Phase 6

2026-04-25 22:56:09 +02:00
parent 8b548ba1c2
commit 986f6cd6d8
85 changed files with 11479 additions and 5050 deletions
@@ -0,0 +1,129 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/evanw/esbuild/pkg/api"
+)
+
+func main() {
+	// Determine repo root.
+	// When invoked via `go generate` from web/, cwd is web/ so we look for go.mod
+	// to find the actual module root.
+	root, err := findModuleRoot()
+	if err != nil {
+		panic(err)
+	}
+
+	// Verify vendor files exist
+	vendorFiles := []string{
+		filepath.Join(root, "web", "vendor", "preact.mjs"),
+		filepath.Join(root, "web", "vendor", "preact-hooks.mjs"),
+		filepath.Join(root, "web", "vendor", "uplot.esm.js"),
+		filepath.Join(root, "web", "vendor", "uplot.css"),
+		filepath.Join(root, "web", "vendor", "echarts.esm.js"),
+	}
+	for _, f := range vendorFiles {
+		if _, err := os.Stat(f); os.IsNotExist(err) {
+			fmt.Fprintf(os.Stderr, "error: vendor file missing: %s\n", f)
+			fmt.Fprintf(os.Stderr, "Run the following to download vendor files:\n")
+			fmt.Fprintf(os.Stderr, "  mkdir -p web/vendor\n")
+			fmt.Fprintf(os.Stderr, "  curl -sL https://cdn.jsdelivr.net/npm/preact@10.24.3/dist/preact.module.js -o web/vendor/preact.mjs\n")
+			fmt.Fprintf(os.Stderr, "  curl -sL https://cdn.jsdelivr.net/npm/preact@10.24.3/hooks/dist/hooks.module.js -o web/vendor/preact-hooks.mjs\n")
+			fmt.Fprintf(os.Stderr, "  curl -sL https://cdn.jsdelivr.net/npm/uplot@1.6.32/dist/uPlot.esm.js -o web/vendor/uplot.esm.js\n")
+			fmt.Fprintf(os.Stderr, "  curl -sL https://cdn.jsdelivr.net/npm/uplot@1.6.32/dist/uPlot.min.css -o web/vendor/uplot.css\n")
+			fmt.Fprintf(os.Stderr, "  curl -sL https://cdn.jsdelivr.net/npm/echarts@5.5.1/dist/echarts.esm.min.js -o web/vendor/echarts.esm.js\n")
+			os.Exit(1)
+		}
+	}
+
+	// Clean + create dist
+	distDir := filepath.Join(root, "web", "dist")
+	os.RemoveAll(distDir)
+	os.MkdirAll(distDir, 0o755)
+
+	result := api.Build(api.BuildOptions{
+		EntryPoints: []string{filepath.Join(root, "web", "src", "main.tsx")},
+		Bundle:      true,
+		Outdir:      distDir,
+		Format:      api.FormatESModule,
+		Target:      api.ES2020,
+		JSX:         api.JSXTransform,
+		JSXFactory:  "h",
+		JSXFragment: "Fragment",
+		MinifyWhitespace:  true,
+		MinifyIdentifiers: true,
+		MinifySyntax:      true,
+		Alias: map[string]string{
+			"preact":       filepath.Join(root, "web", "vendor", "preact.mjs"),
+			"preact/hooks": filepath.Join(root, "web", "vendor", "preact-hooks.mjs"),
+			"uplot":        filepath.Join(root, "web", "vendor", "uplot.esm.js"),
+			"echarts":      filepath.Join(root, "web", "vendor", "echarts.esm.js"),
+		},
+		Loader: map[string]api.Loader{
+			".css": api.LoaderCSS,
+		},
+		Splitting: false,
+		Write:     true,
+		LogLevel:  api.LogLevelInfo,
+	})
+
+	if len(result.Errors) > 0 {
+		for _, e := range result.Errors {
+			fmt.Fprintf(os.Stderr, "error: %s\n", e.Text)
+		}
+		os.Exit(1)
+	}
+
+	// Copy uPlot CSS and favicon
+	copyFile(filepath.Join(root, "web", "vendor", "uplot.css"), filepath.Join(distDir, "uplot.css"))
+	copyFile(filepath.Join(root, "web", "public", "favicon.svg"), filepath.Join(distDir, "favicon.svg"))
+
+	// Write index.html
+	html := `<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>uopi</title>
+  <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
+  <link rel="stylesheet" href="/uplot.css" />
+  <link rel="stylesheet" href="/main.css" />
+</head>
+<body>
+  <div id="app"></div>
+  <script type="module" src="/main.js"></script>
+</body>
+</html>`
+	os.WriteFile(filepath.Join(distDir, "index.html"), []byte(html), 0o644)
+
+	fmt.Println("Frontend built successfully →", distDir)
+}
+
+func copyFile(src, dst string) {
+	data, err := os.ReadFile(src)
+	if err != nil {
+		return // Skip if missing
+	}
+	os.WriteFile(dst, data, 0o644)
+}
+
+// findModuleRoot walks up from cwd until it finds a go.mod file.
+func findModuleRoot() (string, error) {
+	dir, err := os.Getwd()
+	if err != nil {
+		return "", err
+	}
+	for {
+		if _, err := os.Stat(filepath.Join(dir, "go.mod")); err == nil {
+			return dir, nil
+		}
+		parent := filepath.Dir(dir)
+		if parent == dir {
+			return "", fmt.Errorf("go.mod not found in any parent directory")
+		}
+		dir = parent
+	}
+}