get and send messages impl

tests/sendMessage.php

@@ -13,11 +13,31 @@ Environment::configure($argv[1]);
 $mc = Meshcore::getInstance();
 
 $mc->appStart("send message");
-$resp = $mc->sendChannelTxtMessage("Ping", 0); // default channel Public on 0
 
-echo "Send Channel Txt Message result: " . print_r($resp, true) . "\n";
+$channels = [];
 
-$msgs = $mc->pollForMessage('');
+for( $i = 0; $i < 40; $i++ ) {
+    $chan = $mc->getChannel($i);
+
+    if( !empty($chan['channel_name']) ) {
+        $channels[] = $chan;
+    }
+}
+
+$idx = 0;
+foreach($channels as $channel) {
+    echo "({$channel['channel_idx']}) {$channel['channel_name']}\n";
+    echo "\t{$channel['channel_secret']}\n";
+}
+
+$chan_id = readline("Which channel to send message? ");
+
+$message = readline("Message? ");
+
+if( $mc->sendChannelTxtMessage($message, $chan_id) ) {
+    echo "Message sent\n";
+}
+
+$msgs = $mc->pollForMessage('', 7000);
 
 print_r($msgs);
-