"""Analysis view component."""

from __future__ import annotations

from typing import TYPE_CHECKING

from PySide2.QtCore import Qt, QTimer
from PySide2.QtWidgets import (
    QComboBox,
    QDoubleSpinBox,
    QFormLayout,
    QGroupBox,
    QHBoxLayout,
    QLabel,
    QProgressBar,
    QPushButton,
    QSpinBox,
    QTabWidget,
    QTextEdit,
    QVBoxLayout,
    QWidget,
)

if TYPE_CHECKING:
    from pytola_sim.lscsim.core.main_controller import MainController


class AnalysisView(QWidget):
    """Analysis view component."""

    def __init__(self, controller: MainController) -> None:
        super().__init__()
        self.controller = controller
        self.progress_timer = QTimer()
        self.progress_timer.timeout.connect(self._update_progress)
        self.current_progress = 0
        self._setup_ui()

    def _setup_ui(self) -> None:
        main_layout = QVBoxLayout(self)

        # Create tab widget
        self.tab_widget = QTabWidget()

        # Setup tab
        self.setup_tab = self._create_setup_tab()
        self.tab_widget.addTab(self.setup_tab, "计算设置")

        # Control tab
        self.control_tab = self._create_control_tab()
        self.tab_widget.addTab(self.control_tab, "计算控制")

        # Results tab
        self.results_tab = self._create_results_tab()
        self.tab_widget.addTab(self.results_tab, "结果查看")

        # Envelope analysis tab
        self.envelope_tab = self._create_envelope_tab()
        self.tab_widget.addTab(self.envelope_tab, "包络分析")

        main_layout.addWidget(self.tab_widget)

        # Connect signals
        self._connect_signals()

    def _create_setup_tab(self) -> QWidget:
        """Create analysis setup tab."""
        widget = QWidget()
        layout = QVBoxLayout(widget)

        # Analysis type selection
        type_group = QGroupBox("分析类型")
        type_layout = QHBoxLayout(type_group)

        self.analysis_type_combo = QComboBox()
        self.analysis_type_combo.addItems(
            [
                "静态分析",
                "动态分析",
                "热分析",
                "频率分析",
            ],
        )

        type_layout.addWidget(QLabel("分析类型:"))
        type_layout.addWidget(self.analysis_type_combo)
        type_layout.addStretch()

        layout.addWidget(type_group)

        # Solver settings
        solver_group = QGroupBox("求解器设置")
        solver_layout = QFormLayout(solver_group)

        self.solver_combo = QComboBox()
        self.solver_combo.addItems(["隐式求解器", "显式求解器", "特征值求解器"])

        self.time_step_spin = QDoubleSpinBox()
        self.time_step_spin.setRange(0.0001, 10.0)
        self.time_step_spin.setValue(0.001)
        self.time_step_spin.setDecimals(6)

        self.max_time_spin = QDoubleSpinBox()
        self.max_time_spin.setRange(0.1, 1000.0)
        self.max_time_spin.setValue(1.0)

        self.convergence_spin = QDoubleSpinBox()
        self.convergence_spin.setRange(1e-9, 1e-3)
        self.convergence_spin.setValue(1e-6)
        self.convergence_spin.setDecimals(9)

        solver_layout.addRow("求解器类型:", self.solver_combo)
        solver_layout.addRow("时间步长 (s):", self.time_step_spin)
        solver_layout.addRow("最大时间 (s):", self.max_time_spin)
        solver_layout.addRow("收敛容差:", self.convergence_spin)

        layout.addWidget(solver_group)

        # Hardware resources
        hardware_group = QGroupBox("硬件资源")
        hardware_layout = QFormLayout(hardware_group)

        self.cores_spin = QSpinBox()
        self.cores_spin.setRange(1, 32)
        self.cores_spin.setValue(4)

        self.memory_spin = QSpinBox()
        self.memory_spin.setRange(1, 128)
        self.memory_spin.setValue(8)

        hardware_layout.addRow("CPU核心数:", self.cores_spin)
        hardware_layout.addRow("内存限制 (GB):", self.memory_spin)

        layout.addWidget(hardware_group)

