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dialog.py
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from PySide6.QtGui import QIcon, QValidator, QRegularExpressionValidator, QIntValidator, QTextOption
from PySide6.QtWidgets import (QDialog, QWidget, QFormLayout, QHBoxLayout, QLineEdit, QComboBox, QPushButton, QSpacerItem,
QCheckBox, QTextEdit, QMessageBox, QSizePolicy)
from google.cloud.compute_v1 import Tags, Metadata, Items
from widget import Heading
class Dialog(QDialog):
def __init__(self, parent: QWidget = None) -> None:
super().__init__(parent)
self.setWindowIcon(QIcon("images/logo.ico"))
# noinspection PyAttributeOutsideInit
class CreateInstanceDialog(Dialog):
INSTANCE_MACHINE_TYPES = [
("E2 Micro (2 vCPU, 1 core, 1 GB memory)", "e2-micro"),
("E2 Small (2 vCPU, 1 core, 2 GB memory)", "e2-small"),
("E2 Medium (2 vCPU, 2 core, 4 GB memory)", "e2-medium")
]
INSTANCE_NETWORK_TIERS = [
("Standard", "STANDARD"),
("Premium", "PREMIUM")
]
INSTANCE_IMAGES = [
("Debian 12", "projects/debian-cloud/global/images/family/debian-12"),
("Debian 11", "projects/debian-cloud/global/images/family/debian-11"),
("Debian 10", "projects/debian-cloud/global/images/family/debian-10"),
]
def __init__(self, parent: QWidget = None) -> None:
super().__init__(parent)
self.setWindowTitle("Create Instance")
self.resize(800, 1)
self.init_widgets()
self.update_widgets()
def init_widgets(self) -> None:
self.input_instance_name = QLineEdit()
self.input_instance_name.setValidator(QRegularExpressionValidator(r"^[a-z]([-a-z0-9]{0,61}[a-z0-9])?$"))
self.input_instance_description = QLineEdit()
self.input_instance_hostname = QLineEdit()
self.input_instance_hostname.setValidator(QRegularExpressionValidator(
r"^[a-z]([-a-z0-9]{0,61}[a-z0-9])?(\.[a-z]([-a-z0-9]{0,61}[a-z0-9])?)+$")
)
self.input_instance_machine_type = QComboBox()
self.input_instance_network_tier = QComboBox()
self.input_instance_disk_size = QLineEdit("10")
self.input_instance_disk_size.setValidator(QIntValidator(1, 65536))
self.input_instance_image = QComboBox()
button_create = QPushButton("Create")
button_create.clicked.connect(self.button_create_clicked)
layout = QFormLayout()
layout.addItem(QSpacerItem(0, 6))
layout.addRow(Heading("Basic Information", 6, "bold"))
layout.addItem(QSpacerItem(0, 6))
layout.addRow("Name", self.input_instance_name)
layout.addRow("Description", self.input_instance_description)
layout.addRow("Hostname", self.input_instance_hostname)
layout.addItem(QSpacerItem(0, 6))
layout.addRow(Heading("Machine Configuration", 6, "bold"))
layout.addItem(QSpacerItem(0, 6))
layout.addRow("Machine Type", self.input_instance_machine_type)
layout.addItem(QSpacerItem(0, 6))
layout.addRow(Heading("Network Interface", 6, "bold"))
layout.addItem(QSpacerItem(0, 6))
layout.addRow("Network Tier", self.input_instance_network_tier)
layout.addItem(QSpacerItem(0, 6))
layout.addRow(Heading("Storage", 6, "bold"))
layout.addItem(QSpacerItem(0, 6))
layout.addRow("Disk Size (GB)", self.input_instance_disk_size)
layout.addRow("Image", self.input_instance_image)
layout.addItem(QSpacerItem(0, 10, QSizePolicy.Expanding, QSizePolicy.MinimumExpanding))
layout.addRow(button_create)
self.setLayout(layout)
def update_widgets(self) -> None:
for machine_type, machine_type_id in self.INSTANCE_MACHINE_TYPES:
self.input_instance_machine_type.addItem(machine_type, machine_type_id)
self.input_instance_machine_type.setCurrentIndex(1)
for network_tier, network_tier_id in self.INSTANCE_NETWORK_TIERS:
self.input_instance_network_tier.addItem(network_tier, network_tier_id)
self.input_instance_network_tier.setCurrentIndex(1)
for image, image_id in self.INSTANCE_IMAGES:
self.input_instance_image.addItem(image, image_id)
self.input_instance_image.setCurrentIndex(1)
def button_create_clicked(self) -> None:
state, _, _ = self.input_instance_name.validator().validate(self.input_instance_name.text(), 0)
if state != QValidator.State.Acceptable:
return QMessageBox.warning(
self,
"Instance Name Invalid",
"Instance name must start with a lowercase letter followed by up to 62 lowercase letters, numbers, or "
"hyphens, and cannot end with a hyphen."
