feat(release): beelloo v0.1

internal/cli/run.go

@@ -0,0 +1,142 @@
+package cli
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"beelloo/internal/invoice"
+	"beelloo/internal/render"
+	"beelloo/internal/server"
+)
+
+func Run(args []string, out io.Writer, errOut io.Writer) int {
+	if len(args) == 0 {
+		usage(errOut)
+		return 2
+	}
+	switch args[0] {
+	case "new":
+		return runNew(args[1:], out, errOut)
+	case "emit":
+		return runBuild(args[1:], out, errOut)
+	case "build":
+		return runBuild(args[1:], out, errOut)
+	case "serve":
+		return runServe(args[1:], out, errOut)
+	case "-h", "--help", "help":
+		usage(out)
+		return 0
+	default:
+		fmt.Fprintf(errOut, "unknown command: %s\n", args[0])
+		usage(errOut)
+		return 2
+	}
+}
+
+func usage(w io.Writer) {
+	fmt.Fprintln(w, "Usage:")
+	fmt.Fprintln(w, "  beelloo new <file.md>")
+	fmt.Fprintln(w, "  beelloo build <file.md> [--css=style.css]")
+	fmt.Fprintln(w, "  beelloo serve <file.md> [--addr=127.0.0.1:0] [--css=style.css]")
+}
+
+func runNew(args []string, out io.Writer, errOut io.Writer) int {
+	if len(args) != 1 {
+		fmt.Fprintln(errOut, "new requires a single file path")
+		return 2
+	}
+	path := args[0]
+	if err := os.WriteFile(path, []byte(invoice.ScaffoldMarkdown), 0644); err != nil {
+		fmt.Fprintf(errOut, "failed to write scaffold: %v\n", err)
+		return 1
+	}
+	fmt.Fprintf(out, "scaffold written to %s\n", path)
+	return 0
+}
+
+func runBuild(args []string, out io.Writer, errOut io.Writer) int {
+	if len(args) < 1 {
+		fmt.Fprintln(errOut, "build requires a markdown file path")
+		return 2
+	}
+	path := args[0]
+	cssPath := ""
+	for _, arg := range args[1:] {
+		if strings.HasPrefix(arg, "--css=") {
+			cssPath = strings.TrimPrefix(arg, "--css=")
+		}
+	}
+
+	file, err := os.Open(path)
+	if err != nil {
+		fmt.Fprintf(errOut, "failed to open %s: %v\n", path, err)
+		return 1
+	}
+	defer file.Close()
+
+	doc, err := invoice.ParseMarkdown(file)
+	if err != nil {
+		fmt.Fprintf(errOut, "parse error: %v\n", err)
+		return 1
+	}
+	if err := invoice.Validate(&doc); err != nil {
+		fmt.Fprintf(errOut, "validation error: %v\n", err)
+		return 1
+	}
+
+	html, err := renderWithCSS(doc, cssPath)
+	if err != nil {
+		fmt.Fprintf(errOut, "render error: %v\n", err)
+		return 1
+	}
+
+	outputPath := strings.TrimSuffix(path, filepath.Ext(path)) + ".html"
+	if err := os.WriteFile(outputPath, []byte(html), 0644); err != nil {
+		fmt.Fprintf(errOut, "failed to write html: %v\n", err)
+		return 1
+	}
+	fmt.Fprintf(out, "HTML generated at %s\n", outputPath)
+	return 0
+}
+
+func runServe(args []string, out io.Writer, errOut io.Writer) int {
+	if len(args) < 1 {
+		fmt.Fprintln(errOut, "serve requires a markdown file path")
+		return 2
+	}
+	path := args[0]
+	addr := "127.0.0.1:0"
+	cssPath := ""
+	for _, arg := range args[1:] {
+		if strings.HasPrefix(arg, "--addr=") {
+			addr = strings.TrimPrefix(arg, "--addr=")
+		}
+		if strings.HasPrefix(arg, "--css=") {
+			cssPath = strings.TrimPrefix(arg, "--css=")
+		}
+	}
+	err := server.Serve(server.Config{
+		Addr:    addr,
+		MDPath:  path,
+		CSSPath: cssPath,
+	}, out, errOut)
+	if err != nil {
+		fmt.Fprintf(errOut, "%v\n", err)
+		return 1
+	}
+	return 0
+}
+
+func renderWithCSS(doc invoice.Document, cssPath string) (string, error) {
+	if cssPath == "" {
+		return render.RenderHTML(doc)
+	}
+	css, err := os.ReadFile(cssPath)
+	if err != nil {
+		return "", err
+	}
+	return render.RenderHTMLWithCSS(doc, string(css))
+}