Merge branch 'fea-payoffline_split' into develop

# Conflicts:
#	app/src/main/java/com/bgycc/smartcanteen/data/dao/PayDataDao.java

app/src/main/java/com/bgycc/smartcanteen/viewModel/PayOfflineViewModel.java

@@ -74,6 +74,14 @@ public class PayOfflineViewModel extends ViewModel {
         SCTaskExecutor.getInstance().schedule(runnable, REQUEST_DELAY, TimeUnit.MILLISECONDS);
     }
 
+    private void traversalPayOfflineData() {
+        cancelTimeout();
+        TimeoutRunnable timeoutRunnable = new TimeoutRunnable();
+        timeoutFuture = SCTaskExecutor.getInstance().schedule(timeoutRunnable, TIMEOUT, TimeUnit.MILLISECONDS);
+        RequestRunnable runnable = new RequestRunnable();
+        SCTaskExecutor.getInstance().executeOnDiskIO(runnable);
+    }
+
     private void cancelTimeout() {
         if (timeoutFuture == null) return;
         timeoutFuture.cancel(true);
@@ -86,12 +94,7 @@ public class PayOfflineViewModel extends ViewModel {
 
         @Override
         public void onOpen(ServerHandshake data) {
-            // 只要Socket链接成功，则搜索数据库需要离线支付的订单，并发送给后台
-            cancelTimeout();
-            TimeoutRunnable timeoutRunnable = new TimeoutRunnable();
-            timeoutFuture = SCTaskExecutor.getInstance().schedule(timeoutRunnable, TIMEOUT, TimeUnit.MILLISECONDS);
-            RequestRunnable runnable = new RequestRunnable();
-            SCTaskExecutor.getInstance().executeOnDiskIO(runnable);
+            traversalPayOfflineData();
         }
 
         @Override
@@ -105,12 +108,13 @@ public class PayOfflineViewModel extends ViewModel {
             // 1、没有action
             // 2、message为"操作完成"
             LogUtils.d(TAG, "离线支付结果响应: " + original);
-            cancelTimeout();
             ResponseRunnable runnable = new ResponseRunnable(original);
             SCTaskExecutor.getInstance().executeOnDiskIO(runnable);
         }
     };
 
+    // 当支付时WebSocket未链接，则走离线支付流程
+    // 此时直接标记订单为"离线支付"状态
     private class MarkRunnable implements Runnable {
         private PayData payData;
 
@@ -141,14 +145,14 @@ public class PayOfflineViewModel extends ViewModel {
     private class RequestRunnable implements Runnable {
         @Override
         public void run() {
-            // 获取需要离线支付的订单
-            List<PayData> payOfflineData = payDataRepository.queryPayOfflineData();
-            if (payOfflineData == null || payOfflineData.isEmpty()) {
+            List<PayData> payData = payDataRepository.queryPayOfflineData();
+            if (payData == null || payData.isEmpty()) {
                 cancelTimeout();
                 payRequest = null;
+                LogUtils.d(TAG, "所有离线订单处理完毕");
                 return;
             }
-            payRequest = new PayRequest(deviceSN, payOfflineData);
+            payRequest = new PayRequest(deviceSN, payData);
             String requestStr = gson.toJson(payRequest);
             payOfflineState.postValue(new PayOfflineState(PayOfflineState.SEND, requestStr));
             SCWebSocketClient.getInstance().send(requestStr);
@@ -165,12 +169,14 @@ public class PayOfflineViewModel extends ViewModel {
 
         @Override
         public void run() {
+            cancelTimeout();
             if (payRequest == null || payRequest.getData().isEmpty()) {
                 LogUtils.w(TAG, "后台返回离线支付结果，但没有待处理任务");
                 payOfflineState.postValue(new PayOfflineState(PayOfflineState.IDLE));
                 return;
             }
 
+            // 保存服务器返回的结果
             PayResponse payResponse = gson.fromJson(response, PayResponse.class);
             payOfflineState.postValue(new PayOfflineState(PayOfflineState.SUCCESS, payResponse.getMessage()));
             long lastInsertId = payResponseRepository.insertPayResponse(payResponse);
@@ -178,18 +184,18 @@ public class PayOfflineViewModel extends ViewModel {
                 LogUtils.w(TAG, "离线支付结果插入数据库失败: " + payResponse.toString());
             }
 
-            List<PayData> dataList = payRequest.getData();
-            // 设置所有离线支付订单状态为支付成功
+            List<PayData> payData = payRequest.getData();
+            // 设置离线支付订单状态为支付成功
             // 同时在日志中记录所有订单的payCode
             StringBuilder ids = new StringBuilder();
-            for (PayData data : dataList) {
+            for (PayData data : payData) {
                 ids.append(data.getPayCode())
                         .append(",");
                 data.paySuccess();
             }
-            payDataRepository.updatePayData(dataList);
+            payDataRepository.updatePayData(payData);
             if (ids.length() > 0) {
-                LogUtils.d(TAG, "待上传的所有离线支付订单号: " + ids.substring(0, ids.length() - 1));
+                LogUtils.d(TAG, "已上传的离线支付订单号: " + ids.substring(0, ids.length() - 1));
             }
             payRequest = null;
 
@@ -198,10 +204,13 @@ public class PayOfflineViewModel extends ViewModel {
             } catch (Exception ignored) {
             } finally {
                 payOfflineState.postValue(new PayOfflineState(PayOfflineState.IDLE));
+                // 继续处理下一批离线订单
+                traversalPayOfflineData();
             }
         }
     }
 
+    // 离线订单发送到后台超时后，重置其标志位保存到数据库
     private class TimeoutRunnable implements Runnable {
         @Override
         public void run() {