# -*- coding: utf-8 -*-
import os
from typing import Union, Dict, Any

import oss2
import requests

from core.config import settings


class OSSFileUploader(object):

    def __init__(self, access_key_id: str, access_key_secret: str, bucket_name: str, root_name: str,
                 endpoint: str, domain: str):
        self.AccessKeyID = access_key_id
        self.AccessKeySecret = access_key_secret
        self.bucket_name = bucket_name
        self.root_name = root_name
        self.auth = oss2.Auth(self.AccessKeyID, self.AccessKeySecret)
        self.endpoint = endpoint
        self.bucket = oss2.Bucket(self.auth, self.endpoint, self.bucket_name)
        self.domain = domain

    def get_url(self, status_code: int, filename: str) -> str:
        return os.path.join(self.domain, filename) if status_code == 200 else ""

    def upload_from_str(self, filename: str, content: Union[bytes, str], content_type: Dict[str,
                                                                                            Any]):
        """
        通过字符串上传, byte, str
        """
        filename = os.path.join(self.root_name, filename)
        resp = self.bucket.put_object(filename, content, headers=content_type)
        return self.get_url(resp.status, filename)

    def upload_from_file(self, localfile: str, ossfile: str, content_type: Dict[str, Any]):
        """
        上传本地文件到oss
        """
        ossfile = os.path.join(self.root_name, ossfile)
        with open(localfile, "rb") as f:
            resp = self.bucket.put_object(ossfile, f, headers=content_type)
        return self.get_url(resp.status, ossfile)

    def resumable_upload_from_local(self, localfile: str, ossfile: str, content_type: Dict[str,
                                                                                           Any]):
        ossfile = os.path.join(self.root_name, ossfile)
        resp = oss2.resumable_upload(self.bucket,
                                     ossfile,
                                     localfile,
                                     headers=content_type,
                                     store=oss2.ResumableStore(root='/tmp'),
                                     multipart_threshold=100 * 1024,
                                     part_size=100 * 1024,
                                     num_threads=4)
        return self.get_url(resp.status, ossfile)

    def upload_from_url(self, fileurl: str, ossfile: str, content_type: Dict[str, Any]):
        """
        通过URL上传
        """
        ossfile = os.path.join(self.root_name, ossfile)
        resp = self.bucket.put_object(ossfile, requests.get(fileurl), headers=content_type)
        return self.get_url(resp.status, ossfile)

    def delete_file(self, filename: str):
        resp = self.bucket.delete_object(filename)
        return True if resp.status == 200 else False

    def get_preview_url(self, fileurl: str) -> str:
        filename = fileurl.replace(f"{self.domain}/", "")
        style_str = "imm/previewdoc,copy_0"
        expire = 60 * 10
        url = self.bucket.sign_url("GET", filename, expire, params={"x-oss-process": style_str})
        return url


ossfile_uploader = OSSFileUploader(
    settings.OSSINFO["AccessKeyID"],
    settings.OSSINFO["AccessKeySecret"],
    settings.OSSINFO["BucketName"],
    settings.OSSINFO["RootName"],
    settings.OSSINFO["Endpoint"],
    settings.OSSINFO["Domain"],
)

__all__ = ["ossfile_uploader"]

if __name__ == '__main__':
    myoss = OSSFileUploader(
        "LTAIbkpKrzQViemJ",
        "9y9mqNFMMDfUEBGvWqHt3wGas2W5ML",
        "scxjcclub",
        "say365",
        "http://oss-cn-beijing.aliyuncs.com",
        'http://scxjcclub.oss-cn-beijing.aliyuncs.com',
    )
    # with open("../ttt.txt", "rb") as f:
    #     url = myoss.upload_from_str("oohtest.png",
    #                                 base64.b64decode(f.read()),
    #                                 content_type={"Content-Type": "image/png"})
    # localfile = '/tmp/test.txt'
    # ossfile = 'test/test.txt'
    # url = myoss.resumable_upload_from_local(localfile, ossfile)

    # 获取预览URL
    preview_url = myoss.get_preview_url("say365/高中数学人教A版必修5导学案-1.1正弦定理.doc")
    print(preview_url)