        # Setup button
        self.setup_btn = QPushButton("设置分析参数")
        layout.addWidget(self.setup_btn)
        layout.addStretch()

        return widget

    def _create_control_tab(self) -> QWidget:
        """Create calculation control tab."""
        widget = QWidget()
        layout = QVBoxLayout(widget)

        # Control buttons
        control_group = QGroupBox("计算控制")
        control_layout = QHBoxLayout(control_group)

        self.start_btn = QPushButton("开始计算")
        self.pause_btn = QPushButton("暂停计算")
        self.stop_btn = QPushButton("停止计算")

        # Style buttons
        self.start_btn.setStyleSheet("background-color: #4CAF50; color: white;")
        self.pause_btn.setStyleSheet("background-color: #FF9800; color: white;")
        self.stop_btn.setStyleSheet("background-color: #F44336; color: white;")

        control_layout.addWidget(self.start_btn)
        control_layout.addWidget(self.pause_btn)
        control_layout.addWidget(self.stop_btn)

        layout.addWidget(control_group)

        # Progress section
        progress_group = QGroupBox("计算进度")
        progress_layout = QVBoxLayout(progress_group)

        self.progress_bar = QProgressBar()
        self.progress_bar.setRange(0, 100)
        self.progress_bar.setValue(0)

        self.status_label = QLabel("就绪")
        self.status_label.setAlignment(Qt.AlignCenter)

        self.time_label = QLabel("预计剩余时间: --")
        self.time_label.setAlignment(Qt.AlignCenter)

        progress_layout.addWidget(self.progress_bar)
        progress_layout.addWidget(self.status_label)
        progress_layout.addWidget(self.time_label)

        layout.addWidget(progress_group)

        # Output console
        console_group = QGroupBox("计算输出")
        console_layout = QVBoxLayout(console_group)

        self.console_output = QTextEdit()
        self.console_output.setMaximumHeight(200)
        self.console_output.setReadOnly(True)
        self.console_output.setPlaceholderText("计算输出信息将在此显示...")

        console_layout.addWidget(self.console_output)

        layout.addWidget(console_group)
        layout.addStretch()

        return widget

    def _create_results_tab(self) -> QWidget:
        """Create results viewing tab."""
        widget = QWidget()
        layout = QVBoxLayout(widget)

        # Results display
        display_group = QGroupBox("结果展示")
        display_layout = QVBoxLayout(display_group)

        # Result type selection
        type_layout = QHBoxLayout()
        self.result_type_combo = QComboBox()
        self.result_type_combo.addItems(
            [
                "位移云图",
                "应力云图",
                "应变云图",
                "速度场",
                "能量分布",
            ],
        )
        self.refresh_results_btn = QPushButton("刷新结果")

        type_layout.addWidget(QLabel("结果显示:"))
        type_layout.addWidget(self.result_type_combo)
        type_layout.addWidget(self.refresh_results_btn)

        display_layout.addLayout(type_layout)

        # Placeholder for visualization
        self.result_display = QTextEdit()
        self.result_display.setMinimumHeight(300)
        self.result_display.setPlaceholderText("结果可视化区域...")

        display_layout.addWidget(self.result_display)

        layout.addWidget(display_group)

        # Results data
        data_group = QGroupBox("结果数据")
        data_layout = QHBoxLayout(data_group)

        self.max_value_label = QLabel("最大值: --")
        self.min_value_label = QLabel("最小值: --")
        self.avg_value_label = QLabel("平均值: --")

        data_layout.addWidget(self.max_value_label)
        data_layout.addWidget(self.min_value_label)
        data_layout.addWidget(self.avg_value_label)

        layout.addWidget(data_group)

