small restructuring in preparation for something

lib/misc/init.go

@@ -0,0 +1,41 @@
+package misc
+
+import (
+	"fmt"
+	"io"
+	"sync"
+
+	"github.com/maid-zone/soundcloak/lib/cfg"
+	"github.com/valyala/fasthttp"
+)
+
+var prpool = sync.Pool{
+	New: func() any {
+		return &ProxyReader{}
+	},
+}
+
+func AcquireProxyReader() *ProxyReader {
+	return prpool.Get().(*ProxyReader)
+}
+
+type ProxyReader struct {
+	Reader io.Reader
+	Resp   *fasthttp.Response
+}
+
+func (pr *ProxyReader) Read(p []byte) (int, error) {
+	return pr.Reader.Read(p)
+}
+
+func (pr *ProxyReader) Close() error {
+	defer fasthttp.ReleaseResponse(pr.Resp)
+	defer prpool.Put(pr)
+	return pr.Resp.CloseBodyStream()
+}
+
+func Log(what ...any) {
+	if cfg.Debug {
+		fmt.Println(what...)
+	}
+}