Severl changes

- disabled neutralino window hot reloading
- fixed `Game.current` version gathering from the game files
- fixed `Patch.getPatchInfo()` method working, so now this function and
  the `Patch.current` field will return correct information whether
  the patch was applied or not
- `Patch.install()` method now can return null if the patch state is "preparation"
- added `Voice.selected` field that will represent the `lang.voice` config
- fixed `Voice.getDiff()` method errors
- improved `Archive`'s stream unpacked files listing
- made `Prefix` class, some `Runners` methods from the previous update were moved there
- fixed `ProgressBar.init()` method work which also fixes ETA calculation
- added bunch of new launcher states and events for them
- added `State.update()` method to automatically update launcher's state
- `Process` object now can get the output of the process that was started
  by the `Process.run()` method and can be accesed
  by the `output` event
- also was removed `input` field for the `Process.run()` method options

package.json

@@ -5,7 +5,7 @@
   "type": "module",
   "scripts": {
     "neu": "neu",
-    "dev": "vite build && neu run",
+    "dev": "vite build && neu run --disable-auto-reload",
     "build": "vite build && neu build --release",
     "check": "svelte-check --tsconfig ./tsconfig.json"
   },

public/locales/en-us.yaml

@@ -46,7 +46,7 @@ settings:
       
       gamemode: GameMode
       fps_unlocker: Unlock FPS
-      purge_dxvk_logs: Auto-delete DXVK logs
+      purge_dxvk_logs: Delete DXVK logs
 
   # DXVKs
   dxvks:

public/locales/ru-ru.yaml

@@ -47,7 +47,7 @@ settings:
       # TODO: add hints to the components so I could describe what these options means
       gamemode: GameMode
       fps_unlocker: Разблокировать FPS
-      purge_dxvk_logs: Автоматически удалять логи DXVK
+      purge_dxvk_logs: Удалять логи DXVK
 
   # DXVKs
   dxvks:

src/ts/Game.ts

@@ -35,9 +35,10 @@ export default class Game
             Neutralino.filesystem.readFile(persistentPath)
                 .then((version) => resolve(version))
                 .catch(() => {
-                    Neutralino.filesystem.readFile(globalGameManagersPath)
+                    Neutralino.filesystem.readBinaryFile(globalGameManagersPath)
-                        .then((config) => {
+                        .then((config: ArrayBuffer) => {
-                            const version = /([1-9]+\.[0-9]+\.[0-9]+)_[\d]+_[\d]+/.exec(config);
+                            const buffer = new TextDecoder('ascii').decode(new Uint8Array(config));
+                            const version = /([1-9]+\.[0-9]+\.[0-9]+)_[\d]+_[\d]+/.exec(buffer);
 
                             resolve(version !== null ? version[1] : null);
                         })

src/ts/Launcher.ts

@@ -17,32 +17,8 @@ export default class Launcher
     public constructor(onMount)
     {
         onMount(() => {
-            this.state = new State(this);
             this.progressBar = new ProgressBar(this);
-
+            this.state = new State(this);
-            // Progress bar test
-            /*this.progressBar.init({
-                label: 'Abobus',
-                showSpeed: true,
-                showEta: true,
-                showPercents: true,
-                showTotals: true,
-
-                finish: () => this.progressBar!.hide()
-            });
-
-            this.progressBar.show();
-
-            const t = (curr) => {
-                if (curr <= 3000)
-                {
-                    this.progressBar!.update(curr, 3000, 1);
-
-                    setTimeout(() => t(curr + 1), 10);
-                }
-            };
-
-            t(0);*/
         });
     }
 
@@ -65,7 +41,8 @@ export default class Launcher
 
                 if (window.status)
                 {
-                    this.settingsMenu = new Process(window.data!.pid, null);
+                    this.settingsMenu = new Process(window.data!.pid);
+                    this.settingsMenu.runningInterval = null;
 
