# 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, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      <home-manager/nixos>
    ];
  
  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;
  
  # amdgpu stuffs
  boot.initrd.kernelModules = [ "amdgpu" ]; 
  services.xserver.videoDrivers = [ "amdgpu" ];
 
  # opengl support
  hardware.opengl.enable = true;
  # opengl packages
  hardware.opengl.extraPackages = with pkgs; [
    rocm-opencl-icd
    rocm-opencl-runtime
    vaapiVdpau 
    libvdpau-va-gl
  ];
  hardware.opengl.driSupport = true;

  networking.hostName = "sky-laptop"; # 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.

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

  # 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.
  };

  # Enable the X11 windowing system
  services.xserver.enable = true;
  services.xserver.displayManager.sessionCommands = ''
slstatus & 
nitrogen --restore &
clipcatd &
'';

  # 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.
  sound.enable = true;
  hardware.pulseaudio.enable = true;

  # Enable touchpad support (enabled default in most desktopManager).
  services.xserver.libinput.enable = true;
  
  # Enable dwm
  services.xserver.windowManager.dwm.package = pkgs.dwm.overrideAttrs {
    src = ./dwm;
  };
  services.xserver.windowManager.dwm.enable = true;  

  # Sky User
  users.users.sky.isNormalUser = true;
  users.users.sky.extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  nixpkgs.config.allowUnfreePredicate = pkg: 
    builtins.elem (lib.getName pkg) [
      "obsidian"
    ];

  nixpkgs.config.permittedInsecurePackages =
    lib.optional (pkgs.obsidian.version == "1.4.16") "electron-25.9.0";

  home-manager.useGlobalPkgs = true; 
  # Home Manager for Sky
  home-manager.users.sky = {pkgs, ...}: {
    home.packages = with pkgs; [
      obsidian
      (callPackage (./rolldice/default.nix) {})
      clang-tools
      rclone
      trash-cli
      mumble
      nheko
      zim
      moonlight-embedded
      nitrogen
      firefox-bin
      neofetch
      ncpamixer
      tree
      xclip
      grpc
      clipcat
      keepassxc
      jellyfin-media-player
    ];
    
    services.picom = {
      enable = true;
      vSync = true;
      backend = "glx";
      inactiveOpacity = 0.9;
      settings = { 
        blur = {
          method = "dual-kawase";
        };
      };
    };

    programs.bash = {
      enable = true;
      shellAliases = {
        nv = "nvim";
	ccm = "clipcat-menu";
      };
    };    

    programs.git = {
      enable = true;
      userName = "Sky Hearn";
      userEmail = "sky.hearn@pm.me";
      signing = {
        key = "DAB485883AE426EC";
        signByDefault = false;    
      };
    };

    programs.neovim = {
    enable = true;
    defaultEditor = true;
    extraConfig = ''
      set shiftwidth=2 smarttab
      set expandtab
      set tabstop=8 softtabstop=0
    '';
    extraPackages = with pkgs; [
    #  Use the project flake's language server to prevent version mismatches
    #  clang_12
    #  rust-analyzer
    ];
    plugins = with pkgs.vimPlugins; [
      {
        plugin = gruvbox-nvim;
        type = "viml";
        # Better performance is off until I can figure out a way to make the cache outside the nix store
        config = ''
	  if has('termguicolors')
	    set termguicolors
	  endif
	  colorscheme gruvbox
        '';
      }
      {
        plugin = lualine-nvim;
        type = "lua";
        config = ''
          require'lualine'.setup {
            options = {
              theme = 'gruvbox'
            },
            sections = {
              lualine_c = {'lsp_progress'}
            }
          }
	'';
      }
      {
        plugin = lsp-status-nvim;
        type = "lua";
        config = ''
          require'lsp-status'.register_progress()
        '';
      }
      {
        plugin = nvim-lspconfig;
        type = "lua";
        config = ''
          -- Mappings.
          -- See `:help vim.diagnostic.*` for documentation on any of the below functions
          local opts = { noremap=true, silent=true }
          vim.keymap.set('n', '<space>e', vim.diagnostic.open_float, opts)
          vim.keymap.set('n', '[d', vim.diagnostic.goto_prev, opts)
          vim.keymap.set('n', ']d', vim.diagnostic.goto_next, opts)
          vim.keymap.set('n', '<space>q', vim.diagnostic.setloclist, opts)

