From c8d107f98a3b53a4bc9ca32a484968d915d61e92 Mon Sep 17 00:00:00 2001
From: Dmitriy Kalinin <2e3s19@gmail.com>
Date: Thu, 3 Nov 2016 03:50:27 +0600
Subject: [PATCH] Text format for the backup

No need to keep the JSON just to be able to search. Also fixed the messages order issue: API search returns incorrectly sorted results
---
 src/ExportUserHistory.php | 60 ++++++++++++++++++++++++++++-----------
 1 file changed, 43 insertions(+), 17 deletions(-)

diff --git a/src/ExportUserHistory.php b/src/ExportUserHistory.php
index b250e48..b24ce85 100644
--- a/src/ExportUserHistory.php
+++ b/src/ExportUserHistory.php
@@ -83,6 +83,30 @@ public function execute(InputInterface $input, OutputInterface $output)
         }
     }
 
+    /**
+     * @param $file Resource backup file
+     * @param array $result History search result items
+     */
+    private function writeData($file, array $result)
+    {
+        usort($result, function ($row1, $row2) {
+            return ($row1['date'] < $row2['date']) ? -1 : 1;
+        });
+        foreach ($result as $row) {
+            if ($row['type'] !== 'message') {
+                continue;
+            }
+            $time = date('Y-m-d H:i:s', strtotime($row['date']));
+            $fromName = $row['from']['name'];
+            $fromMention = $row['from']['mention_name'];
+            fwrite(
+                $file,
+                "{$time} -- {$fromName} (@{$fromMention})" . PHP_EOL
+                . $row['message'] . PHP_EOL
+            );
+        }
+    }
+
     /**
      *
      * @param string $token
@@ -96,10 +120,18 @@ private function exportHistory(string $token, string $user)
         $limit = 1000;
         $offset = 0;
 
+        // Keep windows compatibility
+        $filename = str_replace(':', '-', "{$now}.{$user}.txt");
+
+        $file = fopen("{$this->dir}/{$filename}", 'w');
+        if ($file === false) {
+            throw new RuntimeException("Impossible to write into {$filename}");
+        } else {
+            echo "File [{$filename}] created", PHP_EOL;
+        }
+
         try {
             $data = [];
-            $page = [];
-
             do {
                 echo "Fetching the {$limit} records from {$offset}...", PHP_EOL;
 
@@ -116,30 +148,24 @@ private function exportHistory(string $token, string $user)
                             'max-results' => $limit,
                             'start-index' => $offset,
                             'date' => $now,
+                            'end-date' => null,
                         ],
                     ]
                 );
 
-                $result = json_decode((string) $response->getBody(), true);
-                
+               $result = json_decode((string) $response->getBody(), true);
+
                 if (!empty($result['items'])) {
-                    $page = $result['items'];
-                    $data = array_merge($data, $page);
-                    
+                    $data = array_merge($data, $result['items']);
+
                     $offset += $limit;
                 }
-            } while ($page);
-
-            // Keep windows compatibility
-            $file = str_replace(':', '-', "{$now}.{$user}.json");
-
-            if (file_put_contents("{$this->dir}/{$file}", json_encode($data, JSON_PRETTY_PRINT)) === false) {
-                throw new RuntimeException('Impossible to write the file');
-            }
-            
-            echo "File [{$file}] created", PHP_EOL;
+            } while (!empty($result['items']));
+            $this->writeData($file, $data);
         } catch (ClientException $e) {
             echo $e->getMessage(), PHP_EOL;
         }
+
+        fclose($file);
     }
 }