# launcher_src/update_ui.py
import sys
from PyQt6.QtWidgets import (
    QApplication, QWidget, QVBoxLayout, QLabel, QProgressBar, QMessageBox
)
from PyQt6.QtCore import Qt, QThreadPool
from PyQt6.QtGui import QFont

from .sync_manager import SyncManager
from .worker import SyncWorker

class UpdateUI(QWidget):
    def __init__(self):
        super().__init__()
        self.sync_manager = SyncManager()
        self.threadpool = QThreadPool()
        
        self.init_ui()
        self.run_update_process()

    def init_ui(self):
        """Crea l'interfaccia grafica."""
        self.setWindowTitle("MyICR Suite Installer")
        # --- MODIFICA --- Leggermente più grande per far spazio al nuovo testo
        self.setFixedSize(450, 180)
        self.setWindowFlags(Qt.WindowType.FramelessWindowHint | Qt.WindowType.WindowStaysOnTopHint)
        
        layout = QVBoxLayout(self)
        layout.setContentsMargins(20, 20, 20, 20) # Aggiunti margini per un look migliore

        self.title_label = QLabel("MyICR Suite")
        font = QFont("Segoe UI", 16, QFont.Weight.Bold)
        self.title_label.setFont(font)
        self.title_label.setAlignment(Qt.AlignmentFlag.AlignCenter)

        self.status_label = QLabel("Avvio in corso...")
        self.status_label.setAlignment(Qt.AlignmentFlag.AlignCenter)

        self.progress_bar = QProgressBar()
        self.progress_bar.setRange(0, 0) # Inizia in modalità indeterminata
        self.progress_bar.setTextVisible(False)
        
        # --- MODIFICA --- Aggiunta la nuova etichetta per i dettagli
        self.detail_label = QLabel("")
        detail_font = QFont("Segoe UI", 8)
        self.detail_label.setFont(detail_font)
        self.detail_label.setAlignment(Qt.AlignmentFlag.AlignCenter)
        self.detail_label.setStyleSheet("color: #605E5C;")

        layout.addWidget(self.title_label)
        layout.addSpacing(10)
        layout.addWidget(self.status_label)
        layout.addWidget(self.progress_bar)
        layout.addWidget(self.detail_label) # Aggiunta al layout

        self.setStyleSheet("""
            QWidget {
                background-color: #DEECF9; /* <-- AZZURRO LEGGERO */
                border: 1px solid #0078D4;   /* <-- BORDO BLU MICROSOFT */
            }
            QLabel {
                border: none;
                background-color: transparent; /* Assicura che le label siano trasparenti */
            }
            QProgressBar {
                border: 1px solid #005A9E;
                border-radius: 3px;
                text-align: center;
            }
            QProgressBar::chunk {
                background-color: #0078D4;
            }
        """)

    def run_update_process(self):
        """Crea e avvia il worker in un thread separato."""
        worker = SyncWorker(self.sync_manager)
        worker.signals.progress.connect(self.update_progress)
        worker.signals.finished.connect(self.on_finished)
        self.threadpool.start(worker)
        
    # --- MODIFICA --- La funzione ora accetta 3 argomenti
    def update_progress(self, value: int, text: str, detail: str):
        """Slot per aggiornare la UI in base al progresso."""
        if self.progress_bar.minimum() == 0 and self.progress_bar.maximum() == 0:
            self.progress_bar.setRange(0, 100)

        self.progress_bar.setValue(value)
        self.status_label.setText(text)
        self.detail_label.setText(detail) # Aggiorna la nuova etichetta

    def on_finished(self, success: bool, message: str):
        """Slot chiamato quando il worker ha finito."""
        if success:
            QApplication.instance().quit()
        else:
            self.show_error_message(message)
            
    def show_error_message(self, message: str):
        """Mostra un popup di errore e chiude l'app."""
        msg_box = QMessageBox(self)
        msg_box.setIcon(QMessageBox.Icon.Critical)
        msg_box.setText("Errore durante l'aggiornamento")
        msg_box.setInformativeText(message)
        msg_box.setWindowTitle("Errore Launcher")
        msg_box.setStandardButtons(QMessageBox.StandardButton.Ok)
        msg_box.exec()
        QApplication.instance().quit()