1 files changed, 105 insertions, 0 deletions
diff --git a/src/lib/Logger.php b/src/lib/Logger.php
new file mode 100644
index 0000000..bf86133
--- /dev/null
+++ b/src/lib/Logger.php
@@ -0,0 +1,105 @@
+<?php
+
+class Logger {
+
+    const DEBUG = 0;
+    const INFO = 1;
+    const WARNING = 2;
+    const ERROR = 3;
+    const FATAL = 4;
+
+    protected static array $levelColors = [
+        self::INFO => 34,
+        self::WARNING => 33,
+        self::ERROR => 31,
+        self::FATAL => 91,
+    ];
+
+    protected static array $levelEmojis = [
+        self::INFO => 'ℹ️',
+        self::WARNING => '⚠️',
+        self::ERROR => '‼️',
+        self::FATAL => '⚡️'
+    ];
+
+    protected string $domain;
+
+    public function __construct(string $domain) {
+        $this->domain = $domain;
+    }
+
+    protected function stderr(string $message, $color = null) {
+        $fmt = "[%s] %s";
+        if (is_int($color))
+            $fmt = "\033[{$color}m$fmt\033[0m";
+        $fmt .= "\n";
+        $message = strip_tags($message);
+        fprintf(STDERR, $fmt, $this->domain, $message);
+    }
+
+    protected function telegram(string $message) {
+        global $config;
+
+        $url = 'https://api.telegram.org/bot'.$config['telegram_token'].'/sendMessage';
+        $query_content = http_build_query([
+            'chat_id' => $config['telegram_chat_id'],
+            'text' => $message,
+            'parse_mode' => 'html'
+        ]);
+
+        $ctx = stream_context_create([
+            'http' => [
+                'header' => [
+                    'Content-type: application/x-www-form-urlencoded',
+                    'Content-Length: '.strlen($query_content)
+                ],
+                'method'  => 'POST',
+                'content' => $query_content
+            ]
+        ]);
+
+        $fp = @fopen($url, 'r', false, $ctx);
+        if ($fp === false) {
+            $this->stderr("fopen failed");
+            return;
+        }
+
+        $result = stream_get_contents($fp);
+        fclose($fp);
+
+        $result = json_decode($result, true);
+        if (!$result['ok'])
+            $this->stderr("telegram did not OK");
+    }
+
+    protected function report(int $level, string $message) {
+        global $config;
+
+        if ($config['verbose'])
+            $this->stderr($message, self::$levelColors[$level] ?? null);
+
+        if ($level != self::DEBUG && ($config['telegram_enabled'] ?? 1) == 1)
+            $this->telegram(self::$levelEmojis[$level].' '.$this->domain.': '.$message);
+    }
+
+    public function debug(string $message) {
+        $this->report(self::DEBUG, $message);
+    }
+
+    public function info(string $message) {
+        $this->report(self::INFO, $message);
+    }
+
+    public function warn(string $message) {
+        $this->report(self::WARNING, $message);
+    }
+
+    public function error(string $message) {
+        $this->report(self::ERROR, $message);
+    }
+
+    public function fatal(string $message) {
+        $this->report(self::FATAL, $message);
+    }
+
+}
+\ No newline at end of file