try to add lsp support

common/nvim/nvim.nix

@@ -5,16 +5,188 @@
 		# needed for the nvim config, neovim itself is a system package already
 		ripgrep
 	];
-	programs.neovim = {
+	# programs.neovim = {
+	# 	enable = true;
+	# 	defaultEditor = true;
+	#
+	# 	viAlias = true;
+	# 	vimAlias = true;
+	# 	vimdiffAlias = true;
+	#
+	# 	extraLuaConfig = ''
+	# 		${builtins.readFile ./init.lua}
+	# 	'';
+	# };
+	programs.nixvim = {
 		enable = true;
 		defaultEditor = true;
-
 		viAlias = true;
 		vimAlias = true;
-		vimdiffAlias = true;
 
-		extraLuaConfig = ''
-			${builtins.readFile ./init.lua}
-		'';
+		colorschemes.tokyonight = {
+			enable = true;
+			style = "night";
+		};
+
+		globals = {
+			mapleader = " ";
+			maplocalleader = " ";
+		};
+
+		options = {
+			hlsearch = true;
+			number = true;
+			relativenumber = true;
+			mouse = "a";
+			showmode = false;
+			breakindent = true;
+			undofile = true;
+			ignorecase = true;
+			smartcase = true;
+			signcolumn = "yes";
+			updatetime = 250;
+			timeoutlen = 300;
+			splitright = true;
+			splitbelow = true;
+
+			list = true;
+			listchars = { tab = "» "; trail = "·"; nbsp = "␣"; };
+
+			inccommand = "split";
+			cursorline = true;
+
+			scrolloff = 10;
+			foldmethod = "expr";
+			foldexpr = "nvim_treesitter#foldexpr()";
+
+			autoGroups = {
+				"kickstart-highlight-yank" = { clear = true; };
+				"kickstart-lsp-attach" = {clear = true; };
+			};
+
+			autoCmd = [
+				{
+					event = "TextYankPost";
+					group = "kickstart-highlight-yank";
+					callback = ''function() vim.highlight.on_yank() end'';
+				}
+				{
+					event = "LspAttach";
+					group = "kickstart-lsp-attach";
+					callback = builtins.readFile ./lsp_autocmd.lua;
+				}
+			];
+		};
+
+		keymaps = [
+			{ mode = "n"; key = "<Esc>"; action = "<cmd>nohlsearch<CR>";}
+			{ mode = "n"; key = "[d"; lua = true; action = "vim.diagnostic.goto_prev"; options.desc = "Go to previous [D]iagnostic message" ;}
+			{ mode = "n"; key = "]d"; lua = true; action = "vim.diagnostic.goto_next"; options.desc = "Go to next [D]iagnostic message" ;}
+			{ mode = "n"; key = "<leader>e"; lua = true; action = "vim.diagnostic.open_float"; options.desc = "Show diagnostic [E]rror messages" ;}
+			{ mode = "n"; key = "<leader>q"; lua = true; action = "vim.diagnostic.setloclist"; options.desc = "Open diagnostic [Q]uickfix list" ;}
+			{ mode = "t"; key = "<Esc><Esc>"; action = "<C-\\><C-n>"; options.desc = "Exit terminal mode" ;}
+			{ mode = "n"; key = "<C-h>"; action = "<C-w><C-h>"; options.desc = "Move focus to the left window" ;}
+			{ mode = "n"; key = "<C-l>"; action = "<C-w><C-l>"; options.desc = "Move focus to the right window" ;}
+			{ mode = "n"; key = "<C-j>"; action = "<C-w><C-j>"; options.desc = "Move focus to the lower window" ;}
+			{ mode = "n"; key = "<C-k>"; action = "<C-w><C-k>"; options.desc = "Move focus to the upper window" ;}
+			{ mode = "n"; key = "<leader>pv"; lua = true; action = "vim.cmd.Ex";}
+			{ mode = "x"; key = "<leader>p"; action = ''[["_dP]]'';}
+			{ mode = [ "n" "v" ]; key = "<leader>y"; action = ''[["+y]]'';}
+			{ mode = "n"; key = "<leader>Y"; action = ''[["+Y]]'';}
+			{ mode = [ "n" "v" ]; key = "<leader>d"; action = ''[["_d]]'';}
+			{ mode = "v"; key = "J"; action = ":m '>+1<CR>gv=gv";}
+			{ mode = "v"; key = "K"; action = ":m '<-2<CR>gv=gv";}
+		];
+
+		plugins = {
+			fugitive.enable = true;
+			nvim-colorizer.enable = true;
+			comment-nvim.enable = true;
+			gitsigns = {
+				enable = true;
+				signs = {
+					add.text = "+";
+					change.text = "~";
+					delete.text = "_";
+					topdelete.text = "‾";
+					changedelete.text = "~";
+					untracked.text = "┆";
+				};
+			};
+			which-key = {
+				enable = true;
+				registrations = {
+					"<leader>c" = "[C]ode";
+					"<leader>d" = "[D]ocument";
+					"<leader>r" = "[R]ename";
+					"<leader>s" = "[S]earch";
+					"<leader>w" = "[W]orkspace";
+				};
+			};
+			telescope = {
+				enable = true;
+				extensions = {
+					fzf-native.enable = true;
+					ui-select.enable = true;
+				};
+				keymaps = {
+					"<leader>sh" = {
+						action = "help_tags";
+						desc = "[S]earch [H]elp";
+					};
+					"<leader>sk" = { action = "keymaps"; desc = "[S]earch [K]eymaps"; };
+					"<leader>sf" = { action = "find_files"; desc = "[S]earch [F]iles"; };
+					"<leader>ss" = { action = "builtin"; desc = "[S]earch [S]elect Telescope"; };
+					"<leader>sw" = { action = "grep_string"; desc = "[S]earch current [W]ord"; };
+					"<leader>sg" = { action = "live_grep"; desc = "[S]earch by [G]rep"; };
+					"<leader>sd" = { action = "diagnostics"; desc = "[S]earch [D]iagnostics"; };
+					"<leader>sr" = { action = "resume"; desc = "[S]earch [R]esume"; };
+					"<leader>s." = { action = "oldfiles"; desc = ''[S]earch Recent Files ("." for repeat)''; };
+					"<leader><leader>" = { action = "buffers"; desc = "[ ] Find existing buffers"; };
+				};
+			};
+			conform-nvim = {
+				enable = true;
+				formatOnSave = {
+					timeoutMs = 500;
+					lspFallback = true;
+				};
+				formattersByFt = {
+					lua = [ "stylua" ];
+					python = [ "black" ];
+				};
+			};
+			cmp = {
+				enable = true;
+				# TODO: find out how cmp works
+			};
+			todo-comments = {
+				enable = true;
+				signs = false;
+			};
+			mini = {
+				enable = true;
+				modules = {
+					ai = {
+						n_lines = 500;
+					};
+					surround = {};
+					statusline = {};
+				};
+			};
+			treesitter = {
+				enable = true;
+				indent = true;
+				folding = true;
+				nixvimInjections = true;
+			};
+			treesitter-context = {
+				enable = true;
+				maxLines = 8;
+			};
+		};
+		extraPlugins = with pkgs.vimPlugins; [
+			vim-sleuth
+		];
 	};
 }