feat: optimization

internal/sink/writer.go

@@ -0,0 +1,38 @@
+package sink
+
+import (
+	"encoding/json"
+	"find-me-internet/internal/model"
+	"os"
+	"sync"
+)
+
+type JSONLWriter struct {
+	file *os.File
+	mu   sync.Mutex
+}
+
+func NewJSONL(path string) (*JSONLWriter, error) {
+	f, err := os.OpenFile(path, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+	if err != nil {
+		return nil, err
+	}
+	return &JSONLWriter{file: f}, nil
+}
+
+func (w *JSONLWriter) Write(p *model.Proxy) error {
+	w.mu.Lock()
+	defer w.mu.Unlock()
+
+	data, err := json.Marshal(p)
+	if err != nil {
+		return err
+	}
+	
+	_, err = w.file.Write(append(data, '\n'))
+	return err
+}
+
+func (w *JSONLWriter) Close() {
+	w.file.Close()
+}