                     /*this.settingsMenu.finish(() => {
                         Window.current.show();

src/ts/Patch.ts

@@ -241,9 +241,19 @@ export default class Patch
                                                 // compare it with actual UnityPlayer.dll hash and say whether the patch
                                                 // was applied or not
                                                 if (originalPlayer !== null)
-                                                    patchInfo.applied = md5(`${constants.paths.gameDir}/UnityPlayer.dll`) != originalPlayer[1];
+                                                {
+                                                    constants.paths.gameDir.then((gameDir) => {
+                                                        Neutralino.filesystem.readBinaryFile(`${gameDir}/UnityPlayer.dll`)
+                                                            .then((currPlayer: ArrayBuffer) => {
+                                                                patchInfo.applied = md5(currPlayer) != originalPlayer[1];
 
-                                                resolve(patchInfo);
+                                                                resolve(patchInfo);
+                                                            })
+                                                            .catch(() => resolve(patchInfo));
+                                                    });
+                                                }
+
+                                                else resolve(patchInfo);
                                             }
                                         });
                                 }
@@ -255,12 +265,20 @@ export default class Patch
 
     /**
      * Get patch installation stream
+     * 
+     * @returns null if the latest available patch in preparation state
+     * @returns rejects Error object if the patch's repositories are unreachable or they responded with an error
      */
-    public static install(): Promise<Stream>
+    public static install(): Promise<Stream|null>
     {
         return new Promise((resolve, reject) => {
             this.latest
-                .then((patch) => resolve(new Stream(constants.getPatchUri(patch.source ?? 'origin'), patch.version)))
+                .then((patch) => {
+                    if (patch.state === 'preparation')
+                        resolve(null);
+                    
+                    else resolve(new Stream(constants.getPatchUri(patch.source ?? 'origin'), patch.version));
+                })
                 .catch((err) => reject(err));
         });
     }

src/ts/Voice.ts

@@ -1,9 +1,10 @@
 import type { VoicePack } from './types/GameData';
-import type { InstalledVoice } from './types/Voice';
+import type { InstalledVoice, VoiceLang } from './types/Voice';
 
 import constants from './Constants';
 import Game from './Game';
 import AbstractInstaller from './core/AbstractInstaller';
+import Configs from './Configs';
 
 declare const Neutralino;
 
@@ -60,6 +61,14 @@ export default class Voice
         });
     }
 
+    /**
+     * Get currently selected voice package language accotring to the config file
+     */
+    public static get selected(): Promise<VoiceLang>
+    {
+        return Configs.get('lang.voice') as Promise<VoiceLang>;
+    }
+
     /**
      * Get latest voice data info
      * 
@@ -84,7 +93,7 @@ export default class Voice
     {
         return new Promise((resolve, reject) => {
             Game.getDiff(version)
-                .then((data) => resolve(data!.voice_packs ?? null))
+                .then((data) => resolve(data?.voice_packs ?? null))
                 .catch((error) => reject(error));
         });
     }

src/ts/core/Archive.ts

@@ -5,6 +5,8 @@ import type {
     ArchiveInfo
 } from '../types/Archive';
 
+import promisify from './promisify';
+
 declare const Neutralino;
 declare const NL_CWD;
 
@@ -83,21 +85,34 @@ class Stream
 
                 const updateProgress = async () => {
                     let difference: number = 0;
+                    let pool: any[] = [];
 
                     remainedFiles.forEach((file) => {
                         if (file.path != '#unpacked#')
                         {
-                            Neutralino.filesystem.getStats(`${baseDir}/${file.path}`)
+                            pool.push((): Promise<void> => {
-                                .then(() => {
+                                return new Promise((resolve) => {
-                                    this.unpacked += file.size.uncompressed!;
+                                    Neutralino.filesystem.getStats(`${baseDir}/${file.path}`)
-                                    difference += file.size.uncompressed!;
+                                        .then(() => {
+                                            this.unpacked += file.size.uncompressed!;
+                                            difference += file.size.uncompressed!;
 
-                                    file.path = '#unpacked#';
+                                            file.path = '#unpacked#';
-                                })
+
-                                .catch(() => {});
+                                            resolve();
+                                        })
+                                        .catch(() => resolve())
+                                });
+                            });
                         }
                     });
 
