created database to store all relevant data

php/Database.php

@@ -0,0 +1,37 @@
+<?php
+
+class Database
+{
+    private static $instance = null;
+    private $conn;
+
+    private $servername = "192.168.0.30";
+    private $username = "root";
+    private $password = "1qayxsw2";
+    private $dbname = "hub";
+
+    // The db connection is established in the private constructor.
+    private function __construct()
+    {
+        // Create connection
+        $this->conn = new mysqli($this->servername, $this->username, $this->password, $this->dbname);
+
+        if ($this->conn->connect_errno) {
+            echo "connecton failed... nr: " . $this->conn->connect_errno . " -- " . $this->conn->connect_error;
+        }
+    }
+
+    public static function getInstance()
+    {
+        if (!self::$instance) {
+            self::$instance = new Database();
+        }
+
+        return self::$instance;
+    }
+
+    public function getConnection()
+    {
+        return $this->conn;
+    }
+}

php/extractvideopreviews.php

@@ -1,6 +1,41 @@
 <?php
+require 'Database.php';
+
+$conn = Database::getInstance()->getConnection();
+
 $arr = scandir("../videos/prn/");
 
+$all = 0;
+$added = 0;
+$failed = 0;
+
 foreach ($arr as $elem) {
-    shell_exec("ffmpeg -ss 00:04:00 -i \"../videos/prn/$elem\" -vframes 1 -q:v 2 \"$elem.jpg\"");
+    if ($elem != "." && $elem != "..") {
+
+        $query = "SELECT * FROM videos WHERE movie_name = '" . mysqli_real_escape_string($conn, $elem) . "'";
+        $result = $conn->query($query);
+        if (!mysqli_fetch_assoc($result)) {
+            $pic = shell_exec("ffmpeg -hide_banner -loglevel panic -ss 00:04:00 -i \"../videos/prn/$elem\" -vframes 1 -q:v 2 -f singlejpeg pipe:1 2>/dev/null");
+
+            $image_base64 = base64_encode($pic);
+
+            $image = 'data:image/jpeg;base64,' . $image_base64;
+            $conn = Database::getInstance()->getConnection();
+
+            $query = "INSERT INTO videos(movie_name,movie_url,thumbnail) VALUES ('" . mysqli_real_escape_string($conn, $elem) . "','" . mysqli_real_escape_string($conn, 'videos/prn/' . $elem) . "','$image')";
+
+            if ($conn->query($query) === TRUE) {
+                echo('successfully added ' . $elem . " to video gravity\n");
+                $added++;
+            } else {
+                echo('{"data":"' . $conn->error . '"}');
+                $failed++;
+            }
+        }
+        $all++;
+    }
 }
+
+echo "Total gravity: " . $all . "\n";
+echo "added in this run: " . $added . "\n";
+echo "errored in this run: " . $failed . "\n";

php/sqlinit.php

@@ -1,11 +0,0 @@
-<?php
-
-$server = "172.17.0.2";
-$user = "mwit";
-$password = "3MnDApF3bu6XDGOE";
-$database = "mwitdb";
-
-$mysqli = new mysqli($server, $user, $password, $database);
-if ($mysqli->connect_errno) {
-    echo "connecton failed... nr: " . $mysqli->connect_errno . " -- " . $mysqli->connect_error;
-}

php/videoload.php

@@ -1,8 +1,61 @@
 <?php
+require 'Database.php';
+
+$conn = Database::getInstance()->getConnection();
 
-$arr = scandir("../videos/prn/");
-echo(json_encode($arr));
 
 if (isset($_POST['action'])) {
+    $action = $_POST['action'];
+    switch ($action) {
+        case "getMovies":
+            $query = "SELECT movie_id,movie_name FROM videos ORDER BY likes DESC,movie_name ASC";
+            $result = $conn->query($query);
+            $rows = array();
+            while ($r = mysqli_fetch_assoc($result)) {
+                array_push($rows,$r);
+            }
 
+            echo(json_encode($rows));
+            break;
+        case "loadVideo":
+            $query = "SELECT movie_url,thumbnail FROM videos WHERE movie_id='" . $_POST['movieid'] . "'";
+
+            $result = $conn->query($query);
+            $row = $result->fetch_assoc();
+
+            $arr = array();
+            $arr["thumbnail"] = $row["thumbnail"];
+            $arr["movie_url"] = $row["movie_url"];
+            echo(json_encode($arr));
+
+            break;
+        case "getDbSize":
+            $query = "SELECT table_schema AS \"Database\", 
+                        ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS \"Size\" 
+                        FROM information_schema.TABLES 
+                        WHERE TABLE_SCHEMA='test'
+                        GROUP BY table_schema;";
+            $result = $conn->query($query);
+
+            if ($result->num_rows == 1) {
+                $row = $result->fetch_assoc();
+
+                echo '{"data":"' . $row["Size"] . '"}';
+            }
+
+            break;
+        case "readThumbnail":
+            $query = "SELECT thumbnail FROM videos WHERE movie_id='" . $_POST['movieid'] . "'";
+
+            $result = $conn->query($query);
+            $row = $result->fetch_assoc();
+
+            echo($row["thumbnail"]);
+
+            break;
+    }
+} else {
+    echo('{"data":"error"}');
 }
+return;
+