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import logging
from copy import copy
from dataclasses import dataclass, field
from enum import IntEnum, auto
from pathlib import Path
from typing import Any, Optional, Self
from PySide6.QtCore import (
QAbstractListModel, QAbstractItemModel, QByteArray, QModelIndex, QObject,
QPersistentModelIndex, QStandardPaths, QUrl, Qt, Signal, Slot, Property
)
from PySide6.QtQml import QmlElement
from kodereviewer.project import Project
from kodereviewer.data import ChangedFile, Label, PullRequest
QML_IMPORT_NAME = "org.deprecated.kodereviewer"
QML_IMPORT_MAJOR_VERSION = 1
logger = logging.getLogger(__name__)
@dataclass
class FileItem:
filename: str
parent: Self | None
children: list[Self] = field(default_factory=list)
def append(self, child: Self):
self.children.append(child)
def child(self, row: int) -> Self | None:
if row >= 0 and row < len(self.children):
return self.children[row]
return None
def row(self) -> int:
"""Reports the item's location within it's parent."""
if self.parent is None:
return 0
for i, child in enumerate(self.parent.children):
if self is child:
return i
raise Exception('Should not happen!')
def column_count(self) -> int:
"""Only the filename."""
return 1
def __str__(self) -> str:
return f'{self.filename} | {id(self.parent)} | {[x.filename for x in self.children]}'
@QmlElement
class TreeFileModel(QAbstractItemModel):
filenames: list[str] = field(default_factory=list)
dir_mapping: dict[str, FileItem] = field(default_factory=dict)
root_node: FileItem
_pull_request: Optional[PullRequest]
def __init__(self):
super().__init__()
self.root_node = FileItem('./', None)
self._pull_request = None
def load_files(self, filenames: list[str]):
logger.info(f'Loading {filenames}')
self.filenames = filenames
self.dir_mapping: dict[str, FileItem] = {}
root_node = FileItem('./', None)
for file in self.filenames:
p = Path(file)
directories = p.parts[:-1]
fname = p.name
current_path = Path('')
parent: FileItem = root_node
for dir in directories:
current_path = current_path / dir
if str(current_path) not in self.dir_mapping:
logger.info(f'Creating {current_path}')
self.dir_mapping[str(current_path)] = FileItem(
str(current_path), parent
)
logger.info(f'Appending to {parent}')
parent.append(self.dir_mapping[str(current_path)])
parent = self.dir_mapping[str(current_path)]
file_item = FileItem(fname, parent)
parent.append(file_item)
self.root_node = root_node
logger.info(self.root_node)
pullRequestChanged = Signal()
def get_pull_request(self) -> Optional[PullRequest]:
return self._pull_request
def set_pull_request(self, pull_request: Optional[PullRequest]) -> None:
if pull_request is None:
return
if self._pull_request is not None and self._pull_request == pull_request:
return
self.beginResetModel()
self._pull_request = pull_request
self._pull_request.filesLoaded.connect(self._reset_model)
self.endResetModel()
self.pullRequestChanged.emit()
pullRequest = Property(PullRequest, fget=get_pull_request, fset=set_pull_request,
notify=pullRequestChanged)
def _reset_model(self) -> None:
logger.info('reseting model')
self.beginResetModel()
filenames = [f.filename for f in self._pull_request.files]
self.load_files(filenames)
self.endResetModel()
def index(self, row: int, column: int,
index: QModelIndex = QModelIndex()) -> QModelIndex:
"""Returns the index of the item in the model specified by the given row, column and parent index."""
if not self.hasIndex(row, column, index):
return QModelIndex()
item: FileItem
if not index.isValid():
item = self.root_node
else:
item = index.internalPointer()
if item.child(row):
return self.createIndex(row, column, item.child(row))
return QModelIndex()
def parent(self, index: QModelIndex) -> QModelIndex:
"""Returns the parent of the model item with the given index
If the item has no parent, an invalid QModelIndex is returned.
"""
if not index.isValid():
return QModelIndex()
item: FileItem = index.internalPointer()
parent: FileItem = item.parent
if parent == self.root_node:
return QModelIndex()
return self.createIndex(parent.row(), 0, parent)
def rowCount(self, index: QModelIndex = QModelIndex()) -> int:
"""Returns the number of rows under the given parent
When the parent is valid it means that rowCount is returning
the number of children of parent. """
parent: FileItem
if index.isValid():
parent = index.internalPointer()
else:
parent = self.root_node
return len(parent.children)
def columnCount(self, parent: QModelIndex = QModelIndex()) -> int:
return 1
FilenameRole = Qt.ItemDataRole.UserRole + 1
def data(self, index: QModelIndex, role: int) -> Any:
if not index.isValid():
return ''
filename = index.internalPointer().filename
name = Path(filename).name
logger.info(index)
logger.info(f'Role: {role} | {self.FilenameRole}')
if role == Qt.ItemDataRole.DisplayRole:
return name
if role == self.FilenameRole:
logger.info(name)
return name
return None
def roleNames(self) -> dict[int, QByteArray]:
return {
self.FilenameRole: QByteArray(b'filename'),
}
@QmlElement
class FileModel(QAbstractListModel):
_pull_request: Optional[PullRequest]
class Roles(IntEnum):
Sha = Qt.ItemDataRole.UserRole + 1
Filename = auto()
Status = auto()
Additions = auto()
Deletions = auto()
Changes = auto()
Patch = auto()
def __init__(self):
super().__init__()
self._pull_request = None
pullRequestChanged = Signal()
def get_pull_request(self) -> Optional[PullRequest]:
return self._pull_request
def set_pull_request(self, pull_request: Optional[PullRequest]) -> None:
if pull_request is None:
return
if self._pull_request is not None and self._pull_request == pull_request:
return
self.beginResetModel()
self._pull_request = pull_request
self._pull_request.filesLoaded.connect(self._reset_model)
self.endResetModel()
self.pullRequestChanged.emit()
pullRequest = Property(PullRequest, fget=get_pull_request, fset=set_pull_request,
notify=pullRequestChanged)
def _reset_model(self) -> None:
self.beginResetModel()
self.endResetModel()
def data(self,
index: QModelIndex | QPersistentModelIndex,
role: int = Qt.ItemDataRole.DisplayRole) -> object:
if self._pull_request is None:
return None
file: ChangedFile = self._pull_request.files[index.row()]
if role == self.Roles.Sha:
return file.sha
if role == self.Roles.Filename:
return file.filename
if role == self.Roles.Additions:
return file.additions
if role == self.Roles.Deletions:
return file.deletions
if role == self.Roles.Changes:
return file.changes
if role == self.Roles.Patch:
return file.patch
if role == Qt.ItemDataRole.DisplayRole:
return file.filename
return None
def rowCount(self, parent: QModelIndex | QPersistentModelIndex = QModelIndex()) -> int:
if self._pull_request is None:
return 0
return len(self._pull_request.files)
def roleNames(self) -> dict[int, QByteArray]:
return {
self.Roles.Sha: QByteArray(b'sha'),
self.Roles.Filename: QByteArray(b'filename'),
self.Roles.Additions: QByteArray(b'additions'),
self.Roles.Deletions: QByteArray(b'deletions'),
self.Roles.Changes: QByteArray(b'changes'),
self.Roles.Patch: QByteArray(b'patch'),
}
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