Always sync full state when SSE connects

Previously only called Sync() on SSE reconnect (detected via last-event-id
header). This caused issues when application code registered contexts for
updates before the SSE connection was established - patches sent to
patchChan could be dropped.

Now always call Sync() when SSE connects, ensuring clients receive the
full current state regardless of what happened before the connection
was established.

Fixes #2

actiontrigger.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strconv"
 
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 // actionTrigger represents a trigger to an event handler fn

configuration.go

@@ -2,17 +2,6 @@ package via
 
 import "github.com/alexedwards/scs/v2"
 
-// DatastarConfig configures a custom Datastar.js script.
-type DatastarConfig struct {
-	// Content is the Datastar.js script content.
-	// If nil, the embedded default is used.
-	Content []byte
-
-	// Path is the URL path where the script is served.
-	// Defaults to "/_datastar.js" if empty.
-	Path string
-}
-
 type LogLevel int
 
 const (
@@ -49,7 +38,11 @@ type Options struct {
 	// passing it (lifetime, cookie settings, store, etc).
 	SessionManager *scs.SessionManager
 
-	// Datastar configures a custom Datastar.js script.
+	// DatastarContent is the Datastar.js script content.
-	// If nil, Via uses its embedded default.
+	// If nil, the embedded default is used.
-	Datastar *DatastarConfig
+	DatastarContent []byte
+
+	// DatastarPath is the URL path where the script is served.
+	// Defaults to "/_datastar.js" if empty.
+	DatastarPath string
 }

context.go

@@ -11,7 +11,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 // Context is the living bridge between Go and the browser.

go.mod

@@ -1,4 +1,4 @@
-module github.com/go-via/via
+module github.com/ryanhamamura/via
 
 go 1.25.4
 
@@ -6,6 +6,7 @@ require maragu.dev/gomponents v1.2.0
 
 require (
 	github.com/DATA-DOG/go-sqlmock v1.5.2
+	github.com/alexedwards/scs/v2 v2.9.0
 	github.com/mattn/go-sqlite3 v1.14.32
 	github.com/starfederation/datastar-go v1.0.3
 	github.com/stretchr/testify v1.10.0
@@ -13,13 +14,10 @@ require (
 
 require (
 	github.com/CAFxX/httpcompression v0.0.9 // indirect
-	github.com/alexedwards/scs/v2 v2.9.0 // indirect
 	github.com/andybalholm/brotli v1.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/klauspost/compress v1.18.0 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -17,11 +17,6 @@ github.com/klauspost/compress v1.16.7/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQs
 github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
 github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/klauspost/pgzip v1.2.6/go.mod h1:Ch1tH69qFZu15pkjo5kYi6mth2Zzwzt50oCQKQE9RUs=
-github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
-github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
-github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
-github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/mattn/go-sqlite3 v1.14.32 h1:JD12Ag3oLy1zQA+BNn74xRgaBbdhbNIDYvQUEuuErjs=
 github.com/mattn/go-sqlite3 v1.14.32/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y=
 github.com/pierrec/lz4/v4 v4.1.18 h1:xaKrnTkyoqfh1YItXl56+6KJNVYWlEEPuAQW9xsplYQ=
@@ -45,9 +40,8 @@ github.com/valyala/gozstd v1.20.1 h1:xPnnnvjmaDDitMFfDxmQ4vpx0+3CdTg2o3lALvXTU/g
 github.com/valyala/gozstd v1.20.1/go.mod h1:y5Ew47GLlP37EkTB+B4s7r6A5rdaeB7ftbl9zoYiIPQ=
 github.com/xyproto/randomstring v1.0.5 h1:YtlWPoRdgMu3NZtP45drfy1GKoojuR7hmRcnhZqKjWU=
 github.com/xyproto/randomstring v1.0.5/go.mod h1:rgmS5DeNXLivK7YprL0pY+lTuhNQW3iGxZ18UQApw/E=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/examples/chatroom/main.go

@@ -3,8 +3,8 @@ package main
 import (
 	"math/rand"
 
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 var (

internal/examples/counter/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 type Counter struct{ Count int }

internal/examples/countercomp/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 func main() {

internal/examples/greeter/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 func main() {

internal/examples/livereload/main.go

@@ -1,9 +1,9 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
 	// "github.com/go-via/via-plugin-picocss/picocss"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 type Counter struct{ Count int }

internal/examples/pathparams/main.go

@@ -3,9 +3,9 @@ package main
 import (
 	"strconv"
 
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
 	// "github.com/go-via/via-plugin-picocss/picocss"
-	. "github.com/go-via/via/h"
+	. "github.com/ryanhamamura/via/h"
 )
 
 func main() {

internal/examples/picocss/main.go

@@ -1,9 +1,9 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
 	// "github.com/go-via/via-plugin-picocss/picocss"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 type Counter struct{ Count int }

internal/examples/plugins/main.go

@@ -4,8 +4,8 @@ import (
 	_ "embed"
 	"net/http"
 
