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

import os

from ..api.base import BaseWeChatAPI
from ...type import RequestType
from ...utils import sha256


class Media(BaseWeChatAPI):
    def _media_upload(self, content, filepath, filename, path):
        if not content:
            if not (filepath and os.path.exists(filepath) and os.path.isfile(filepath) and path):
                raise Exception('filepath is not assigned or not exists')
            with open(filepath, mode = 'rb') as f:
                content = f.read()
            if not filename:
                filename = os.path.basename(filepath)
        else:
            if not filename:
                raise Exception('filename is not assigned or not exists')

        data = {
            'meta': '{"filename":"%s","sha256":"%s"}' % (filename, sha256(content))
        }

        mimes = {
            '.bmp': 'image/bmp',
            '.jpg': 'image/jpeg',
            '.jpeg': 'image/jpeg',
            '.png': 'image/png',
            '.avi': 'video/x-msvideo',
            '.wmv': 'video/x-ms-wmv',
            '.mpeg': 'video/mpeg',
            '.mp4': 'video/mp4',
            '.mov': 'video/quicktime',
            '.mkv': 'video/x-matroska',
            '.flv': 'video/x-flv',
            '.f4v': 'video/x-f4v',
            '.m4v': 'video/x-m4v',
            '.rmvb': 'application/vnd.rn-realmedia-vbr'
        }
        media_type = os.path.splitext(filename)[-1]
        if media_type not in mimes:
            raise Exception('wechatpayv3 does not support this media type.')

        files = [('file', (filename, content, mimes[media_type]))]
        return self.client.core.request(
            path, method = RequestType.POST, data = data, sign_data = data.get('meta'), files = files)

    def image_upload(self, content = None, filepath = None, filename = None):
        """图片上传
        :param filepath: 图片文件路径
        :param filename: 文件名称，未指定则从filepath参数中截取
        """
        return self._media_upload(content, filepath, filename, '/v3/merchant/media/upload')

    def video_upload(self, content = None, filepath = None, filename = None):
        """视频上传
        :param filepath: 视频文件路径
        :param filename: 文件名称，未指定则从filepath参数中截取
        """
        return self._media_upload(content, filepath, filename, '/v3/merchant/media/video_upload')