1 files changed, 96 insertions, 0 deletions
diff --git a/kodereviewer/models/label.py b/kodereviewer/models/label.py
new file mode 100644
index 0000000..8349aa8
--- /dev/null
+++ b/kodereviewer/models/label.py
@@ -0,0 +1,96 @@
+from copy import copy
+from enum import IntEnum, auto
+from typing import Any, Optional
+
+from PySide6.QtCore import QAbstractListModel, QByteArray, QModelIndex, QObject, QPersistentModelIndex, QStandardPaths, QUrl, Qt, Signal, Slot, Property
+from PySide6.QtQml import QmlElement
+
+from kodereviewer.project import Project
+from kodereviewer.data import Label, PullRequest
+
+QML_IMPORT_NAME = "org.deprecated.kodereviewer"
+QML_IMPORT_MAJOR_VERSION = 1
+
+
+@QmlElement
+class LabelModel(QAbstractListModel):
+    """Model to show pull request labels."""
+
+    _pull_request: Optional[PullRequest]
+
+    class Roles(IntEnum):
+        Name = Qt.ItemDataRole.UserRole + 1
+        LabelColor = auto()
+        TextColor = auto()
+        Description = 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.endResetModel()
+        self.pullRequestChanged.emit()
+
+    pullRequest = Property(PullRequest, fget=get_pull_request, fset=set_pull_request,
+                           notify=pullRequestChanged)
+
+    def data(self,
+             index: QModelIndex | QPersistentModelIndex,
+             role: int = Qt.ItemDataRole.DisplayRole) -> object:
+        if self._pull_request is None:
+            return None
+
+        label: Label = self._pull_request.labels[index.row()]
+
+        if role == self.Roles.Name:
+            return label.name
+        if role == self.Roles.LabelColor:
+            return f'#{label.color}'
+        if role == self.Roles.TextColor:
+            return self.text_color(label.color)
+        if role == self.Roles.Description:
+            return label.description
+        if role == Qt.ItemDataRole.DisplayRole:
+            return label.name
+        return None
+
+    def rowCount(self, parent: QModelIndex | QPersistentModelIndex = QModelIndex()) -> int:
+        if self._pull_request is None:
+            return 0
+        return len(self._pull_request.labels)
+
+    def roleNames(self) -> dict[int, QByteArray]:
+        return {
+            self.Roles.Name: QByteArray(b'name'),
+            self.Roles.LabelColor: QByteArray(b'labelColor'),
+            self.Roles.TextColor: QByteArray(b'textColor'),
+            self.Roles.Description: QByteArray(b'description'),
+        }
+
+    def text_color(self, background_color: str) -> str:
+        r = int(background_color[0:2], 16)
+        g = int(background_color[2:4], 16)
+        b = int(background_color[4:6], 16)
+        def _t(value: float) -> float:
+            if value <= 0.04045:
+                return value / 12.92
+            return ((value + 0.055) / 1.055) ** 2.4
+        srgb = [_t(value/255) for value in [r, g, b]]
+        L = 0.2126 * srgb[0] + 0.7152 * srgb[1] + 0.0722 * srgb[2];
+        if L > 0.179:
+            return '#000'
+        return '#fff'