From 64745d0b10be524dda1cc2c7644f7be15961c811 Mon Sep 17 00:00:00 2001
From: HuxleyBerry <huxley.berry@gmail.com>
Date: Fri, 7 Mar 2025 04:35:27 +0000
Subject: [PATCH 1/2] add signals to delete files

---
 client/src/views/EmailVerificationView.vue |  2 +-
 client/src/views/ForgotPasswordView.vue    |  2 +-
 server/bingo/apps.py                       |  3 ++
 server/bingo/signals.py                    | 38 ++++++++++++++++++++++
 4 files changed, 43 insertions(+), 2 deletions(-)
 create mode 100644 server/bingo/signals.py

diff --git a/client/src/views/EmailVerificationView.vue b/client/src/views/EmailVerificationView.vue
index 3c7a423f..61cb89d5 100644
--- a/client/src/views/EmailVerificationView.vue
+++ b/client/src/views/EmailVerificationView.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { defineProps, onMounted, ref } from 'vue'
+import { onMounted, ref } from 'vue'
 import { useMessageStore } from '@/stores/message'
 import { useRouter } from 'vue-router'
 import { useUserStore } from '@/stores/user'
diff --git a/client/src/views/ForgotPasswordView.vue b/client/src/views/ForgotPasswordView.vue
index 2610ad9f..2b73e832 100644
--- a/client/src/views/ForgotPasswordView.vue
+++ b/client/src/views/ForgotPasswordView.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { defineProps, onMounted, ref } from 'vue'
+import { onMounted, ref } from 'vue'
 import { useMessageStore } from '@/stores/message'
 import { useUserStore } from '@/stores/user'
 import { useModalStore } from '@/stores/modal'
diff --git a/server/bingo/apps.py b/server/bingo/apps.py
index 4f7570fd..dde4bf63 100644
--- a/server/bingo/apps.py
+++ b/server/bingo/apps.py
@@ -4,3 +4,6 @@
 class BingoConfig(AppConfig):
     default_auto_field = "django.db.models.BigAutoField"
     name = "bingo"
+
+    def ready(self):
+        import bingo.signals
diff --git a/server/bingo/signals.py b/server/bingo/signals.py
new file mode 100644
index 00000000..5675c704
--- /dev/null
+++ b/server/bingo/signals.py
@@ -0,0 +1,38 @@
+from .models import TileInteraction
+import os
+from django.dispatch import receiver
+from django.db.models.signals import post_delete, pre_save
+
+# modified from https://stackoverflow.com/a/16041527
+
+
+@receiver(post_delete, sender=TileInteraction)
+def auto_delete_file_on_delete(sender, instance, **kwargs):
+    """
+    Deletes file from filesystem
+    when corresponding `TileInteraction` object is deleted.
+    """
+    if instance.image:
+        if os.path.isfile(instance.image.path):
+            os.remove(instance.image.path)
+
+
+@receiver(pre_save, sender=TileInteraction)
+def auto_delete_file_on_change(sender, instance, **kwargs):
+    """
+    Deletes old file from filesystem
+    when corresponding `TileInteraction` object is updated
+    with new file.
+    """
+    if not instance.pk:
+        return False
+
+    try:
+        old_image = TileInteraction.objects.get(pk=instance.pk).image
+    except TileInteraction.DoesNotExist:
+        return False
+
+    new_image = instance.image
+    if old_image and not old_image == new_image:
+        if os.path.isfile(old_image.path):
+            os.remove(old_image.path)

From 66fd1d60cff41e24bff3243fabcbd87820d9c046 Mon Sep 17 00:00:00 2001
From: HuxleyBerry <huxley.berry@gmail.com>
Date: Fri, 7 Mar 2025 04:40:25 +0000
Subject: [PATCH 2/2] fix flake8 error

---
 server/bingo/apps.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/bingo/apps.py b/server/bingo/apps.py
index dde4bf63..d7b18df2 100644
--- a/server/bingo/apps.py
+++ b/server/bingo/apps.py
@@ -6,4 +6,4 @@ class BingoConfig(AppConfig):
     name = "bingo"
 
     def ready(self):
-        import bingo.signals
+        import bingo.signals  # noqa