        # Export options
        export_layout = QHBoxLayout()
        self.export_csv_btn = QPushButton("导出CSV")
        self.export_vtk_btn = QPushButton("导出VTK")
        self.export_image_btn = QPushButton("导出图像")

        export_layout.addWidget(self.export_csv_btn)
        export_layout.addWidget(self.export_vtk_btn)
        export_layout.addWidget(self.export_image_btn)
        export_layout.addStretch()

        layout.addLayout(export_layout)
        layout.addStretch()

        return widget

    def _create_envelope_tab(self) -> QWidget:
        """Create envelope analysis tab."""
        widget = QWidget()
        layout = QVBoxLayout(widget)

        # Envelope analysis setup
        envelope_group = QGroupBox("包络分析设置")
        envelope_layout = QVBoxLayout(envelope_group)

        # Load cases
        cases_layout = QHBoxLayout()
        self.load_cases_combo = QComboBox()
        self.load_cases_combo.addItems(["工况组合1", "工况组合2", "自定义组合"])
        self.add_case_btn = QPushButton("添加工况")

        cases_layout.addWidget(QLabel("载荷工况:"))
        cases_layout.addWidget(self.load_cases_combo)
        cases_layout.addWidget(self.add_case_btn)

        envelope_layout.addLayout(cases_layout)

        # Analysis parameters
        param_layout = QFormLayout()

        self.envelope_type_combo = QComboBox()
        self.envelope_type_combo.addItems(["最大值包络", "最小值包络", "均方根包络"])

        self.confidence_spin = QDoubleSpinBox()
        self.confidence_spin.setRange(0.1, 0.99)
        self.confidence_spin.setValue(0.95)
        self.confidence_spin.setSingleStep(0.05)

        param_layout.addRow("包络类型:", self.envelope_type_combo)
        param_layout.addRow("置信水平:", self.confidence_spin)

        envelope_layout.addLayout(param_layout)

        layout.addWidget(envelope_group)

        # Execute button
        self.run_envelope_btn = QPushButton("执行包络分析")
        self.run_envelope_btn.setStyleSheet(
            "background-color: #2196F3; color: white; font-weight: bold;",
        )
        layout.addWidget(self.run_envelope_btn)

        # Results display
        results_group = QGroupBox("包络分析结果")
        results_layout = QVBoxLayout(results_group)

        self.envelope_results = QTextEdit()
        self.envelope_results.setMinimumHeight(200)
        self.envelope_results.setReadOnly(True)
        self.envelope_results.setPlaceholderText("包络分析结果将在此显示...")

        results_layout.addWidget(self.envelope_results)

        layout.addWidget(results_group)
        layout.addStretch()

        return widget

    def _connect_signals(self) -> None:
        """Connect UI signals to slots."""
        # Setup signals
        self.setup_btn.clicked.connect(self._on_setup_analysis)

        # Control signals
        self.start_btn.clicked.connect(self._on_start_calculation)
        self.pause_btn.clicked.connect(self._on_pause_calculation)
        self.stop_btn.clicked.connect(self._on_stop_calculation)

        # Results signals
        self.refresh_results_btn.clicked.connect(self._on_refresh_results)
        self.export_csv_btn.clicked.connect(self._on_export_csv)
        self.export_vtk_btn.clicked.connect(self._on_export_vtk)
        self.export_image_btn.clicked.connect(self._on_export_image)

        # Envelope signals
        self.run_envelope_btn.clicked.connect(self._on_run_envelope_analysis)
        self.add_case_btn.clicked.connect(self._on_add_load_case)

    def _on_setup_analysis(self) -> None:
        """Handle setup analysis button click."""
        setup_params = {
            "analysis_type": self.analysis_type_combo.currentText(),
            "solver_type": self.solver_combo.currentText(),
            "time_step": self.time_step_spin.value(),
            "max_time": self.max_time_spin.value(),
            "convergence": self.convergence_spin.value(),
            "cores": self.cores_spin.value(),
            "memory": self.memory_spin.value(),
        }

        self.controller.execute_command("Analysis.SetupCalculation", setup_params)

        self.console_output.append("分析参数已设置")
        self.status_label.setText("参数已设置, 可以开始计算")

    def _on_start_calculation(self) -> None:
        """Handle start calculation button click."""
        self.controller.execute_command("Analysis.StartCalculation")

        self.console_output.append("计算开始执行...")
        self.status_label.setText("计算进行中")
        self.start_btn.setEnabled(False)
        self.pause_btn.setEnabled(True)
        self.stop_btn.setEnabled(True)

