{ config, lib, pkgs, ... }:

let
  get_spotify_status = pkgs.writeShellScript "get_spotify_status.sh" ''
    #!/bin/bash
    PARENT_BAR="example"
    PARENT_BAR_PID=$(pgrep -a "polybar" | grep "$PARENT_BAR" | cut -d" " -f1)
    PLAYER="playerctld"
    FORMAT="{{ title }} - {{ artist }}"

    update_hooks() {
      while IFS= read -r id; do
        polybar-msg -p "$id" hook spotify-play-pause $2 1>/dev/null 2>&1
      done < <(echo "$1")
    }

    PLAYERCTL_STATUS=$(playerctl --player=$PLAYER status 2>/dev/null)
    EXIT_CODE=$?

    if [ $EXIT_CODE -eq 0 ]; then
      STATUS=$PLAYERCTL_STATUS
    else
      STATUS="No player is running"
    fi

    if [ "$1" == "--status" ]; then
      echo "$STATUS"
    else
      if [ "$STATUS" = "Stopped" ]; then
        echo "Music Stopped"
      elif [ "$STATUS" = "Paused" ]; then
        update_hooks "$PARENT_BAR_PID" 2
        playerctl --player=$PLAYER metadata --format "$FORMAT"
      elif [ "$STATUS" = "No player is running" ]; then
        echo "Music Off"
      else
        update_hooks "$PARENT_BAR_PID" 1
        playerctl --player=$PLAYER metadata --format "$FORMAT"
      fi
    fi
  '';

  hidePolybarInFullscreen = pkgs.writeShellScript "hidePolybarInFullscreen.sh" ''
    #!/usr/bin/env bash
    sleep 1
    i3-msg -t subscribe -m '[ "window" ]' | while read -r event; do
      if echo "$event" | grep -q '"fullscreen_mode":[[:space:]]*1'; then
        polybar-msg cmd hide
      elif echo "$event" | grep -q '"fullscreen_mode":[[:space:]]*0'; then
        polybar-msg cmd show
      fi
    done
  '';
in
{
  imports = [
    ./hardware-configuration.nix
  ];

  nix.settings = {
    substituters = [
      "https://cache.nixos.org/"
    ];

    trusted-public-keys = [
      "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
    ];
    experimental-features = [
        "nix-command"
        "flakes"
      ];
  };


  # === System Settings ===
  boot = {
    kernelPackages = pkgs.linuxPackages_latest;
    initrd = {
      kernelModules = [ "i915" ];
      systemd.enable = true;
    };
    loader = {
      # Hide the OS choice for bootloaders.
      # It's still possible to open the bootloader list by pressing any key
      # It will just not appear on screen unless a key is pressed
      timeout = 0;
      
      efi = {
        canTouchEfiVariables = true;
        efiSysMountPoint = "/boot";
      };
      grub = {
        enable = false;
        device = "nodev";
        useOSProber = true;
        efiSupport = true;
      };
      systemd-boot = {
        enable = true;
        consoleMode = "keep";
        configurationLimit = 5;
      };
    };
    plymouth = {
      enable = true;
      theme = "deus_ex";
      themePackages = with pkgs; [
        # By default we would install all themes
        (adi1090x-plymouth-themes.override {
          selected_themes = [ "deus_ex" ];
        })
      ];
      logo = pkgs.fetchurl {
        url = "https://external-content.duckduckgo.com/iu/?u=https%3A%2F%2Fcdn.icon-icons.com%2Ficons2%2F2699%2FPNG%2F512%2Fnixos_logo_icon_170910.png&f=1&nofb=1&ipt=71345d68f1fc864748db54e81111d5853a24fba1d39bdee7cc6fda3e58181bc0";
        sha256 = "sha256-fr1ZnKdX9EeXl2eTIrxEd17DkVKZL8BV9RGmluSgFfk=";
      };
      extraConfig = ''
        DeviceScale=1
      '';
    };

