{ config, pkgs, inputs, ... }:

{
  imports = [ inputs.nix-minecraft.nixosModules.minecraft-servers ];

  nixpkgs.overlays = [ inputs.nix-minecraft.overlay ];

  services.minecraft-servers = {
    enable = true;
    eula = true;

    servers = {
      fabric = {
        enable = true;
        # Use fetchPackwizModpack to get the server with mods
        package = pkgs.fetchPackwizModpack {
          url = "https://raw.githubusercontent.com/Fabulously-Optimized/fabulously-optimized/main/Packwiz/1.20.1/pack.toml";
          packHash = "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="; # User must update this hash!
        };
        serverProperties = {
          motd = "Extremist Software Optimized Server";
          difficulty = "hard";
          view-distance = 10;
          simulation-distance = 10;
          max-players = 5;
          enable-rcon = true;
          # "rcon.password" set in secrets.nix
        };
        jvmOpts = "-Xms2G -Xmx2500M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -Dusing.aikars.flags=https://mcflags.emc.gs -Daikars.new.flags=true";
      };
    };
  };
}