        # Start progress simulation
        self.current_progress = 0
        self.progress_timer.start(100)  # Update every 100ms

    def _on_pause_calculation(self) -> None:
        """Handle pause calculation button click."""
        self.controller.execute_command("Analysis.PauseCalculation")

        self.console_output.append("计算已暂停")
        self.status_label.setText("计算已暂停")
        self.progress_timer.stop()

        self.start_btn.setEnabled(True)
        self.pause_btn.setEnabled(False)

    def _on_stop_calculation(self) -> None:
        """Handle stop calculation button click."""
        self.controller.execute_command("Analysis.StopCalculation")

        self.console_output.append("计算已停止")
        self.status_label.setText("计算已停止")
        self.progress_timer.stop()

        self.start_btn.setEnabled(True)
        self.pause_btn.setEnabled(False)
        self.stop_btn.setEnabled(False)

        self.progress_bar.setValue(0)
        self.current_progress = 0

    def _update_progress(self) -> None:
        """Update progress bar simulation."""
        self.current_progress += 1
        if self.current_progress <= 100:
            self.progress_bar.setValue(self.current_progress)
            self.status_label.setText(f"计算进行中 ({self.current_progress}%)")

            # Simulate console output
            if self.current_progress % 10 == 0:
                self.console_output.append(f"计算进度: {self.current_progress}%")
        else:
            self.progress_timer.stop()
            self.status_label.setText("计算完成")
            self.console_output.append("计算已完成!")

            self.start_btn.setEnabled(True)
            self.pause_btn.setEnabled(False)
            self.stop_btn.setEnabled(False)

    def _on_refresh_results(self) -> None:
        """Handle refresh results button click."""
        result_type = self.result_type_combo.currentText()
        self.controller.execute_command("Analysis.GetResults", {"type": result_type})

        # Simulate results display
        self.result_display.setPlainText(f"显示 {result_type} 结果...")
        self.max_value_label.setText("最大值: 150.5 MPa")
        self.min_value_label.setText("最小值: 0.2 MPa")
        self.avg_value_label.setText("平均值: 45.3 MPa")

    def _on_export_csv(self) -> None:
        """Handle export CSV button click."""
        self.controller.execute_command("Analysis.ExportResults", {"format": "csv"})
        self.console_output.append("结果已导出为CSV格式")

    def _on_export_vtk(self) -> None:
        """Handle export VTK button click."""
        self.controller.execute_command("Analysis.ExportResults", {"format": "vtk"})
        self.console_output.append("结果已导出为VTK格式")

    def _on_export_image(self) -> None:
        """Handle export image button click."""
        self.controller.execute_command("Analysis.ExportResults", {"format": "image"})
        self.console_output.append("结果图像已导出")

    def _on_run_envelope_analysis(self) -> None:
        """Handle run envelope analysis button click."""
        envelope_params = {
            "type": self.envelope_type_combo.currentText(),
            "confidence": self.confidence_spin.value(),
            "load_cases": self.load_cases_combo.currentText(),
        }

        self.controller.execute_command("Analysis.EnvelopeAnalysis", envelope_params)

        # Simulate envelope results
        self.envelope_results.setPlainText(
            f"包络分析完成\n"
            f"分析类型: {envelope_params['type']}\n"
            f"置信水平: {envelope_params['confidence']:.2%}\n"
            f"最大包络值: 200.5 MPa\n"
            f"最小包络值: 5.2 MPa",
        )

        self.console_output.append("包络分析已完成")

    def _on_add_load_case(self) -> None:
        """Handle add load case button click."""
        self.console_output.append("添加新的载荷工况...")
