """Production configuration."""
    DEBUG = False
    TESTING = False

class TestingConfig(Config):
    """Testing configuration."""
    DEBUG = True
    TESTING = True
    DATABASE_PATH = str(TEST_DATABASE_PATH)

# Configuration mapping
config = {
    'development': DevelopmentConfig,
    'production': ProductionConfig,
    'testing': TestingConfig,
    'default': DevelopmentConfig
}