"""
需求列表项组件
"""
from PyQt5.QtWidgets import QWidget, QHBoxLayout, QVBoxLayout, QLabel, QCheckBox
from PyQt5.QtCore import Qt


class RequirementItemWidget(QWidget):
    """需求列表项组件"""

    def __init__(self, requirement, parent=None):
        """
        初始化需求列表项

        Args:
            requirement: 需求对象
            parent: 父组件
        """
        super().__init__(parent)
        self.requirement = requirement
        self._setup_ui()

    def _setup_ui(self):
        """设置UI"""
        layout = QHBoxLayout(self)
        layout.setContentsMargins(10, 10, 10, 10)
        layout.setSpacing(10)

        # 复选框
        checkbox = QCheckBox()
        checkbox.setChecked(self.requirement.checked)
        checkbox.stateChanged.connect(
            lambda state: setattr(self.requirement, 'checked', state == Qt.Checked)
        )
        layout.addWidget(checkbox)

        # 内容区域
        content_layout = QVBoxLayout()
        content_layout.setSpacing(5)

        # 标题行
        title_layout = QHBoxLayout()
        title_layout.setSpacing(10)

        # 需求标题
        title_label = QLabel(f"{self.requirement.req_id} {self.requirement.title}")
        title_label.setStyleSheet("""
            font-weight: bold;
            color: #60a5fa;
        """)
        title_layout.addWidget(title_label)

        title_layout.addStretch()

        # 置信度标签
        confidence_label = self._create_confidence_label()
        title_layout.addWidget(confidence_label)

        # 优先级标签
        priority_label = self._create_priority_label()
        title_layout.addWidget(priority_label)

        content_layout.addLayout(title_layout)

        # 需求描述
        desc_label = QLabel(self.requirement.description)
        desc_label.setStyleSheet("""
            color: #94a3b8;
            font-size: 12px;
        """)
        desc_label.setWordWrap(True)
        content_layout.addWidget(desc_label)

        layout.addLayout(content_layout)

        # 设置整体样式
        self.setStyleSheet("""
            QWidget {
                background: rgba(51, 65, 85, 0.3);
                border: 1px solid rgba(59, 130, 246, 0.15);
                border-radius: 6px;
            }
        """)

    def _create_confidence_label(self) -> QLabel:
        """创建置信度标签"""
        confidence = self.requirement.confidence

        if confidence >= 90:
            color = "#10b981"
        elif confidence >= 70:
            color = "#f59e0b"
        else:
            color = "#ef4444"

        label = QLabel(f"{confidence}%")
        label.setStyleSheet(f"""
            background: {color}33;
            color: {color};
            border: 1px solid {color};
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 11px;
        """)

        return label

    def _create_priority_label(self) -> QLabel:
        """创建优先级标签"""
        priority = self.requirement.priority
        color = "#f59e0b" if priority == "高" else "#3b82f6"

        label = QLabel(f"{priority}优先级")
        label.setStyleSheet(f"""
            background: {color}33;
            color: {color};
            border: 1px solid {color};
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 11px;
        """)

        return label