chore: use go generate to create Validate and Merge funcs on RoleConfigs

internal/config/node.go

@@ -1,9 +1,7 @@
 package config
 
 import (
-	"errors"
 	"fmt"
-	"net"
 	"strings"
 )
 
@@ -28,68 +26,16 @@ func (l *LogLevel) UnmarshalText(data []byte) error {
 	}
 }
 
+//go:generate -command roleconfig go run git.wzray.com/homelab/hivemind/internal/codegen/roleconfig
+//go:generate roleconfig -name NodeConfig
 type NodeConfig struct {
 	Hostname string `toml:"hostname"`
 	Address  string `toml:"address"`
 	Port     int    `toml:"port"`
 
-	KeepaliveInterval int      `toml:"keepalive_interval"`
+	KeepaliveInterval int      `toml:"keepalive_interval" gen:"positive"`
 	LogLevel          LogLevel `toml:"log_level"`
 
-	BootstrapMaster string `toml:"bootstrap_master"`
-	ListenOn        string `toml:"listen_on"`
-}
-
-func (c NodeConfig) Validate() error {
-	if c.Address == "" {
-		return errors.New("missing address")
-	}
-
-	if c.Hostname == "" {
-		return errors.New("missing hostname")
-	}
-
-	if c.KeepaliveInterval < 1 {
-		return errors.New("invalid keepalive_interval")
-	}
-
-	if c.ListenOn == "" {
-		return errors.New("missing listen_on")
-	}
-
-	if net.ParseIP(c.ListenOn) == nil {
-		return fmt.Errorf("invalid listen_on: %v", c.ListenOn)
-	}
-
-	return nil
-}
-
-func (c *NodeConfig) Merge(other NodeConfig) {
-	if other.Hostname != "" {
-		c.Hostname = other.Hostname
-	}
-
-	if other.Address != "" {
-		c.Address = other.Address
-	}
-
-	if other.BootstrapMaster != "" {
-		c.BootstrapMaster = other.BootstrapMaster
-	}
-
-	if other.ListenOn != "" {
-		c.ListenOn = other.ListenOn
-	}
-
-	if other.Port != 0 {
-		c.Port = other.Port
-	}
-
-	if other.KeepaliveInterval != 0 {
-		c.KeepaliveInterval = other.KeepaliveInterval
-	}
-
-	if other.LogLevel != "" {
-		c.LogLevel = other.LogLevel
-	}
+	BootstrapMaster string `toml:"bootstrap_master" gen:"no"`
+	ListenOn        string `toml:"listen_on" gen:"ip"`
 }