X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/18a8614d8008ab352deb04ac3023a12eb4c59f76..1cf4131b9d1c09f413e79265ad2077e2c1c6bbe8:/cmd/mobius-hotline-server/main.go

diff --git a/cmd/mobius-hotline-server/main.go b/cmd/mobius-hotline-server/main.go
index f18ae9d..cf3c5a9 100644
--- a/cmd/mobius-hotline-server/main.go
+++ b/cmd/mobius-hotline-server/main.go
@@ -2,17 +2,25 @@ package main
 
 import (
 	"context"
+	"embed"
+	"encoding/json"
 	"flag"
 	"fmt"
 	"github.com/jhalter/mobius/hotline"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
+	"io"
+	"log"
 	"math/rand"
+	"net/http"
 	"os"
 	"runtime"
 	"time"
 )
 
+//go:embed mobius/config
+var cfgTemplate embed.FS
+
 const (
 	defaultPort = 5500
 )
@@ -23,9 +31,12 @@ func main() {
 	ctx, cancelRoot := context.WithCancel(context.Background())
 
 	basePort := flag.Int("bind", defaultPort, "Bind address and port")
+	statsPort := flag.String("stats-port", "", "Enable stats HTTP endpoint on address and port")
 	configDir := flag.String("config", defaultConfigPath(), "Path to config root")
 	version := flag.Bool("version", false, "print version and exit")
 	logLevel := flag.String("log-level", "info", "Log level")
+	init := flag.Bool("init", false, "Populate the config dir with default configuration")
+
 	flag.Parse()
 
 	if *version {
@@ -44,21 +55,59 @@ func main() {
 	defer func() { _ = l.Sync() }()
 	logger := l.Sugar()
 
+	if *init {
+		if _, err := os.Stat(*configDir + "/config.yaml"); !os.IsNotExist(err) {
+			logger.Fatalw("Init failed.  Existing config directory found: " + *configDir)
+		}
+
+		if err := os.MkdirAll(*configDir, 0750); err != nil {
+			logger.Fatal(err)
+		}
+
+		if err := copyDir("mobius/config", *configDir); err != nil {
+			logger.Fatal(err)
+		}
+	}
+
 	if _, err := os.Stat(*configDir); os.IsNotExist(err) {
 		logger.Fatalw("Configuration directory not found", "path", configDir)
 	}
 
-	hotline.FS = &hotline.OSFileStore{}
-
-	srv, err := hotline.NewServer(*configDir, "", *basePort, logger)
+	srv, err := hotline.NewServer(*configDir, "", *basePort, logger, &hotline.OSFileStore{})
 	if err != nil {
 		logger.Fatal(err)
 	}
 
+	sh := statHandler{hlServer: srv}
+	if *statsPort != "" {
+		http.HandleFunc("/", sh.RenderStats)
+
+		go func(srv *hotline.Server) {
+			// Use the default DefaultServeMux.
+			err = http.ListenAndServe(":"+*statsPort, nil)
+			if err != nil {
+				log.Fatal(err)
+			}
+		}(srv)
+	}
+
 	// Serve Hotline requests until program exit
 	logger.Fatal(srv.ListenAndServe(ctx, cancelRoot))
 }
 
+type statHandler struct {
+	hlServer *hotline.Server
+}
+
+func (sh *statHandler) RenderStats(w http.ResponseWriter, _ *http.Request) {
+	u, err := json.Marshal(sh.hlServer.Stats)
+	if err != nil {
+		panic(err)
+	}
+
+	_, _ = io.WriteString(w, string(u))
+}
+
 func newStdoutCore(level zapcore.Level) zapcore.Core {
 	encoderCfg := zap.NewProductionEncoderConfig()
 	encoderCfg.TimeKey = "timestamp"
@@ -96,3 +145,53 @@ func defaultConfigPath() (cfgPath string) {
 
 	return cfgPath
 }
+
+// TODO: Simplify this mess.  Why is it so difficult to recursively copy a directory?
+func copyDir(src, dst string) error {
+	entries, err := cfgTemplate.ReadDir(src)
+	if err != nil {
+		return err
+	}
+	for _, dirEntry := range entries {
+		if dirEntry.IsDir() {
+			if err := os.MkdirAll(dst+"/"+dirEntry.Name(), 0777); err != nil {
+				panic(err)
+			}
+			subdirEntries, _ := cfgTemplate.ReadDir(src + "/" + dirEntry.Name())
+			for _, subDirEntry := range subdirEntries {
+				f, err := os.Create(dst + "/" + dirEntry.Name() + "/" + subDirEntry.Name())
+				if err != nil {
+					return err
+				}
+
+				srcFile, err := cfgTemplate.Open(src + "/" + dirEntry.Name() + "/" + subDirEntry.Name())
+				if err != nil {
+					return err
+				}
+				_, err = io.Copy(f, srcFile)
+				if err != nil {
+					return err
+				}
+				f.Close()
+			}
+		} else {
+			f, err := os.Create(dst + "/" + dirEntry.Name())
+			if err != nil {
+				return err
+			}
+
+			srcFile, err := cfgTemplate.Open(src + "/" + dirEntry.Name())
+			if err != nil {
+				return err
+			}
+			_, err = io.Copy(f, srcFile)
+			if err != nil {
+				return err
+			}
+			f.Close()
+		}
+
+	}
+
+	return nil
+}