Working on division between modpack and instance

fclauncher/2

@@ -0,0 +1,34 @@
+package main
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+)
+
+type Instance struct {
+	InstanceName string
+	ModpackId string
+	ModpackVersion string
+}
+
+type InstanceManager struct {
+	instances []Instance
+	PrismLauncher Prism
+	ctx context.Context	
+}
+
+func (i *InstanceManager)SearchInstances() {
+	i.instances = []Instance{}
+	dir := i.PrismLauncher.GetInstanceDir()
+	subdirs, _ := os.ReadDir(dir)
+	for _, d := range subdirs {
+		if !d.IsDir() {
+			continue
+		}
+		if _, err := os.Stat(filepath.Join(dir, d.Name(), "instance.json")); err != nil {
+			continue
+		}
+		f, _ = os.OpenFile()
+	}
+}

fclauncher/InstanceManager.go

@@ -0,0 +1,67 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+type Instance struct {
+	InstanceName string
+	ModpackId string
+	ModpackVersion string
+}
+
+type InstanceManager struct {
+	instances []Instance
+	app	*App
+}
+
+func (i *InstanceManager)SearchInstances() {
+	i.instances = []Instance{}
+	dir := i.app.PrismLauncher.GetInstanceDir()
+	if _, err := os.Stat(dir); err != nil {
+		return
+	}
+	subdirs, _ := os.ReadDir(dir)
+	for _, d := range subdirs {
+		if !d.IsDir() {
+			continue
+		}
+		if _, err := os.Stat(filepath.Join(dir, d.Name(), "instance.json")); err != nil {
+			continue
+		}
+		f, _ := os.OpenFile(filepath.Join(dir, d.Name(), "instance.json"), os.O_RDONLY, 0755)
+		defer f.Close()
+		buff := new(bytes.Buffer)
+		io.Copy(buff, f)
+		instance := Instance{}
+		json.Unmarshal(buff.Bytes(), &instance)
+		fmt.Printf("Found Instance: %+v\n", instance)
+		i.instances = append(i.instances, instance)
+	}
+}
+
+func (i *InstanceManager)InstallModpack(modpack Modpack, instanceName string){
+	i.app.Status(fmt.Sprintf("Installing %s", modpack.Name))
+	version := modpack.Versions[len(modpack.Versions)-1]
+	dname, _ := os.MkdirTemp("", "fclauncher-*")
+	f, _ := os.OpenFile(filepath.Join(dname, instanceName+".mrpack"), os.O_CREATE|os.O_RDWR, 0755)
+	defer f.Close()
+	HttpDownload(modpack.Id + "/" + version.File, f, i.app.Ctx)
+	i.app.PrismLauncher.ImportModpack(f.Name())
+	instance := Instance{InstanceName: instanceName, ModpackVersion: version.Version, ModpackId: modpack.Id}
+	i.instances = append(i.instances, instance)
+	f, _ = os.OpenFile(filepath.Join(i.app.PrismLauncher.GetInstanceDir(), instanceName, "instance.json"), os.O_CREATE|os.O_RDWR, 0755)
+	defer f.Close()
+	data, _ := json.Marshal(instance)
+	f.Write(data)
+}
+
+func (i *InstanceManager)GetInstances() []Instance{
+	return i.instances
+}
+

fclauncher/Java.go

@@ -4,7 +4,6 @@ import (
 	"archive/tar"
 	"bytes"
 	"compress/gzip"
-	"context"
 	"fmt"
 	"io"
 	"os"
@@ -15,11 +14,11 @@ import (
 	"github.com/zhyee/zipstream"
 )
 
-type Java struct {
-	ctx context.Context
+type JavaManager struct {
+	app	*App
 }
 
-func (Java)CheckJavaVer(version int) bool{
+func (JavaManager)CheckJavaVer(version int) bool{
 	suffix := "lin"
 	if runtime.GOOS == "windows" {
 		suffix = "win"
@@ -35,13 +34,13 @@ func (Java)CheckJavaVer(version int) bool{
 
