From 19eaf2d66443a98a070f71bcd9247345a9d826cd Mon Sep 17 00:00:00 2001
From: Emma <emma@cyborggrizzly.com>
Date: Tue, 20 May 2025 09:55:52 -0600
Subject: [PATCH] feat: field rename multiple files

---
 README.md            |  3 +-
 tools/fieldRename.ts | 69 ++++++++++++++++++++++++--------------------
 2 files changed, 40 insertions(+), 32 deletions(-)

diff --git a/README.md b/README.md
index 82be0dd..2b194b6 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,8 @@ Deno >=2.2 (not required if downloading .exe)
 
 ### Deno install
 
-`deno task install` -> installs as global command `checkfields`
+`deno install -g --allow-read --allow-write --allow-net --allow-env jsr:@bearmetal/pdf-tools`
+-> installs as global command `pdf-tools`
 
 ### Compile
 
diff --git a/tools/fieldRename.ts b/tools/fieldRename.ts
index dedda92..e99b4e9 100644
--- a/tools/fieldRename.ts
+++ b/tools/fieldRename.ts
@@ -103,50 +103,57 @@ class RenameFields implements ITool {
     [pdfPath, pattern, change] = await forceArgs(
       [pdfPath, pattern, change],
       [
-        ["Please provide path to PDF:", (p) => !!p && p.endsWith(".pdf")],
+        [
+          "Please provide path to PDF (comma separated for multiple):",
+          (p) => !!p && p.endsWith(".pdf"),
+        ],
         "Please provide search string:",
         "Please provide requested change:",
       ],
       this.block,
     );
 
-    const patternRegex = new RegExp(pattern);
+    const paths = pdfPath.split(",");
 
-    const pdf = await loadPdf(pdfPath);
-    const form = pdf.getForm();
-    const fields = form.getFields();
+    for (const pdfPath of paths) {
+      const patternRegex = new RegExp(pattern);
 
-    const foundUpdates: [string, callback][] = [];
+      const pdf = await loadPdf(pdfPath);
+      const form = pdf.getForm();
+      const fields = form.getFields();
 
-    for (const field of fields) {
-      const name = field.getName();
-      const match = patternRegex.exec(name);
-      if (match) {
-        const toChange = evaluateChange(change, match);
-        const preview = name.replace(new RegExp(patternRegex), toChange);
-        foundUpdates.push([
-          `${colorize(name, "red")} -> ${colorize(preview, "green")}`,
-          () => {
-            applyRename(field, name, patternRegex, toChange);
-          },
-        ]);
+      const foundUpdates: [string, callback][] = [];
+
+      for (const field of fields) {
+        const name = field.getName();
+        const match = patternRegex.exec(name);
+        if (match) {
+          const toChange = evaluateChange(change, match);
+          const preview = name.replace(new RegExp(patternRegex), toChange);
+          foundUpdates.push([
+            `${colorize(name, "red")} -> ${colorize(preview, "green")}`,
+            () => {
+              applyRename(field, name, patternRegex, toChange);
+            },
+          ]);
+        }
       }
-    }
 
-    if (foundUpdates.length) {
-      cliLog("Found updates:", this.block);
-      await multiSelectMenuInteractive(
-        "Please select an option to apply",
-        foundUpdates,
-        { terminalBlock: this.block },
+      if (foundUpdates.length) {
+        cliLog("Found updates:", this.block);
+        await multiSelectMenuInteractive(
+          "Please select an option to apply",
+          foundUpdates,
+          { terminalBlock: this.block },
+        );
+      }
+
+      const path = await cliPrompt(
+        "Save to path (or hit enter to keep current):",
+        this.block,
       );
+      await savePdf(pdf, path || pdfPath);
     }
-
-    const path = await cliPrompt(
-      "Save to path (or hit enter to keep current):",
-      this.block,
-    );
-    await savePdf(pdf, path || pdfPath);
   }
 }
 export default new RenameFields();