import {toast} from "../utils/utils";
import dayjs from "dayjs";
import Api from "./api";

const COS = require('../utils/cos-wx-sdk-v5')

const Bucket = 'college-file-1254259530';
const Region = 'ap-beijing';

class Upload {

    static async uploadRes(uploadPath = '', file) {
        let name;
        if (file.type == 'image') {
            name = dayjs().valueOf() + '.png';
        }
        if (file.type == 'video') {
            name = dayjs().valueOf() + '.mp4';
        }
        if (file.name) {
            name = file.name;
        }

        name = name || file.url.substr(file.url.lastIndexOf('/') + 1);
        return new Promise((resolve, reject) => {
            const cos = new COS({
                // 必选参数
                async getAuthorization(options, callback) {
                    const res = await Api.getCosInfo();
                    callback({
                        TmpSecretId: res.data.credentials.tmpSecretId,
                        TmpSecretKey: res.data.credentials.tmpSecretKey,
                        XCosSecurityToken: res.data.credentials.sessionToken,
                        StartTime: res.data.startTime,
                        ExpiredTime: res.data.expiredTime,
                    });
                }
            });
            cos.postObject({
                    Bucket: Bucket,
                    Region: Region,
                    Key: uploadPath + name,
                    FilePath: file.url
                }, async function (err, data) {
                    if (!err) {
                        if (data.headers.location) {
                            file.url = data.headers.location;
                        } else {
                            file.url = `https://${data.Location}`;
                        }
                        file.fileExtension = file.url.substr(file.url.lastIndexOf('.') + 1);
                        resolve()
                    } else {
                        reject(err.msg)
                        toast(err.msg)
                    }
                }
            );
        });
    }

    static async deleteRes(uploadPath = '', url) {
        return new Promise((resolve, reject) => {
            const cos = new COS({
                // 必选参数
                async getAuthorization(options, callback) {
                    const res = await Api.getCosInfo();
                    callback({
                        TmpSecretId: res.data.credentials.tmpSecretId,
                        TmpSecretKey: res.data.credentials.tmpSecretKey,
                        XCosSecurityToken: res.data.credentials.sessionToken,
                        StartTime: res.data.startTime,
                        ExpiredTime: res.data.expiredTime,
                    });
                }
            });
            const name = url.substr(url.lastIndexOf('/') + 1);

            cos.deleteObject({
                Bucket: Bucket,
                Region: Region,
                Key: uploadPath + name,
            }, function (err, data) {
                if (!err) {
                    resolve()
                } else {
                    toast(err.msg)
                }
            });
        });
    }
}


export default Upload