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import * as vscode from "vscode";import type { ImportMap } from "./typescript-esmsh-plugin.ts";import {  debunce,  getImportMapFromHtml,  insertImportMap,  regexpNpmNaming,  sortByVersion,} from "./util.ts";
interface ProjectConfig {  importMap?: ImportMap;}
interface TSApi {  updateConfig: (config: ProjectConfig) => void;}
const jsxRuntimes = [  "react",  "preact",  "solid-js",];
export async function activate(context: vscode.ExtensionContext) {  const { commands, workspace, window } = vscode;
  let tsApi: TSApi;  try {    tsApi = await ensureTsApi();  } catch (e) {    console.error(e);  }
  const onIndexHtmlChange = debunce((html: string) => {    const importMap = getImportMapFromHtml(html);    tsApi.updateConfig({ importMap });  }, 500);
  context.subscriptions.push(    workspace.onDidSaveTextDocument((document) => {      const name = workspace.asRelativePath(document.uri);      if (name === "index.html") {        onIndexHtmlChange(document.getText());      }    }),  );
  context.subscriptions.push(    commands.registerCommand(      "esmsh.addModule",      async () => {        const name = await window.showInputBox({          placeHolder: "Enter module name, e.g. lodash",          validateInput: (name: string) => {            if (!name.trim()) {              return null;            }            let scope = "";            let pkgName = name;            if (name.startsWith("@")) {              const parts = name.split("/");              if (parts.length < 2) {                return "Invalid Module Name";              }              scope = parts[0] + "/";              pkgName = parts[1];            }            pkgName = pkgName.split("@")[0];            if (              (scope && !regexpNpmNaming.test(scope)) ||              !regexpNpmNaming.test(pkgName)            ) {              return "Invalid Module Name";            }            return null;          },        });        if (!name) {          return;        }
        // TODO: support multiple packages        let pkgName = name.trim().split(" ")[0];        let scope = "";        let version = "";        if (pkgName.startsWith("@")) {          const parts = pkgName.split("/");          scope = parts[0];          pkgName = parts[1];        }        if (pkgName.includes("@")) {          const parts = pkgName.split("@");          pkgName = parts[0];          version = parts[1];        }        if (scope) {          pkgName = scope + "/" + pkgName;        }        window.withProgress({          location: vscode.ProgressLocation.Window,          cancellable: true,          title: `Searching '${pkgName}'...`,        }, async () => {          try {            const res = await fetch(`https://registry.npmjs.org/${pkgName}`);            if (!res.ok) {              window.showErrorMessage(`Could not find '${pkgName}'`);              return;            }
            const pkgInfo = await res.json();            const distTags = Object.keys(pkgInfo["dist-tags"]).map((dist) => ({              label: pkgName,              description: `<${dist}> ${pkgInfo["dist-tags"][dist]}`,            }));            const allVersions = Object.keys(pkgInfo.versions).sort(              sortByVersion,            ).map((version) => ({ label: pkgName, description: version }));            const versions = version              ? allVersions.filter((v) => v.description.startsWith(version))              : distTags.concat(allVersions);            if (versions.length === 0) {              window.showErrorMessage(`Could not find '${pkgName}@${version}'`);              return;            }            window.showQuickPick(              versions,              {                placeHolder: `Select a version of '${pkgName}':`,                matchOnDescription: true,              },            ).then(async (item) => {              if (!item) {                return;              }
              const uris = await workspace.findFiles("index.html");              if (uris.length === 0) {                window.showErrorMessage("No index.html found");                return;              }
              const uri = uris[0];              const document = await workspace.openTextDocument(uri);              const importMap = getImportMapFromHtml(document.getText());              const pkgName = item.label;              const version = item.description.split(" ")[1] ??                item.description;              const imports = importMap.imports || (importMap.imports = {});              if (jsxRuntimes.includes(pkgName)) {                imports["@jsxImportSource"] =                  `https://esm.sh/${pkgName}@${version}`;              }              imports[pkgName] = `https://esm.sh/${pkgName}@${version}`;              imports[pkgName + "/"] = `https://esm.sh/${pkgName}@${version}/`;              const newHtml = new TextEncoder().encode(                insertImportMap(document.getText(), importMap),              );              workspace.fs.writeFile(uri, newHtml);              tsApi.updateConfig({ importMap });            });          } catch (error) {            window.showErrorMessage(`Could not find '${name}'`);          }        });      },    ),  );}
async function ensureTsApi() {  const tsExtension = vscode.extensions.getExtension(    "vscode.typescript-language-features",  );  if (!tsExtension) {    throw new Error("vscode.typescript-language-features not found");  }  await tsExtension.activate();  const api = tsExtension.exports.getAPI(0);  if (!api) {    throw new Error("vscode.typescript-language-features api not found");  }  const config: ProjectConfig = {};  return {    updateConfig: (c: ProjectConfig) => {      const old = JSON.stringify(config);      Object.assign(config, c);      if (old !== JSON.stringify(config)) {        api.configurePlugin("typescript-esmsh-plugin", config);      }    },  };}
export function deactivate() {}