# -*- coding:utf-8 -*-
# powered by Carlos
# October 23, 2019
import base64
import io
from minio import Minio
from minio.error import (ResponseError, BucketAlreadyOwnedByYou,
                         BucketAlreadyExists, NoSuchKey)
from configs.settings import config
from PIL import Image
from io import BytesIO

URL = config.get('MINIO', 'URL')
ACCESS_KEY = config.get('MINIO', 'ACCESS_KEY')
SECRET_KEY = config.get('MINIO', 'SECRET_KEY')


class FileHandler(object):

    def __init__(self, bucket_name):
        self.bucket_name = bucket_name
        self.minio_client = Minio(URL,
                                  access_key=ACCESS_KEY,
                                  secret_key=SECRET_KEY,
                                  secure=False)
        # 无脑创桶
        try:
            self.minio_client.make_bucket(self.bucket_name)
        except BucketAlreadyExists:
            pass
        except BucketAlreadyOwnedByYou:
            pass
        except ResponseError:
            # print('dssds')
            raise Exception("minio连接失败")

    # 上传图片
    def put_image(self, img_name, image):
        file_name = img_name
        file_byte = base64.b64decode(image)
        f = io.BytesIO(file_byte)
        try:
            self.minio_client.put_object(
                self.bucket_name, file_name, f, len(file_byte))
            return file_name
        except ResponseError:
            raise Exception("minio创建图片失败 文件名:%s" % file_name)

    def put_byte_file(self, file_name, file_content):
        f = io.BytesIO(file_content)
        try:
            self.minio_client.put_object(
                self.bucket_name, file_name, f, len(file_content))
            return file_name
        except ResponseError:
            raise Exception("minio创建文件失败 文件名:%s" % file_name)

    def put_np_image(self, img_name, np_image):
        file_name = img_name
        img_crop_pil = Image.fromarray(np_image)
        byte_io = BytesIO()
        img_crop_pil.save(byte_io, format="jpeg")
        jpg_buffer = byte_io.getvalue()
        byte_io = BytesIO(jpg_buffer)

        try:
            self.minio_client.put_object(
                self.bucket_name, img_name, byte_io, len(jpg_buffer))
            return file_name
        except ResponseError:
            raise Exception("minio创建图片失败 文件名:%s" % file_name)

    # 获取照片
    def get_file(self, img_name):
        file_name = img_name
        try:
            d = self.minio_client.get_object(self.bucket_name, file_name)
            return d.data
        except NoSuchKey:
            pass
        except Exception as e:
            print("Get minio pic failed:{}".format(e))
        return bytes()

    def del_file(self, file_name):
        try:
            self.minio_client.remove_object(self.bucket_name, file_name)
        except ResponseError:
            raise Exception("删除minio文件失败 文件名:%s" % file_name)

    def ls_file(self, filename):
        objects = []
        try:
            objects = self.minio_client.list_objects(self.bucket_name, prefix=filename,
                                                     recursive=True)
            return objects
        except ResponseError:
            raise Exception("列出文件失败")


minio_client = FileHandler('datax')
print('minio client started!!!')