neo2005/config/plugins/lsp/default.nix

{ pkgs, lib, ... }: {

  imports = [
    ./trouble.nix
    ./neogen.nix
  ];

  # Autocomplete
  # TODO "ghost text" auto complete with code companion
  plugins.cmp = {
    enable = true;
    settings = {
      autoEnableSources = true;
      experimental = { ghost_text = true; };
      performance = {
        debounce = 60;
        fetchingTimeout = 200;
        maxViewEntries = 30;
      };

      formatting = { fields = [ "kind" "abbr" "menu" ]; };
      sources = [
        { name = "nvim_lsp"; }
        {
          name = "buffer"; # text within current buffer
          option.get_bufnrs.__raw = "vim.api.nvim_list_bufs";
          keywordLength = 3;
        }
        {
          name = "path"; # file system paths
          keywordLength = 3;
        }
      ];

      window = {
        completion = { border = "solid"; };
        documentation = { border = "solid"; };
      };

      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()";
        "<C-b>" = "cmp.mapping.scroll_docs(-4)";
        "<C-f>" = "cmp.mapping.scroll_docs(4)";
        "<C-Space>" = "cmp.mapping.complete()";
        "<CR>" = "cmp.mapping.confirm({ select = true })";
        "<S-CR>" = "cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = true })";
      };
    };
  };

  plugins.cmp-nvim-lsp = {
    enable = true; # LSP
  };
  plugins.cmp-buffer = {
    enable = true;
  };
  plugins.cmp-path = {
    enable = true; # file system paths
  };
  plugins.cmp_luasnip = {
    enable = true; # snippets
  };

  # Language server
  plugins.lsp =
    {
      enable = true;
    };

  plugins.none-ls = {
    enable = true;
    sources = {
      code_actions = {
        statix.enable = true;
        gitsigns.enable = true;
      };
      diagnostics = {
        statix.enable = true;
        deadnix.enable = true;
        pylint.enable = true;
        checkstyle.enable = true;
      };
      formatting = {
        alejandra.enable = true;
        stylua.enable = true;
        shfmt.enable = true;
        nixpkgs_fmt.enable = true;
        google_java_format.enable = false;
        prettier = {
          enable = true;
          disableTsServerFormatter = true;
        };
      };
      completion = {
        luasnip.enable = true;
        spell.enable = true;
      };
    };
  };

  plugins.nix.enable = true;

  # Auto formatter
  plugins.conform-nvim = {
    enable = true;
    settings = {
      format_on_save = {
        lspFallback = true;
        timeoutMs = 500;
      };
      formatters_by_ft = {
        # Use the "_" filetype to run formatters on filetypes that don't have other formatters configured.
        "_" = [
          "squeeze_blanks"
          "trim_whitespace"
          "trim_newlines"
        ];
      };
    };
  };

  # Auto-tagging
  plugins.ts-autotag = {
    enable = true;
  };
  # Needed for autotagging
  plugins.treesitter = {
    enable = true;
  };
}