refactor: change InitUnmarshaller to accept a variable number of metadata types, see if any match, and return what was found

go.sum

@@ -1,4 +1,5 @@
 github.com/benbjohnson/clock v1.3.0 h1:ip6w0uFQkncKQ979AypyG0ER7mqUSBdKLOgAle/AT8A=
+github.com/benbjohnson/clock v1.3.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -20,6 +21,7 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
 github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/mr-tron/base58 v1.1.0 h1:Y51FGVJ91WBqCEabAi5OPUz38eAx8DakuAm5svLcsfQ=
 github.com/mr-tron/base58 v1.1.0/go.mod h1:xcD2VGqlgYjBdcBLw+TuYLr8afG+Hj8g2eTVqeSzSU8=
 github.com/multiformats/go-base32 v0.0.3 h1:tw5+NhuwaOjJCC5Pp82QuXbrmLzWg7uxlMFp8Nq/kkI=
@@ -53,11 +55,13 @@ go.sia.tech/jape v0.11.1 h1:M7IP+byXL7xOqzxcHUQuXW+q3sYMkYzmMlMw+q8ZZw0=
 go.sia.tech/jape v0.11.1/go.mod h1:4QqmBB+t3W7cNplXPj++ZqpoUb2PeiS66RLpXmEGap4=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/dig v1.17.0 h1:5Chju+tUvcC+N7N6EV08BJz41UZuO3BmHcN4A287ZLI=
 go.uber.org/dig v1.17.0/go.mod h1:rTxpf7l5I0eBTlE6/9RL+lDybC7WFwY2QH55ZSjy1mU=
 go.uber.org/fx v1.20.1 h1:zVwVQGS8zYvhh9Xxcu4w1M6ESyeMzebzj2NbSayZ4Mk=
 go.uber.org/fx v1.20.1/go.mod h1:iSYNbHf2y55acNCwCXKx7LbWb5WG1Bnue5RDXz1OREg=
 go.uber.org/goleak v1.2.0 h1:xqgm/S+aQvhWFTtR0XK3Jvg7z8kGV8P4X14IzwN3Eqk=
+go.uber.org/goleak v1.2.0/go.mod h1:XJYK+MuIchqpmGmUSAzotztawfKvYLUIgg7guXrwVUo=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
 go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
@@ -69,6 +73,7 @@ golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17 h1:3MTrJm4PyNL9NBqvYDSj3DHl4
 golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17/go.mod h1:lgLbSvA5ygNOMpwM/9anMpWVlVJ7Z+cHWq/eFuinpGE=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.8.0 h1:LUYupSeNrTNCGzR/hVBk2NHZO4hXcVaW1k4Qx7rjPx8=
+golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=

metadata/directory.go

@@ -49,7 +49,7 @@ func (dm *DirectoryMetadata) EncodeMsgpack(enc *msgpack.Encoder) error {
 }
 
 func (dm *DirectoryMetadata) DecodeMsgpack(dec *msgpack.Decoder) error {
-	err := serialize.InitUnmarshaller(types.MetadataTypeDirectory, dec)
+	_, err := serialize.InitUnmarshaller(dec, types.MetadataTypeDirectory)
 	if err != nil {
 		return err
 	}

metadata/web_app.go

@@ -64,7 +64,7 @@ func (wm *WebAppMetadata) EncodeMsgpack(enc *msgpack.Encoder) error {
 }
 
 func (wm *WebAppMetadata) DecodeMsgpack(dec *msgpack.Decoder) error {
-	err := serialize.InitUnmarshaller(types.MetadataTypeWebApp, dec)
+	_, err := serialize.InitUnmarshaller(dec, types.MetadataTypeWebApp)
 	if err != nil {
 		return err
 	}

serialize/seralizer.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"git.lumeweb.com/LumeWeb/libs5-go/types"
 	"github.com/vmihailenco/msgpack/v5"
+	"slices"
 )
 
 func InitMarshaller(kind types.MetadataType, enc *msgpack.Encoder) error {
@@ -19,24 +20,29 @@ func InitMarshaller(kind types.MetadataType, enc *msgpack.Encoder) error {
 	return nil
 }
 
-func InitUnmarshaller(kind types.MetadataType, enc *msgpack.Decoder) error {
+func InitUnmarshaller(enc *msgpack.Decoder, kinds ...types.MetadataType) (types.MetadataType, error) {
 	val, err := enc.DecodeUint8()
 	if err != nil {
-		return err
+		return 0, err
 	}
 
 	if val != types.MetadataMagicByte {
-		return errors.New("Invalid magic byte")
+		return 0, errors.New("Invalid magic byte")
 	}
 
 	val, err = enc.DecodeUint8()
 	if err != nil {
-		return err
+		return 0, err
 	}
 
-	if val != uint8(kind) {
+	convertedKinds := make([]uint8, len(kinds))
-		return errors.New("Invalid metadata type")
+	for i, v := range kinds {
+		convertedKinds[i] = uint8(v)
 	}
 
-	return nil
+	if !slices.Contains(convertedKinds, val) {
+		return 0, errors.New("Invalid metadata type")
+	}
+
+	return types.MetadataType(val), nil
 }