feat(release): beelloo v0.1

2026-02-11 11:09:45 +01:00
parent 75ad1e7cee
commit 0dc9eda240
26 changed files with 1918 additions and 0 deletions
--- a/internal/server/server.go
+++ b/internal/server/server.go
@ -0,0 +1,119 @@
+package server
+
+import (
+	"fmt"
+	"io"
+	"net"
+	"net/http"
+	"os"
+	"path/filepath"
+	"time"
+
+	"beelloo/internal/invoice"
+	"beelloo/internal/render"
+)
+
+type Config struct {
+	Addr    string
+	MDPath  string
+	CSSPath string
+}
+
+type Result struct {
+	Listener net.Listener
+}
+
+func Serve(cfg Config, out, errOut io.Writer) error {
+	if cfg.Addr == "" {
+		cfg.Addr = "127.0.0.1:0"
+	}
+	cssPath, err := resolveCSSPath(cfg.MDPath, cfg.CSSPath)
+	if err != nil {
+		return err
+	}
+	cfg.CSSPath = cssPath
+
+	listener, err := net.Listen("tcp", cfg.Addr)
+	if err != nil {
+		return fmt.Errorf("failed to listen on %s: %w", cfg.Addr, err)
+	}
+
+	mux := http.NewServeMux()
+	mux.HandleFunc("/style.css", func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Cache-Control", "no-store")
+		w.Header().Set("Pragma", "no-cache")
+		w.Header().Set("Expires", "0")
+		if cfg.CSSPath != "" {
+			http.ServeFile(w, r, cfg.CSSPath)
+			return
+		}
+		css, err := render.DefaultCSS()
+		if err != nil {
+			http.Error(w, "failed to load default css", http.StatusInternalServerError)
+			return
+		}
+		w.Header().Set("Content-Type", "text/css; charset=utf-8")
+		_, _ = w.Write(css)
+	})
+	mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		file, err := os.Open(cfg.MDPath)
+		if err != nil {
+			http.Error(w, "failed to open markdown", http.StatusInternalServerError)
+			return
+		}
+		defer file.Close()
+
+		doc, err := invoice.ParseMarkdown(file)
+		if err != nil {
+			http.Error(w, "parse error: "+err.Error(), http.StatusBadRequest)
+			return
+		}
+		if err := invoice.Validate(&doc); err != nil {
+			http.Error(w, "validation error: "+err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		html, err := render.RenderHTMLWithCSSLink(doc, fmt.Sprintf("/style.css?v=%d", time.Now().UnixNano()))
+		if err != nil {
+			http.Error(w, "render error: "+err.Error(), http.StatusInternalServerError)
+			return
+		}
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		_, _ = w.Write([]byte(html))
+	})
+
+	server := &http.Server{Handler: mux}
+	if cfg.CSSPath != "" {
+		fmt.Fprintf(out, "Using CSS: %s\n", cfg.CSSPath)
+	} else {
+		fmt.Fprintln(out, "Using embedded CSS")
+	}
+	fmt.Fprintf(out, "Serving on http://%s/\n", listener.Addr().String())
+	if err := server.Serve(listener); err != nil && err != http.ErrServerClosed {
+		return fmt.Errorf("server error: %w", err)
+	}
+	return nil
+}
+
+func resolveCSSPath(mdPath, override string) (string, error) {
+	if override != "" {
+		if _, err := os.Stat(override); err != nil {
+			return "", fmt.Errorf("failed to stat css file %s: %w", override, err)
+		}
+		return override, nil
+	}
+	if mdPath == "" {
+		return "", nil
+	}
+	mdDir := filepath.Dir(mdPath)
+	candidates := []string{
+		filepath.Join(mdDir, "style.css"),
+		"style.css",
+	}
+	for _, path := range candidates {
+		if _, err := os.Stat(path); err == nil {
+			return path, nil
+		}
+	}
+	return "", nil
+}