allow reseting the starting time of a user

admin.py

@@ -26,6 +26,8 @@ Usage:
 - To list users: python admin.py list-users
 - To list classes: python admin.py list-classes
 - To export results: python admin.py export-results
+- To set user starting time: python admin.py set-user-starting-time CLASS_KEY USERNAME TIME
+  The format of time is YYYY-MM-DDTHH:MM or "now" or "0"
 
 Options:
 - -v : print more information
@@ -37,7 +39,7 @@ python admin.py list-users --url-to <KEY>
 """
 
 
-import os, sys
+import os, sys, re
 from datetime import datetime
 import json
 
@@ -70,6 +72,7 @@ action can be
     - create-super-user USERNAME
     - list-classes
     - export-results CLASS_KEY
+    - set-user-starting-time CLASS_KEY USERNAME TIME
     - help  <------------ to display the full help
 '''
 
@@ -82,7 +85,14 @@ if action == 'help':
     print(full_help)
     exit(0)
 
-if action not in ['list-users', 'create-users', 'create-super-user', 'list-classes', 'export-results', 'delete-users', 'help']:
+if action not in ['list-users', 
+                  'create-users', 
+                  'create-super-user', 
+                  'list-classes', 
+                  'export-results', 
+                  'delete-users',
+                  'set-user-starting-time',
+                  'help']:
     print('Invalid action.\n'+usage, file=sys.stderr)
     exit(1)
 
@@ -155,6 +165,8 @@ def sudo_result(data):
 
     elif action == 'delete-users':
         print(data)
+    elif action == 'set-user-starting-time':
+        print(data)
     elif action == 'export-results':
         # print csv
         print('username,started,lastAnswerDate,answers')
@@ -253,6 +265,33 @@ def connected_as(data):
             sio.disconnect()
             exit(1)
         sio.emit('sudo', ('export-results', sys.argv[2]))
+    elif action == 'set-user-starting-time':
+        if len(sys.argv) < 5:
+            print('Usage: python3 admin.py set-user-starting-time <classKey> <username> <time>', file=sys.stderr)
+            print('the format of time is YYYY-MM-DDTHH:MM "now" or "0"', file=sys.stderr)
+            sio.disconnect()
+            exit(1)
+        if sys.argv[4] == 'now':
+            start_time = datetime.now().timestamp()*1_000
+        elif sys.argv[4] == '0':
+            start_time = 0
+        elif re.match(r"^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}$", sys.argv[4]):
+            dt_object = datetime.strptime(sys.argv[4], "%Y-%m-%dT%H:%M")
+            start_time = dt_object.timestamp()*1_000
+        else:
+            print('Invalid time format', file=sys.stderr)
+            print('the format of time is YYYY-MM-DDTHH:MM or "now" or "0"', file=sys.stderr)
+            sio.disconnect()
+            exit(1)
+        sio.emit('sudo', ('set-user-starting-time', {
+                "classKey":     sys.argv[2], 
+                "username":     sys.argv[3], 
+                "startingTime": start_time
+        }))
+    else:
+        print('Invalid action', file=sys.stderr)
+        sio.disconnect()
+        exit(1)
 
 
 printv('connecting to '+API_URL+'...')

server.js

@@ -461,6 +461,28 @@ io.on('connection', function (socket) {
       socket.emit('sudo-result', classes);
       return;
     }
+    if (cmd === 'set-user-starting-time') {
+      if (!options.classKey) {
+        socket.emit('sudo-error', 'no classKey given');
+        return;
+      }
+      if (!options.username) {
+        socket.emit('sudo-error', 'no username given');
+        return;
+      }
+      if (options.startingTime === undefined) {
+        socket.emit('sudo-error', 'no startingTime given');
+        return;
+      }
+
+      const cla = await db.Classes.get(options.classKey);
+      if (!cla) {
+        socket.emit('sudo-error', 'unknown class');
+        return;
+      }
+      let ok = cla.setUserStartingTime(options.username, options.startingTime);
+      socket.emit('sudo-result', ok);
+    }
     if (cmd === 'export-results') {
       let classes = await db.Classes.getAll({ owner_id: socket.user.id });
       let classe = classes.filter(c => c.info.classKey === options);

server/class.js

@@ -205,6 +205,15 @@ X no\n';
 
   }
 
+  setUserStartingTime(username, startingTime) {
+    if (this.info.userInfo[username]) {
+      this.info.userInfo[username].startOfflineTime = startingTime;
+      this.save();
+      return true;
+    }
+    return false;
+  }
+
   connectAdmin(socket) {
     let self = this;
     self.disconnectPreviousClass(socket);
@@ -398,6 +407,9 @@ X no\n';
         }
         self.info.userInfo[socket.user.name].startOfflineTime = Date.now();
         socket.emit('parsedSlides', self.info.slides);
+        if (self.info.answers[socket.id]) {
+          socket.emit('userAnswers', self.info.answers[socket.id]);
+        }
         socket.emit('offlineStartedTime', 0);
         self.save();
       }