nixos/home-manager/modules/nvim.nix

{ inputs, pkgs, ... }: {
  imports = [ inputs.nixvim.homeManagerModules.nixvim ];

  # Nixvim
  programs.nixvim = {
    enable = true;
    viAlias = true;
    vimAlias = true;

    keymaps = [
      {
        action = "<cmd>Oil<cr>";
        key = "<leader>e";
        options = { silent = true; };
      }
      {
        action =
          "<cmd>lua require('conform').format({ bufnr = buf, lsp_fallback = true })<cr>";
        key = "<leader>f";
        options = { silent = true; };
      }
    ];

    opts = {
      hlsearch = false;
      incsearch = true;
      number = true;
      relativenumber = true;
      tabstop = 4;
      softtabstop = 4;
      shiftwidth = 4;
      expandtab = true;
      smartindent = true;
      mouse = "";
      breakindent = true;
      undofile = true;
      swapfile = true;
      ignorecase = true;
      smartcase = true;
      signcolumn = "yes";
      completeopt = "menuone,noselect";
      updatetime = 50;
      timeoutlen = 300;
      colorcolumn = "80";
      showmode = false;
      laststatus = 3;
      splitbelow = true;
      splitright = true;
    };

    globals = {
      mapleader = " ";
      maplocalleader = ";";
    };

    extraConfigLuaPre = ''
      local autocmd = vim.api.nvim_create_autocmd
      local augroup = vim.api.nvim_create_augroup

      -- General Settings
      local general = augroup("General Settings", { clear = true })

      autocmd("BufEnter", {
        callback = function()
          vim.opt.formatoptions:remove { "c", "r", "o" }
        end,
        group = general,
        desc = "Disable New Line Comment",
      })
    '';

    extraConfigLuaPost = ''
      vim.notify = require("mini.notify").make_notify()
    '';
    extraPackages = with pkgs; [
      stylua
      isort
      black
      nixfmt-classic
      jq
      shfmt
      ripgrep
      prettierd
      perl538Packages.PerlTidy
      perl538Packages.PerlCritic
    ];
    plugins = {
      comment.enable = true;

      ts-context-commentstring.enable = true;

      todo-comments.enable = true;

      lspkind = {
        enable = true;
        cmp.enable = true;
      };

      indent-blankline = {
        enable = true;
        settings.scope.enabled = false;
      };

      cmp = {
        enable = true;
        settings = {
          mapping = {
            "<C-l>" = "cmp.mapping.confirm({ select = true })";
            "<C-j>" = ''
              function(fallback)
                  if cmp.visible then
                    cmp.select_next_item()
                  else
                    fallback()
                  end
              end
            '';
            "<C-k>" = ''
              function(fallback)
                  if cmp.visible then
                    cmp.select_prev_item()
                  else
                    fallback()
                  end
              end
            '';
            "<C-Space>" = "cmp.mapping.complete()";
            "<C-e>" = "cmp.mapping.abort()";
            "<C-u>" = "cmp.mapping.scroll_docs(-4)";
            "<C-d>" = "cmp.mapping.scroll_docs(4)";
          };
          snippet.expand = ''
            function(args)
                require('snippy').expand_snippet(args.body)
            end
          '';
          sources =
            [ { name = "nvim_lsp"; } { name = "path"; } { name = "snippy"; } ];
        };
      };
      conform-nvim = {
        enable = true;
        formattersByFt = {
          json = [ "jq" ];
          lua = [ "stylua" ];
          python = [ "isort" "black" ];
          nix = [ "nixfmt" ];
          sh = [ "shfmt" ];
          bash = [ "shfmt" ];
          zsh = [ "zsh" ];
          html = [ "prettierd" ];
          css = [ "prettierd" ];
          perl = [ "perltidy" ];
        };
      };
      lint = {
        enable = true;
        lintersByFt = {
          python = [ "mypy" ];
          ruby = [ "ruby" ];
          # sh = [ "shellcheck" ];
          # bash = [ "shellcheck" ];
          # zsh = [ "shellcheck" ];
          perl = [ "perlcritic" ];
        };
      };
      harpoon = {
        enable = true;
        keymaps = {
          addFile = "<leader>a";
          toggleQuickMenu = "<C-e>";
          navFile = {
            "1" = "<C-j>";
            "2" = "<C-k>";
            "3" = "<C-l>";
            "4" = "<C-;>";
          };
        };
      };

      oil = {
        enable = true;
        settings = {
          show_hidden = true;
          default_file_explorer = true;
        };
      };

      treesitter.enable = true;

      gitsigns = {
        enable = true;
        settings.signs = {
          add.text = "▎";
          change.text = "▎";
          changedelete.text = "▎";
          delete.text = "▎";
          topdelete.text = "▎";
          untracked.text = "▎";
          on_attach = ''
            function(buffer)
              local gs = package.loaded.gitsigns
              
              local function map(mode, l, r, desc)
              	vim.keymap.set(mode, l, r, { buffer = buffer, desc = desc })
              end
              
              -- stylua: ignore start
              map("n", "]g", gs.next_hunk, "Next git hunk")
              map("n", "[g", gs.prev_hunk, "Previous git hunk")
            end
          '';
        };
      };

      mini = {
        enable = true;
        modules = {
          statusline = { set_vim_settings = false; };
          notify = { };
        };
      };

      telescope = {
        enable = true;
        extensions = {
          fzf-native = {
            enable = true;
            settings = {
              fuzzy = true;
              override_generic_sorter = true;
              override_file_sorter = true;
              case_mode = "smart_case";
            };
          };
          ui-select.enable = true;
        };
        keymaps = {
          "<leader>pf" = "find_files";
          "<C-p>" = "git_files";
          "<leader>vh" = "help_tags";
          "<leader>ps" = "grep_string";
        };
      };

      lsp = {
        enable = true;
        servers = {
          lua-ls.enable = true;
          nil_ls.enable = true;
          marksman.enable = true;
          gopls.enable = true;
          pyright.enable = true;
          html.enable = true;
          emmet_ls.enable = true;
          cssls.enable = true;
          bashls.enable = true;
          perlpls.enable = true;
        };
        keymaps = {
          diagnostic = {
            "<leader>vd" = "open_float";
            "[d" = "goto_next";
            "]d" = "goto_prev";
          };
          lspBuf = {
            K = "hover";
            gd = "definition";
            gD = "declaration";
            gi = "implementation";
            "<leader>lca" = "code_action";
            "<leader>lrn" = "rename";
            "<C-h>" = "signature_help";
          };
        };

        preConfig = ''
          local function sign_define(args)
          	vim.fn.sign_define(args.name, {
          		texthl = args.name,
          		text = args.text,
          		numhl = "",
          	})
          end

          sign_define({ name = "DiagnosticSignError", text = "E" })
          sign_define({ name = "DiagnosticSignWarn", text = "W" })
          sign_define({ name = "DiagnosticSignHint", text = "H" })
          sign_define({ name = "DiagnosticSignInfo", text = "I" })
        '';
      };
    };

    colorschemes.catppuccin = {
      enable = true;
      settings = {
        flavour = "frappe";
        styles = {
          functions = [ "bold" ];
          keywords = [ "bold" ];
        };
      };
    };
    extraPlugins = with pkgs.vimPlugins; [ vim-snippets ];
  };
}