export const downloadFile = (url, data) => {
    return axios({
        url,
        method:'POST',
        data,
        responseType: 'blob',
        headers: {
            'X-Token': localStorage.getItem('token') || '',
        },
    })
        .then(res => {
            console.log(res)
            const str = res.headers['content-disposition']
            if (!res || !str) {
                error(res.message || '下载失败！')
                return
            }
            if (res && res.status === 200 && res.data) {
                const { data, headers } = res
                // // 切割出文件名
                // const fileNameEncode = res.headers['content-disposition'].split('filename=')[1]
                // // 解码
                // const fileName = decodeURIComponent(fileNameEncode)
                // console.log('fileName', fileName)
                let fileName
                if (headers['content-disposition']) {
                    fileName = headers['content-disposition'].replace(/\w+;filename=(.*)/, '$1')
                } else {
                    fileName = data.fileName
                }
                // 此处当返回json文件时需要先对data进行JSON.stringify处理，其他类型文件不用做处理
                const blob = new Blob([data], { type: headers['content-type'] })
                const dom = document.createElement('a')
                const downUrl = window.URL.createObjectURL(blob)
                dom.href = downUrl
                dom.download = decodeURIComponent(fileName)
                dom.style.display = 'none'
                document.body.appendChild(dom)
                dom.click()
                dom.parentNode.removeChild(dom)
                window.URL.revokeObjectURL(url)
            } else {
                error(res.message || '下载失败！')
            }
        })
        .catch(err => {
            error(err || '下载失败！')
        })
}

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