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