lsp/presets/typescript-language-server: init

modules/plugins/lsp/presets/default.nix

@@ -6,5 +6,6 @@
     ./tinymist.nix
     ./twig-language-server.nix
     ./typescript-go.nix
+    ./typescript-language-server.nix
   ];
 }

modules/plugins/lsp/presets/typescript-language-server.nix

@@ -0,0 +1,60 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  inherit (lib.meta) getExe;
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkEnableOption;
+  inherit (lib.generators) mkLuaInline;
+
+  cfg = config.vim.lsp.presets.typescript-language-server;
+in {
+  options.vim.lsp.presets.typescript-language-server = {
+    enable = mkEnableOption "the Typescript Language Server";
+  };
+
+  config = mkIf cfg.enable {
+    vim.lsp.servers.typescript-language-server = {
+      enable = true;
+      cmd = [(getExe pkgs.typescript-language-server) "--stdio"];
+      root_markers = [".git" "package.json"];
+      init_options = {hostInfo = "neovim";};
+      handlers = {
+        # handle rename request for certain code actions like extracting functions / types
+        "_typescript.rename" = mkLuaInline ''
+          function(_, result, ctx)
+            local client = assert(vim.lsp.get_client_by_id(ctx.client_id))
+            vim.lsp.util.show_document({
+              uri = result.textDocument.uri,
+              range = {
+                start = result.position,
+                ['end'] = result.position,
+              },
+            }, client.offset_encoding)
+            vim.lsp.buf.rename()
+            return vim.NIL
+          end
+        '';
+      };
+      on_attach = mkLuaInline ''
+        function(client, bufnr)
+          -- ts_ls provides `source.*` code actions that apply to the whole file. These only appear in
+          -- `vim.lsp.buf.code_action()` if specified in `context.only`.
+          vim.api.nvim_buf_create_user_command(0, 'LspTypescriptSourceAction', function()
+            local source_actions = vim.tbl_filter(function(action)
+              return vim.startswith(action, 'source.')
+            end, client.server_capabilities.codeActionProvider.codeActionKinds)
+
+            vim.lsp.buf.code_action({
+              context = {
+                only = source_actions,
+              },
+            })
+          end, {})
+        end
+      '';
+    };
+  };
+}