#!/usr/bin/env python
# -*- coding:utf-8 -*-

import json
import logging
import redis


class Config:
    local_config = None
    redis_config = None

    def __init__(self, path):
        self.path = path

    def read_local_config(self):
        try:
            f = open(self.path, encoding='utf-8')
            self.local_config = json.load(f)
            f.close()
        except Exception as e:
            logging.error("[CONFIG] read config with path: %s error: %s", self.path, e)
        return self.local_config

    def read_redis_config(self):
        if self.local_config is None:
            return None

        host = self.local_config["redis_host"]
        port = self.local_config["redis_port"]
        db = self.local_config['redis_db']
        password = self.local_config['redis_password']

        try:
            r = redis.Redis(host, port, db=db, password=password)
            config = r.get('config').decode('utf-8')
            if config is None or config is "":
                return
            self.redis_config = json.loads(config)
        except Exception as e:
            logging.error("[CONFIG] read redis config with local_config(%s) error: %s", self.local_config, e)
        return self.redis_config

    def load_remote_host_config(self):
        """
        Load host ip, port, username, password, file path of remote host.
        :return:
        """
        if self.redis_config is None:
            return None
        if not self.redis_config.__contains__('scp_host_ip'):
            return None
        if not self.redis_config.__contains__('scp_host_port'):
            return None
        if not self.redis_config.__contains__('scp_host_username'):
            return None
        if not self.redis_config.__contains__('scp_host_password'):
            return None
        if not self.redis_config.__contains__('file_upload_path'):
            return None
        if not self.redis_config.__contains__('img_upload_path'):
            return None
        return {
            'host': self.redis_config['scp_host_ip'],
            'port': self.redis_config['scp_host_port'],
            'username': self.redis_config['scp_host_username'],
            'password': self.redis_config['scp_host_password'],
            'file_path': self.redis_config['file_upload_path'],
            'img_path': self.redis_config['img_upload_path'],
        }