          -- Use an on_attach function to only map the following keys
          -- after the language server attaches to the current buffer
          local on_attach = function(client, bufnr)
            -- Set up status tracking
            require'lsp-status'.on_attach(client)
            -- Enable completion triggered by <c-x><c-o>
            vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

            -- Mappings.
            -- See `:help vim.lsp.*` for documentation on any of the below functions
            local bufopts = { noremap=true, silent=true, buffer=bufnr }
            vim.keymap.set('n', 'gD', vim.lsp.buf.declaration, bufopts)
            vim.keymap.set('n', 'gd', vim.lsp.buf.definition, bufopts)
            vim.keymap.set('n', 'K', vim.lsp.buf.hover, bufopts)
            vim.keymap.set('n', 'gi', vim.lsp.buf.implementation, bufopts)
            vim.keymap.set('n', '<C-k>', vim.lsp.buf.signature_help, bufopts)
            vim.keymap.set('n', '<space>wa', vim.lsp.buf.add_workspace_folder, bufopts)
            vim.keymap.set('n', '<space>wr', vim.lsp.buf.remove_workspace_folder, bufopts)
            vim.keymap.set('n', '<space>wl', function()
              print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
            end, bufopts)
            vim.keymap.set('n', '<space>D', vim.lsp.buf.type_definition, bufopts)
            vim.keymap.set('n', '<space>rn', vim.lsp.buf.rename, bufopts)
            vim.keymap.set('n', '<space>ca', vim.lsp.buf.code_action, bufopts)
            vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
            vim.keymap.set('n', '<space>f', function() vim.lsp.buf.format { async = true } end, bufopts)
          end

          local lsp_flags = {
            -- This is the default in Nvim 0.7+
            debounce_text_changes = 150,
          }

          local servers = { 'clangd', 'rust_analyzer' }

          for _, lsp in ipairs(servers) do
            require'lspconfig'[lsp].setup(
              vim.tbl_extend('keep',
                require('coq').lsp_ensure_capabilities({
                  on_attach = on_attach,
                  flags = lsp_flags
                }) or {},
                require'lsp-status'.capabilities
              )
            )
          end
        '';
      }
      {
        plugin = coq_nvim;
        type = "lua";
        config = ''
          vim.g.coq_settings = { auto_start = 'shut-up', xdg = true }
        '';
      }
      {
        plugin = nvim-treesitter.withAllGrammars;
	type = "lua";
	config = ''
	  require'nvim-treesitter.configs'.setup {
            -- TODO: Make this use stdpath("data")
            -- parser_install_dir = "~/.local/share/nvim/site",
	    -- ensure_installed = { "nix", "help", "rust", "c", "lua" },
	    -- auto_install = true,
	    highlight = {
	      enable = true
	    },
            incremental_selection = {
              enable = true,
              keymaps = {
                init_selection = "gnn", -- set to `false` to disable one of the mappings
                node_incremental = "grn",
                scope_incremental = "grc",
                node_decremental = "grm",
	      }
	    },
	    indent = {
	      enable = true
	    },
	  }
          vim.cmd([[
	    set foldmethod=expr
            set foldexpr=nvim_treesitter#foldexpr()
            set nofoldenable
	  ]])
	'';
      }
      {
        plugin = telescope-nvim;
      }
    ];
  };

    home.stateVersion = "23.11";
  };
  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs; [
    wireguard-tools
    pinentry
    pulseaudio
    bash
    vim
    wget
    acpi
    dmenu
    dunst
    libnotify
    (pkgs.st.overrideAttrs (_: {
        src = ./st;
      })
    )
    (pkgs.slstatus.overrideAttrs (_: {
        src = ./slstatus;
      })
    )
    libva-utils
 ];

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

  # List services that you want to enable:
   
  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  # https://discourse.nixos.org/t/cant-get-gnupg-to-work-no-pinentry/15373/19
  services.pcscd.enable = true;
  programs.gnupg.agent = {
    enable = true;
    pinentryFlavor = "tty";
  };

  # 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.
  #
  # 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 = "23.11"; # Did you read the comment?

}