"""Static Store data."""

import csv

import pkg_resources


CURRENT_CSV_FILE = pkg_resources.resource_filename(
    'abacus_common_data', 'data/csv/stores.csv')


class Store:
    """Store class. Datasource: snowflake's DIM_STORE."""

    store_map = {}

    def __init__(self, store_id):
        """Find Store by id. Raises KeyError on unknown id."""
        Store._load_csv_data()
        self.store = Store._get_data(store_id)

    @staticmethod
    def parse_csv(file_path):
        """Build a keyed dict of Store data."""
        store_map = {}
        with open(CURRENT_CSV_FILE, encoding='utf8') as csv_file:
            csv_reader = csv.reader(csv_file)
            next(csv_reader, None)
            for row in csv_reader:
                store_id = int(row[0])
                store_name = row[1]
                store_map[store_id] = {
                    'store_id': store_id,
                    'store_name': store_name
                }
        return store_map

    @classmethod
    def _get_data(cls, store_id):
        """Force a key error if not found."""
        return cls.store_map[store_id]

    @classmethod
    def _load_csv_data(cls):
        """Initialize the class, loading data in from CSV file."""
        if cls.store_map:
            return
        cls.store_map = Store.parse_csv(CURRENT_CSV_FILE)

    @property
    def store_id(self):
        """Store id."""
        return self.store.get('store_id')

    @property
    def store_name(self):
        """Store name."""
        return self.store.get('store_name')

    @classmethod
    def list_all_stores(cls):
        """Return an array of all Stores."""
        Store._load_csv_data()
        list_of_types = []
        for _, store in cls.store_map.items():
            list_of_types.append(store)
        return list_of_types