"""
Maturity Results Panel

Panel for displaying multispectral maturity classification results with confidence bars.
"""

from PyQt5.QtWidgets import QWidget, QVBoxLayout, QHBoxLayout, QLabel, QProgressBar, QSizePolicy
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QFont


class MaturityResultsPanel(QWidget):
    """
    Panel for displaying maturity analysis results.
    """
    
    def __init__(self, parent=None):
        super().__init__(parent)
        self.init_ui()
        
    def init_ui(self):
        """Initialize the panel UI."""
        # Set size policy to expand equally
        self.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
        
        layout = QVBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)
        layout.setSpacing(0)
        
        # Main panel container with card styling
        self.setStyleSheet("""
            QWidget {
                background-color: white;
                border: 1px solid #ddd;
            }
        """)
        
        # Header
        header = QWidget()
        header.setFixedHeight(25)
        header.setStyleSheet("background-color: #8e44ad;")
        header_layout = QHBoxLayout(header)
        header_layout.setContentsMargins(10, 0, 0, 0)
        
        title = QLabel("Maturity Analysis Results")
        title.setStyleSheet("color: white; font-weight: bold; font-size: 16px;")
        
        header_layout.addWidget(title)
        
        # Current Classification
        classification_label = QLabel("Current Classification:")
        classification_label.setStyleSheet("font-weight: bold; font-size: 12px; margin: 8px 10px 5px 10px; color: #2c3e50;")
        
        classification_frame = QWidget()
        classification_frame.setStyleSheet("background-color: #95a5a6;")
        classification_frame.setMinimumHeight(45)
        classification_layout = QVBoxLayout(classification_frame)
        classification_layout.setAlignment(Qt.AlignCenter)
        classification_layout.setContentsMargins(5, 5, 5, 5)
        
        self.class_display = QLabel("—")
        self.class_display.setAlignment(Qt.AlignCenter)
        self.class_display.setStyleSheet("color: white; font-weight: bold; font-size: 18px;")
        
        classification_layout.addWidget(self.class_display)
        
        # Confidence Scores
        confidence_label = QLabel("Confidence Scores:")
        confidence_label.setStyleSheet("font-weight: bold; font-size: 11px; margin: 8px 10px 5px 10px; color: #2c3e50;")
        
        # Create progress bars for each category
        categories = [
            ("Immature", 0, "#95a5a6"),
            ("Mature", 0, "#27ae60"),
            ("Overmature", 0, "#e74c3c")
        ]
        
        confidence_layout = QVBoxLayout()
        confidence_layout.setSpacing(4)
        
        self.confidence_bars = {}
        for name, value, color in categories:
            category_frame = QWidget()
            category_layout = QHBoxLayout(category_frame)
            category_layout.setContentsMargins(10, 0, 10, 0)
            category_layout.setSpacing(8)
            
            name_label = QLabel(f"{name}:")
            name_label.setFixedWidth(80)
            name_label.setStyleSheet("font-size: 10px; color: #2c3e50;")
            
            progress = QProgressBar()
            progress.setRange(0, 100)
            progress.setValue(int(value))
            progress.setTextVisible(False)
            progress.setStyleSheet(f"""
                QProgressBar {{
                    background-color: #ecf0f1;
                    border: 1px solid #bdc3c7;
                    border-radius: 0px;
                    height: 15px;
                }}
                QProgressBar::chunk {{
                    background-color: {color};
                }}
            """)
            
            value_label = QLabel(f"{value}%")
            value_label.setFixedWidth(45)
            value_label.setAlignment(Qt.AlignRight | Qt.AlignVCenter)
            value_label.setStyleSheet("font-size: 12px; color: #2c3e50;")
            
            category_layout.addWidget(name_label)
            category_layout.addWidget(progress)
            category_layout.addWidget(value_label)
            
            confidence_layout.addWidget(category_frame)
            self.confidence_bars[name] = (progress, value_label)
        
        # Processing time
        self.info_label = QLabel("")
        self.info_label.setStyleSheet("color: #7f8c8d; font-size: 12px; margin: 8px 10px 5px 10px;")
        
        layout.addWidget(header)
        layout.addWidget(classification_label)
        layout.addWidget(classification_frame)
        layout.addWidget(confidence_label)
        layout.addLayout(confidence_layout)
        layout.addWidget(self.info_label)
        layout.addStretch()
        
    def update_results(self, classification: str, probabilities: dict, 
                      processing_time: float = 0, model_version: str = "MaturityNet v1.0"):
        """
        Update the results display.
        
        Args:
            classification: Predicted class name
            probabilities: Dictionary of class probabilities (0-1)
            processing_time: Processing time in seconds
            model_version: Model version string
        """
        # Map class names to display names
        class_mapping = {
            "Immature": "Immature",
            "Mature": "Mature",
            "Overmature": "Overmature"
        }
        
        display_class = class_mapping.get(classification, classification)
        
        # Update classification display
        self.class_display.setText(display_class.upper())
        
        # Set color based on classification
        class_colors = {
            "Immature": "#95a5a6",
            "Mature": "#27ae60",
            "Overmature": "#e74c3c"
        }
        bg_color = class_colors.get(classification, "#95a5a6")
        self.class_display.parent().setStyleSheet(f"background-color: {bg_color};")
        self.class_display.setStyleSheet("""
            color: white;
            font-weight: bold;
            font-size: 18px;
        """)
        
        # Update confidence bars
        for class_name, (progress_bar, value_label) in self.confidence_bars.items():
            # Try to find matching probability (handle case variations)
            prob = 0
            for key, value in probabilities.items():
                if key.lower() == class_name.lower():
                    prob = value
                    break
            
            percentage = prob * 100
            
            # Update progress bar
            progress_bar.setValue(int(percentage))
            
            # Update value label
            value_label.setText(f"{percentage:.1f}%")
            
            # Highlight primary class
            if class_name == display_class:
                value_label.setStyleSheet("font-size: 12px; font-weight: bold; color: #2c3e50;")
            else:
                value_label.setStyleSheet("font-size: 12px; color: #2c3e50;")
        
        # Update info label
        self.info_label.setText(
            f"Processing Time: {processing_time:.2f}s | Model: {model_version}"
        )
        
    def clear_results(self):
        """Clear all results."""
        self.class_display.setText("—")
        self.class_display.setStyleSheet("""
            color: white;
            font-weight: bold;
            font-size: 18px;
        """)
        
        for progress_bar, value_label in self.confidence_bars.values():
            progress_bar.setValue(0)
            value_label.setText("0%")
            value_label.setStyleSheet("font-size: 12px; color: #2c3e50;")
            
        self.info_label.setText("")