 }
 
-func (j *Java)InstallJavaVer(version int) {
+func (j *JavaManager)InstallJavaVer(version int) {
 	suffix := "lin.tar.gz"
 	if runtime.GOOS == "windows" {
 		suffix = "win.zip"
 	}
 	buff := new(bytes.Buffer)
-	HttpDownload("java/"+fmt.Sprintf("java-%d-%s", version, suffix), buff, j.ctx)
+	HttpDownload("java/"+fmt.Sprintf("java-%d-%s", version, suffix), buff, j.app.Ctx)
 	path, _ := os.UserConfigDir()
 	suffix = "lin"
 	if runtime.GOOS == "windows" {

fclauncher/Modpack.go

@@ -0,0 +1,62 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"time"
+)
+
+type Modpack struct {
+	Name         string
+	Id           string
+	Last_updated string
+	Versions []Version
+}
+
+type Version struct {
+	Version string
+	Data time.Time
+	File string
+}
+
+type ModpackManager struct {
+	app *App
+	Modpacks []Modpack
+}
+
+
+func (m *ModpackManager) QuerryModpacks() {
+	buff := new(bytes.Buffer)
+	err := HttpDownload("modpacks.json", buff, nil)
+	if err != nil {
+		return
+	}
+	err = json.Unmarshal(buff.Bytes(), &m.Modpacks)
+	if err != nil {
+		return
+	}
+	
+	for ind, pack := range m.Modpacks {
+		buff = new(bytes.Buffer)
+		err = HttpDownload(pack.Id + "/versions.json", buff, nil)
+		if err != nil {
+			continue 
+		}
+		json.Unmarshal(buff.Bytes(), &pack.Versions)	
+		m.Modpacks[ind] = pack
+	}
+}
+
+
+func (m *ModpackManager) GetModpacks() []Modpack{
+	return m.Modpacks
+}
+
+func (m *ModpackManager) GetModpack(id string) Modpack {
+	for _, pack := range m.Modpacks {
+		if pack.Id == id {
+			return pack
+		}
+	}
+	return Modpack{}
+}

fclauncher/Prism.go

@@ -2,36 +2,26 @@ package main
 
 import (
 	"archive/tar"
+	"bufio"
 	"bytes"
 	"compress/gzip"
-	"context"
-	"encoding/json"
+	"fmt"
 	"io"
 	"os"
+	"os/exec"
 	"path/filepath"
 	"runtime"
+	"strings"
 	"time"
 
 	"github.com/zhyee/zipstream"
 )
 
 type Prism struct {
-	Instances []Instance
-	ctx       context.Context
+	app *App
 }
 
-type Instance struct {
-	Path    string
-	Name    string
-	MCVer   string
-	JavaVer string
-}
 
-type Version struct {
-	Version string
-	Data time.Time
-	File string
-}
 
 func (Prism) CheckInstalled() bool {
 	path, _ := os.UserConfigDir()
@@ -45,11 +35,13 @@ func (Prism) CheckInstalled() bool {
 
 func (p *Prism) Install() {
 	suffix := "lin.tar.gz"
+	shortSuffix := "lin"
 	if runtime.GOOS == "windows" {
 		suffix = "win.zip"
+		shortSuffix = "win"
 	}
 	buff := new(bytes.Buffer)
-	HttpDownload("prism/prism-"+suffix, buff, p.ctx)
+	HttpDownload("prism/prism-"+suffix, buff, p.app.Ctx)
 	path, _ := os.UserConfigDir()
 	os.MkdirAll(filepath.Join(path, "FCLauncher", "prism"), 0755)
 	if runtime.GOOS == "windows" {
@@ -121,18 +113,51 @@ func (p *Prism) Install() {
 		}
 