+                    await promisify({
+                        callbacks: pool,
+                        callAtOnce: true,
+                        interval: 200
+                    });
+
                     remainedFiles = remainedFiles.filter((file) => file.path != '#unpacked#');
 
                     if (this.onProgress)

src/ts/core/Prefix.ts

@@ -0,0 +1,125 @@
+import constants from '../Constants';
+import Process from '../neutralino/Process';
+import Downloader from './Downloader';
+import Runners from './Runners';
+
+declare const Neutralino;
+
+export default class Prefix
+{
+    /**
+     * Check if the wine prefix is created in the specified path
+     */
+    public static exists(path: string|null = null): Promise<boolean>
+    {
+        return new Promise(async (resolve) => {
+            path ??= await constants.paths.prefix.current;
+
+            Neutralino.filesystem.getStats(`${path}/drive_c`)
+                .then(() => resolve(true))
+                .catch(() => resolve(false));
+        });
+    }
+
+    /**
+     * Get path to the winetricks.sh file
+     * 
+     * If this file is not downloaded - then this method will download it
+     * and return the path after it
+     */
+    public static getWinetricks(): Promise<string>
+    {
+        return new Promise(async (resolve) => {
+            const winetricksPath = `${await constants.paths.launcherDir}/winetricks.sh`;
+
+            Neutralino.filesystem.getStats(winetricksPath)
+                .then(() => resolve(winetricksPath))
+                .catch(() => {
+                    Downloader.download(constants.uri.winetricks, winetricksPath).then((stream) => {
+                        stream.finish(() => resolve(winetricksPath));
+                    });
+                });
+        });
+    }
+
+    /**
+     * Create wine prefix using the current selected wine
+     * 
+     * @param path folder to create prefix in
+     * @param progress function that will be called with every creation step
+     * 
+     * @returns false if there's no selected wine version. Otherwise true
+     */
+    public static create(path: string, progress?: (output: string, current: number, total: number) => void): Promise<boolean>
+    {
+        const installationSteps = [
+            // corefonts
+            'Executing w_do_call corefonts',
+            'Executing load_corefonts',
+            'Executing load_andale',
+            'Executing load_arial',
+            'Executing load_comicsans',
+            'Executing load_courier',
+            'Executing load_georgia',
+            'Executing load_impact',
+            'Executing load_times',
+            'Executing load_trebuchet',
+            'Executing load_verdana',
+            'Executing load_webdings',
+
+            // usetakefocus=n (fullscreen input issues fix)
+            'Executing load_usetakefocus n'
+        ];
+
+        return new Promise((resolve) => {
+            Runners.current.then((runner) => {
+                if (runner === null)
+                    resolve(false);
+    
+                else
+                {
+                    this.getWinetricks().then(async (winetricks) => {
+                        let installationProgress = 0;
+
+                        const process = await Process.run(`bash '${Process.addSlashes(winetricks)}' corefonts usetakefocus=n`, {
+                            env: {
+                                WINE: `${await constants.paths.runnersDir}/${runner.name}/${runner.files.wine}`,
+                                WINESERVER: `${await constants.paths.runnersDir}/${runner.name}/${runner.files.wineserver}`,
+                                WINEPREFIX: path
+                            }
+                        });
+
+                        process.outputInterval = null;
+
+                        if (progress)
+                        {
+                            process.outputInterval = 1500;
+
+                            process.output((output) => {
+                                for (let i = 0; i < installationSteps.length; ++i)
+                                    if (output.includes(installationSteps[i]))
+                                    {
+                                        installationProgress = i + 1;
+                
+                                        break;
+                                    }
+
+                                if (output != '')
+                                {
+                                    const lastLine = output.split(/\r\n|\r|\n/gm)
+                                        .filter((line) => line.length > 0)
+                                        .pop()?.trim();
+
+                                    if (lastLine && !lastLine.includes('------'))
+                                        progress(lastLine, installationProgress, installationSteps.length);
+                                }
+                            });
+                        }
+
+                        process.finish(() => resolve(true));
+                    });
+                }
+            });
+        });
+    }
+};

