cmd/pkgserver: add createPackageIndex

cmd/pkgserver/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"cmp"
 	"context"
 	"embed"
 	"fmt"
@@ -8,7 +9,9 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"slices"
 	"syscall"
+	"unique"
 
 	"hakurei.app/command"
 	"hakurei.app/container/check"
@@ -61,16 +64,61 @@ func serveAPI(pi *PackageIndex) func(w http.ResponseWriter, r *http.Request) {
 type SortOrders int
 
 const (
-	NameAscending SortOrders = iota
+	DeclarationDescending SortOrders = iota
+	DeclarationAscending
+	NameAscending
 	NameDescending
+	limitSortOrders
 )
 
-type PackageIndex struct {
+type PackageIndex [limitSortOrders][rosa.PresetUnexportedStart]*PackageIndexEntry
-	sorts [][]*pkg.Artifact
+
+type PackageIndexEntry struct {
+	id          unique.Handle[pkg.ID]
+	name        string
+	description string
+	website     string
+	version     string
+	status      []byte
 }
 
 func createPackageIndex(cache *pkg.Cache, report *rosa.Report) *PackageIndex {
-	return &PackageIndex{}
+	var index PackageIndex
+	var work []PackageIndexEntry
+	for p := range rosa.PresetUnexportedStart {
+		m := rosa.GetMetadata(p)
+		v := rosa.Std.Version(p)
+		a := rosa.Std.Load(p)
+		id := cache.Ident(a)
+		status, n := report.ArtifactOf(id)
+		work[p] = PackageIndexEntry{
+			id:          id,
+			name:        m.Name,
+			description: m.Description,
+			website:     m.Website,
+			version:     v,
+			status:      status[:n],
+		}
+	}
+	for i, p := range work {
+		index[DeclarationAscending][i] = &p
+	}
+	slices.Reverse(work)
+	for i, p := range work {
+		index[DeclarationDescending][i] = &p
+	}
+	slices.SortFunc(work, func(a PackageIndexEntry, b PackageIndexEntry) int {
+		return cmp.Compare(a.name, b.name)
+	})
+	for i, p := range work {
+		index[NameAscending][i] = &p
+	}
+	slices.Reverse(work)
+	for i, p := range work {
+		index[NameDescending][i] = &p
+	}
+
+	return &index
 }
 func main() {
 	log.SetFlags(0)
@@ -99,13 +147,16 @@ func main() {
 		if err != nil {
 			return err
 		}
-		pi := createPackageIndex(cache, report)
+		defer report.HandleAccess(&err)()
-
+		index := createPackageIndex(cache, report)
 		http.HandleFunc("GET /{$}", serveWebUI)
 		http.HandleFunc("GET /favicon.ico", serveStaticContent)
 		http.HandleFunc("GET /static/", serveStaticContent)
-		http.HandleFunc("GET /api/", serveAPI(pi))
+		http.HandleFunc("GET /api/", serveAPI(index))
-		http.ListenAndServe(fmt.Sprintf(":%d", flagPort), nil)
+		err = http.ListenAndServe(fmt.Sprintf(":%d", flagPort), nil)
+		if err != nil {
+			return err
+		}
 		return nil
 	}).Flag(
 		&flagBaseDir,