 	}
-}
-
-
-func (p *Prism)InstallModpack(modpack Modpack){
-	buff := new(bytes.Buffer)
-	HttpDownload(modpack.Id + "/versions.json", buff, nil)
-	var versions []Version
-	json.Unmarshal(buff.Bytes(), &versions)
-	version := versions[len(versions)-1]
-	dname, _ := os.MkdirTemp("", "fclauncher-*")
-	f, _ := os.OpenFile(filepath.Join(dname, modpack.Name+".mrpack"), os.O_CREATE|os.O_RDWR, 0755)
+	dir, _ := os.UserConfigDir()
+	buff = new(bytes.Buffer)
+	HttpDownload("prism/prismlauncher.cfg", buff, nil)
+	scanner := bufio.NewScanner(buff)
+	f, _ := os.OpenFile(filepath.Join(dir, "FCLauncher", "prism", "prismlauncher.cfg"), os.O_CREATE|os.O_RDWR, 0755)
 	defer f.Close()
-	HttpDownload(modpack.Id + "/" + version.File, f, p.ctx)
-
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "JavaPath") {
+			line = fmt.Sprintf("JavaPath=%s/FCLauncher/java/java-21-%s", dir, shortSuffix)
+		}
+		if strings.HasPrefix(line, "LastHostname") {
+			host, _ := os.Hostname()
+			line = fmt.Sprintf("LastHostname=%s", host)
+		}
+		f.WriteString(line + "\n")
+	}
+}
+
+
+
+func (Prism)GetInstanceDir() string{
+	dir, _ := os.UserConfigDir()
+	return filepath.Join(dir, "FCLauncher", "prism", "instances")
+}
+
+func (Prism)getExecutableName() string {
+	execName := "PrismLauncher"
+	if runtime.GOOS == "windows" {
+		execName = "prismlauncher.exe"
+	}
+	return execName
+}
+
+func (p *Prism)ImportModpack(path string) {
+	dir, _ := os.UserConfigDir()
+	child := exec.Command(filepath.Join(dir, "FCLauncher", "prism", p.getExecutableName()), "-I", path)
+	child.Start()
+	tokens := strings.Split(path, string(os.PathSeparator))
+	versionPath := filepath.Join(dir, "FCLauncher", "prism", "instances",strings.Split(tokens[len(tokens)-1], ".")[0], ".minecraft", "version.txt")
+	for {
+		time.Sleep(time.Second * 3)
+		if _, err := os.Stat(versionPath); err == nil {
+			break
+		}
+	}
+	child.Process.Kill()
 }

fclauncher/app.go

@@ -1,91 +1,69 @@
 package main
 
 import (
-	"bytes"
 	"context"
-	"encoding/json"
 	"fmt"
-	"io"
 
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
 
 // App struct
 type App struct {
-	ctx   context.Context
-	prism Prism
-	java Java
+	Ctx   context.Context
+	PrismLauncher Prism
+	Java JavaManager
+	Instance InstanceManager
+	Modpacks ModpackManager
 }
 
-type Modpack struct {
-	Name         string
-	Id           string
-	Last_updated string
-}
 
 // NewApp creates a new App application struct
 func NewApp() *App {
-	return &App{}
+	a := &App{}
+	a.PrismLauncher = Prism{app: a}
+	a.Java = JavaManager{app: a}
+	a.Instance = InstanceManager{app: a}
+	a.Modpacks = ModpackManager{app: a}
+	return a
 }
 
 // startup is called when the app starts. The context is saved
 // so we can call the runtime methods
 func (a *App) startup(ctx context.Context) {
-	a.ctx = ctx
+	a.Ctx = ctx
 }
 
 // Greet returns a greeting for the given name
-func (a *App) Greet(name string) string {
-	return fmt.Sprintf("Hello %s, It's show time!", name)
-}
 
