feat: screenshot twitch messages

1 files changed, 100 insertions, 6 deletions

diff --git a/public/generate.php b/public/generate.php
index ba7883a..6226c8f 100644
--- a/public/generate.php
+++ b/public/generate.php
@@ -1,7 +1,101 @@
 <?php
 include_once '../src/message_picture.php';
 
-$old_pfp = imagecreatefrompng('./pfp.png');
+if (!isset($_GET['message_id'], $_GET['channel_login'])) {
+    http_response_code(400);
+    exit('message_id and channel_login must be set in query string!');
+}
+
+$message_id = $_GET['message_id'];
+$channel_login = $_GET['channel_login'];
+
+// obtaining user data and message
+$request = curl_init();
+curl_setopt($request, CURLOPT_URL, "https://recent-messages.robotty.de/api/v2/recent-messages/{$channel_login}?hide_moderation_messages=true&clearchat_to_notice=true");
+curl_setopt($request, CURLOPT_RETURNTRANSFER, true);
+$response = curl_exec($request);
+if (curl_errno($request)) {
+    echo 'cURL Error: ' . curl_error($request);
+}
+curl_close($request);
+
+$recent_messages = json_decode($response, true);
+
+if (isset($recent_messages['error'])) {
+    http_response_code(400);
+    exit("Failed to retrieve messages from recent-messages API: {$recent_messages["error"]}");
+}
+
+// searching the message
+$username = "";
+$message = "";
+$timestamp = 0;
+
+foreach ($recent_messages['messages'] as $m) {
+    $parts = explode(' ', $m);
+
+    // searching message by id
+    $flags = $parts[0];
+    if (str_starts_with($flags, '@')) {
+        $flags = substr($flags, 1);
+    }
+    $flags = explode(';', $flags);
+
+    $found = false;
+
+    foreach ($flags as $f) {
+        $ff = explode('=', $f);
+        if ($ff[0] == 'id' && $ff[1] == $message_id) {
+            $found = true;
+        } else if ($ff[0] == 'tmi-sent-ts') {
+            $timestamp = intval($ff[1]);
+        }
+    }
+
+    if (!$found) {
+        continue;
+    }
+
+    $username = explode('!', $parts[1]);
+    $username = substr($username[0], 1);
+
+    array_splice($parts, 0, 4);
+    $message = implode(' ', $parts);
+
+    if (str_starts_with($message, ':')) {
+        $message = substr($message, 1);
+    }
+
+    break;
+}
+
+if (empty($username) || empty($message)) {
+    http_response_code(404);
+    exit("Message ID {$message_id} not found");
+}
+
+// getting user pfp
+$request = curl_init();
+curl_setopt($request, CURLOPT_URL, "https://api.ivr.fi/v2/twitch/user?login={$username}");
+curl_setopt($request, CURLOPT_RETURNTRANSFER, true);
+$response = curl_exec($request);
+curl_close($request);
+
+$user = json_decode($response, true);
+
+if (isset($user['error'])) {
+    http_response_code(400);
+    $m = $user['error']['message'] ?? "unknown";
+    exit("Failed to retrieve a user from IVR API: {$m}");
+}
+
+if (empty($user)) {
+    http_response_code(404);
+    exit("User {$username} doesn't exist in IVR API");
+}
+
+$old_pfp = imagecreatefromstring(file_get_contents($user[0]['logo']));
+
 $oldw = imagesx($old_pfp);
 $oldh = imagesy($old_pfp);
 $pfp = imagecreatetruecolor(72, 72);
@@ -9,16 +103,16 @@ imagecopyresampled($pfp, $old_pfp, 0, 0, 0, 0, 72, 72, $oldw, $oldh);
 
 $screenshot = generate_message_screenshot(
     $pfp,
-    "ilotterytea",
-    "forsen",
-    "Lorem ipsum dolor sit amet consectetur adipisicing elit. Quos sed quae minus libero odit illum atque itaque nulla! Ut quia fuga excepturi saepe nemo magni exercitationem aperiam commodi maxime ab.",
-    time()
+    $username,
+    $channel_login,
+    $message,
+    $timestamp / 1000
 );
 
 imagedestroy($pfp);
 imagedestroy($old_pfp);
 
 header('Content-Type: image/jpeg');
-header("Content-Disposition: inline; filename*=UTF-8''someshit.jpg");
+header("Content-Disposition: inline; filename*=UTF-8''message-{$username}-{$message_id}-{$channel_login}.jpg");
 imagejpeg($screenshot);
 imagedestroy($screenshot);
\ No newline at end of file