src/ts/core/Runners.ts

@@ -121,97 +121,6 @@ class Runners
             else resolve(new Stream(runner));
         });
     }
-
-    /**
-     * Get path to the winetricks.sh file
-     * 
-     * If this file is not downloaded - then this method will download it
-     * and return the path after it
-     */
-    public static getWinetricks(): Promise<string>
-    {
-        return new Promise(async (resolve) => {
-            const winetricksPath = `${await constants.paths.launcherDir}/winetricks.sh`;
-
-            Neutralino.filesystem.getStats(winetricksPath)
-                .then(() => resolve(winetricksPath))
-                .catch(() => {
-                    Downloader.download(constants.uri.winetricks, winetricksPath).then((stream) => {
-                        stream.finish(() => resolve(winetricksPath));
-                    });
-                });
-        });
-    }
-
-    /**
-     * Create wine prefix using the current selected wine
-     * 
-     * @param path folder to create prefix in
-     * @param progress function that will be called with every creation step
-     * 
-     * @returns false if there's no selected wine version. Otherwise true
-     */
-    public static createPrefix(path: string, progress?: (output: string, current: number, total: number) => void): Promise<boolean>
-    {
-        const installationSteps = [
-            // corefonts
-            'Executing w_do_call corefonts',
-            'Executing load_corefonts',
-            'Executing load_andale',
-            'Executing load_arial',
-            'Executing load_comicsans',
-            'Executing load_courier',
-            'Executing load_georgia',
-            'Executing load_impact',
-            'Executing load_times',
-            'Executing load_trebuchet',
-            'Executing load_verdana',
-            'Executing load_webdings',
-
-            // usetakefocus=n (fullscreen input issues fix)
-            'Executing load_usetakefocus n'
-        ];
-
-        return new Promise((resolve) => {
-            this.current.then((runner) => {
-                if (runner === null)
-                    resolve(false);
-    
-                else
-                {
-                    this.getWinetricks().then(async (winetricks) => {
-                        // let installationProgress = 0;
-
-                        const process = await Process.run(`bash '${Process.addSlashes(winetricks)}' corefonts usetakefocus=n`, {
-                            env: {
-                                WINE: `${await constants.paths.runnersDir}/${runner.name}/${runner.files.wine}`,
-                                WINESERVER: `${await constants.paths.runnersDir}/${runner.name}/${runner.files.wineserver}`,
-                                WINEPREFIX: path
-                            }
-                        });
-
-                        // todo: add process output reading
-
-                        process.finish(() => resolve(true));
-            
-                        /*installerProcess.stdout.on('data', (data: string) => {
-                            let str = data.toString();
-            
-                            for (let i = 0; i < installationSteps.length; ++i)
-                                if (str.includes(installationSteps[i]))
-                                {
-                                    installationProgress = i + 1;
-            
-                                    break;
-                                }
-            
-                            progress(str, installationProgress, installationSteps.length);
-                        });*/
-                    });
-                }
-            });
-        });
-    }
 }
 
 export default Runners;

src/ts/launcher/ProgressBar.ts

@@ -75,10 +75,14 @@ export default class ProgressBar
         this.speedLabelElement.textContent = '';
         this.etaLabelElement.textContent = '';
 
-        if (typeof options.label === 'string')
+        this.downloadedLabelElement.textContent = typeof options.label === 'string' ?
-            this.downloadedLabelElement.textContent = options.label;
+            options.label : '';
 
-        this.progress.beganAt = Date.now();
+        this.progress = {
+            beganAt: Date.now(),
+            prevTime: Date.now(),
+            temp: 0
+        };
     }
 
     /**
@@ -93,7 +97,7 @@ export default class ProgressBar
         // Otherwise update percents and totals if we should
         else if (this.options!.showPercents || this.options!.showPercents)
         {
-            this.downloadedLabelElement.textContent = `${this.options!.label}:`;
+            this.downloadedLabelElement.textContent = this.options!.label;
 
             if (this.options!.showPercents)
                 this.downloadedLabelElement.textContent += ` ${Math.round(current / total * 100)}%`;

src/ts/launcher/State.ts

@@ -1,4 +1,6 @@
+import Game from '../Game';
 import type Launcher from '../Launcher';
+import Patch from '../Patch';
 
 import type { LauncherState } from '../types/Launcher';
 
@@ -8,13 +10,18 @@ export default class State
 
     public launchButton: HTMLElement;
 
-    protected _state: LauncherState = 'game-installation-available';
+    protected _state: LauncherState = 'game-launch-available';
 
     protected events = {
         'game-launch-available': import('./states/Launch'),
 
