const log = require("./sub-log")
const { BrowserWindow, app, ipcMain } = require("electron")
const https = require('https');
const fs = require('fs');
const fse = require('fs-extra');
const BWin = BrowserWindow
const path = require("path")
const decompress = require('decompress');

function getSettings() {

    var settings = {}
    settings.canaldev = null

    if(fs.existsSync(__dirname + path.sep + "settings.json")){

        settings = JSON.parse(fs.readFileSync(__dirname + path.sep + "settings.json"))
    }

    return settings
}

module.exports.checkUpdate = () => {

    var settings = getSettings()

    log.update("Verification des mises a jour ... Processing !")

    fetch("https://git.raphix.fr/subsonics/manager/raw/branch/main/package.json").catch(err => catchError(err)).then(resp => resp.json()).then(resp => checkUpdateProcessing(resp))



    
}


function checkUpdateProcessing(serverPackage) {

    const clientPackage = require("./package")

    if(serverPackage.version.replace(".", "") > clientPackage.version.replace(".", "")) {

        log.update("Verification des mises a jour ... Finish !")
        log.update("Mise a jour disponible ! Nouvelle version : " + serverPackage.version + " - Client : " + clientPackage.version + " - Git : " + serverPackage.version)
        selfUpdate()

    } else {

        log.update("Verification des mises a jour ... Finish !")
        log.update("Cette version est la derniere version ! - Client : " + clientPackage.version + " - Git : " + serverPackage.version)
    }

}

function selfUpdate() {

    var settings = getSettings()

    const win = BWin.getFocusedWindow()
    var link = "https://git.raphix.fr/subsonics/manager/archive/main.tar.gz"


    win.loadFile("templates/update/update.html")

    ipcMain.on("close", () => {

        app.quit()
    })

    log.update("Telechargement de la mise a jour ... Processing !")

    if(fs.existsSync(__dirname + path.sep + "update.tar.gz")) {
        
        fs.rmSync(__dirname + path.sep + "update.tar.gz")
    }

    const updatePack = fs.createWriteStream(__dirname + path.sep + "update.tar.gz");
    const request = https.get(link, function(response) {
    response.pipe(updatePack);

    // after download completed close filestream
        updatePack.on("finish", () => {
            updatePack.close();
            log.update("Telechargement de la mise a jour ... Finish !")

            install(__dirname + path.sep + "update.tar.gz")

        });

        updatePack.on("error", (err) => {
            log.update("Erreur lors du telechargement de la mise a jour !")
            updatePack.close();
            console.log(err)
           

        })

        


    });
}


module.exports.update = () => {

    selfUpdate()
}

function install(filename) {

    log.update("Extraction de la mise a jour ... Processing !")
    decompress(filename, __dirname).then(files => {
        log.update("Extraction de la mise a jour ... Finish !")
        log.update("Installation de la mise a jour ... Processing !")
        fse.copy(__dirname + path.sep + "manager", __dirname, { overwrite: true }, () => {
            fs.rm(filename, () => {
                fs.rm(__dirname + path.sep + "manager", { recursive: true, force: true }, (err) => {

                    if(err) {
    
                        console.log(err)
                    }
    
                    log.update("Installation de la mise a jour ... Finish !")
                    log.update("Redemarrage de l'application.")
                    app.relaunch()
                    app.exit()
                })

            })
        })
       
    }).catch(err => catchError(err, true));
   



}

function catchError(err, inUp) {
    log.update("Erreur lors de la verification des mises a jour !")
    log.update(err)

    if(inUp == true) {
        win.webContents.send("error")

    }

}