nix-configs/modules/shell/helix.nix

{config, ...}: {
  home-manager.users.jade = {pkgs, ...}: let
    typstGrammar = pkgs.fetchFromGitHub {
      owner = "uben0";
      repo = "tree-sitter-typst";
      rev = "baddc325e858afff90501dbefa00ecfa28528931";
      sha256 = "sha256-XZAgnpb1B8EZ2WXPj/JYSZGsmpKsnDiBFCDF0XjunOM";
    };
  in {
    home = {
      sessionVariables.EDITOR = "hx";
      packages = [
        pkgs.nil
        pkgs.vscode-langservers-extracted
        pkgs.nodePackages.typescript-language-server
        pkgs.emmet-language-server
        pkgs.typst-lsp
      ];
    };
    home.file = {
      ".config/helix/runtime/queries" = {
        source = "${typstGrammar}/queries";
      };
    };
    programs.helix = {
      enable = true;
      settings = {
        theme = "gruvbox";
        editor = {
          line-number = "relative";
          bufferline = "multiple";
          color-modes = true;
          lsp = {
            display-messages = true;
            display-inlay-hints = true;
          };
          shell = ["nu" "-c"];
          idle-timeout = 30;
          indent-guides = {
            render = true;
            character = "│";
          };
          whitespace = {
            render = {
              space = "all";
              tab = "all";
              newline = "none";
            };
            characters = {
              space = "·";
              nbsp = "⍽";
              tab = "→";
            };
          };
        };
        keys = {
          normal = {
            space."=" = ":fmt";
          };
          insert = {
            up = "no_op";
            down = "no_op";
            left = "no_op";
            right = "no_op";
            pageup = "no_op";
            pagedown = "no_op";
            home = "no_op";
            end = "no_op";
          };
        };
      };
      languages = {
        language-server = {
          "nu-builtin-lsp" = {
            command = "${config.users.defaultUserShell}/bin/nu";
            args = ["--lsp"];
          };
          "rust-analyzer" = {
            config = {
              check.command = "clippy";
              completion.snippets.custom = {
                "pub fn" = {
                  prefix = ["pfn" "pubfn"];
                  postfix = ["pfn"];
                  body = [
                    "pub fn $\{receiver\}() {"
                    "\\t$1"
                    "}"
                  ];
                  scope = "type";
                };
              };
            };
          };
          "emmet-language-server" = {
            command = "emmet-language-server";
            args = ["--stdio"];
          };
          # "php" = {
          #   name = "php";
          #   file-types = [ "php" ];
          #   language-server = {
          #     command = "psalm";
          #     args = ["--language-server"];
          #   };
          # };
          "typst-lsp" = {
            command = "typst-lsp";
            config = {
              exportPdf = "onType";
            };
          };
        };
        grammar = [
          {
            name = "typst";
            source = {
              git = "https://github.com/uben0/tree-sitter-typst";
              rev = "baddc325e858afff90501dbefa00ecfa28528931";
              # path = "${typstGrammar}";
            };
          }
        ];
        language = [
          {
            name = "nu";
            language-servers = ["nu-builtin-lsp"];
          }
          {
            name = "typst";
            scope = "source.typst";
            file-types = ["typ" "typst"];
            injection-regex = "typ(st)?";
            comment-token = "//";
            indent = {
              tab-width = 2;
              unit = "  ";
            };
            roots = ["typst.toml"];
            formatter = {
              command = "${pkgs.typstfmt}/bin/typstfmt";
            };
            auto-format = true;
            language-servers = ["typst-lsp"];
            auto-pairs = {
              "(" = ")";
              "{" = "}";
              "[" = "]";
              "$" = "$";
              "\"" = "\"";
            };
          }
          {
            name = "nix";
            formatter = {
              command = "${pkgs.alejandra}/bin/alejandra";
              args = ["--quiet"];
            };
            auto-format = true;
          }
          {
            name = "html";
            roots = [".git"];
            language-servers = ["vscode-html-language-server" "emmet-language-server"];
            auto-format = false;
          }
        ];
      };
    };
  };
}