const exec = require('child-process-promise').exec;
const fsPromises = require('fs').promises;
const path = require('path')

module.exports = function (docxFile, image) {
    return new Promise((resolve, reject) => {
        let zipName = docxFile.slice(0, -5) + '.zip'
        let filePath = path.join(__dirname + '/../public/files')
        exec('mkdir -p word/media')
            .then(function (result) {

                return Promise.all([
                    fsPromises.copyFile(path.join(__dirname + '/../public/images/resized/' + image),
                        path.join(__dirname + '/../public/files/word/media/image2.png')),

                    fsPromises.rename(path.join(__dirname + '/../public/files/' + docxFile),
                        path.join(__dirname + '/../public/files/' + zipName))

                ])

            }).then((result) => {

                return exec(`zip -d ${zipName} ./word/media/image2.png`, {
                    cwd: filePath
                })
            }).then((result) => {
                return exec(`zip -u ${zipName} ./word/media/image2.png`, {
                    cwd: filePath
                })
            }).then((result) => {

                return fsPromises.rename(path.join(__dirname + '/../public/files/' + zipName),
                    path.join(__dirname + '/../public/files/' + docxFile))
            }).then(() => {
                resolve(docxFile)
            })

            .catch(function (err) {
              
                reject({
                    eCode: 500,
                    eText: err
                })
                
            });
    })
}