-func (a *App) GetModpacks() []Modpack {
-	buff := new(bytes.Buffer)
-	err := HttpDownload("modpacks.json", buff, nil)
-	if err != nil {
-		fmt.Println(err)
-	}
-	body, err := io.ReadAll(buff)
-	var modpacks []Modpack
-	err = json.Unmarshal([]byte(body), &modpacks)
-	if err != nil {
-		fmt.Println(err.Error())
-		return nil
-	}
-	return modpacks
-}
 
 func (a *App) CheckPrerequisites() {
-	a.status("Checking Prism")
-	a.prism = Prism{ctx: a.ctx}
-	res := a.prism.CheckInstalled()
+	a.Status("Querrying Existing Instances")
+	a.Instance.SearchInstances()
+	a.Status("Pulling Modpacks")
+	a.Modpacks.QuerryModpacks()
+	a.Status("Checking Prism")
+	res := a.PrismLauncher.CheckInstalled()
 	if res {
-		a.status("Prism OK")
+		a.Status("Prism OK")
 	} else {
-		a.status("Prism MISSING")
-		a.status("Installing Prism")
-		a.prism.Install()
-		a.status("Prism Installed")
+		a.Status("Prism MISSING")
+		a.Status("Installing Prism")
+		a.PrismLauncher.Install()
+		a.Status("Prism Installed")
 	}
-	a.status("Checking Java 21")
-	a.java = Java{ctx: a.ctx}
-	res = a.java.CheckJavaVer(21)
+	a.Status("Checking Java 21")
+	res = a.Java.CheckJavaVer(21)
 	if res {
-		a.status("Java 21 OK")
+		a.Status("Java 21 OK")
 	} else {
-		a.status("Java 21 MISSING")
-		a.status("Installing Java 21")
-		a.java.InstallJavaVer(21)
-		a.status("Java 21 Installed")
+		a.Status("Java 21 MISSING")
+		a.Status("Installing Java 21")
+		a.Java.InstallJavaVer(21)
+		a.Status("Java 21 Installed")
 	}
 }
 
-func (a *App) InstallModpack(pack Modpack) {
-	a.status(fmt.Sprintf("Installing %s\n", pack.Name))
-	a.prism.InstallModpack(pack)
-}
-
-func (a *App) status(status string) {
+func (a *App) Status(status string) {
 	fmt.Printf("LOG: %s\n", status)
-	runtime.EventsEmit(a.ctx, "status", status)
+	runtime.EventsEmit(a.Ctx, "status", status)
 }

fclauncher/frontend/src/App.svelte

@@ -1,6 +1,6 @@
 <script lang="ts">
   import logo from './assets/images/logo-universal.png'
-  import Client from './Client.svelte'
+  import Instances from './Instances.svelte'
 	import Loading from './Loading.svelte'
   import {CheckPrerequisites} from '../wailsjs/go/main/App.js'
 	import { onMount } from 'svelte'
@@ -20,7 +20,7 @@
 	{#if $loading}
 		<Loading />
 	{:else}
-  	<Client />
+  	<Instances />
 	{/if}
 </main>
 

fclauncher/frontend/src/Client.svelte

@@ -1,32 +0,0 @@
-<script lang="ts">
-  import {GetModpacks, InstallModpack} from '../wailsjs/go/main/App.js'
-	import {onMount} from 'svelte'
-	import {loading} from './global.ts'
-
-  let modpacks: string[] = []
-	let pack: Modpack
-
-  onMount(() => {
-		GetModpacks().then((result) => {
-				modpacks = result
-				pack = modpacks[0]
-		})
-  })
-
-	function onclick(event) {
-		$loading = true
-		InstallModpack(pack).then(() => {$loading = false})
-	}
-</script>
-
-<main>
-  <select bind:value={pack} name="pack">Select a Modpack: 
-		{#each modpacks as pack}
-				<option value={pack}>{pack.Name}</option>
-		{/each}
-  </select>
-	<button on:click={onclick}>Launch</button>
-</main>
-
-<style>
-</style>

