feat(mindustry): Added better VPN error message

imperium-common/src/main/kotlin/com/xpdustry/imperium/common/misc/DiscordExtensions.kt

@@ -22,4 +22,4 @@ import java.net.URL
 
 val BLURPLE = Color(0x5865F2)
 
-val DISCORD_INVITATION_LINK = URL("https://discord.gg/chaotic-neutral-519293558599974912")
+val DISCORD_INVITATION_LINK = URL("https://discord.xpdustry.com")

imperium-mindustry/src/main/kotlin/com/xpdustry/imperium/mindustry/security/VpnGatekeeper.kt

@@ -17,6 +17,7 @@
  */
 package com.xpdustry.imperium.mindustry.security
 
+import com.xpdustry.imperium.common.misc.DISCORD_INVITATION_LINK
 import com.xpdustry.imperium.common.misc.LoggerDelegate
 import com.xpdustry.imperium.common.network.VpnDetection
 import com.xpdustry.imperium.common.security.AddressWhitelist
@@ -30,7 +31,17 @@ class VpnGatekeeper(private val provider: VpnDetection, private val whitelist: A
         }
         val result = provider.isVpn(context.address)
         if (result is VpnDetection.Result.Success) {
-            return if (result.vpn) GatekeeperResult.Failure("VPN detected")
+            // TODO Add proper command for ip unblocks, such as "/request unblock"
+            return if (result.vpn)
+                GatekeeperResult.Failure(
+                    """
+                    [red]VPN detected.[]
+                    [lightgray]If you think this is a false positive or using a VPN is necessary to you,
+                    join our discord server at [accent]${DISCORD_INVITATION_LINK}[].
+                    Then ask for an IP unblock in the [accent]#appeals[] channel.
+                    [red]Warning: During the process, only share you IP address to an admin [orange](${context.address.hostAddress})[].[]
+                    """
+                        .trimIndent())
             else GatekeeperResult.Success
         }
         if (result is VpnDetection.Result.Failure) {