Port

internal/config/config.go

@@ -0,0 +1,58 @@
+package config
+
+import (
+	"bufio"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	OSC OSCConfig
+}
+
+type OSCConfig struct {
+	Host string
+	Port int
+}
+
+func Load(path string) (*Config, error) {
+	cfg := &Config{OSC: OSCConfig{Host: "127.0.0.1", Port: 9001}}
+	file, err := os.Open(path)
+	if err != nil {
+		return cfg, nil
+	}
+	defer file.Close()
+
+	var section string
+	scanner := bufio.NewScanner(file)
+	for scanner.Scan() {
+		line := strings.TrimSpace(scanner.Text())
+		if line == "" || strings.HasPrefix(line, "#") {
+			continue
+		}
+		if strings.HasPrefix(line, "[") && strings.HasSuffix(line, "]") {
+			section = strings.Trim(line, "[]")
+			continue
+		}
+		parts := strings.SplitN(line, "=", 2)
+		if len(parts) != 2 {
+			continue
+		}
+		key := strings.TrimSpace(parts[0])
+		val := strings.TrimSpace(parts[1])
+		val = strings.Trim(val, "\"'")
+		if section == "osc" {
+			switch key {
+			case "host":
+				cfg.OSC.Host = val
+			case "port":
+				if n, err := strconv.Atoi(val); err == nil {
+					cfg.OSC.Port = n
+				}
+			}
+		}
+	}
+	return cfg, scanner.Err()
+}
+

internal/config/config_test.go

@@ -0,0 +1,33 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestLoadDefaultsWhenMissing(t *testing.T) {
+	cfg, err := Load("does-not-exist.toml")
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if cfg.OSC.Host != "127.0.0.1" || cfg.OSC.Port != 9001 {
+		t.Fatalf("unexpected defaults: %+v", cfg.OSC)
+	}
+}
+
+func TestLoadOSCValues(t *testing.T) {
+	dir := t.TempDir()
+	path := filepath.Join(dir, "config.toml")
+	if err := os.WriteFile(path, []byte("[osc]\nhost = \"0.0.0.0\"\nport = 9002\n"), 0o600); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	cfg, err := Load(path)
+	if err != nil {
+		t.Fatalf("Load returned error: %v", err)
+	}
+	if cfg.OSC.Host != "0.0.0.0" || cfg.OSC.Port != 9002 {
+		t.Fatalf("unexpected values: %+v", cfg.OSC)
+	}
+}
+