cmd/pkgserver: add command handler

cmd/pkgserver/main.go

@@ -1,9 +1,20 @@
 package main
 
 import (
+	"context"
 	"embed"
 	"fmt"
+	"log"
 	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"hakurei.app/command"
+	"hakurei.app/container/check"
+	"hakurei.app/internal/pkg"
+	"hakurei.app/internal/rosa"
+	"hakurei.app/message"
 )
 
 //go:generate sh -c "sass ui/static/dark.scss ui/static/dark.css && sass ui/static/light.scss ui/static/light.css && tsc ui/static/index.ts"
@@ -43,13 +54,70 @@ func serveStaticContent(w http.ResponseWriter, r *http.Request) {
 
 	}
 }
-func serveAPI(w http.ResponseWriter, r *http.Request) {
+func serveAPI(pi *PackageIndex) func(w http.ResponseWriter, r *http.Request) {
+	return func(w http.ResponseWriter, r *http.Request) {}
+}
 
+type SortOrders int
+
+const (
+	NameAscending SortOrders = iota
+	NameDescending
+)
+
+type PackageIndex struct {
+	sorts [][]*pkg.Artifact
+}
+
+func createPackageIndex(cache *pkg.Cache, report *rosa.Report) *PackageIndex {
+	return &PackageIndex{}
 }
 func main() {
+	log.SetFlags(0)
+	log.SetPrefix("pkgserver: ")
+
+	var (
+		flagBaseDir string
+		flagPort    uint16
+	)
+
+	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
+	defer stop()
+	msg := message.New(log.Default())
+
+	c := command.New(os.Stderr, log.Printf, "pkgserver", func(args []string) error {
+		reportPath := args[0]
+		baseDir, err := check.NewAbs(flagBaseDir)
+		if err != nil {
+			return err
+		}
+		cache, err := pkg.Open(ctx, msg, 0, baseDir)
+		if err != nil {
+			return err
+		}
+		report, err := rosa.OpenReport(reportPath)
+		if err != nil {
+			return err
+		}
+		pi := createPackageIndex(cache, report)
+
 		http.HandleFunc("GET /{$}", serveWebUI)
 		http.HandleFunc("GET /favicon.ico", serveStaticContent)
 		http.HandleFunc("GET /static/", serveStaticContent)
-	http.HandleFunc("GET /api/", serveAPI)
-	http.ListenAndServe(":8067", nil)
+		http.HandleFunc("GET /api/", serveAPI(pi))
+		http.ListenAndServe(fmt.Sprintf(":%d", flagPort), nil)
+		return nil
+	}).Flag(
+		&flagBaseDir,
+		"b", command.StringFlag(""),
+		"base directory for cache",
+	).Flag(
+		&flagPort,
+		"p", command.IntFlag(8067),
+		"http listen port",
+	)
+	c.MustParse(os.Args[1:], func(e error) {
+		log.Fatal(e)
+	})
+
 }