Longevity test- delete backup after n days (#3790)

<!-- PR description-->
Longevity Test- Delete the backups older than n no of days. Currently n's value is 5. 

---

#### Does this PR need a docs update or release note?
- [x] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🤖 Supportability/Tests
#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* https://github.com/alcionai/corso/issues/3679

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [x] ⚡ Unit test

.github/workflows/longevity_test.yml

@@ -3,9 +3,6 @@ on:
   schedule:
     # Run every day at 04:00 GMT (roughly 8pm PST)
     - cron: "0 4 * * *"
-  push:
-    branches:
-      - longetivityTest
   workflow_dispatch:
     inputs:
       user:
@@ -54,22 +51,22 @@ jobs:
         with:
           fetch-depth: 0 # needed to get latest tag
 
-      - name: Get version string
-        id: version
-        run: |
-          echo version=$(git describe --tags --abbrev=0) | tee -a $GITHUB_OUTPUT
-
-      - uses: actions/checkout@v3
-        with:
-          ref: ${{ steps.version.outputs.version }}
-
       - name: Setup Golang with cache
         uses: magnetikonline/action-golang-cache@v4
         with:
           go-version-file: src/go.mod
 
-      - run: go build -o corso
+      - run: go build -o longevity-test ./cmd/longevity_test
 
+      - name: Get version string
+        id: version
+        run: |
+          echo version=$(git describe --tags --abbrev=0) | tee -a $GITHUB_OUTPUT
+
+      - run: git checkout ${{ steps.version.outputs.version }}
+
+      - run: go build -o corso
+      
       - run: mkdir ${CORSO_LOG_DIR}
 
 ##########################################################################################################################################
@@ -194,6 +191,45 @@ jobs:
 
 ##########################################################################################################################################
 
+# Backup Exchange Deletion test
+      - name: Backup Delete exchange test
+        id: delete-exchange-test
+        env:
+          SERVICE: "exchange"
+          DELETION_DAYS: 5
+        run: |
+          set -euo pipefail
+          echo -e "\nDelete Backup exchange \n" >> ${CORSO_LOG_FILE}
+          ./longevity-test
+
+##########################################################################################################################################
+
+# Backup Onedrive Deletion test
+      - name: Backup Delete onedrive test
+        id: delete-onedrive-test
+        env:
+          SERVICE: "onedrive"
+          DELETION_DAYS: 5
+        run: |
+          set -euo pipefail
+          echo -e "\nDelete Backup onedrive \n" >> ${CORSO_LOG_FILE}
+          ./longevity-test
+
+##########################################################################################################################################
+
+# Backup Sharepoint Deletion test
+      - name: Backup Delete Sharepoint test
+        id: delete-sharepoint-test
+        env:
+          SERVICE: "sharepoint"
+          DELETION_DAYS: 5
+        run: |
+          set -euo pipefail
+          echo -e "\nDelete Backup sharepoint \n" >> ${CORSO_LOG_FILE}
+          ./longevity-test
+
+##########################################################################################################################################
+
 # Maintenance test
       - name: Maintenance test Daily
         id: maintenance-test-daily

src/cmd/longevity_test/longevity.go

@@ -0,0 +1,79 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"github.com/alcionai/corso/src/cli/config"
+	"github.com/alcionai/corso/src/cli/utils"
+	"github.com/alcionai/corso/src/pkg/logger"
+	"github.com/alcionai/corso/src/pkg/path"
+	"github.com/alcionai/corso/src/pkg/store"
+)
+
+func main() {
+	var (
+		service path.ServiceType
+		cc      = cobra.Command{}
+	)
+
+	cc.SetContext(context.Background())
+
+	if err := config.InitFunc(&cc, []string{}); err != nil {
+		return
+	}
+
+	switch serviceName := os.Getenv("SERVICE"); serviceName {
+	case "exchange":
+		service = path.ExchangeService
+	case "onedrive":
+		service = path.OneDriveService
+	case "sharepoint":
+		service = path.SharePointService
+	default:
+		fatal(cc.Context(), "unknown service", nil)
+	}
+
+	r, _, _, err := utils.GetAccountAndConnect(cc.Context(), service, nil)
+	if err != nil {
+		fatal(cc.Context(), "unable to connect account", err)
+	}
+
+	defer r.Close(cc.Context())
+
+	backups, err := r.BackupsByTag(cc.Context(), store.Service(service))
+	if err != nil {
+		fatal(cc.Context(), "unable to find backups", err)
+	}
+
+	days, err := strconv.Atoi(os.Getenv("DELETION_DAYS"))
+	if err != nil {
+		fatal(cc.Context(), "invalid no of days provided", nil)
+	}
+
+	for _, backup := range backups {
+		if backup.StartAndEndTime.CompletedAt.Before(time.Now().AddDate(0, 0, -days)) {
+			if err := r.DeleteBackup(cc.Context(), backup.ID.String()); err != nil {
+				fatal(cc.Context(), "deleting backup", err)
+			}
+
+			logAndPrint(cc.Context(), "Deleted backup %s", backup.ID.String())
+		}
+	}
+}
+
+func fatal(ctx context.Context, msg string, err error) {
+	logger.CtxErr(ctx, err).Error("test failure: " + msg)
+	fmt.Println(msg+": ", err)
+	os.Exit(1)
+}
+
+func logAndPrint(ctx context.Context, tmpl string, vs ...any) {
+	logger.Ctx(ctx).Infof(tmpl, vs...)
+	fmt.Printf(tmpl+"\n", vs...)
+}