root
129 lines
3.8 KiB
Go
129 lines
3.8 KiB
Go
package main
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import (
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"embed"
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"mime"
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"net/http"
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"os"
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"path/filepath"
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"strconv"
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"strings"
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"log"
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"time"
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"github.com/wailsapp/wails/v3/pkg/application"
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)
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// Wails uses Go's `embed` package to embed the frontend files into the binary.
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// Any files in the frontend/dist folder will be embedded into the binary and
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// made available to the frontend.
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// See https://pkg.go.dev/embed for more information.
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//go:embed all:frontend/dist
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var assets embed.FS
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func init() {
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// Register a custom event whose associated data type is string.
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// This is not required, but the binding generator will pick up registered events
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// and provide a strongly typed JS/TS API for them.
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application.RegisterEvent[string]("time")
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// Force register .pdf MIME type for WebView2 default PDF reader loading
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_ = mime.AddExtensionType(".pdf", "application/pdf")
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}
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// main function serves as the application's entry point. It initializes the application, creates a window,
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// and starts a goroutine that emits a time-based event every second. It subsequently runs the application and
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// logs any error that might occur.
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func main() {
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defaultHandler := application.AssetFileServerFS(assets)
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customAssetHandler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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path := r.URL.Path
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if strings.HasPrefix(path, "/assets/") {
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filename := strings.TrimPrefix(path, "/assets/")
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localPath := filepath.Join("assets", filename)
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if _, err := os.Stat(localPath); err == nil {
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http.ServeFile(w, r, localPath)
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return
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}
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}
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defaultHandler.ServeHTTP(w, r)
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})
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quizService := NewQuizService()
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serverHost := os.Getenv("WAILS_SERVER_HOST")
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if serverHost == "" {
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serverHost = "0.0.0.0"
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}
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serverPortStr := os.Getenv("WAILS_SERVER_PORT")
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serverPort := 8080
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if serverPortStr != "" {
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if p, err := strconv.Atoi(serverPortStr); err == nil {
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serverPort = p
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}
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}
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// Create a new Wails application by providing the necessary options.
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// Variables 'Name' and 'Description' are for application metadata.
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// 'Assets' configures the asset server with the 'FS' variable pointing to the frontend files.
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// 'Bind' is a list of Go struct instances. The frontend has access to the methods of these instances.
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// 'Mac' options tailor the application when running an macOS.
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app := application.New(application.Options{
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Name: "Master CBT",
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Description: "Learn everything with me",
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Services: []application.Service{
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application.NewService(quizService),
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},
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Assets: application.AssetOptions{
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Handler: customAssetHandler,
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},
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Server: application.ServerOptions{
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Host: serverHost,
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Port: serverPort,
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},
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Mac: application.MacOptions{
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ApplicationShouldTerminateAfterLastWindowClosed: true,
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},
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})
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quizService.SetApp(app)
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// Create a new window with the necessary options.
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// 'Title' is the title of the window.
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// 'Mac' options tailor the window when running on macOS.
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// 'BackgroundColour' is the background colour of the window.
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// 'URL' is the URL that will be loaded into the webview.
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app.Window.NewWithOptions(application.WebviewWindowOptions{
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Title: "cbt",
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Mac: application.MacWindow{
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InvisibleTitleBarHeight: 50,
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Backdrop: application.MacBackdropTranslucent,
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TitleBar: application.MacTitleBarHiddenInset,
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},
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BackgroundColour: application.NewRGB(27, 38, 54),
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URL: "/",
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})
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// Create a goroutine that emits an event containing the current time every second.
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// The frontend can listen to this event and update the UI accordingly.
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go func() {
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for {
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now := time.Now().Format(time.RFC1123)
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app.Event.Emit("time", now)
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time.Sleep(time.Second)
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}
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}()
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// Run the application. This blocks until the application has been exited.
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err := app.Run()
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// If an error occurred while running the application, log it and exit.
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if err != nil {
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log.Fatal(err)
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}
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}
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