more initial changes

internal/syncer/syncer.go

@@ -0,0 +1,81 @@
+package syncer
+
+import (
+    "bytes"
+    "fmt"
+    "log"
+    "os/exec"
+    "path/filepath"
+
+    "mediawatcher/internal/classifier"
+    "mediawatcher/internal/config"
+)
+
+type Syncer struct {
+    cfg *config.SyncConfig
+}
+
+func New(cfg *config.SyncConfig) *Syncer {
+    if cfg == nil || !cfg.Enabled {
+        return nil
+    }
+    return &Syncer{cfg: cfg}
+}
+
+func (s *Syncer) Sync(res classifier.Result) {
+    if s == nil || !s.cfg.Enabled {
+        return
+    }
+
+    for _, t := range s.cfg.Targets {
+        if err := s.syncToTarget(t, res); err != nil {
+            log.Printf("[sync] error syncing to %s: %v", t.Host, err)
+        }
+    }
+}
+
+func (s *Syncer) syncToTarget(t config.RsyncTarget, res classifier.Result) error {
+    if t.Host == "" || t.DestBase == "" {
+        return fmt.Errorf("invalid target config: host and dest_base required")
+    }
+
+    user := t.User
+    if user == "" {
+        user = "media"
+    }
+    port := t.Port
+    if port == 0 {
+        port = 22
+    }
+
+    // Recreate relative dest under DestBase
+    rel, err := filepath.Rel(res.DestDir, filepath.Join(res.DestDir, res.DestName))
+    if err != nil {
+        rel = res.DestName
+    }
+
+    remoteDir := t.DestBase
+    remote := fmt.Sprintf("%s@%s:%s/", user, t.Host, remoteDir)
+
+    args := []string{"-avh"}
+    if port != 22 {
+        args = append(args, "-e", fmt.Sprintf("ssh -p %d", port))
+    }
+    args = append(args, t.ExtraArgs...)
+    args = append(args, filepath.Join(res.DestDir, res.DestName), remote)
+
+    log.Printf("[sync] rsync %v", args)
+
+    cmd := exec.Command(s.cfg.RsyncBinary, args...)
+    var stdout, stderr bytes.Buffer
+    cmd.Stdout = &stdout
+    cmd.Stderr = &stderr
+
+    if err := cmd.Run(); err != nil {
+        log.Printf("[sync] stdout: %s", stdout.String())
+        log.Printf("[sync] stderr: %s", stderr.String())
+        return fmt.Errorf("rsync failed: %w", err)
+    }
+
+    return nil
+}