# edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).

{ config, lib, pkgs, paths, self, keys, ... }:

{
  # NAS Mounting
  hoardingcow-mount.enable = true;

  # Flakesss
  nix.settings.experimental-features = [ "nix-command" "flakes" ];
  nix.settings.trusted-users = [ "root" "gortium" ];

  # Garbage collection
  nix.gc = {
    automatic = true;
    dates = "daily";  # You can also use "daily" or a cron-like spec
    options = "--delete-older-than 30d";
  };

  nix.settings = {
    keep-derivations = true;
    keep-outputs = true;
    auto-optimise-store = true;
  };

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = false;

  # 1. Force the kernel to ignore BIOS resource locks
  boot.kernelParams = [ 
    "acpi_enforce_resources=lax" 
    "nct6775.force_id=0xd120" # This forces the driver to ignore BIOS locks for NCT6116
    "transparent_hugepage=always" # because mucho ram
  ];
  # 2. Load the specific drivers found by sensors-detect
  boot.kernelModules = [ "nct6775" "lm96163" ];
  # 3. Force the nct6775 driver to recognize the chip if it's stubborn
  boot.extraModprobeConfig = ''
    options nct6775 force_id=0xd280
  '';

  boot.blacklistedKernelModules = [ "eeepc_wmi" ];
  networking.hostName = "lazyworkhorse"; # Define your hostname.
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
  networking.hostId = "deadbeef";

  # Set your time zone.
  time.timeZone = "America/Montreal";

  # Locales
  i18n.defaultLocale = "en_CA.UTF-8";
  i18n.supportedLocales = [
    "en_CA.UTF-8/UTF-8"
  ];
  i18n.extraLocaleSettings = {
    LC_ADDRESS = "en_CA.UTF-8";
    LC_IDENTIFICATION = "en_CA.UTF-8";
    LC_MEASUREMENT = "en_CA.UTF-8";
    LC_MONETARY = "en_CA.UTF-8";
    LC_NAME = "en_CA.UTF-8";
    LC_NUMERIC = "en_CA.UTF-8";
    LC_PAPER = "en_CA.UTF-8";
    LC_TELEPHONE = "en_CA.UTF-8";
    LC_TIME = "en_CA.UTF-8";
    LC_CTYPE = "en_CA.UTF-8";
  };

  programs.zsh = {
    enable = true;
    autosuggestions.enable = true;
    syntaxHighlighting.enable = true;
    enableCompletion = true;
  
    setOptions = [ "HIST_IGNORE_ALL_DUPS" "SHARE_HISTORY" ]; 
  };
  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  # console = {
  #   font = "Lat2-Terminus16";
  #   keyMap = "us";
  #   useXkbConfig = true; # use xkb.options in tty.
  # };

  # Configure keymap in X11
  # services.xserver.xkb.layout = "us";
  # services.xserver.xkb.options = "eurosign:e,caps:escape";

  # Enable CUPS to print documents.
  services.printing.enable = true;

  # Enable sound.
  # services.pulseaudio.enable = true;
  # OR
  services.pipewire = {
    enable = true;
    pulse.enable = true;
  };

  # Nix Helper cli tool
  environment.sessionVariables = {
    NH_FLAKE = paths.flake;
  };

  # Enable touchpad support (enabled default in most desktopManager).
  # services.libinput.enable = true;

  # nvim please
  environment.variables.EDITOR = "nvim";

  # List packages installed in system profile.
  # You can use https://Search.nixos.org/ to find more packages (and options).
  environment.systemPackages = with pkgs; [
    neovim
    docker-compose
    wget
    age
    agenix
    git
    lm_sensors
    rocmPackages.rocminfo
    rocmPackages.rocm-smi
    clinfo
    ncurses
    kitty.terminfo
  ];

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #   enable = true;
  #   enableSSHSupport = true;
  # };

