Implemented controller method and helper object to find matching transactions

app/Http/Controllers/RuleController.php

@@ -25,6 +25,7 @@ use Response;
 use Session;
 use URL;
 use View;
+use FireflyIII\Rules\TransactionMatcher;
 
 /**
  * Class RuleController
@@ -333,6 +334,74 @@ class RuleController extends Controller
         return redirect(session('rules.rule.edit.url'));
     }
 
+    /**
+     * @return \Illuminate\View\View
+     */
+    public function testTriggers() {
+        // Create a list of triggers
+        $triggers = $this->getTriggerList();
+    
+        // We start searching for transactions. For performance reasons, there are limits
+        // to the search: a maximum number of results and a maximum number of transactions
+        // to search in
+        // TODO: Make these values configurable
+        $maxResults = 50;
+        $maxTransactionsToSearchIn = 1000;
+    
+        // Dispatch the actual work to a matched object
+        $matchingTransactions = 
+            (new TransactionMatcher($triggers))
+                ->setTransactionLimit($maxTransactionsToSearchIn)
+                ->findMatchingTransactions($maxResults);
+    
+        // Warn the user if only a subset of transactions is returned
+        if(count( $matchingTransactions ) == $maxResults) {
+            $warning = trans('firefly.warning_transaction_subset', [ 'max_num_transactions' => $maxResults ] );
+        } else if(count($matchingTransactions) == 0){
+            $warning = trans('firefly.warning_no_matching_transactions', [ 'num_transactions' => $maxTransactionsToSearchIn ] );
+        } else {
+            $warning = "";
+        }
+    
+        // Return json response
+        $view = view('list.journals-tiny', [ 'transactions' => $matchingTransactions ])->render();
+    
+        return Response::json(['html' => $view, 'warning' => $warning ]);
+    }    
+    
+    /**
+     * Returns a list of triggers as provided in the URL
+     * @return array
+     */
+    protected function getTriggerList() {
+        $triggers = [];
+        $order = 1;
+        $data = [
+            'rule-triggers'       => Input::get('rule-trigger'),
+            'rule-trigger-values' => Input::get('rule-trigger-value'),
+            'rule-trigger-stop'   => Input::get('rule-trigger-stop'),
+        ];
+    
+        foreach ($data['rule-triggers'] as $index => $trigger) {
+            $value          = $data['rule-trigger-values'][$index];
+            $stopProcessing = isset($data['rule-trigger-stop'][$index]) ? true : false;
+    
+            // Create a new trigger object
+            $ruleTrigger = new RuleTrigger;
+            $ruleTrigger->order           = $order;
+            $ruleTrigger->active          = 1;
+            $ruleTrigger->stop_processing = $stopProcessing;
+            $ruleTrigger->trigger_type    = $trigger;
+            $ruleTrigger->trigger_value   = $value;
+    
+            // Store in list
+            $triggers[] = $ruleTrigger;
+            $order++;
+        }
+    
+        return $triggers;
+    }    
+    
     private function createDefaultRule()
     {
         /** @var RuleRepositoryInterface $repository */

app/Http/routes.php

@@ -272,7 +272,8 @@ Route::group(
     Route::get('/rules/rules/down/{rule}', ['uses' => 'RuleController@down', 'as' => 'rules.rule.down']);
     Route::get('/rules/rules/edit/{rule}', ['uses' => 'RuleController@edit', 'as' => 'rules.rule.edit']);
     Route::get('/rules/rules/delete/{rule}', ['uses' => 'RuleController@delete', 'as' => 'rules.rule.delete']);
-
+    Route::get('/rules/rules/test_triggers', ['uses' => 'RuleController@testTriggers', 'as' => 'rules.rule.test_triggers']);
+    
     // rules POST:
     Route::post('/rules/rules/trigger/reorder/{rule}', ['uses' => 'RuleController@reorderRuleTriggers']);
     Route::post('/rules/rules/action/reorder/{rule}', ['uses' => 'RuleController@reorderRuleActions']);