reflective [WIP]

Signed-off-by: Alejandro Mery <amery@jpi.io>

pkg/ceph/config_parser.go

@@ -2,10 +2,9 @@ package ceph
 
 import (
 	"io/fs"
-	"net/netip"
+	"log"
 
 	"asciigoat.org/ini/basic"
-	"asciigoat.org/ini/parser"
 
 	"darvaza.org/core"
 )
@@ -36,61 +35,27 @@ func loadGlobalConfSection(out *Config, src *basic.Section) error {
 	return nil
 }
 
-// revive:disable:cyclomatic
-// revive:disable:cognitive-complexity
-
 func loadGlobalConfField(cfg *GlobalConfig, field basic.Field) error {
-	// revive:enable:cyclomatic
-	// revive:enable:cognitive-complexity
+	log.Printf("%s[%q] = %q", "global", field.Key, field.Value)
 
-	// TODO: refactor when asciigoat's ini parser learns to do reflection
+	key, value := field.Key, field.Value
 
-	switch field.Key {
+	switch key {
 	case "fsid":
-		if !core.IsZero(cfg.FSID) {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
-
-		err := cfg.FSID.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		default:
-			return nil
-		}
+		return configFieldHandler(&cfg.FSID, key, value)
 	case "mon_host":
-		entries, _ := parser.SplitCommaArray(field.Value)
-		for _, s := range entries {
-			var addr netip.Addr
-
-			if err := addr.UnmarshalText([]byte(s)); err != nil {
-				return core.Wrap(err, field.Key)
-			}
-
-			cfg.MonitorsAddr = append(cfg.MonitorsAddr, addr)
-		}
-		return nil
+		return configFieldHandler(&cfg.MonitorsAddr, key, value)
 	case "mon_initial_members":
-		entries, _ := parser.SplitCommaArray(field.Value)
-		cfg.Monitors = append(cfg.Monitors, entries...)
-		return nil
+		return configFieldHandler(&cfg.Monitors, key, value)
 	case "cluster_network":
-		if !core.IsZero(cfg.ClusterNetwork) {
-			err := core.Wrap(fs.ErrInvalid, "fields before the first section")
-			return err
-		}
-
-		err := cfg.ClusterNetwork.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
+		return configFieldHandler(&cfg.ClusterNetwork, key, value)
 	default:
-			return nil
-		}
+		return core.Wrap(fs.ErrNotExist, "field %q unknown", key)
 	}
-	return nil
 }
 
+func configFieldHandler(vi any, key, value string) error
+
 func newConfigFromDocument(doc *basic.Document) (*Config, error) {
 	var out Config
 

pkg/wireguard/config_parser.go

@@ -2,7 +2,7 @@ package wireguard
 
 import (
 	"io/fs"
-	"strconv"
+	"log"
 
 	"asciigoat.org/ini/basic"
 	"darvaza.org/core"
@@ -50,104 +50,40 @@ func loadPeerConfSection(out *Config, src *basic.Section) error {
 	return nil
 }
 
-// revive:disable:cyclomatic
-// revive:disable:cognitive-complexity
+func configFieldHandler(vi any, key, value string) error
 
 func loadInterfaceConfField(cfg *InterfaceConfig, field basic.Field) error {
-	// revive:enable:cyclomatic
-	// revive:enable:cognitive-complexity
+	log.Printf("%s[%q] = %q", "Interface", field.Key, field.Value)
 
-	// TODO: refactor when asciigoat's ini parser learns to do reflection
-	switch field.Key {
-	case "Address":
-		if !core.IsZero(cfg.Address) {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
+	key, value := field.Key, field.Value
 
-		err := cfg.Address.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		default:
-			return nil
-		}
+	switch key {
+	case "Address":
+		return configFieldHandler(&cfg.Address, key, value)
 	case "PrivateKey":
-		if !core.IsZero(cfg.PrivateKey) {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
-
-		err := cfg.PrivateKey.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		default:
-			return nil
-		}
+		return configFieldHandler(&cfg.PrivateKey, key, value)
 	case "ListenPort":
-		if cfg.ListenPort > 0 {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
-
-		u64, err := strconv.ParseUint(field.Value, 10, 16)
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		case u64 == 0:
-			return core.Wrap(fs.ErrInvalid, "invalid %q value", field.Key)
-		default:
-			cfg.ListenPort = uint16(u64)
-			return nil
-		}
+		return configFieldHandler(&cfg.ListenPort, key, value)
 	default:
-		return core.Wrap(fs.ErrInvalid, "unknown field %q", field.Key)
+		return core.Wrap(fs.ErrInvalid, "unknown field %q", key)
 	}
 }
 
-// revive:disable:cyclomatic
-// revive:disable:cognitive-complexity
-
 func loadPeerConfField(cfg *PeerConfig, field basic.Field) error {
-	// revive:enable:cyclomatic
-	// revive:enable:cognitive-complexity
+	log.Printf("%s[%q] = %q", "Peer", field.Key, field.Value)
 
-	switch field.Key {
-	case "PublicKey":
-		if !core.IsZero(cfg.PublicKey) {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
+	key, value := field.Key, field.Value
 
-		err := cfg.PublicKey.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		default:
-			return nil
-		}
+	switch key {
+	case "PublicKey":
+		return configFieldHandler(&cfg.PublicKey, key, value)
 	case "Endpoint":
-		if cfg.Endpoint.String() != "" {
-			return core.Wrap(fs.ErrInvalid, "duplicate field %q", field.Key)
-		}
-
-		err := cfg.Endpoint.UnmarshalText([]byte(field.Value))
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		default:
-			return nil
-		}
+		return configFieldHandler(&cfg.Endpoint, key, value)
 	case "AllowedIPs":
-		s, err := parseAllowedIPs(field.Value)
-		switch {
-		case err != nil:
-			return core.Wrap(err, field.Key)
-		case len(s) > 0:
-			cfg.AllowedIPs = append(cfg.AllowedIPs, s...)
-			return nil
-		}
+		return configFieldHandler(&cfg.AllowedIPs, key, value)
 	default:
 		return core.Wrap(fs.ErrInvalid, "unknown field %q", field.Key)
 	}
-	return nil
 }
 
 func newConfigFromDocument(doc *basic.Document) (*Config, error) {