Remove old click template

click.templ

@@ -1,15 +0,0 @@
-package main
-
-import "fmt"
-
-func plural(singular, plural string, count uint) string {
-    if count == 1 {
-        return singular
-    } else {
-        return plural
-    }
-}
-
-templ Click(clicks uint) {
-  <div>The button has been clicked { fmt.Sprintf("%d", clicks) }{ " " }{ plural("time", "times", clicks) }.</div>
-}

click_templ.go

@@ -1,80 +0,0 @@
-// Code generated by templ@v0.2.304 DO NOT EDIT.
-
-package main
-
-//lint:file-ignore SA4006 This context is only used if a nested component is present.
-
-import "github.com/a-h/templ"
-import "context"
-import "io"
-import "bytes"
-
-// GoExpression
-import "fmt"
-
-func plural(singular, plural string, count uint) string {
-	if count == 1 {
-		return singular
-	} else {
-		return plural
-	}
-}
-
-func Click(clicks uint) templ.Component {
-	return templ.ComponentFunc(func(ctx context.Context, w io.Writer) (err error) {
-		templBuffer, templIsBuffer := w.(*bytes.Buffer)
-		if !templIsBuffer {
-			templBuffer = templ.GetBuffer()
-			defer templ.ReleaseBuffer(templBuffer)
-		}
-		ctx = templ.InitializeContext(ctx)
-		var_1 := templ.GetChildren(ctx)
-		if var_1 == nil {
-			var_1 = templ.NopComponent
-		}
-		ctx = templ.ClearChildren(ctx)
-		// Element (standard)
-		_, err = templBuffer.WriteString("<div>")
-		if err != nil {
-			return err
-		}
-		// Text
-		var_2 := `The button has been clicked `
-		_, err = templBuffer.WriteString(var_2)
-		if err != nil {
-			return err
-		}
-		// StringExpression
-		var var_3 string = fmt.Sprintf("%d", clicks)
-		_, err = templBuffer.WriteString(templ.EscapeString(var_3))
-		if err != nil {
-			return err
-		}
-		// StringExpression
-		var var_4 string = " "
-		_, err = templBuffer.WriteString(templ.EscapeString(var_4))
-		if err != nil {
-			return err
-		}
-		// StringExpression
-		var var_5 string = plural("time", "times", clicks)
-		_, err = templBuffer.WriteString(templ.EscapeString(var_5))
-		if err != nil {
-			return err
-		}
-		// Text
-		var_6 := `.`
-		_, err = templBuffer.WriteString(var_6)
-		if err != nil {
-			return err
-		}
-		_, err = templBuffer.WriteString("</div>")
-		if err != nil {
-			return err
-		}
-		if !templIsBuffer {
-			_, err = io.Copy(w, templBuffer)
-		}
-		return err
-	})
-}

go.mod

@@ -1,5 +1,3 @@
 module ElnuDev/shiritori-go
 
-go 1.20
+go 1.20
-
-require github.com/a-h/templ v0.2.304 // indirect

go.sum

@@ -1,2 +0,0 @@
-github.com/a-h/templ v0.2.304 h1:vIgCNazkW6NiYifFIGYNRfBkoBzOMZMO1NibIayzihE=
-github.com/a-h/templ v0.2.304/go.mod h1:3oc37WS5rpDvFGi6yeknvTKt50xCu67ywQsM43Wr4PU=

main.go

@@ -1,27 +1,53 @@
 package main
 
 import (
-	"context"
+	"fmt"
+	"html/template"
+	"log"
 	"net/http"
-
+	"time"
-	"github.com/a-h/templ"
 )
 
-var clicks uint = 0
+type handler = func(http.ResponseWriter, *http.Request)
 
-func generateHandler(template func() templ.Component, handler func()) func(http.ResponseWriter, *http.Request) {
+func generateHandler(file string, handler func(), data func() any) handler {
+	tmpl := template.Must(template.ParseFiles(fmt.Sprintf("templates/%s", file)))
 	return func(w http.ResponseWriter, r *http.Request) {
-		w.Header().Set("Content-Type", "text/html; charset=utf-8")
-		template().Render(context.Background(), w)
 		handler()
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		tmpl.Execute(w, data())
 	}
 }
 
+func generateSseHandler(handler func(http.ResponseWriter, *http.Request)) handler {
+	return func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/event-stream")
+		w.Header().Set("Cache-Control", "no-cache")
+		w.Header().Set("Connection", "keep-alive")
+		w.WriteHeader(http.StatusOK)
+		handler(w, r)
+	}
+}
+
+func generateCounter() handler {
+	return generateSseHandler(func(w http.ResponseWriter, r *http.Request) {
+		tick := time.Tick(500 * time.Millisecond)
+		ctx := r.Context()
+	outer:
+		for i := 0; ; i++ {
+			select {
+			case <-ctx.Done():
+				break outer
+			case <-tick:
+				fmt.Fprintf(w, "event: count\ndata: <div>%d</div>\n\n", i)
+				w.(http.Flusher).Flush()
+			}
+		}
+	})
+}
+
 func main() {
 	http.Handle("/", http.FileServer(http.Dir("static")))
-	http.HandleFunc("/api/click", generateHandler(
+	http.HandleFunc("/api/counter", generateCounter())
-		func() templ.Component { return Click(clicks) },
+	log.Fatal(http.ListenAndServe(":3333", nil))
-		func() { clicks++ },
-	))
-	http.ListenAndServe(":3333", nil)
 }

shell.nix

@@ -7,6 +7,5 @@ pkgs.mkShell {
   ];
   shellHook = ''
     export PATH="$HOME/go/bin:$PATH"
-    go install github.com/a-h/templ/cmd/templ@latest
   '';
 }

static/index.html

@@ -7,6 +7,6 @@
     <script src="https://unpkg.com/htmx.org@1.9.3"></script>
 </head>
 <body>
-    <button hx-get="/api/click" hx-swap="innerHTML">Click me!</button>
+    <div hx-sse="connect:/api/counter swap:count" hx-swap="beforebegin"></div>
 </body>
 </html>