from grocy.request import Request
import re
from copy import deepcopy
from grocy.conf import Configuration
import logging


class Entity(object):
    RESOURCE_URL_TEMPLATE = '{domain}/api/objects/{entity}/{objectId}'
    COLLECTION_URL_TEMPLATE = '{domain}/api/objects/{entity}'
    SCHEMA_URL_TEMPLATE = '{domain}/api/openapi/specification'
    SCHEMA_MODEL_MAP = {
        'products': 'Product',
        'stock': 'StockEntry',
        'product_groups':'ProductGroup',
        'locations': 'Location',
        'quantity_units': 'QuantityUnit',
        'recipes': 'Recipe'
    }

    def __init__(self, name, **props):
        self.conf = Configuration()
        self.conf.load()
        self.name = name
        self.__dict__.update(**props)


    def get(self, id=None):
        logger = logging.getLogger('entity.get')
        if id:
            url = self.RESOURCE_URL_TEMPLATE.format(domain=self.conf.domain, entity=self.name, objectId=id)
        else:
            url = self.COLLECTION_URL_TEMPLATE.format(domain=self.conf.domain, entity=self.name)

        request = Request('get', url)
        try:
            return request.send()
        except Exception as e:
            logger.error(e)
            raise e

    def find(self, query):
        logger = logging.getLogger('entity.find')
        found_entities = []
        try:
            entities = self.get()
            for entity in entities:
                for prop, value in query.items():
                    regex = re.compile(r'{}'.format(value))
                    if regex.search(entity[prop]):
                        found_entities.append(entity)

            if len(found_entities) == 0:
                return []

            return found_entities
        except Exception as e:
            logger.error(e)
            raise e

    def create(self, entity):
        logger = logging.getLogger('entity.add')
        url = self.COLLECTION_URL_TEMPLATE.format(domain=self.conf.domain, entity=self.name)

        for key, value in entity.items():
            if type(value) == bool:
                entity[key] = '1' if value else '0'

        request = Request('post', url, resource=entity)
        try:
            return request.send()
        except Exception as e:
            logger.error(e)
            raise e

    def update(self, entity, id=None):
        if id is None:
            raise Exception('id property is required to update entity')
        logger = logging.getLogger('entity.update')
        url = self.RESOURCE_URL_TEMPLATE.format(domain=self.conf.domain, entity=self.name, objectId=id)

        request = Request('put', url, resource=entity)
        try:
            return request.send()
        except Exception as e:
            logger.error(e)
            raise e

    def delete(self, id=None):
        if id is None:
            raise Exception('id property is required to delete entity')
        logger = logging.getLogger('entity.delete')
        url = self.RESOURCE_URL_TEMPLATE.format(domain=self.conf.domain, entity=self.name, objectId=id)

        request = Request('delete', url)
        try:
            return request.send()
        except Exception as e:
            logger.error(e)
            raise e

    @property
    def schema(self):
        logger = logging.getLogger('entity.schema')
        try:
            url = self.SCHEMA_URL_TEMPLATE.format(domain=self.conf.domain)
            request = Request('get', url)
            response = request.send()
            schema_name = self.SCHEMA_MODEL_MAP[self.name]
            return response['components']['schemas'][schema_name]
        except Exception as e:
            logger.error(e)
            raise e