Refactor code structure for improved readability and maintainability

diagrams/backend/backend3.puml

@@ -0,0 +1,39 @@
+@startuml Création de vidéo
+
+actor Client
+participant "videoRoutes" as Routes
+participant "VideoController" as Controller
+participant "Video" as Model
+participant "Measurement" as MeasurementModel
+participant "VideoService" as Service
+participant "FFmpeg" as FFmpeg
+database Database
+
+Client -> Routes: POST /videos
+Routes -> Controller: createVideo(req, res)
+Controller -> Model: createVideo(project_id, measurement_ids, name, resolution, duration)
+Model -> Database: INSERT INTO videos
+Database --> Model: video data
+Model --> Controller: video object
+
+Controller -> Controller: getMeasurementPathList(measurement_ids, project_id)
+Controller -> MeasurementModel: getMeasurementByProjectAndOrderId(projectId, orderId)
+MeasurementModel -> Database: SELECT * FROM measurements
+Database --> MeasurementModel: measurement data
+MeasurementModel --> Controller: measurement object with path
+
+Controller -> Service: createVideoFromImages(project_id, pathList, duration, video_id, resWidth, resHeight)
+Service -> FFmpeg: spawn('ffmpeg', ffmpegArgs)
+Service -> Model: updateVideo(videoId, {status: rendering, progress: 0})
+Model -> Database: UPDATE videos SET status = rendering, progress = 0
+FFmpeg --> Service: stderr progress events
+Service -> Model: updateVideoProgress(videoId, progress, eta)
+Model -> Database: UPDATE videos SET progress = X, eta = Y
+FFmpeg --> Service: process complete
+Service -> Model: updateVideo(videoId, {status: completed, progress: 100})
+Model -> Database: UPDATE videos SET status = completed, progress = 100
+Service --> Controller: videoFile path
+Controller --> Routes: { message: success, id: video.id }
+Routes --> Client: 200 OK - JSON Response
+
+@enduml