implamented Aroll cuter

handlers/analyze.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
 
 	"aroll/store"
@@ -49,6 +50,8 @@ func AnalyzeHandler(st *store.Store, hub *ws.Hub) http.HandlerFunc {
 		}()
 
 		w.WriteHeader(http.StatusAccepted)
+
+		log.Println("Analyze handler works")
 	}
 }
 

handlers/download.go

@@ -1,6 +1,7 @@
 package handlers
 
 import (
+	"log"
 	"net/http"
 	"os"
 	"strings"
@@ -34,5 +35,7 @@ func DownloadHandler(st *store.Store) http.HandlerFunc {
 		fi, _ := f.Stat()
 		w.Header().Set("Content-Disposition", `attachment; filename="aroll-cut.mp4"`)
 		http.ServeContent(w, r, "aroll-cut.mp4", fi.ModTime(), f)
+
+		log.Println("Download handler works")
 	}
 }

handlers/export.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
 	"os"
 
@@ -57,5 +58,7 @@ func ExportHandler(st *store.Store, hub *ws.Hub) http.HandlerFunc {
 		}()
 
 		w.WriteHeader(http.StatusAccepted)
+
+		log.Println("Export handler works")
 	}
 }

handlers/upload.go

@@ -2,6 +2,7 @@ package handlers
 
 import (
 	"encoding/json"
+	"log"
 	"net/http"
 	"path/filepath"
 
@@ -42,5 +43,7 @@ func UploadHandler(st *store.Store) http.HandlerFunc {
 
 		w.Header().Set("Content-Type", "application/json")
 		json.NewEncoder(w).Encode(map[string]string{"filename": key})
+
+		log.Println("Upload handler works")
 	}
 }

handlers/zoom.go

@@ -0,0 +1,38 @@
+package handlers
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"aroll/transcode"
+	"aroll/ws"
+)
+
+type zoomRequest struct {
+	Zoom     float64 `json:"zoom"`     // 1–100, percentage of total duration to show
+	Center   float64 `json:"center"`   // scroll center in seconds
+	Duration float64 `json:"duration"` // total video duration in seconds
+}
+
+func ZoomHandler(hub *ws.Hub) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPost {
+			http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+
+		var req zoomRequest
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			http.Error(w, "bad JSON: "+err.Error(), http.StatusBadRequest)
+			return
+		}
+
+		h := transcode.HandlerZoom{Center: req.Center}
+		result := h.TimelineZoom(req.Zoom, req.Duration)
+
+		data, _ := json.Marshal(result)
+		hub.Broadcast(data)
+
+		w.WriteHeader(http.StatusAccepted)
+	}
+}