Switch to using nixvim and setup full config

modules/home/neovim/default.nix

@@ -19,17 +19,17 @@
   ...
 }:
 
-with lib;
-
 let
   cfg = config.modules.neovim;
 in
 {
   options.modules.neovim = {
-    enable = mkOption { default = false; };
+    enable = lib.mkOption { default = false; };
   };
 
-  config = mkIf cfg.enable {
+  imports = [ inputs.nixvim.homeManagerModules.nixvim ];
+
+  config = lib.mkIf cfg.enable {
     home.sessionVariables = {
       EDITOR = "nvim";
       VISUAL = "nvim";
@@ -41,56 +41,142 @@ in
       gcc
       ripgrep
       fd
+      stylua
+      black
+      nixfmt-rfc-style # nixfmt
     ];
 
-    programs.neovim =
-      let
-        toLua = str: ''
-          lua << EOF
-          ${str}
-          EOF
-        '';
-      in
-      {
-        # https://www.youtube.com/watch?v=YZAnJ0rwREA
+    programs.nixvim = {
+      enable = true;
+      viAlias = true;
+      vimAlias = true;
+
+      colorschemes.catppuccin = {
         enable = true;
-        viAlias = true;
-        vimAlias = true;
-        # vimdiffAlias = true;
-
-        # plugins = with pkgs.vimPlugins; [
-        #   {
-        #     plugin = dracula-nvim;
-        #     config = "colorscheme dracula";
-        #   }
-        #   {
-        #     plugin = comment-nvim;
-        #     config = toLua ''require("Comment").setup()'';
-        #   }
-
-        #   # nix file support
-        #   vim-nix
-
-        #   # Syntax highlighting
-        #   (nvim-treesitter.withPlugins (p: [
-        #     p.tree-sitter-nix
-        #     p.tree-sitter-vim
-        #     p.tree-sitter-bash
-        #     p.tree-sitter-lua
-        #     p.tree-sitter-python
-        #     p.tree-sitter-json
-        #     p.tree-sitter-cpp
-        #     p.tree-sitter-rust
-        #   ]))
-        # ];
-
-        # extraConfig = ''
-        #   set clipboard=unnamedplus
-        # '';
-
-        # extraLuaConfig = ''
-        #   vim.o.termguicolors = true
-        # '';
+        settings.flavour = "mocha";
       };
+
+      globals.mapleader = " ";
+      opts = {
+        number = false;
+        relativenumber = false;
+
+      };
+      clipboard.register = "unnamedplus"; # Use system clipboard
+
+      keymaps = [
+        {
+          action = "<cmd>Telescope live_grep<cr>";
+          key = "<leader>/";
+        }
+        {
+          action = "<cmd>Telescope find_files<cr>";
+          key = "<leader><space>";
+        }
+        {
+          action = "<cmd>Telescope file_browser<cr>";
+          key = "<leader>.";
+        }
+        {
+          action = "<cmd>Neogit<cr>";
+          key = "<leader>gg";
+        }
+        {
+          key = "<C-s>";
+          action = "<esc><cmd>lua require('conform').format()<cr><cmd>write<cr>";
+          mode = [
+            "i"
+            "x"
+            "n"
+            "s"
+          ];
+        }
+      ];
+
+      plugins = {
+        lualine.enable = true;
+        commentary.enable = true;
+        which-key.enable = true;
+        treesitter.enable = true; # enables all grammar packages
+        neogit.enable = true; # like magit
+        trouble.enable = true;
+
+        # Shows file trees
+        oil = {
+          enable = true;
+          settings = {
+            view_options.show_hidden = true;
+          };
+        };
+
+        # Code formatting
+        conform-nvim = {
+          enable = true;
+          formattersByFt = with pkgs; {
+            lua = [ "stylua" ];
+            python = [ "black" ];
+            nix = [ "nixfmt" ];
+          };
+          # extraOptions = {
+          #   default_format_opts.lsp_format = "fallback";
+          # };
+        };
+
+        # autocomplete
+        cmp = {
+          enable = true;
+          autoEnableSources = true;
+          settings.sources = [
+            { name = "nvim_lsp"; }
+            { name = "path"; }
+            { name = "buffer"; }
+          ];
+          settings.mapping = {
+            "<Tab>" = "cmp.mapping(cmp.mapping.select_next_item(), {'i', 's'})";
+            "<C-j>" = "cmp.mapping.select_next_item()";
+            "<C-k>" = "cmp.mapping.select_prev_item()";
+            "<C-e>" = "cmp.mapping.abort()";
+            "<CR>" = "cmp.mapping.confirm({ select = true })";
+          };
+        };
+
+        # Fuzzy finder
+        telescope = {
+          enable = true;
+          defaults.mappings = {
+            i = {
+              "<C-j>".__raw = "require('telescope.actions').move_selection_next";
+              "<C-k>".__raw = "require('telescope.actions').move_selection_previous";
+              "<tab>".__raw = "require('telescope.actions').select_default";
+            };
+          };
+          extensions = {
+            fzf-native.enable = true;
+            file-browser = {
+              enable = true;
+              hidden = true; # show hidden files
+            };
+          };
+          # Small hack since these file-browser options are not implemented in nixvim jet
+          extraOptions = {
+            extensions.file_browser.follow_symlinks = true;
+            extensions.file_browser.no_ignore = true;
+          };
+        };
+
+        lsp = {
+          enable = true;
+          servers = {
+            rust-analyzer.enable = true;
+            nixd.enable = true;
+            pyright.enable = true;
+            dockerls.enable = true;
+            lua_ls.enable = true;
+          };
+        };
+
+      };
+
+    };
   };
 }