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 // Example of a Via application with a plugin that adds PicoCSS. The plugin

internal/examples/realtimechart/main.go

@@ -5,9 +5,9 @@ import (
 	"math/rand"
 	"time"
 
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
 	// "github.com/go-via/via-plugin-picocss/picocss"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 func main() {

internal/examples/session/main.go

@@ -1,8 +1,8 @@
 package main
 
 import (
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 func main() {

internal/examples/shakespeare/main.go

@@ -6,8 +6,8 @@ import (
 	"log"
 	"time"
 
-	"github.com/go-via/via"
+	"github.com/ryanhamamura/via"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 	_ "github.com/mattn/go-sqlite3"
 )
 

signal.go

@@ -5,7 +5,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 )
 
 // Signal represents a value that is reactive in the browser. Signals

signal_test.go

@@ -4,7 +4,7 @@ import (
 	//	"net/http/httptest"
 	"testing"
 
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 	"github.com/stretchr/testify/assert"
 )
 

via.go

@@ -22,7 +22,7 @@ import (
 	"sync"
 
 	"github.com/alexedwards/scs/v2"
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 	"github.com/starfederation/datastar-go/datastar"
 )
 
@@ -39,10 +39,10 @@ type V struct {
 	documentHeadIncludes      []h.H
 	documentFootIncludes      []h.H
 	devModePageInitFnMap      map[string]func(*Context)
-	sessionManager            *scs.SessionManager
+	sessionManager  *scs.SessionManager
-	datastarPath              string
+	datastarPath    string
-	datastarContent           []byte
+	datastarContent []byte
-	datastarHandlerRegistered bool
+	datastarOnce    sync.Once
 }
 
 func (v *V) logFatal(format string, a ...any) {
@@ -111,13 +111,11 @@ func (v *V) Config(cfg Options) {
 	if cfg.SessionManager != nil {
 		v.sessionManager = cfg.SessionManager
 	}
-	if cfg.Datastar != nil {
+	if cfg.DatastarContent != nil {
-		if cfg.Datastar.Content != nil {
+		v.datastarContent = cfg.DatastarContent
-			v.datastarContent = cfg.Datastar.Content
+	}
-		}
+	if cfg.DatastarPath != "" {
-		if cfg.Datastar.Path != "" {
+		v.datastarPath = cfg.DatastarPath
-			v.datastarPath = cfg.Datastar.Path
-		}
 	}
 }
 
@@ -271,13 +269,11 @@ func (v *V) HTTPServeMux() *http.ServeMux {
 }
 
 func (v *V) ensureDatastarHandler() {
-	if v.datastarHandlerRegistered {
+	v.datastarOnce.Do(func() {
-		return
+		v.mux.HandleFunc("GET "+v.datastarPath, func(w http.ResponseWriter, r *http.Request) {
-	}
+			w.Header().Set("Content-Type", "application/javascript")
-	v.datastarHandlerRegistered = true
+			_, _ = w.Write(v.datastarContent)
-	v.mux.HandleFunc("GET "+v.datastarPath, func(w http.ResponseWriter, r *http.Request) {
+		})
-		w.Header().Set("Content-Type", "application/javascript")
-		_, _ = w.Write(v.datastarContent)
 	})
 }
 
@@ -412,10 +408,6 @@ func New() *V {
 	}
 
 	v.mux.HandleFunc("GET /_sse", func(w http.ResponseWriter, r *http.Request) {
-		isReconnect := false
-		if r.Header.Get("last-event-id") == "via" {
-			isReconnect = true
-		}
 		var sigs map[string]any
 		_ = datastar.ReadSignals(r, &sigs)
 		cID, _ := sigs["via-ctx"].(string)
@@ -440,11 +432,7 @@ func New() *V {
 		v.logDebug(c, "SSE connection established")
 
 		go func() {
-			if isReconnect || v.cfg.DevMode {
+			c.Sync()
-				c.Sync()
-				return
-			}
-			c.SyncSignals()
 		}()
 
 		for {

via_test.go

@@ -5,7 +5,7 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/go-via/via/h"
+	"github.com/ryanhamamura/via/h"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -45,9 +45,7 @@ func TestCustomDatastarContent(t *testing.T) {
 	customScript := []byte("// Custom Datastar Script")
 	v := New()
 	v.Config(Options{
-		Datastar: &DatastarConfig{
+		DatastarContent: customScript,
-			Content: customScript,
-		},
 	})
 	v.Page("/", func(c *Context) {
 		c.View(func() h.H { return h.Div() })
@@ -65,9 +63,7 @@ func TestCustomDatastarContent(t *testing.T) {
 func TestCustomDatastarPath(t *testing.T) {
 	v := New()
 	v.Config(Options{
-		Datastar: &DatastarConfig{
+		DatastarPath: "/assets/datastar.js",
-			Path: "/assets/datastar.js",
-		},
 	})
 	v.Page("/test", func(c *Context) {
 		c.View(func() h.H { return h.Div() })