Feat: add delete edition dialog with fuzzy search

src/ui/dialogs/deletedialog.py

@@ -0,0 +1,129 @@
+from typing import Any
+
+from PySide6 import QtCore, QtWidgets
+
+from src import Icon
+from src.backend.database import Database
+
+from .dialog_sources.deletedialog_ui import Ui_Dialog
+
+
+class DeleteDialog(QtWidgets.QDialog, Ui_Dialog):
+    def __init__(self):
+        super().__init__()
+        self.setupUi(self)
+        self.setWindowTitle("Medien löschen")
+        self.setWindowIcon(Icon("trash").icon)
+        self.reset_btn.clicked.connect(self.reset_selection)
+        self.cancel_btn.clicked.connect(self.close)
+        self.delete_btn.clicked.connect(self.delete_selected)
+
+        self.db = Database()
+        self.books = self.setBooks()
+        self.lineEdit.textChanged.connect(self.populate_books)
+        self.populate_books()
+
+    def delete_selected(self):
+        to_delete = []
+        for row in range(self.tableWidget.rowCount()):
+            checkbox = self.tableWidget.cellWidget(row, 0)
+            if checkbox is not None and checkbox.isChecked():
+                book_id_item = self.tableWidget.item(row, 6)
+                if book_id_item is not None:
+                    book_id = int(book_id_item.text())
+                    to_delete.append(book_id)
+        if to_delete:
+            self.db.deleteBooks(to_delete)
+        self.accept()
+
+    def reset_selection(self):
+        for row in range(self.tableWidget.rowCount()):
+            checkbox = self.tableWidget.cellWidget(row, 0)
+            if checkbox is not None:
+                checkbox.setChecked(False)
+
+    def setBooks(self) -> list[dict[str, Any]]:
+        result: list[dict[str, Any]] = []
+        books = self.db.getAllBooks()
+        for book in books:
+            title = book["bookdata"].title
+            signature = book["bookdata"].signature
+            edition = book["bookdata"].edition
+            appnr = self.db.getApparatNrByBookId(book["id"])
+            result.append(
+                {
+                    "id": book["id"],
+                    "appnr": appnr,
+                    "title": title,
+                    "signature": signature,
+                    "edition": edition,
+                }
+            )
+        return result
+
+    def populate_books(self):
+        searchterm = self.lineEdit.text().lower()
+        self.tableWidget.setRowCount(0)
+        for book in self.books:
+            checkbox = QtWidgets.QCheckBox()
+            app_nr = book["appnr"]
+            title = book["title"]
+            signature = book["signature"]
+            edition = book["edition"] if book["edition"] else ""
+
+            if searchterm in title.lower() or searchterm in signature.lower():
+                self.tableWidget.insertRow(self.tableWidget.rowCount())
+                self.tableWidget.setCellWidget(
+                    self.tableWidget.rowCount() - 1, 0, checkbox
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    1,
+                    QtWidgets.QTableWidgetItem(str(app_nr)),
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    2,
+                    QtWidgets.QTableWidgetItem(signature),
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    3,
+                    QtWidgets.QTableWidgetItem(title),
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    4,
+                    QtWidgets.QTableWidgetItem(edition),
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    5,
+                    QtWidgets.QTableWidgetItem(""),
+                )
+                self.tableWidget.setItem(
+                    self.tableWidget.rowCount() - 1,
+                    6,
+                    QtWidgets.QTableWidgetItem(str(book["id"])),
+                )
+            else:
+                continue
+        # set column signature to be 10px wider than the longest entry
+        self.tableWidget.setColumnWidth(1, 100)
+        self.tableWidget.setColumnWidth(2, 150)
+        self.tableWidget.setColumnWidth(3, 150)
+        self.tableWidget.setColumnWidth(4, 100)
+
+        self.tableWidget.setColumnWidth(0, 50)
+        # horizontal header 0 should be centered
+        self.tableWidget.horizontalHeader().setDefaultAlignment(
+            QtCore.Qt.AlignmentFlag.AlignCenter
+        )
+
+
+def launch():
+    app = QtWidgets.QApplication.instance()
+    if app is None:
+        app = QtWidgets.QApplication([])
+    dialog = DeleteDialog()
+    dialog.exec()