#!/usr/bin/env python3
"""Report whether a saved Thunderbird draft (matched by subject) carries a named
attachment. Usage: check_attachments.py <subject-substring> <attachment-filename>.
Prints "Attachment added!" if found, else "Attachment not found!".

Robust: scans EVERY mbox file under the profile's Mail/ and ImapMail/ trees
(not just a "Drafts" folder, since the draft may land in Local Folders/Drafts or
the account Drafts depending on the identity's draft_folder). Also matches the
attachment by a raw filename scan of the message body as a fallback (Thunderbird
writes `filename="q3-report.pdf"` and/or `name="q3-report.pdf"` in the MIME part).
Emits diagnostics so a run can be debugged from the captured stdout."""
import sys, os, glob, mailbox

def mboxes(home):
    roots = glob.glob(os.path.join(home, ".thunderbird", "*", "Mail")) + \
            glob.glob(os.path.join(home, ".thunderbird", "*", "ImapMail"))
    out = []
    for r in roots:
        for dp, _dirs, files in os.walk(r):
            for f in files:
                if f.endswith(".msf") or f.endswith(".dat"):
                    continue
                out.append(os.path.join(dp, f))
    return out

def main():
    if len(sys.argv) < 3:
        print("Attachment not found!"); return
    subject, fname = sys.argv[1], sys.argv[2]
    home = os.path.expanduser("~")
    files = mboxes(home)
    print("DIAG scanned {} mbox files".format(len(files)))
    for path in files:
        try:
            raw = open(path, "r", encoding="utf-8", errors="replace").read()
        except Exception:
            continue
        if subject.lower() not in raw.lower():
            continue
        print("DIAG subject found in", os.path.basename(path))
        # structured check
        try:
            for msg in mailbox.mbox(path):
                if subject.lower() not in (msg.get("Subject", "") or "").lower():
                    continue
                for part in msg.walk():
                    disp = str(part.get("Content-Disposition") or "")
                    pf = part.get_filename() or ""
                    if "attachment" in disp.lower() and fname.lower() in pf.lower():
                        print("Attachment added!"); return
        except Exception:
            pass
        # raw fallback: the MIME part header names the file
        if ('filename="%s"' % fname).lower() in raw.lower() or \
           ('name="%s"' % fname).lower() in raw.lower():
            print("Attachment added!"); return
    print("Attachment not found!")

main()