`types(groq-builder): improved logging

packages/ts-simplify/bin/ts-simplify.ts

@@ -1,5 +1,6 @@
 import { simplifyTypes } from "../src/simplify-types";
 
 declare const process: { argv: string[] };
-const [_, __, source, output] = process.argv;
-simplifyTypes({ source, output });
+const [_, __, sourceFile, outputFile] = process.argv;
+const outputText = simplifyTypes({ sourceFile });
+console.log(outputText);

packages/ts-simplify/package.json

@@ -9,8 +9,12 @@
   "keywords": [],
   "author": "",
   "license": "MIT",
+  "dependencies": {
+    "debug": "^4.3.4",
+    "ts-morph": "^20.0.0"
+  },
   "devDependencies": {
-    "ts-morph": "^20.0.0",
+    "@types/debug": "^4.1.9",
     "ts-node": "^10.9.1",
     "typescript": "^5.2.2"
   }

packages/ts-simplify/src/simplify-types.ts

@@ -1,24 +1,30 @@
+import debug from "debug";
 import { Project, TypeFormatFlags } from "ts-morph";
 
-const logger = {
-  info(...messages: any[]): void {
-    console.log(...messages);
-  },
-};
+namespace logger {
+  const base = debug("ts-simplify");
+  export const info = base.extend("info");
+  export const warn = base.extend("warn");
+  export const error = base.extend("error");
+}
 
-export function simplifyTypes({ source = "", output = "" }) {
+export function simplifyTypes(config: { sourceFile: string }) {
   const project = new Project({
     tsConfigFilePath: "tsconfig.json",
     skipAddingFilesFromTsConfig: true,
   });
-  const sourceFile = project.addSourceFileAtPath(source);
+  logger.info(`Loading source file at ${config.sourceFile}`);
+
+  const sourceFile = project.addSourceFileAtPath(config.sourceFile);
 
   const sourceTypes = sourceFile.getTypeAliases().filter((type) => type.isExported());
 
+  logger.info(`Source file exports ${sourceTypes.length} types: ${sourceTypes.map((t) => t.getName()).join(", ")}`);
+
   const simplifiedFile = project.createSourceFile(
     "./virtual/simplified.ts",
     unindent(`
-      import * as SOURCES from '../${source}';
+      import * as SOURCES from '../${config.sourceFile}';
 
       type SimplifyDeep<T> = T extends object
         ? T extends infer O
@@ -38,7 +44,7 @@ export function simplifyTypes({ source = "", output = "" }) {
   );
 
   const outputFile = project.createSourceFile(
-    output || "./virtual/output.ts",
+    "./virtual/output.ts",
     `
       // Generated by ts-simplify
     `,
@@ -59,12 +65,18 @@ export function simplifyTypes({ source = "", output = "" }) {
       type: expandedType,
     });
   }
-  console.log(simplifiedFile.getText({ includeJsDocComments: true }));
-  console.log(outputFile.getText({ includeJsDocComments: true }));
+
+  const outputText = unindent(`
+    // Generated by ts-simplify
+    // Original source: ${config.sourceFile}
+    ${outputFile.getText()}
+  `);
+
+  return outputText;
 }
 
 function unindent(str: string) {
   const lines = str.split("\n");
-  const indent = lines[0].match(/^\s*/)![0];
+  const indent = lines[1].match(/^\s*/)![0];
   return lines.map((line) => line.replace(indent, "")).join("\n");
 }