initial cli api, some movement on tool selection

tools/checkCode.ts

@@ -0,0 +1,59 @@
+import { PDFDocument } from "pdf-lib";
+import { loadPdfForm } from "../util/saveLoadPdf.ts";
+import { callWithArgPrompt } from "util/call.ts";
+
+export async function checkFile(pdfPath: string, csPath: string) {
+  while (!pdfPath || !pdfPath.endsWith(".pdf")) {
+    pdfPath = prompt("Please provide path to PDF file:") || "";
+  }
+  while (!csPath || !csPath.endsWith(".cs")) {
+    csPath = prompt("Please provide path to CS class file:") || "";
+  }
+
+  const form = await loadPdfForm(pdfPath);
+
+  const fields = form.getFields();
+  const csFiles = await Promise.all(
+    csPath.split(",").map((c) => Deno.readTextFile(c.trim())),
+  );
+
+  const fieldNames: string[] = fields.map((f) => f.getName())
+    .filter((f) => {
+      const rx = new RegExp(
+        `(?<!//\s?)case ?"${f.replace(/\[\d\]/, "\\[\\?\\]")}"`,
+      );
+      return !csFiles.some((c) => rx.test(c));
+    })
+    .filter((f) => !f.toLowerCase().includes("signature"));
+
+  if (fieldNames.length) {
+    console.log(
+      "%cThe following field names are not present in the CS code",
+      "color: red",
+    );
+    console.log(fieldNames);
+    alert("Your princess is in another castle...");
+  } else {
+    console.log("%cAll form fields present", "color: lime");
+    alert("Ok!");
+  }
+}
+
+class CheckCode implements ITool {
+  name = "checkcode";
+  description = "Checks if form fields are present in CS code";
+  help() {
+    console.log("Usage: checkcode <pdfPath> <csPath>");
+  }
+  async run(...args: string[]) {
+    await callWithArgPrompt(checkFile, [
+      ["Please provide path to PDF file:", (p) => !!p && p.endsWith(".pdf")],
+      [
+        "Please provide path to CS file (comma separated for multiple):",
+        (p) => !!p && p.endsWith(".cs"),
+      ],
+    ], args);
+  }
+}
+
+export default new CheckCode();