fix black and add pre-commit hook

.pre-commit-config.yaml

@@ -0,0 +1,14 @@
+# See https://pre-commit.com for more information
+# See https://pre-commit.com/hooks.html for more hooks
+repos:
+-   repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v3.2.0
+    hooks:
+    -   id: trailing-whitespace
+    -   id: end-of-file-fixer
+    -   id: check-yaml
+    -   id: check-added-large-files
+-   repo: https://github.com/psf/black
+    rev: 24.4.2
+    hooks:
+    -   id: black

shiny_invoice/ui_existing_invoices.py

@@ -8,6 +8,7 @@
 from tinydb import TinyDB, Query
 from tinydb.operations import set
 
+
 @module.ui
 def existing_invoices_ui():
     """Defines the shiny ui for existing invoices"""
@@ -66,7 +67,12 @@ def get_filtered_invoices() -> pd.DataFrame | str:
         df["Created At"] = df["Created At"].apply(lambda x: x.strftime("%d.%m.%Y"))
         df["Due Date"] = df["Due Date"].apply(lambda x: x.strftime("%d.%m.%Y"))
         df["Paid At"] = df["Paid At"].apply(
-            lambda x: datetime.datetime.strptime(x, "%Y-%m-%d").strftime("%d.%m.%Y") if x != "Unpaid" else "Unpaid")
+            lambda x: (
+                datetime.datetime.strptime(x, "%Y-%m-%d").strftime("%d.%m.%Y")
+                if x != "Unpaid"
+                else "Unpaid"
+            )
+        )
         return df
 
     def _filter_invoices(df):
@@ -110,12 +116,14 @@ def patch_table(patch):
             Invoices = Query()
             invoice_id = table_data.iloc[patch.get("row_index")]["Id"]
             parsed_date = datetime.datetime.strptime(patch.get("value"), "%d.%m.%Y")
-            datastore.update(set("paid_at", parsed_date.strftime("%Y-%m-%d")), Invoices.id == invoice_id)
+            datastore.update(
+                set("paid_at", parsed_date.strftime("%Y-%m-%d")), Invoices.id == invoice_id
+            )
         except Exception:
             ui.notification_show(
                 "Error while updating invoice, please only use the date format '%d.%m.%Y'.",
                 type="error",
-                duration=6
+                duration=6,
             )
         return patch.get("value")
 

shiny_invoice/ui_new_invoice.py

@@ -53,7 +53,6 @@ def new_invoice_ui(config):
 
 @module.server
 def new_invoice_server(input, output, session, config):
-
     datastore = TinyDB(config.get("paths").get("datastore"))
 
     with open(Path(config.get("paths").get("html_template")), "r", encoding="utf8") as file:
@@ -81,8 +80,10 @@ def invoice_number_ui():
         invoice_ids = [int(invoice.get("Id")) for invoice in datastore.all()]
         next_id = 1
         if invoice_ids:
-            next_id = max(invoice_ids) +1
-        number_ui = ui.input_text(id="invoice_number", label="Invoice Number", value=str(next_id), width="100%")
+            next_id = max(invoice_ids) + 1
+        number_ui = ui.input_text(
+            id="invoice_number", label="Invoice Number", value=str(next_id), width="100%"
+        )
         return number_ui
 
     @render.ui
@@ -112,23 +113,22 @@ def already_existing_id_modal():
     )
     def download_button():
         """Download the currently created invoice"""
-        datastore.insert({
-            "Id": input.invoice_number(),
-            "Created At": str(input.created_at_date()),
-            "Due Date": str(input.due_date()),
-            "Paid At": "Unpaid",
-            "Customer": customer_name(),
-        })
+        datastore.insert(
+            {
+                "Id": input.invoice_number(),
+                "Created At": str(input.created_at_date()),
+                "Due Date": str(input.due_date()),
+                "Paid At": "Unpaid",
+                "Customer": customer_name(),
+            }
+        )
         ui.notification_show(
-            "Reload page to update 'Existing Invoices' view.",
-            type="message",
-            duration=None
+            "Reload page to update 'Existing Invoices' view.", type="message", duration=None
         )
         with io.BytesIO() as buf:
             buf.write(render_invoice().encode("utf8"))
             yield buf.getvalue()
 
-
     @reactive.calc
     def render_invoice():
         total_net = calculate_totals()