From f6e1c65ea41ab22c22365239842cbb6db1a9dbfa Mon Sep 17 00:00:00 2001
From: Victor Dubiniuk <victor.dubiniuk@gmail.com>
Date: Tue, 6 Aug 2013 18:07:05 +0300
Subject: [PATCH] Ops sync

---
 ajax/otpoll.php | 39 ++++++++++++++++++++++++++-------------
 lib/op.php      | 23 ++++++++++++++++++++++-
 lib/request.php | 27 +++++++++++++++++++++++++++
 3 files changed, 75 insertions(+), 14 deletions(-)
 create mode 100644 lib/request.php

diff --git a/ajax/otpoll.php b/ajax/otpoll.php
index ba0fba9d..83a18d65 100644
--- a/ajax/otpoll.php
+++ b/ajax/otpoll.php
@@ -50,10 +50,8 @@ function bogusSession($i){
 	return $bs;
 }
 
-$postbody = file_get_contents('php://input');
-$postobject = json_decode($postbody, true);
-
-$command = $postobject['command'];
+$request = new OCA\Office\Request();
+$command = $request->getParam('command');
 
 $response = array();
 switch ($command){
@@ -64,17 +62,35 @@ switch ($command){
 		$response = "true"; // should fail when session is non-existent
 		break;
 	case 'sync-ops':
-		// completely bogus
+		$seqHead = $request->getParam('args/seq_head');
+		
+		if (!is_null($seqHead)){
+			$esId = $request->getParam('args/es_id');
+			$memberId = $request->getParam('args/member_id');
+			$ops = $request->getParam('args/client_ops');
+			
+			$currentHead = OCA\Office\Op::getHeadSeq($esId);
 
-		if $postobject['args']['seq_head'] is the most recent op in the ops-table:
+			//if $postobject['args']['seq_head'] is the most recent op in the ops-table:
 			// append all ops in $postobject['args']['client_ops'] to the ops-table
-		else:
-			// reply with:
-			// {
+			if ($seqHead>$currentHead){
+				foreach ($ops as $op){
+					OCA\Office\Op::add($op);
+				}
+			} else {
 			//     result: 'conflict',
 			//     ops: a list of all ops since  $postobject['args']['seq_head']
 			//     headSeq: the most recent op-seq
-			// }
+				$response["result"] = 'conflict';
+				$response["ops"] = OCA\Office\Op::getOpsAfter($esId, $seqHead);
+				$last = end($response["ops"]);
+				$response["headSeq"] = $last['seq'];
+			}
+			
+		} else {
+			// Error :)
+		}
+
 		/* 
 		 * try {
 		 * OCA\Office\Op::add(
@@ -89,9 +105,6 @@ switch ($command){
 		 *	
 		 * }
 		 */
-		$response['result'] = 'newOps';
-		$response['ops'] = array();
-		$response['headSeq'] = -1;
 		break;
 	default:
 		header('HTTP/1.1 400: BAD REQUEST');
diff --git a/lib/op.php b/lib/op.php
index 04a918ad..0207b69c 100644
--- a/lib/op.php
+++ b/lib/op.php
@@ -4,7 +4,7 @@ namespace OCA\Office;
 
 class Op {
 
-	public function add($op){
+	public static function add($op){
 		$query = \OCP\DB::prepare('INSERT INTO `*PREFIX*office_op`  (`es_id`, `seq`, `member`, `opspec`) VALUES (?, ?, ?, ?) ');
 		$result = $query->execute(array(
 			$op['es_id'],
@@ -12,6 +12,27 @@ class Op {
 			$op['member'],
 			$op['opspec'],
 		));
+		return $result;
+	}
+	
+	public static function getHeadSeq($esId){
+		$query = \OCP\DB::prepare('SELECT `seq` FROM `*PREFIX*office_op`  WHERE `es_id`=? ORDER BY `seq` DESC LIMIT 1');
+		$result = $query->execute(array(
+				$esId
+			))
+			->fetchOne()	
+		;
+		return $result;
+	}
+	
+	public static function getOpsAfter($esId, $seq){
+		$query = \OCP\DB::prepare('SELECT `seq` FROM `*PREFIX*office_op`  WHERE `es_id`=? AND `seq`>? ORDER BY `seq` ASC');
+		$result = $query->execute(array(
+				$esId, $seq
+			))
+			->fetchAll()	
+		;
+		return $result;
 	}
 
 }
diff --git a/lib/request.php b/lib/request.php
new file mode 100644
index 00000000..83d6ce4d
--- /dev/null
+++ b/lib/request.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace OCA\Office;
+
+class Request {
+	protected $data = array();
+	
+	public function __construct(){
+		$this->data = json_decode(file_get_contents('php://input'), true);
+	}
+	public function getParam($name){
+		$path = explode('/', $name);
+		
+		reset($path);
+		$index = current($path);
+		$param = $this->data;
+		do {
+			if (!array_key_exists($index, $param)){
+				return null;
+			}
+			$param = $param[$index];
+		} while (($index = next($path)) !== false);
+
+		return $param;
+	}
+}
+	
\ No newline at end of file