         'game-installation-available': import('./states/Install'),
-        'game-update-available': import('./states/Install')
+        'game-update-available': import('./states/Install'),
+
+        'game-voice-update-required': import('./states/InstallVoice'),
+
+        'test-patch-available': import('./states/ApplyPatch'),
+        'patch-available': import('./states/ApplyPatch')
     };
 
     public constructor(launcher: Launcher)
@@ -27,6 +34,8 @@ export default class State
             if (this.events[this._state])
                 this.events[this._state].then((event) => event.default(this.launcher));
         };
+
+        this.update();
     }
 
     /**
@@ -44,14 +53,82 @@ export default class State
     {
         this._state = state;
 
+        this.launcher.progressBar!.hide();
+
         switch(state)
         {
             case 'game-launch-available':
-                this.launcher.progressBar!.hide();
-
                 this.launchButton.textContent = 'Launch';
 
+                break;
+
+            case 'game-installation-available':
+                this.launchButton.textContent = 'Install';
+
+                break;
+
+            case 'game-update-available':
+            case 'game-voice-update-required':
+                this.launchButton.textContent = 'Update';
+
+                break;
+
+            case 'patch-available':
+                this.launchButton.textContent = 'Apply patch';
+
+                break;
+
+            case 'test-patch-available':
+                // todo some warning message
+                this.launchButton.textContent = 'Apply test patch';
+
+                break;
+
+            case 'patch-unavailable':
+                // todo some warning message
+                this.launchButton.textContent = 'Patch unavailable';
+
                 break;
         }
     }
+
+    /**
+     * Update launcher state
+     * 
+     * @returns new launcher state
+     * 
+     * This state will be automatically applied to the launcher
+     * so you don't need to do it manually
+     */
+    public update(): Promise<string>
+    {
+        return new Promise(async (resolve) => {
+            let state: LauncherState;
+
+            const gameCurrent = await Game.current;
+            const gameLatest = (await Game.latest).version;
+            const patch = await Patch.latest;
+
+            console.log(patch);
+
+            if (gameCurrent === null)
+                state = 'game-installation-available';
+            
+            else if (gameCurrent != gameLatest)
+                state = 'game-update-available';
+
+            else if (!patch.applied)
+            {
+                state = patch.state == 'preparation' ?
+                    'patch-unavailable' : (patch.state == 'testing' ?
+                    'test-patch-available' : 'patch-available');
+            }
+
+            else state = 'game-launch-available';
+
+            this.set(state);
+
+            resolve(state);
+        });
+    }
 };

src/ts/launcher/states/ApplyPatch.ts

@@ -0,0 +1,39 @@
+import type Launcher from '../../Launcher';
+
+import Patch from '../../Patch';
+
+export default (launcher: Launcher): Promise<void> => {
+    return new Promise(async (resolve) => {
+        Patch.latest.then((patch) => {
+            if (patch.applied)
+                resolve();
+
+            else
+            {
+                launcher.progressBar?.init({
+                    label: 'Applying patch...',
+                    showSpeed: false,
+                    showEta: false,
+                    showPercents: false,
+                    showTotals: false
+                });
+
+                Patch.install().then((stream) => {
+                    if (stream === null)
+                        resolve();
+
+                    else
+                    {
+                        stream.downloadStart(() => launcher.progressBar?.show());
+
+                        stream.patchFinish(() => {
+                            launcher.progressBar?.hide();
+
+                            resolve();
+                        });
+                    }
+                });
+            }
+        });
+    });
+};

src/ts/launcher/states/CreatePrefix.ts

@@ -0,0 +1,51 @@
+import type Launcher from '../../Launcher';
+
+import constants from '../../Constants';
+import Prefix from '../../core/Prefix';
+
+export default (launcher: Launcher): Promise<void> => {
+    return new Promise(async (resolve) => {
+        const prefixDir = await constants.paths.prefix.current;
+
+        Prefix.exists().then((exists) => {
+            if (exists)
+                resolve();
+
+            else
+            {
+                let progressLabel = 'Creating prefix...';
+
+                launcher.progressBar!.init({
+                    label: () => progressLabel,
+                    showSpeed: false,
+                    showEta: false,
+                    showPercents: false,
+                    showTotals: false
+                });
+
+                launcher.progressBar!.show();
+
+                Prefix.create(prefixDir, (output, current, total) => {
+                    progressLabel = output;
+
+                    if (progressLabel.length > 70)
+                        progressLabel = progressLabel.substring(0, 70) + '...';
+
+                    launcher.progressBar!.update(current, total, 1);
+                })
+                .then((result) => {
+                    if (result === true)
+                        resolve();
+
+                    else
+                    {
+                        // TODO
+                        console.error('There\'s no wine version installed to use to create the prefix');
+
+                        resolve();
+                    }
+                });
+            }
+        });
+    });
+};