fclauncher/frontend/src/Instances.svelte

@@ -0,0 +1,74 @@
+<script lang="ts">
+  import {GetModpacks, GetModpack} from '../wailsjs/go/main/ModpackManager.js'
+	import {InstallModpack, GetInstances} from '../wailsjs/go/main/InstanceManager.js'
+	import {onMount} from 'svelte'
+	import {loading} from './global.ts'
+
+  let modpacks: Modpack[] = []
+	let pack: string
+	let instances: Instance[] = []
+	let instance: Instance
+	let addingInstance: boolean = false
+	let name: string = "New Modpack"
+
+  onMount(() => {
+		GetModpacks().then((result) => {
+				modpacks = result
+				pack = modpacks[0].Id
+				name = modpacks[0].Name
+		})
+		GetInstances().then((result) => {
+			instances = result
+			instance = instances[0]
+		})
+  })
+
+	function onclick(event) {
+	}
+
+	function install(){
+		$loading = true
+		GetModpack(pack).then((result) => {
+			InstallModpack(result, name).then(() => {
+				onMount()
+				addingInstance = false
+				$loading = false
+			})
+		})
+	}
+
+	function onchange(event){
+		GetModpack(event.target.value).then((result) => {
+			name = result.Name
+		})
+	}
+
+
+</script>
+
+<main>
+  <select bind:value={instance} name="pack">Select a Modpack: 
+		{#each instances as instance}
+				<option value={instance}>{instance.InstanceName}</option>
+		{/each}
+  </select>
+	<button on:click={onclick}>Launch</button>
+	<br/>
+	{#if addingInstance}
+		<select id="pack" on:change={onchange} bind:value={pack} name="pack">Select a Modpack: 
+			{#each modpacks as pack}
+				<option value={pack.Id}>{pack.Name}</option>
+			{/each}
+  	</select>
+		<br/>
+		<input bind:value={name} />
+		<br/>
+		<button on:click={install}>Install</button>
+		<button on:click={() => {addingInstance = false}}>Cancel</button>
+	{:else}
+		<button on:click={() => {addingInstance = true}}>Add Instance</button>
+	{/if}
+</main>
+
+<style>
+</style>

fclauncher/frontend/wailsjs/go/main/App.d.ts

@@ -1,11 +1,6 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
-import {main} from '../models';
 
 export function CheckPrerequisites():Promise<void>;
 
-export function GetModpacks():Promise<Array<main.Modpack>>;
-
-export function Greet(arg1:string):Promise<string>;
-
-export function InstallModpack(arg1:main.Modpack):Promise<void>;
+export function Status(arg1:string):Promise<void>;

fclauncher/frontend/wailsjs/go/main/App.js

@@ -6,14 +6,6 @@ export function CheckPrerequisites() {
   return window['go']['main']['App']['CheckPrerequisites']();
 }
 
-export function GetModpacks() {
-  return window['go']['main']['App']['GetModpacks']();
-}
-
-export function Greet(arg1) {
-  return window['go']['main']['App']['Greet'](arg1);
-}
-
-export function InstallModpack(arg1) {
-  return window['go']['main']['App']['InstallModpack'](arg1);
+export function Status(arg1) {
+  return window['go']['main']['App']['Status'](arg1);
 }

fclauncher/frontend/wailsjs/go/main/InstanceManager.d.ts

@@ -0,0 +1,9 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+import {main} from '../models';
+
+export function GetInstances():Promise<Array<main.Instance>>;
+
+export function InstallModpack(arg1:main.Modpack,arg2:string):Promise<void>;
+
+export function SearchInstances():Promise<void>;

fclauncher/frontend/wailsjs/go/main/InstanceManager.js

@@ -0,0 +1,15 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function GetInstances() {
+  return window['go']['main']['InstanceManager']['GetInstances']();
+}
+
+export function InstallModpack(arg1, arg2) {
+  return window['go']['main']['InstanceManager']['InstallModpack'](arg1, arg2);
+}
+
+export function SearchInstances() {
+  return window['go']['main']['InstanceManager']['SearchInstances']();
+}

fclauncher/frontend/wailsjs/go/main/JavaManager.d.ts

@@ -0,0 +1,6 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function CheckJavaVer(arg1:number):Promise<boolean>;
+
+export function InstallJavaVer(arg1:number):Promise<void>;

