✨ admin - price agreement: export all prices in a readable LO Calc document

1 files changed, 39 insertions, 2 deletions

diff --git a/archaeological_files/admin.py b/archaeological_files/admin.py
index 3313c6b02..d7b0a763a 100644
--- a/archaeological_files/admin.py
+++ b/archaeological_files/admin.py
@@ -17,9 +17,14 @@
 
 # See the file COPYING for details.
 
+from io import BytesIO
+import os
+import tempfile
+
 from django import forms
 from django.conf import settings
-from django.http import HttpResponseRedirect
+from django.contrib import messages
+from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
 from django.urls import re_path, reverse
 from django.utils.translation import gettext_lazy as _
@@ -255,13 +260,45 @@ class CopyPriceAgreementAdmin(GeneralTypeAdmin):
         )
 
 
+def export_prices(modeladmin, request, queryset):
+    if len(queryset) != 1:
+        error = str(_("Select only one price agreement."))
+        modeladmin.message_user(request, error, level=messages.WARNING)
+        return
+    price_agreement = queryset[0]
+    with tempfile.TemporaryDirectory(prefix="ishtar-prices") as tmpdir:
+        pa_doc = price_agreement.generate_summary_document(tmpdir)
+        if not pa_doc:
+            modeladmin.message_user(
+                request,
+                str(_("Document not generated: is the LibreOffice daemon configured and running?")),
+                level=messages.ERROR
+            )
+            return
+
+        in_memory = BytesIO()
+        with open(pa_doc, "rb") as fle:
+            in_memory.write(fle.read())
+            filename = pa_doc.split(os.sep)[-1].replace(" ", "_")
+            response = HttpResponse(
+                content_type="application/vnd.oasis.opendocument.spreadsheet"
+            )
+            response["Content-Disposition"] = f"attachment; filename={filename}"
+            in_memory.seek(0)
+            response.write(in_memory.read())
+            return response
+
+
+export_prices.short_description = _("Export prices")
+
+
 class PriceAgreementAdmin(CopyPriceAgreementAdmin):
     list_filter = ("available",)
     extra_list_display = [
         "start_date",
         "end_date",
     ]
-    actions = []
+    actions = [export_prices]
     model = models.PriceAgreement