src/ts/launcher/states/Install.ts

@@ -1,34 +1,23 @@
 import type Launcher from '../../Launcher';
 
 import Game from '../../Game';
-import constants from '../../Constants';
+import Prefix from '../../core/Prefix';
-import Runners from '../../core/Runners';
-
-declare const Neutralino;
 
 export default (launcher: Launcher): Promise<void> => {
     return new Promise(async (resolve) => {
-        const prefixDir = await constants.paths.prefix.current;
+        Prefix.exists().then((exists) => {
-
+            if (!exists)
-        Neutralino.filesystem.getStats(prefixDir)
+            {
-            .then(() => updateGame())
+                import('./CreatePrefix').then((module) => {
-            .catch(() => {
+                    module.default(launcher).then(() => updateGame());
-                Runners.createPrefix(prefixDir).then((result) => {
-                    if (result === true)
-                        updateGame();
-
-                    else
-                    {
-                        // TODO
-                        console.error('There\'s no wine version installed to use to create the prefix');
-
-                        resolve();
-                    }
                 });
-            });
+            }
+        });
 
         const updateGame = async () => {
-            Game.update(await Game.current).then((stream) => {
+            const prevGameVersion = await Game.current;
+
+            Game.update(prevGameVersion).then((stream) => {
                 launcher.progressBar?.init({
                     label: 'Downloading game...',
                     showSpeed: true,
@@ -57,7 +46,12 @@ export default (launcher: Launcher): Promise<void> => {
                     launcher.progressBar?.update(current, total, difference);
                 });
     
-                stream?.unpackFinish(() => resolve());
+                stream?.unpackFinish(() => {
+                    // Download voice package when the game itself was installed
+                    import('./InstallVoice').then((module) => {
+                        module.default(launcher, prevGameVersion).then(() => resolve());
+                    });
+                });
             });
         };
     });

src/ts/launcher/states/InstallVoice.ts

@@ -0,0 +1,43 @@
+import type Launcher from '../../Launcher';
+
+import Voice from '../../Voice';
+
+export default (launcher: Launcher, prevGameVersion: string|null = null): Promise<void> => {
+    return new Promise(async (resolve) => {
+        Voice.update(await Voice.selected, prevGameVersion).then((stream) => {
+            launcher.progressBar?.init({
+                label: 'Downloading voice package...',
+                showSpeed: true,
+                showEta: true,
+                showPercents: true,
+                showTotals: true
+            });
+
+            stream?.downloadStart(() => launcher.progressBar?.show());
+
+            stream?.downloadProgress((current: number, total: number, difference: number) => {
+                launcher.progressBar?.update(current, total, difference);
+            });
+
+            stream?.unpackStart(() => {
+                launcher.progressBar?.init({
+                    label: 'Unpacking voice package...',
+                    showSpeed: true,
+                    showEta: true,
+                    showPercents: true,
+                    showTotals: true
+                });
+            });
+
+            stream?.unpackProgress((current: number, total: number, difference: number) => {
+                launcher.progressBar?.update(current, total, difference);
+            });
+
+            stream?.unpackFinish(() => {
+                launcher.progressBar?.hide();
+
+                resolve();
+            });
+        });
+    });
+};

src/ts/neutralino/Process.ts

@@ -1,7 +1,7 @@
 declare const Neutralino;
+declare const NL_CWD;
 
 type ProcessOptions = {
-    input?: string;
     env?: object;
     cwd?: string;
 };
@@ -20,7 +20,19 @@ class Process
      * 
      * @default 200
      */
-    public interval: number|null;
+    public runningInterval: number|null = 200;
+
+    /**
+     * Interval in ms between process output update
+     * 
+     * null if you don't want to update process output
+     * 
+     * @default 500
+     */
+    public outputInterval: number|null = 500;
+
+    protected outputFile: string|null;
+    protected outputOffset: number = 0;
 
     protected _finished: boolean = false;
 