fclauncher/frontend/wailsjs/go/main/JavaManager.js

@@ -0,0 +1,11 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function CheckJavaVer(arg1) {
+  return window['go']['main']['JavaManager']['CheckJavaVer'](arg1);
+}
+
+export function InstallJavaVer(arg1) {
+  return window['go']['main']['JavaManager']['InstallJavaVer'](arg1);
+}

fclauncher/frontend/wailsjs/go/main/ModpackManager.d.ts

@@ -0,0 +1,9 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+import {main} from '../models';
+
+export function GetModpack(arg1:string):Promise<main.Modpack>;
+
+export function GetModpacks():Promise<Array<main.Modpack>>;
+
+export function QuerryModpacks():Promise<void>;

fclauncher/frontend/wailsjs/go/main/ModpackManager.js

@@ -0,0 +1,15 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function GetModpack(arg1) {
+  return window['go']['main']['ModpackManager']['GetModpack'](arg1);
+}
+
+export function GetModpacks() {
+  return window['go']['main']['ModpackManager']['GetModpacks']();
+}
+
+export function QuerryModpacks() {
+  return window['go']['main']['ModpackManager']['QuerryModpacks']();
+}

fclauncher/frontend/wailsjs/go/main/Prism.d.ts

@@ -0,0 +1,10 @@
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function CheckInstalled():Promise<boolean>;
+
+export function GetInstanceDir():Promise<string>;
+
+export function ImportModpack(arg1:string):Promise<void>;
+
+export function Install():Promise<void>;

fclauncher/frontend/wailsjs/go/main/Prism.js

@@ -0,0 +1,19 @@
+// @ts-check
+// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
+// This file is automatically generated. DO NOT EDIT
+
+export function CheckInstalled() {
+  return window['go']['main']['Prism']['CheckInstalled']();
+}
+
+export function GetInstanceDir() {
+  return window['go']['main']['Prism']['GetInstanceDir']();
+}
+
+export function ImportModpack(arg1) {
+  return window['go']['main']['Prism']['ImportModpack'](arg1);
+}
+
+export function Install() {
+  return window['go']['main']['Prism']['Install']();
+}

fclauncher/frontend/wailsjs/go/models.ts

@@ -1,9 +1,61 @@
 export namespace main {
 	
+	export class Instance {
+	    InstanceName: string;
+	    ModpackId: string;
+	    ModpackVersion: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new Instance(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.InstanceName = source["InstanceName"];
+	        this.ModpackId = source["ModpackId"];
+	        this.ModpackVersion = source["ModpackVersion"];
+	    }
+	}
+	export class Version {
+	    Version: string;
+	    // Go type: time
+	    Data: any;
+	    File: string;
+	
+	    static createFrom(source: any = {}) {
+	        return new Version(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.Version = source["Version"];
+	        this.Data = this.convertValues(source["Data"], null);
+	        this.File = source["File"];
+	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice && a.map) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
+	}
 	export class Modpack {
 	    Name: string;
 	    Id: string;
 	    Last_updated: string;
+	    Versions: Version[];
 	
 	    static createFrom(source: any = {}) {
 	        return new Modpack(source);
@@ -14,7 +66,26 @@ export namespace main {
 	        this.Name = source["Name"];
 	        this.Id = source["Id"];
 	        this.Last_updated = source["Last_updated"];
+	        this.Versions = this.convertValues(source["Versions"], Version);
 	    }
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+		    if (!a) {
+		        return a;
+		    }
+		    if (a.slice && a.map) {
+		        return (a as any[]).map(elem => this.convertValues(elem, classs));
+		    } else if ("object" === typeof a) {
+		        if (asMap) {
+		            for (const key of Object.keys(a)) {
+		                a[key] = new classs(a[key]);
+		            }
+		            return a;
+		        }
+		        return new classs(a);
+		    }
+		    return a;
+		}
 	}
 
 }

fclauncher/main.go

@@ -27,6 +27,10 @@ func main() {
 		OnStartup:        app.startup,
 		Bind: []interface{}{
 			app,
+			&app.Instance,
+			&app.PrismLauncher,
+			&app.Java,
+			&app.Modpacks,
 		},
 	})