"""
Timeline Entry Widget

Widget for displaying a single test result entry in the analysis timeline.
"""

from PyQt5.QtWidgets import QWidget, QHBoxLayout, QVBoxLayout, QLabel, QPushButton
from PyQt5.QtCore import Qt, pyqtSignal
from PyQt5.QtGui import QFont


class TimelineEntry(QWidget):
    """
    Timeline entry showing a test result.
    
    Signals:
        save_clicked: Emitted when save button is clicked
        view_clicked: Emitted when view button is clicked
    """
    
    save_clicked = pyqtSignal(int)  # test_id
    view_clicked = pyqtSignal(int)  # test_id
    
    def __init__(self, test_id: int, timestamp: str, classification: str,
                 confidence: float, processing_time: float, parent=None):
        super().__init__(parent)
        self.test_id = test_id
        self.init_ui(timestamp, classification, confidence, processing_time)
        
    def init_ui(self, timestamp: str, classification: str, 
                confidence: float, processing_time: float):
        """Initialize the timeline entry UI."""
        self.setFixedHeight(48)
        
        # Set background color (alternating)
        bg_color = "#f8f9fa" if self.test_id % 2 == 0 else "#ffffff"
        self.setStyleSheet(f"""
            QWidget {{
                background-color: {bg_color};
                border: 1px solid #ecf0f1;
                border-radius: 3px;
            }}
        """)
        
        layout = QHBoxLayout(self)
        layout.setContentsMargins(12, 8, 12, 8)
        layout.setSpacing(12)
        
        # Status indicator dot
        status_colors = {
            "Ripe": "#27ae60",
            "Overripe": "#f39c12",
            "Unripe": "#95a5a6",
            "Overripe": "#e74c3c"
        }
        color = status_colors.get(classification, "#95a5a6")
        
        status_dot = QLabel("●")
        status_dot.setFont(QFont("Arial", 12))
        status_dot.setStyleSheet(f"color: {color};")
        status_dot.setFixedWidth(15)
        layout.addWidget(status_dot)
        
        # Info section
        info_layout = QVBoxLayout()
        info_layout.setSpacing(2)
        
        # Timestamp and test ID
        header_label = QLabel(f"{timestamp} - Test #{self.test_id:04d}")
        header_label.setFont(QFont("Arial", 10, QFont.Bold))
        header_label.setStyleSheet("color: #2c3e50;")
        info_layout.addWidget(header_label)
        
        # Classification and details
        details = f"{classification.upper()} ({confidence:.1f}%) - Processing: {processing_time:.2f}s"
        details_label = QLabel(details)
        details_label.setFont(QFont("Arial", 9))
        details_label.setStyleSheet(f"color: {color};")
        info_layout.addWidget(details_label)
        
        layout.addLayout(info_layout, 1)
        
        # Action button
        if self.test_id == 1:  # Most recent - show SAVE button
            action_btn = QPushButton("SAVE")
            action_btn.clicked.connect(lambda: self.save_clicked.emit(self.test_id))
            btn_color = "#27ae60"
        else:  # Older entries - show VIEW button
            action_btn = QPushButton("VIEW")
            action_btn.clicked.connect(lambda: self.view_clicked.emit(self.test_id))
            btn_color = "#3498db"
            
        action_btn.setFont(QFont("Arial", 8, QFont.Bold))
        action_btn.setFixedSize(50, 24)
        action_btn.setStyleSheet(f"""
            QPushButton {{
                background-color: {btn_color};
                border: none;
                border-radius: 2px;
                color: white;
            }}
            QPushButton:hover {{
                opacity: 0.9;
            }}
        """)
        layout.addWidget(action_btn)