when a job dies, delete images associated with it

broker/testdata/ntgvision_response.json

@@ -1,2 +1,36 @@
 [
+  {
+    "id": 4650337,
+    "sDate": "01/12/22",
+    "sCity": "Advance",
+    "sState": "NC",
+    "sdh": null,
+    "cDate": "01/13/22",
+    "cCity": "Sacramento",
+    "cState": "CA",
+    "cdh": null,
+    "stopCnt": 2,
+    "miles": 578,
+    "weight": 5000,
+    "equip": "Str Truck W/ Lift Gate",
+    "temp": "",
+    "alertReasons": []
+  },
+  {
+    "id": 4650338,
+    "sDate": "01/12/22",
+    "sCity": "Advance",
+    "sState": "NC",
+    "sdh": null,
+    "cDate": "01/13/22",
+    "cCity": "Winston-Salem",
+    "cState": "NC",
+    "cdh": null,
+    "stopCnt": 2,
+    "miles": 378,
+    "weight": 2500,
+    "equip": "107 tall",
+    "temp": "",
+    "alertReasons": []
+  }
 ]

main.go

@@ -321,9 +321,10 @@ func getJobs() ([]broker.Job, error) {
 }
 
 type recordedJob struct {
-	Job      broker.Job
-	SentNS   int64
-	MatrixID string
+	Job            broker.Job
+	SentNS         int64
+	MatrixID       string
+	MatrixImageIDs []string
 }
 
 func updateDeadJobs(jobs []broker.Job) error {
@@ -353,7 +354,14 @@ func updateDeadJobs(jobs []broker.Job) error {
 			if err := message.NewMatrix().Update(recorded.MatrixID, recorded.Job.FormatMultilineTextDead()); err != nil {
 				return err
 			}
-			db.Set(listEntry, nil)
+			if err := db.Set(listEntry, nil); err != nil {
+				return err
+			}
+			for _, imageid := range recorded.MatrixImageIDs {
+				if err := message.NewMatrix().Remove(imageid); err != nil {
+					return err
+				}
+			}
 		}
 	}
 	return nil
@@ -388,13 +396,14 @@ func sendJob(job broker.Job) (bool, error) {
 	if err != nil {
 		return false, err
 	}
-	func() {
+	recordedJob := recordedJob{
+		Job:      job,
+		SentNS:   time.Now().UnixNano(),
+		MatrixID: id,
+	}
+	defer func() {
 		db := config.Get().DB()
-		b, err := json.Marshal(recordedJob{
-			Job:      job,
-			SentNS:   time.Now().UnixNano(),
-			MatrixID: id,
-		})
+		b, err := json.Marshal(recordedJob)
 		if err != nil {
 			logtr.Errorf("failed to marshal recorded job: %v", err)
 			return
@@ -461,24 +470,30 @@ func sendJob(job broker.Job) (bool, error) {
 				uri = fmt.Sprintf("%s&zoom=%d", uri, maps.Pathed.Zoom.Override)
 			}
 			logtr.Debugf("sending pathed image: %s", uri)
-			if err := sender.SendImage(uri); err != nil {
+			pathedid, err := sender.SendImageTracked(uri)
+			if err != nil {
 				return true, err
 			}
+			recordedJob.MatrixImageIDs = append(recordedJob.MatrixImageIDs, pathedid)
 		}
 	}
 	if maps.Pickup {
 		uri := fmt.Sprintf(maps.URIFormat, pickup, pickup)
 		logtr.Debugf("sending pickup image: %s", uri)
-		if err := sender.SendImage(uri); err != nil {
+		pickupid, err := sender.SendImageTracked(uri)
+		if err != nil {
 			return true, err
 		}
+		recordedJob.MatrixImageIDs = append(recordedJob.MatrixImageIDs, pickupid)
 	}
 	if maps.Dropoff {
 		uri := fmt.Sprintf(maps.URIFormat, dropoff, dropoff)
 		logtr.Debugf("sending dropoff image: %s", uri)
-		if err := sender.SendImage(uri); err != nil {
+		dropid, err := sender.SendImageTracked(uri)
+		if err != nil {
 			return true, err
 		}
+		recordedJob.MatrixImageIDs = append(recordedJob.MatrixImageIDs, dropid)
 	}
 	return true, nil
 }

message/matrix.go

@@ -125,6 +125,19 @@ func (m *Matrix) Receive() ([]Message, error) {
 	return messages, nil
 }
 
+func (m Matrix) Remove(id string) error {
+	if m.mock {
+		logtr.Infof("matrix.Remove(%s)", id)
+		return nil
+	}
+	c, err := m.getclient()
+	if err != nil {
+		return err
+	}
+	_, err = c.RedactEvent(m.room, id, &gomatrix.ReqRedact{Reason: "stale"})
+	return err
+}
+
 func (m Matrix) Update(id, text string) error {
 	if m.mock {
 		logtr.Infof("matrix.Update(%s)", text)
@@ -185,36 +198,41 @@ func (m Matrix) SendTracked(text string) (string, error) {
 }
 
 func (m Matrix) SendImage(uri string) error {
+	_, err := m.SendImageTracked(uri)
+	return err
+}
+
+func (m Matrix) SendImageTracked(uri string) (string, error) {
 	if m.mock {
 		logtr.Infof("matrix.SendImage(%s)", uri)
-		return nil
+		return "", nil
 	}
 	response, err := http.Get(uri)
 	if err != nil {
-		return err
+		return "", err
 	}
 	if response.StatusCode != http.StatusOK {
 		b, _ := ioutil.ReadAll(response.Body)
 		response.Body.Close()
-		return fmt.Errorf("failed to get %s: (%d) %s", uri, response.StatusCode, b)
+		return "", fmt.Errorf("failed to get %s: (%d) %s", uri, response.StatusCode, b)
 	}
 	b, err := ioutil.ReadAll(response.Body)
 	response.Body.Close()
 	if err != nil {
-		return err
+		return "", err
 	}
 	c, err := m.getclient()
 	if err != nil {
-		return err
+		return "", err
 	}
 	mediaUpload, err := c.UploadToContentRepo(bytes.NewReader(b), "image/jpeg", int64(len(b)))
 	if err != nil {
-		return err
+		return "", err
 	}
 	publicURI := mediaUpload.ContentURI
 	resp, err := c.SendImage(m.room, "img", publicURI)
 	logtr.Debugf("sent image %s => %s: %+v", uri, publicURI, resp)
-	return err
+	return resp.EventID, err
 }
 
 func SetMatrixContinuation(continuation string) {

message/matrix_test.go

@@ -10,9 +10,11 @@ import (
 	"github.com/google/uuid"
 )
 
-func TestMatrixSend(t *testing.T) {
+func TestMatrixSendDel(t *testing.T) {
 	sender := testMatrix(t)
-	if err := sender.Send("hello world from unittest"); err != nil {
+	if id, err := sender.SendTracked("hello world from unittest"); err != nil {
+		t.Fatal(err)
+	} else if err := sender.Remove(id); err != nil {
 		t.Fatal(err)
 	}
 }