import os
basedir = os.path.abspath(os.path.dirname(__file__))

class Config:
    SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'alien.db')
    SQLALCHEMY_MIGRATE_REPO = os.path.join(basedir, 'db_repository')

    CSRF_ENABLED = True
    SECRET_KEY = 'you-will-never-guess'
    BLOG_ADMIN = 'wulien88@gmail.com'
    FLASKY_COMMENTS_PER_PAGE = 3
    SEARCH_POSTS_PER_PAGE = 5


    @staticmethod
    def init_app(app):
        pass


class DevelopmentConfig(Config):
    DEBUG = True
    # SQLALCHEMY_DATABASE_URI = os.environ.get('DEV_DATABASE_URL') or \
    #     'sqlite:///' + os.path.join(basedir, 'data-dev.sqlite')


class TestingConfig(Config):
    TESTING = True
    SQLALCHEMY_DATABASE_URI = os.environ.get('TEST_DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, 'data-test.sqlite')
    WTF_CSRF_ENABLED = False


class ProductionConfig(Config):
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or \
        'sqlite:///' + os.path.join(basedir, 'data.sqlite')


config = {
    'development': DevelopmentConfig,
    'testing': TestingConfig,
    'production': ProductionConfig,
    'default': DevelopmentConfig,
    'UPLOAD_FOLDER': '/static/upload/image/'
}