    # Enable "Silent boot"
    consoleLogLevel = 3;
    initrd.verbose = false;
    kernelParams = [
      "quiet"
      "splash"
      "udev.log_level=3"
      "systemd.show_status=auto"
    ];
  };
  networking.hostName = "kronos";
  networking.networkmanager.enable = true;

  fileSystems."/boot".options = [ "fmask=0077" "dmask=0077" ];

  hardware.bluetooth = {
    enable = true;
    powerOnBoot = true;
    settings = {
      General = {
        Experimental = true;
	Enable = "Source,Sink,Media,Socket";
	AutoConnect = true;
	FastConnectabke = true;
      };
      Policy.AutoEnable = true;
    };
  };

  security.pam.sshAgentAuth.enable = true;

# In your configuration.nix
environment.variables = {
  JAVA_HOME = "${pkgs.jdk17}/lib/openjdk";  # adjust path based on version
};

  time.timeZone = "Europe/Prague";

  services.xserver = {
    wacom.enable = true;
    enable = true;
    windowManager.i3 = {
      enable = true;
      extraPackages = with pkgs; [ polybar  i3lock-fancy-rapid ];
    };
    
  };

    services.displayManager.defaultSession = "none+i3";
  services.displayManager.ly = {
	enable = true;
  };
  services.xserver.xkb.layout = "cz";
  services.xserver.xkb.options = "eurosign:e,caps:escape";

  services.printing.enable = true;
  services.pipewire = { enable = true; pulse.enable = true; };
  services.libinput.enable = true;

  users.users = {
    mun = {
      isNormalUser = true;
      extraGroups = [ "wheel" "bluetooth" "networkmanager" "kvm" "nixos" ];
      packages = with pkgs; [ tree ];
      shell = pkgs.zsh;
    };
  };

  programs.firefox.enable = true;
  programs.zsh.enable = true;
  nixpkgs.config.allowUnfree = true;

  environment.systemPackages = with pkgs; [
    neovim wget stdenv tree-sitter discord kitty xfce.thunar thunderbird
    flameshot libreoffice spotify tor-browser alsa-utils helvum
    blueman bluez cava i3status i3lock-fancy-rapid xss-lock polybar
    rofi feh clipman tree git lazygit killall acpi wirelesstools
    brightnessctl fastfetch auto-cpufreq btop cargo gnome-boxes
    clippy xclip texstudio  godotPackages_4_5.godot 
     clang tree-sitter ripgrep fd unzip lua-language-server stylua
    rust-analyzer rustfmt cargo rustc zathura krita
    ruff vtsls pyright imagemagick ghostscript ruff python314 ly
    prismlauncher vlc lua53Packages.luarocks mermaid-cli lua nil obsidian
    wine bottles comic-mono playerctl zscroll espeak qbittorrent perl bzip2
    libresprite audacity libgcc celestia lutris vscodium peazip vscode

    (texlive.combine {
	  inherit (texlive) scheme-full;
	  notestex = texlivePackages.notestex;
	})


    (retroarch.withCores (cores: with cores; [
    # --- NES --- #
    fceumm

    # --- GBA --- #
    mgba

    # --- GB / GBC --- #
    gambatte
    sameboy
  ])) 
    
  ];

  fonts = {
    enableDefaultPackages = true;
    packages = with pkgs; [ fira-code noto-fonts noto-fonts-color-emoji blackout beon];
  };

  programs.steam = {
  enable = true;
  remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
  dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
  localNetworkGameTransfers.openFirewall = true; # Open ports in the firewall for Steam Local Network Game Transfers
  };

   # enable Java support
  programs.java = {
    enable = true;
    package = pkgs.jdk17;  # or pkgs.jdk11, pkgs.jdk8, whatever you need
  };

  services.xserver.videoDrivers = [ "intel" ];

  hardware.graphics = {
  enable = true;
  extraPackages = with pkgs; [
    intel-vaapi-driver # for video acceleration on Intel
    intel-media-driver
    intel-compute-runtime
    mesa
    ];
  };



  services.openssh.enable = true;



  system.stateVersion = "25.11";

}