0026120: Changing the terminal can potentially lead to data loss

diff --git a/src-db/database/sourcedata/AD_MESSAGE.xml b/src-db/database/sourcedata/AD_MESSAGE.xml
--- a/src-db/database/sourcedata/AD_MESSAGE.xml
+++ b/src-db/database/sourcedata/AD_MESSAGE.xml
@@ -1164,6 +1164,18 @@
 <!--3BCA33D416164025B06CFC2FB62EECD8-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
 <!--3BCA33D416164025B06CFC2FB62EECD8--></AD_MESSAGE>
 
+<!--3C381FAE14A34B05BF8A4AEAF6B60826--><AD_MESSAGE>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <AD_MESSAGE_ID><![CDATA[3C381FAE14A34B05BF8A4AEAF6B60826]]></AD_MESSAGE_ID>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <VALUE><![CDATA[OBPOS_ResetNeededNotSafeTitle]]></VALUE>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <MSGTEXT><![CDATA[The local database needs to be reset, but it contains critical data]]></MSGTEXT>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <MSGTYPE><![CDATA[E]]></MSGTYPE>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <AD_MODULE_ID><![CDATA[FF808181326CC34901326D53DBCF0018]]></AD_MODULE_ID>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
+<!--3C381FAE14A34B05BF8A4AEAF6B60826--></AD_MESSAGE>
+
 <!--3C55FD361FFF4014B0FD1D8949D3C0AF--><AD_MESSAGE>
 <!--3C55FD361FFF4014B0FD1D8949D3C0AF-->  <AD_MESSAGE_ID><![CDATA[3C55FD361FFF4014B0FD1D8949D3C0AF]]></AD_MESSAGE_ID>
 <!--3C55FD361FFF4014B0FD1D8949D3C0AF-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
@@ -1849,6 +1861,18 @@
 <!--5DAE2B63EE904B65A7A328EFA1ADDD43-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
 <!--5DAE2B63EE904B65A7A328EFA1ADDD43--></AD_MESSAGE>
 
+<!--5DB096F170DA46AD83F824F92D088AA2--><AD_MESSAGE>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <AD_MESSAGE_ID><![CDATA[5DB096F170DA46AD83F824F92D088AA2]]></AD_MESSAGE_ID>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <AD_ORG_ID><![CDATA[0]]></AD_ORG_ID>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <ISACTIVE><![CDATA[Y]]></ISACTIVE>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <VALUE><![CDATA[OBPOS_ResetNeededNotSafeMessage]]></VALUE>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <MSGTEXT><![CDATA[The local database needs to be reset, but it contains critical data]]></MSGTEXT>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <MSGTYPE><![CDATA[E]]></MSGTYPE>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <AD_MODULE_ID><![CDATA[FF808181326CC34901326D53DBCF0018]]></AD_MODULE_ID>
+<!--5DB096F170DA46AD83F824F92D088AA2-->  <ISINCLUDEINI18N><![CDATA[N]]></ISINCLUDEINI18N>
+<!--5DB096F170DA46AD83F824F92D088AA2--></AD_MESSAGE>
+
 <!--5E7BE9600B6844FF8CF66009CF0CC415--><AD_MESSAGE>
 <!--5E7BE9600B6844FF8CF66009CF0CC415-->  <AD_MESSAGE_ID><![CDATA[5E7BE9600B6844FF8CF66009CF0CC415]]></AD_MESSAGE_ID>
 <!--5E7BE9600B6844FF8CF66009CF0CC415-->  <AD_CLIENT_ID><![CDATA[0]]></AD_CLIENT_ID>
diff --git a/web/org.openbravo.retail.posterminal/js/login/model/login-model.js b/web/org.openbravo.retail.posterminal/js/login/model/login-model.js
--- a/web/org.openbravo.retail.posterminal/js/login/model/login-model.js
+++ b/web/org.openbravo.retail.posterminal/js/login/model/login-model.js
@@ -584,7 +584,47 @@
 
     hasPayment: function (key) {
       return this.paymentnames[key];
-    }
+    },
+
+    isSafeToResetDatabase: function (callbackIsSafe, callbackIsNotSafe) {
+
+      OB.Dal.find(OB.Model.Order, {
+        hasbeenpaid: 'Y'
+      }, function (models) {
+        if (models.length > 0) {
+          callbackIsNotSafe();
+          return;
+        }
+        OB.Dal.find(OB.Model.CashManagement, {
+          'isbeingprocessed': 'N'
+        }, function (models) {
+          if (models.length > 0) {
+            callbackIsNotSafe();
+            return;
+          }
+          OB.Dal.find(OB.Model.CashUp, {
+            isbeingprocessed: 'Y'
+          }, function (models) {
+            if (models.length > 0) {
+              callbackIsNotSafe();
+              return;
+            }
+
+            OB.Dal.find(OB.Model.ChangedBusinessPartners, null, function (models) {
+              if (models.length > 0) {
+                callbackIsNotSafe();
+                return;
+              }
+              callbackIsSafe();
+            }, callbackIsSafe);
+          }, callbackIsSafe);
+        }, callbackIsSafe);
+      }, callbackIsSafe);
+    },
+
+    databaseCannotBeResetAction: function () {
+      OB.UTIL.showConfirmation.display(OB.I18N.getLabel('OBPOS_ResetNeededNotSafeTitle'), OB.I18N.getLabel('OBPOS_ResetNeededNotSafeMessage', [window.localStorage.getItem('terminalName')]));
+    },
   });
 
   // var modelterminal= ;

diff --git a/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js b/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
--- a/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
+++ b/web/org.openbravo.mobile.core/source/model/ob-terminal-model.js
@@ -344,6 +344,14 @@
     }).go();
   },
 
+  isSafeToResetDatabase: function (callbackIsSafe, callbackIsNotSafe) {
+    callbackIsSafe();
+  },
+
+  databaseCannotBeResetAction: function () {
+    //Will never happen in standard mobile core. Should be overwritten in applications if isSafeToResetDatabase is implemented
+  },
+
   initLocalDB: function (loadQueue, triggerLoadTerminalInfoReady) {
     loadQueue.localDB = false;
 
@@ -383,20 +391,24 @@
         //Will check if terminal id has changed
         if (window.localStorage.getItem('terminalName')) {
           if (window.localStorage.getItem('terminalName') !== OB.MobileApp.model.get('terminalName')) {
-            OB.info('Terminal has been changed. Resetting database and local storage information.');
-            dropTables();
-            window.localStorage.clear();
+            OB.MobileApp.model.isSafeToResetDatabase(function () {
+              OB.info('Terminal has been changed. Resetting database and local storage information.');
+              dropTables();
+              window.localStorage.clear();
+              window.localStorage.setItem('terminalName', OB.MobileApp.model.get('terminalName'));
+            }, OB.MobileApp.model.databaseCannotBeResetAction);
           }
         }
-        window.localStorage.setItem('terminalName', OB.MobileApp.model.get('terminalName'));
         loadQueue.localDB = true;
         triggerLoadTerminalInfoReady();
         return;
       }
-      //Version of the database changed, we need to drop the tables so they can be created again
-      dropTables();
-      loadQueue.localDB = true;
-      triggerLoadTerminalInfoReady();
+      OB.MobileApp.model.isSafeToResetDatabase(function () {
+        //Version of the database changed, we need to drop the tables so they can be created again
+        dropTables();
+        loadQueue.localDB = true;
+        triggerLoadTerminalInfoReady();
+      }, OB.MobileApp.model.databaseCannotBeResetAction);
     });
 
     // exposing DB globally