feat: extend inventory and administration workflows

src/ccma/ui/claim_tab.py

@@ -88,8 +88,10 @@ class ClaimTab(ttk.Frame):
         footer.columnconfigure(0, weight=1)
         self.hold_button = ttk.Button(footer, text="Mahnsperre setzen", command=self._toggle_hold)
         self.hold_button.grid(row=0, column=0, sticky="w")
+        self.edit_button = ttk.Button(footer, text="Forderung bearbeiten", command=self._edit_claim)
+        self.edit_button.grid(row=0, column=1, sticky="e", padx=(0, 8))
         self.cancel_button = ttk.Button(footer, text="Forderung stornieren", command=self._cancel_claim)
-        self.cancel_button.grid(row=0, column=1, sticky="e")
+        self.cancel_button.grid(row=0, column=2, sticky="e")
 
     def _build_ledger(self) -> None:
         ledger = ttk.Frame(self, padding=12)
@@ -185,6 +187,7 @@ class ClaimTab(ttk.Frame):
         self.summary_vars["balance"].set(f"{money_text(balance)} EUR")
         self.summary_vars["status"].set(CLAIM_STATUS_LABELS.get(status, status.upper()))
         self.cancel_button.configure(state="disabled" if status == "cancelled" else "normal")
+        self.edit_button.configure(state="disabled" if status == "cancelled" else "normal")
         self.hold_button.configure(text="Mahnsperre aufheben" if hold.get("active") else "Mahnsperre setzen")
         self._render_ledger()
 
@@ -478,6 +481,16 @@ class ClaimTab(ttk.Frame):
             return
         self._changed()
 
+    def _edit_claim(self) -> None:
+        ClaimEditDialog(
+            self,
+            self.repository,
+            self.member_id,
+            self.claim_id,
+            self.claim,
+            self._changed,
+        )
+
     def _changed(self) -> None:
         self.refresh()
         self.on_changed()
@@ -502,6 +515,68 @@ class _Dialog(tk.Toplevel):
         ttk.Button(buttons, text="Speichern", style="Accent.TButton", command=command).pack(side="left")
 
 
+class ClaimEditDialog(_Dialog):
+    def __init__(self, master, repository, member_id, claim_id, claim, on_saved):
+        super().__init__(master, "Forderung bearbeiten", on_saved)
+        self.repository = repository
+        self.member_id = member_id
+        self.claim_id = claim_id
+        items = claim_items(claim)
+        base_item = next(
+            (item for item in items if str(item.get("type", "")) == "base"),
+            items[0] if items else {},
+        )
+        self.variables = {
+            "title": tk.StringVar(value=str(claim.get("title", ""))),
+            "due_date": tk.StringVar(
+                value=format_date_for_display(str(claim.get("due_date", "")))
+            ),
+            "base_amount": tk.StringVar(
+                value=str(base_item.get("amount", claim.get("amount", "")))
+            ),
+            "description": tk.StringVar(value=str(base_item.get("description", ""))),
+        }
+        fields = (
+            ("Titel", "title"),
+            (f"Fällig am ({date_input_hint()})", "due_date"),
+            ("Grundbetrag", "base_amount"),
+            ("Beschreibung der Grundposition", "description"),
+        )
+        for row, (label, key) in enumerate(fields):
+            ttk.Label(self.frame, text=label).grid(
+                row=row, column=0, sticky="w", pady=5, padx=(0, 12)
+            )
+            ttk.Entry(self.frame, textvariable=self.variables[key], width=52).grid(
+                row=row, column=1, sticky="ew", pady=5
+            )
+        ttk.Label(
+            self.frame,
+            text=(
+                "Der Grundbetrag ändert nur die Grundposition. Weitere Positionen, "
+                "zum Beispiel Mahngebühren, bleiben erhalten."
+            ),
+            style="Mono.TLabel",
+            wraplength=520,
+        ).grid(row=len(fields), column=0, columnspan=2, sticky="w", pady=(8, 0))
+        self._buttons(len(fields) + 1, self._save)
+
+    def _save(self) -> None:
+        try:
+            self.repository.update_claim(
+                self.member_id,
+                self.claim_id,
+                title=self.variables["title"].get(),
+                due_date=self.variables["due_date"].get(),
+                base_amount=self.variables["base_amount"].get(),
+                description=self.variables["description"].get(),
+            )
+        except RepositoryError as exc:
+            messagebox.showerror("Forderung konnte nicht gespeichert werden", str(exc), parent=self)
+            return
+        self.destroy()
+        self.on_saved()
+
+
 class ItemDialog(_Dialog):
     def __init__(self, master, repository, member_id, claim_id, on_saved):
         super().__init__(master, "Forderungsposition hinzufügen", on_saved)
@@ -634,7 +709,11 @@ class AllocatePaymentDialog(_Dialog):
         self.repository, self.member_id, self.claim_id = repository, member_id, claim_id
         data = repository.get_contributions(member_id)
         self.payment_by_label = {}
-        for payment in data.payments:
+        for payment in sorted(
+            data.payments,
+            key=lambda item: (str(item.get("date", "")), str(item.get("created_at", ""))),
+            reverse=True,
+        ):
             payment_id = str(payment.get("payment_id", ""))
             available = decimal_value(payment.get("amount", "0")) - payment_allocated_total(data, payment_id)
             if available <= 0:
@@ -655,10 +734,23 @@ class AllocatePaymentDialog(_Dialog):
             width=60,
         )
         combo.grid(row=0, column=1, pady=5)
-        ttk.Label(self.frame, text="Betrag").grid(row=1, column=0, sticky="w", pady=5, padx=(0, 12))
-        ttk.Entry(self.frame, textvariable=self.amount_var).grid(row=1, column=1, sticky="ew", pady=5)
+        if not self.payment_by_label:
+            ttk.Label(
+                self.frame,
+                text="Für dieses Mitglied gibt es keine Zahlung mit freiem Restbetrag.",
+                style="Mono.TLabel",
+            ).grid(row=1, column=0, columnspan=2, sticky="w", pady=(3, 5))
+            amount_row = 2
+        else:
+            amount_row = 1
+        ttk.Label(self.frame, text="Betrag").grid(
+            row=amount_row, column=0, sticky="w", pady=5, padx=(0, 12)
+        )
+        ttk.Entry(self.frame, textvariable=self.amount_var).grid(
+            row=amount_row, column=1, sticky="ew", pady=5
+        )
         combo.bind("<<ComboboxSelected>>", lambda _event: self._select(balance))
-        self._buttons(2, self._save)
+        self._buttons(amount_row + 1, self._save)
 
     def _select(self, balance):
         _payment_id, available = self.payment_by_label[self.payment_var.get()]