Stop after 3 successful deliveries instead of time-based expiry

Replaces the 7-day timer with a success counter. Cron auto-removes
itself once 3 faxes are confirmed COMPLETED. ntfy notifications
include delivery progress (e.g. "Delivered: 2/3").

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

autofax.py

@@ -235,31 +235,37 @@ def update_previous_statuses(entries: list[dict]) -> list[dict]:
     return entries
 
 
-def check_expiry():
-    """If past the expiry date, remove cron and exit."""
-    expires_file = config.REPORTS_DIR / ".expires"
-    if not expires_file.exists():
-        return
-    try:
-        expiry = datetime.fromisoformat(expires_file.read_text().strip())
-        if datetime.now() >= expiry:
-            print("AutoFax expired. Removing cron job.")
-            result = subprocess.run(["crontab", "-l"], capture_output=True, text=True)
-            lines = [l for l in result.stdout.splitlines() if "autofax" not in l]
-            subprocess.run(["crontab", "-"], input="\n".join(lines) + "\n", text=True)
-            notify("AutoFax Expired", "7-day schedule complete. Cron job removed.")
-            sys.exit(0)
-    except Exception:
-        pass
+REQUIRED_SUCCESSES = 3
+
+
+def count_successes(entries: list[dict]) -> int:
+    return sum(1 for e in entries if e["status"] == "COMPLETED")
+
+
+def check_done(entries: list[dict]):
+    """If we have enough successful deliveries, remove cron and exit."""
+    successes = count_successes(entries)
+    if successes >= REQUIRED_SUCCESSES:
+        print(f"AutoFax complete: {successes} successful deliveries. Removing cron job.")
+        result = subprocess.run(["crontab", "-l"], capture_output=True, text=True)
+        lines = [l for l in result.stdout.splitlines() if "autofax" not in l]
+        subprocess.run(["crontab", "-"], input="\n".join(lines) + "\n", text=True)
+        notify(
+            "AutoFax Complete",
+            f"{successes} faxes delivered successfully to {entries[-1].get('to', 'N/A')}. Cron job removed.",
+        )
+        sys.exit(0)
 
 
 def main():
-    check_expiry()
     pdf_path = find_claim_pdf()
 
     entries = load_log()
     entries = update_previous_statuses(entries)
 
+    # Check if we already hit the target after updating statuses
+    check_done(entries)
+
     print(f"Sending fax: {pdf_path.name} -> {config.FAX_TO_NUMBER}")
     result = send_fax(pdf_path)
     entries.append(result)
@@ -277,6 +283,7 @@ def main():
     report_path = generate_report(entries)
 
     # Notify via ntfy
+    successes = count_successes(entries)
     status_labels = {
         "COMPLETED": "Fax Delivered",
         "IN_PROGRESS": "Fax Sending",
@@ -284,14 +291,21 @@ def main():
     }
     subject = status_labels.get(result["status"], "Fax Failed")
     msg = f"To: {result['to']}\nStatus: {result['status']}\nFile: {result['file']}"
+    msg += f"\nDelivered: {successes}/{REQUIRED_SUCCESSES}"
     if result.get("error"):
         msg += f"\nError: {result['error']}"
     priority = "high" if result["status"] not in ("QUEUED", "IN_PROGRESS", "COMPLETED") else "default"
     notify(subject, msg, priority)
 
     print(f"Status: {result['status']}")
+    print(f"Delivered: {successes}/{REQUIRED_SUCCESSES}")
     print(f"Report: {report_path}")
 
+    # Check if this delivery hit the target
+    save_log(entries)
+    generate_report(entries)
+    check_done(entries)
+
     if result["status"] == "send_failed":
         sys.exit(1)