)
state, _, _ = self.input_instance_hostname.validator().validate(self.input_instance_hostname.text(), 0)
if self.input_instance_hostname.text() and state != QValidator.State.Acceptable:
return QMessageBox.warning(
self,
"Hostname Invalid",
"""Hostname must follow these rules:
· Use at least 2 labels for your hostname
· Separate labels with dots
· Start your labels with a letter (a-z)
· End them with a letter or a digit (0-9)
· Have letters, digits, or a hyphen (-) in between
· Keep it short (from 4 to 253 characters)""")
self.instance_info = {
"name": self.input_instance_name.text(),
"description": self.input_instance_description.text(),
"hostname": self.input_instance_hostname.text() if self.input_instance_hostname.text() else None,
"machine_type": self.input_instance_machine_type.currentData(),
"network_tier": self.input_instance_network_tier.currentData(),
"disk_size": int(self.input_instance_disk_size.text()),
"image": self.input_instance_image.currentData()
}
self.accept()
# noinspection PyAttributeOutsideInit
class SetInstanceTagsDialog(Dialog):
def __init__(self, parent: QWidget = None) -> None:
super().__init__(parent)
self.tags: Tags | None = None
self.setWindowTitle("Set Tags")
self.resize(400, 1)
self.init_widgets()
def init_widgets(self) -> None:
self.check_http_server = QCheckBox("HTTP Server")
self.check_https_server = QCheckBox("HTTPS Server")
button_set = QPushButton("Set")
button_set.clicked.connect(self.button_set_clicked)
layout = QFormLayout()
layout.addRow(self.check_http_server)
layout.addRow(self.check_https_server)
layout.addItem(QSpacerItem(0, 10, QSizePolicy.Expanding, QSizePolicy.MinimumExpanding))
layout.addRow(button_set)
self.setLayout(layout)
def update_widgets(self) -> None:
if self.tags:
self.check_http_server.setChecked("http-server" in self.tags.items)
self.check_https_server.setChecked("https-server" in self.tags.items)
def button_set_clicked(self) -> None:
# Remove http-server and https-server tags
if "http-server" in self.tags.items:
self.tags.items.remove("http-server")
if "https-server" in self.tags.items:
self.tags.items.remove("https-server")
# Add http-server or https-server tags
if self.check_http_server.isChecked():
self.tags.items.append("http-server")
if self.check_https_server.isChecked():
self.tags.items.append("https-server")
self.accept()
# noinspection PyAttributeOutsideInit
class SetInstanceMetadataDialog(Dialog):
# noinspection PyAttributeOutsideInit
class AddKeyDialog(Dialog):
def __init__(self, parent: QWidget = None) -> None:
super().__init__(parent)
self.setWindowTitle("Add Key")
self.resize(400, 1)
self.init_widgets()
def init_widgets(self) -> None:
self.input_key = QLineEdit()
self.input_key.setValidator(QRegularExpressionValidator(r"^[a-zA-Z0-9_-]+$"))
button_add = QPushButton("Add")
button_add.clicked.connect(self.button_add_clicked)
layout = QFormLayout()
layout.addRow("Key", self.input_key)
layout.addItem(QSpacerItem(0, 10))
layout.addRow(button_add)
self.setLayout(layout)
def button_add_clicked(self) -> None:
state, _, _ = self.input_key.validator().validate(self.input_key.text(), 0)
if state != QValidator.State.Acceptable:
return QMessageBox.warning(
self,
"Key Invalid",
"Key cannot contain special characters or blank spaces. Only letters, numbers, underscores(_) and "
"hyphens(-) are allowed."
)
self.accept()
def __init__(self) -> None:
super().__init__()
self.metadata: Metadata | None = None
self.metadata_items = {}
self.setWindowTitle("Set Metadata")
self.resize(600, 1)
self.init_widgets()
def init_widgets(self) -> None:
self.select_key = QComboBox()
self.select_key.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
self.select_key.currentIndexChanged.connect(self.select_key_item_changed)
self.button_add_key = QPushButton("Add")
self.button_add_key.clicked.connect(self.button_add_key_clicked)
area_key = QHBoxLayout()
area_key.addWidget(self.select_key)
area_key.addWidget(self.button_add_key)
self.input_value = QTextEdit()
self.input_value.setWordWrapMode(QTextOption.WrapMode.WrapAnywhere)
button_set = QPushButton("Set")
button_set.clicked.connect(self.button_set_clicked)
layout = QFormLayout()
layout.addRow("Key", area_key)
layout.addRow("Value", self.input_value)
layout.addItem(QSpacerItem(0, 10))
layout.addRow(button_set)
self.setLayout(layout)
def update_widgets(self) -> None:
for item in self.metadata.items:
self.metadata_items[item.key] = item.value
self.select_key.addItem(item.key)
def select_key_item_changed(self) -> None:
if (key := self.select_key.currentText()) in self.metadata_items:
self.input_value.setText(self.metadata_items[key])
else:
self.input_value.setText("")
def button_add_key_clicked(self) -> None:
dialog = SetInstanceMetadataDialog.AddKeyDialog()
if not dialog.exec():
return
if (key := dialog.input_key.text()) not in self.metadata_items:
self.metadata_items[key] = ""
self.select_key.addItem(key)
self.select_key.setCurrentText(key)
def button_set_clicked(self) -> None:
key = self.select_key.currentText()
value = self.input_value.toPlainText()
if key:
self.metadata_items[key] = value
self.metadata.items = [Items(key=key, value=value) for key, value in self.metadata_items.items()]
self.accept()