From 8ef50fc67edd908f455927cc903ec4c72d595105 Mon Sep 17 00:00:00 2001
From: Fritz Grimpen <grimpen@uni-bremen.de>
Date: Sat, 7 Sep 2024 17:43:35 +0200
Subject: [PATCH] =?UTF-8?q?reify=20script=20f=C3=BCr=20sepa-mandate?=
MIME-Version: 1.0
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---
 .gitignore            |  2 +
 sepa-mandate/reify.py | 99 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 101 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 sepa-mandate/reify.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..342d9dd
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+output/
+build/
diff --git a/sepa-mandate/reify.py b/sepa-mandate/reify.py
new file mode 100644
index 0000000..3259a30
--- /dev/null
+++ b/sepa-mandate/reify.py
@@ -0,0 +1,99 @@
+#!/bin/env python3
+
+import csv
+import subprocess
+import email.message
+import email.utils
+import datetime
+import argparse
+import pathlib
+import tempfile
+import shutil
+
+DEFAULT_CSV_FIELDLIST = ("creditor_name", "creditor_iban", "mandate", "recurrence", "date", "email")
+
+def create_tex(mandate):
+    return f'''
+\csdef{{sepa-m001}}{{{mandate['mandate']}}}
+\csdef{{sepa-m006}}{{{mandate['recurrence']}}}
+\csdef{{sepa-p001}}{{{mandate['creditor_name']}}}
+\csdef{{sepa-d001}}{{{mandate['creditor_iban']}}}
+\csdef{{sepa-m008}}{{{mandate['date']}}}
+\csdef{{sepa-m009}}{{\emph{{entfällt}}}}
+\csdef{{sepa-d002a}}{{}}
+\csdef{{sepa-d002b}}{{}}
+\csdef{{sepa-p005}}{{}}
+\csdef{{sepa-remarks}}{{Dieses Mandat ist eine Abschrift des dem Zahlungsempfänger vorliegenden, originalen SEPA-Lastschriftmandats.\\\\
+Erstellt am {datetime.date.today()}}}
+'''
+
+EMAIL_MESSAGE = """Liebes Mitglied,
+
+anbei erhälst du eine Abschrift des SEPA-Lastschriftmandats mit der Mandatsreferenz "{mandate[mandate]}", das zum Einzug deiner Mitgliedsbeiträge bei uns gespeichert ist.
+
+Sollten Angaben in diesem Mandat fehlerhaft oder veraltet sein, so teil uns dies bitte per E-Mail mit an vorstand@ccchb.de.
+
+
+Viele Grüße,
+Vorstand des Chaos Computer Club Bremen e.V.
+"""
+
+def create_email(mandate, pdfmandate):
+    msg = email.message.EmailMessage()
+    msg["To"] = f"{mandate['creditor_name']} <{mandate['email']}>"
+    msg["From"] = "Chaos Computer Club Bremen e.V. <vorstand@ccchb.de>"
+    msg["Subject"] = f"Dein SEPA-Lastschriftmandat (MREF: {mandate['mandate']})"
+    msg["Message-Id"] = email.utils.make_msgid(domain="verein.ccchb.de")
+    msg["Date"] = datetime.datetime.now()
+    msg.set_content(EMAIL_MESSAGE.format(mandate=mandate))
+    msg.add_attachment(pdfmandate, 'application', 'pdf', filename='Lastschriftmandat.pdf')
+    return msg
+
+def main_reify_mandate(mandate, output_dir_path, tex_template_path, tempdir_path, debug):
+    tex_jobname = str(tempdir_path.joinpath(mandate['mandate']))
+    settings_file_path = tempdir_path.joinpath(f'{mandate['mandate']}-settings.tex')
+    with open(settings_file_path, "w") as texfile:
+        texfile.write(create_tex(mandate))
+    latexmk_args = ["latexmk", "-lualatex", str(tex_template_path), f"-jobname={tex_jobname}"]
+    if not debug:
+        latexmk_args.append("-silent")
+    subprocess.run(latexmk_args)
+    pdf_file_path = tempdir_path.joinpath(f'{mandate['mandate']}.pdf')
+    pdf_output_path = output_dir_path.joinpath(f'{mandate['mandate']}.pdf')
+    shutil.copy(pdf_file_path, pdf_output_path)
+    if mandate['email']:
+        mail_output_path = output_dir_path.joinpath(f'{mandate['mandate']}.eml')
+        with open(pdf_file_path, "rb") as pdffile:
+            msg = create_email(mandate, pdffile.read())
+        with open(mail_output_path, "wb") as mailfile:
+            mailfile.write(bytes(msg))
+
+
+def main():
+    argparser = argparse.ArgumentParser()
+    argparser.add_argument("--csv-skip", default=1)
+    argparser.add_argument("--csv-fields", type=lambda s: s.split(","), default=DEFAULT_CSV_FIELDLIST)
+    argparser.add_argument("-O", "--output-dir", default="output/")
+    argparser.add_argument("--build-dir", default="build")
+    argparser.add_argument("--debug", default=False, action="store_true")
+    argparser.add_argument("tex_template")
+    argparser.add_argument("mandate_file")
+    args = argparser.parse_args()
+
+    output_dir_path = pathlib.Path(args.output_dir)
+    # Ensure that the output directory exists
+    output_dir_path.mkdir(parents=True, exist_ok=True)
+    tex_template_path = pathlib.Path(args.tex_template)
+    build_dir_path = pathlib.Path(args.build_dir)
+    # Ensure that the build directory exists
+    build_dir_path.mkdir(parents=True, exist_ok=True)
+
+    with open(args.mandate_file) as csvfile:
+        reader = csv.DictReader(csvfile, fieldnames=args.csv_fields)
+        for mandate in reader:
+            if not mandate.get('mandate'):
+                continue
+            main_reify_mandate(mandate, output_dir_path, tex_template_path, build_dir_path, args.debug)
+
+if __name__ == '__main__':
+    main()