@@ -32,20 +44,21 @@ class Process
         return this._finished;
     };
 
+    protected onOutput?: (output: string, process: Process) => void;
     protected onFinish?: (process: Process) => void;
 
-    public constructor(pid: number, interval: number|null = 200)
+    public constructor(pid: number, outputFile: string|null = null)
     {
         this.id = pid;
-        this.interval = interval;
+        this.outputFile = outputFile;
 
         const updateStatus = () => {
             this.running().then((running) => {
                 // The process is still running
                 if (running)
                 {
-                    if (this.interval)
+                    if (this.runningInterval)
-                        setTimeout(updateStatus, this.interval);
+                        setTimeout(updateStatus, this.runningInterval);
                 }
 
                 // Otherwise the process was stopped
@@ -59,8 +72,34 @@ class Process
             });
         };
 
-        if (this.interval)
+        if (this.runningInterval)
-            setTimeout(updateStatus, this.interval);
+            setTimeout(updateStatus, this.runningInterval);
+
+        if (this.outputFile)
+        {
+            const updateOutput = () => {
+                Neutralino.filesystem.readFile(this.outputFile)
+                    .then((output: string) => {
+                        if (this.onOutput)
+                            this.onOutput(output.substring(this.outputOffset), this);
+
+                        this.outputOffset = output.length;
+
+                        if (this._finished)
+                            Neutralino.filesystem.removeFile(this.outputFile);
+
+                        else if (this.outputInterval)
+                            setTimeout(updateOutput, this.outputInterval);
+                    })
+                    .catch(() => {
+                        if (this.outputInterval && !this._finished)
+                            setTimeout(updateOutput, this.outputInterval);
+                    });
+            };
+
+            if (this.outputInterval)
+                setTimeout(updateOutput, this.outputInterval);
+        }
     }
 
     /**
@@ -75,7 +114,7 @@ class Process
 
         // If user stopped process status auto-checking
         // then we should check it manually when this method was called
-        else if (this.interval === null)
+        else if (this.runningInterval === null)
         {
             this.running().then((running) => {
                 if (!running)
@@ -88,6 +127,11 @@ class Process
         }
     }
 
+    public output(callback: (output: string, process: Process) => void)
+    {
+        this.onOutput = callback;
+    }
+
     /**
      * Kill process
      */
@@ -117,8 +161,9 @@ class Process
      */
     public static run(command: string, options: ProcessOptions = {}): Promise<Process>
     {
-        
         return new Promise(async (resolve) => {
+            const tmpFile = `${NL_CWD}/${10000 + Math.round(Math.random() * 89999)}.tmp`;
+
             // Set env variables
             if (options.env)
             {
@@ -127,17 +172,19 @@ class Process
                 });
             }
 
+            // Set output redirection to the temp file
+            command = `${command} > '${this.addSlashes(tmpFile)}' 2>&1`;
+
             // Set current working directory
             if (options.cwd)
                 command = `cd '${this.addSlashes(options.cwd)}' && ${command} && cd -`;
 
             // And run the command
             const process = await Neutralino.os.execCommand(command, {
-                background: true,
+                background: true
-                stdin: options.input ?? ''
             });
 
-            resolve(new Process(process.pid));
+            resolve(new Process(process.pid, tmpFile));
         });
     }
 

src/ts/types/Launcher.ts

@@ -1,11 +1,25 @@
+/**
+ * With a first run the game will not be installed
+ * and the launcher will have "game-installation-available" state
+ * 
+ * With it, launcher will create wine prefix if it is required,
+ * download the game, voice data and unpack them
+ * 
+ * Then, with game's updates launcher will have "game-update-available" state
+ * and with it it will download and unpack game and voice updates
+ * 
+ * When the game is installed and updated - then launcher will have either
+ * "patch-unavailable", "test-patch-available", "patch-available", or "game-launch-available"
+ * So it will either download and apply patch, launch the game or notify user that the patch is not available
+ */
+
 type LauncherState =
     | 'patch-unavailable'
     | 'test-patch-available'
-    | 'patch-applying'
+    | 'patch-available'
-    | 'game-update-available'
     | 'game-installation-available'
+    | 'game-update-available'
     | 'game-voice-update-required'
-    | 'resume-download-available'
     | 'game-launch-available';
 
 export type { LauncherState };