execUtils.js

const cp = require('child_process')
const { dialog, app } = require('electron')
const { sendToMainWindow } = require("./windows")
const status = require("./status")
const { i18n } = require('./i18n')
const path = require("path");

let task = null
const binPath = app.isPackaged ? path.join(process.resourcesPath, "./framework/bin/") : path.join(__dirname, "../framework/bin/")

function exec(msg, cmd, args, processHandler, finishHandler) {
    return new Promise((resolve, reject) => {
        if (status.currentDevice === null || (!status.isDeviceConnected && cmd !== "nfc-list")) {
            printStatus(i18n("indicator_error"), "error")
            dialog.showErrorBox(i18n("dialog_title_error"), i18n("dialog_msg_not_connected_device"))
            reject(new Error(i18n("dialog_msg_not_connected_device")))
            return
        }
        if (status.isRunningTask) {
            dialog.showErrorBox(i18n("dialog_title_device_busy"), i18n("dialog_msg_running_task"))
            reject(new Error(i18n("dialog_msg_running_task")))
            return
        }
        status.isRunningTask = true
        printLog(`\n\n### ${msg}\n`)
        task = cp.spawn(`${binPath}${cmd}`, args)

        task.stdout.on('data', (data) => {
            printLog(data.toString());
            if (processHandler) processHandler(data.toString())
        });

        task.stderr.on('data', (data) => {
            printLog(`\n${data.toString()}`)
            if (processHandler) processHandler(data.toString())
        });

        task.on('close', (code, signal) => {
            if (finishHandler) finishHandler(code, signal)

            status.isRunningTask = false
            if (code !== 0) {
                if (signal) printExitLog(2)
                else {
                    const message = `\nexit code: ${code}`
                    printLog(message)
                    printExitLog(1)
                    reject(new Error(message))
                }
            } else {
                resolve()
            }
        })
    })
}


function killProcess() {
    try { task.kill() } catch (e) {}
    status.isRunningTask = false
}

function printLog(msg) {
    sendToMainWindow("update-log-output", msg)
}

function printStatus(msg, indicator="running") {
    sendToMainWindow("update-status", {"text": msg, "indicator": indicator})
}

function printExitLog(code) {
    switch (code) {
        case 0:
            printStatus(i18n("indicator_free"), "free")
            printLog(`\n${i18n("log_msg_finished")}`)
            break
        case 1:
            printStatus(i18n("indicator_error"), "error")
            printLog(`\n${i18n("log_msg_error")}`)
            break
        case 2:
            printStatus(i18n("indicator_free"), "free")
            printLog(`\n${i18n("log_msg_finished")}`)
            break
    }
}

module.exports = {exec, killProcess, printExitLog, printLog, printStatus}