From 45b11fa8f4eeb48fe214e377a1d49c0bc79765a0 Mon Sep 17 00:00:00 2001
From: John O'Keefe <jokeefe@fastmail.com>
Date: Sat, 7 Sep 2024 22:35:51 -0400
Subject: [PATCH] app now only allows a single instance

---
 AniListUserFunctions.go |  4 ++--
 MALUserFunctions.go     |  4 ++--
 SimklUserFunctions.go   |  4 ++--
 app.go                  | 17 ++++++++++++++++-
 main.go                 |  4 ++++
 5 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/AniListUserFunctions.go b/AniListUserFunctions.go
index 045923c..22c94ae 100644
--- a/AniListUserFunctions.go
+++ b/AniListUserFunctions.go
@@ -52,7 +52,7 @@ func (a *App) AniListLogin() {
 		refreshToken, err := aniRing.Get("anilistRefreshToken")
 		if err != nil || len(accessToken.Data) == 0 {
 			getAniListCodeUrl := "https://anilist.co/api/v2/oauth/authorize?client_id=" + Environment.ANILIST_APP_ID + "&redirect_uri=" + Environment.ANILIST_CALLBACK_URI + "&response_type=code"
-			runtime.BrowserOpenURL(a.ctx, getAniListCodeUrl)
+			runtime.BrowserOpenURL(*wailsContext, getAniListCodeUrl)
 
 			serverDone := &sync.WaitGroup{}
 			serverDone.Add(1)
@@ -97,7 +97,7 @@ func (a *App) handleAniListCallback(wg *sync.WaitGroup) {
 				Key:  "anilistRefreshToken",
 				Data: []byte(aniListJwt.RefreshToken),
 			})
-			_, err := runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+			_, err := runtime.MessageDialog(*wailsContext, runtime.MessageDialogOptions{
 				Title:   "AniList Authorization",
 				Message: "It is now safe to close your browser tab",
 			})
diff --git a/MALUserFunctions.go b/MALUserFunctions.go
index 1efb883..16a560c 100644
--- a/MALUserFunctions.go
+++ b/MALUserFunctions.go
@@ -97,7 +97,7 @@ func (a *App) MyAnimeListLogin() {
 		if err != nil || len(accessToken.Data) == 0 {
 			verifier, _ := verifier()
 			getMyAnimeListCodeUrl := "https://myanimelist.net/v1/oauth2/authorize?response_type=code&client_id=" + Environment.MAL_CLIENT_ID + "&redirect_uri=" + Environment.MAL_CALLBACK_URI + "&code_challenge=" + verifier.Value + "&code_challenge_method=plain"
-			runtime.BrowserOpenURL(a.ctx, getMyAnimeListCodeUrl)
+			runtime.BrowserOpenURL(*wailsContext, getMyAnimeListCodeUrl)
 			serverDone := &sync.WaitGroup{}
 			serverDone.Add(1)
 			a.handleMyAnimeListCallback(serverDone, verifier)
@@ -144,7 +144,7 @@ func (a *App) handleMyAnimeListCallback(wg *sync.WaitGroup, verifier *CodeVerifi
 				Key:  "MyAnimeListRefreshToken",
 				Data: []byte(myAnimeListJwt.RefreshToken),
 			})
-			_, err := runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+			_, err := runtime.MessageDialog(*wailsContext, runtime.MessageDialogOptions{
 				Title:   "MyAnimeList Authorization",
 				Message: "It is now safe to close your browser tab",
 			})
diff --git a/SimklUserFunctions.go b/SimklUserFunctions.go
index 24207dd..f435a22 100644
--- a/SimklUserFunctions.go
+++ b/SimklUserFunctions.go
@@ -47,7 +47,7 @@ func (a *App) SimklLogin() {
 		scope, err := simklRing.Get("SimklScope")
 		if err != nil || len(accessToken.Data) == 0 {
 			getSimklCodeUrl := "https://simkl.com/oauth/authorize?response_type=code&client_id=" + Environment.SIMKL_CLIENT_ID + "&redirect_uri=" + Environment.SIMKL_CALLBACK_URI
-			runtime.BrowserOpenURL(a.ctx, getSimklCodeUrl)
+			runtime.BrowserOpenURL(*wailsContext, getSimklCodeUrl)
 
 			serverDone := &sync.WaitGroup{}
 			serverDone.Add(1)
@@ -87,7 +87,7 @@ func (a *App) handleSimklCallback(wg *sync.WaitGroup) {
 				Key:  "SimklScope",
 				Data: []byte(simklJwt.Scope),
 			})
-			_, err := runtime.MessageDialog(a.ctx, runtime.MessageDialogOptions{
+			_, err := runtime.MessageDialog(*wailsContext, runtime.MessageDialogOptions{
 				Title:   "Simkl Authorization",
 				Message: "It is now safe to close your browser tab",
 			})
diff --git a/app.go b/app.go
index 17a3abb..4505391 100644
--- a/app.go
+++ b/app.go
@@ -2,8 +2,13 @@ package main
 
 import (
 	"context"
+	"github.com/wailsapp/wails/v2/pkg/options"
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+	"strings"
 )
 
+var wailsContext *context.Context
+
 // App struct
 type App struct {
 	ctx context.Context
@@ -17,6 +22,16 @@ func NewApp() *App {
 // 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
+	wailsContext = &ctx
 	//runtime.WindowMaximise(ctx)
 }
+
+func (a *App) onSecondInstanceLaunch(secondInstanceData options.SecondInstanceData) {
+	var secondInstanceArgs = secondInstanceData.Args
+
+	println("user opened second instance", strings.Join(secondInstanceData.Args, ","))
+	println("user opened second from", secondInstanceData.WorkingDirectory)
+	runtime.WindowUnminimise(*wailsContext)
+	runtime.Show(*wailsContext)
+	go runtime.EventsEmit(*wailsContext, "launchArgs", secondInstanceArgs)
+}
diff --git a/main.go b/main.go
index 83ad324..d062198 100644
--- a/main.go
+++ b/main.go
@@ -26,6 +26,10 @@ func main() {
 		},
 		BackgroundColour: &options.RGBA{R: 27, G: 38, B: 54, A: 1},
 		OnStartup:        app.startup,
+		SingleInstanceLock: &options.SingleInstanceLock{
+			UniqueId:               "49c93b6d-663d-4b7a-9cb0-8a469ea9182b",
+			OnSecondInstanceLaunch: app.onSecondInstanceLaunch,
+		},
 		Bind: []interface{}{
 			app,
 		},