  # List services that you want to enable:

  # Enable the OpenSSH daemon
  services.openssh = {
    enable = true;
    ports = [ 22 2424 ];
    settings = {
      PasswordAuthentication = false;
      KbdInteractiveAuthentication = false;
      PermitRootLogin = "prohibit-password"; 
    };
    hostKeys = [
      {
        path = "/etc/ssh/ssh_host_ed25519_key";
        type = "ed25519";
      }
    ];
  };

  # services.ollama = {
  #   enable = true;
  #   acceleration = "rocm";
  #   # Optional: force Ollama to use the MI50 target
  #   rocmOverrideGfx = "9.0.6"; 
  #   environmentVariables = {
  #     ROCR_VISIBLE_DEVICES = "0,1";
  #     # This helps with memory allocation on dual-GPU setups
  #     HSA_ENABLE_SDMA = "0"; 
  #   };
  # };

  services.dockerStacks = {
    versioncontrol = {
      path = self + "/assets/compose/versioncontrol";
      ports = [ 2222 ];
    };
    
    network = {
      path = self + "/assets/compose/network";
      envFile = config.age.secrets.containers_env.path;
      ports = [ 80 443 ];
    };

    passwordmanager = {
      path = self + "/assets/compose/passwordmanager";
    };

    ai = {
      path = self + "/assets/compose/ai";
      envFile = config.age.secrets.containers_env.path;
    };

    cloudstorage = {
      path = self + "/assets/compose/cloudstorage";
      envFile = config.age.secrets.containers_env.path;
    };

    homeautomation = {
      path = self + "/assets/compose/homeautomation";
      envFile = config.age.secrets.containers_env.path;
    };
  };

  services.opencode = {
    enable = true;
    port = 4099;
    ollamaUrl = "http://127.0.0.1:11434/v1"; 
  };

  # services.systemd-fancon = {
  #   enable = true;
  #   config = ''
  #   [MI50_Cooling]
  #   # The lm96163 controller
  #   hwmon = hwmon0
    
  #   # Most lm96163 chips use pwm1 for the main fan header
  #   pwm = 1
  #   pwm = 2

  #   # Watch both MI50 cards
  #   sensor = hwmon3/temp1_input
  #   sensor = hwmon4/temp1_input
    
  #   # Servers cards need air early! 
  #   # Starts spinning at 40C, full blast by 70C
  #   curve = 40:60 55:160 70:255
  #   '';
  # };

  # Private host ssh key managed by agenix
  age = {
    identityPaths = paths.identities;
    secrets = {
      containers_env = {
        file = ../../secrets/containers.env.age;
        path = "/run/secrets/containers.env";
        owner = "root";
        group = "root";
        mode = "0400";
      };
      lazyworkhorse_host_ssh_key = {
        file = ../../secrets/lazyworkhorse_host_ssh_key.age;
        owner = "root";
        group = "root";
        mode = "0600";
        path = "/etc/ssh/ssh_host_ed25519_key";
      };
      n8n_ssh_key = {
        file = ../../secrets/n8n_ssh_key.age;
        owner = "root";
        group = "root";
        mode = "0600";
        path = "/home/n8n-worker/.ssh/n8n_ssh_key";
      };
    };
  };

  # Public host ssh key (kept in sync with the private one)
  environment.etc."ssh/ssh_host_ed25519_key.pub".text =
    "${keys.hosts.lazyworkhorse.main}";

  services.fstrim.enable = true;

  services.zfs.autoSnapshot.enable = true;
  services.zfs.autoScrub.enable = true;
  
  # Mi50 config
  hardware.graphics = {
    enable = true;
    enable32Bit = true; # Useful for some compatibility layers
    extraPackages = with pkgs; [
      rocmPackages.clr.icd # OpenCL/HIP runtime
      amdvlk               # Vulkan drivers
    ];
  };
  nixpkgs.config.rocmTargets = [ "gfx906" ];
  environment.variables = {
    # This "tricks" ROCm into supporting the MI50 if using newer versions
    HSA_OVERRIDE_GFX_VERSION = "9.0.6";
    # Ensures the system sees both GPUs
    HIP_VISIBLE_DEVICES = "0,1";
  };

 # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  # system.copySystemConfiguration = true;

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "25.05"; # Did you read the comment?

}