"""Dialogue Numerotation de pages."""

from PyQt6.QtWidgets import (QDialog, QVBoxLayout, QHBoxLayout, QLabel,
                              QGroupBox, QComboBox, QSpinBox, QLineEdit,
                              QDialogButtonBox, QDoubleSpinBox, QPushButton,
                              QColorDialog)
from PyQt6.QtGui import QColor
from reportlab.lib.units import mm


class PageNumbersDialog(QDialog):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Numerotation de pages")
        self.setMinimumWidth(400)
        self._color = QColor(0, 0, 0)
        self._setup_ui()

    def _setup_ui(self):
        layout = QVBoxLayout(self)

        # Position
        grp_pos = QGroupBox("Position")
        pl = QHBoxLayout(grp_pos)
        pl.addWidget(QLabel("Emplacement :"))
        self.combo_pos = QComboBox()
        positions = [
            "haut-gauche", "haut-centre", "haut-droite",
            "milieu-gauche", "milieu-centre", "milieu-droite",
            "bas-gauche", "bas-centre", "bas-droite"
        ]
        self.combo_pos.addItems(positions)
        self.combo_pos.setCurrentText("bas-centre")
        pl.addWidget(self.combo_pos)
        layout.addWidget(grp_pos)

        # Police
        grp_font = QGroupBox("Police")
        fl = QHBoxLayout(grp_font)
        fl.addWidget(QLabel("Police :"))
        self.combo_font = QComboBox()
        self.combo_font.addItems(["Helvetica", "Times-Roman", "Courier"])
        fl.addWidget(self.combo_font)
        fl.addWidget(QLabel("Taille :"))
        self.spin_size = QSpinBox()
        self.spin_size.setRange(4, 72)
        self.spin_size.setValue(10)
        fl.addWidget(self.spin_size)
        layout.addWidget(grp_font)

        # Couleur
        color_layout = QHBoxLayout()
        color_layout.addWidget(QLabel("Couleur :"))
        self.btn_color = QPushButton()
        self.btn_color.setFixedSize(60, 28)
        self._update_color_button()
        self.btn_color.clicked.connect(self._pick_color)
        color_layout.addWidget(self.btn_color)
        color_layout.addStretch()
        layout.addLayout(color_layout)

        # Texte
        grp_text = QGroupBox("Texte")
        tl = QHBoxLayout(grp_text)
        tl.addWidget(QLabel("Prefixe :"))
        self.edit_prefix = QLineEdit()
        self.edit_prefix.setPlaceholderText("ex: Page ")
        tl.addWidget(self.edit_prefix)
        tl.addWidget(QLabel("Suffixe :"))
        self.edit_suffix = QLineEdit()
        self.edit_suffix.setPlaceholderText("ex:  / 24")
        tl.addWidget(self.edit_suffix)
        layout.addWidget(grp_text)

        # Numero de depart
        start_layout = QHBoxLayout()
        start_layout.addWidget(QLabel("Commencer a :"))
        self.spin_start = QSpinBox()
        self.spin_start.setRange(0, 9999)
        self.spin_start.setValue(1)
        start_layout.addWidget(self.spin_start)
        start_layout.addStretch()
        layout.addLayout(start_layout)

        # Marges
        margin_layout = QHBoxLayout()
        margin_layout.addWidget(QLabel("Marge X :"))
        self.spin_mx = QDoubleSpinBox()
        self.spin_mx.setRange(0, 100)
        self.spin_mx.setValue(10)
        self.spin_mx.setSuffix(" mm")
        margin_layout.addWidget(self.spin_mx)
        margin_layout.addWidget(QLabel("Marge Y :"))
        self.spin_my = QDoubleSpinBox()
        self.spin_my.setRange(0, 100)
        self.spin_my.setValue(10)
        self.spin_my.setSuffix(" mm")
        margin_layout.addWidget(self.spin_my)
        layout.addLayout(margin_layout)

        # Appliquer a
        grp_apply = QGroupBox("Appliquer a")
        al = QHBoxLayout(grp_apply)
        self.combo_apply = QComboBox()
        self.combo_apply.addItems(["Toutes les pages", "Pages paires", "Pages impaires"])
        al.addWidget(self.combo_apply)
        layout.addWidget(grp_apply)

        # Boutons
        buttons = QDialogButtonBox(
            QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel
        )
        buttons.accepted.connect(self.accept)
        buttons.rejected.connect(self.reject)
        layout.addWidget(buttons)

    def _pick_color(self):
        color = QColorDialog.getColor(self._color, self, "Couleur de la numerotation")
        if color.isValid():
            self._color = color
            self._update_color_button()

    def _update_color_button(self):
        self.btn_color.setStyleSheet(
            f"background-color: {self._color.name()}; border: 1px solid #999; border-radius: 4px;"
        )

    def get_settings(self):
        apply_map = {
            "Toutes les pages": "all",
            "Pages paires": "even",
            "Pages impaires": "odd"
        }
        return {
            "position": self.combo_pos.currentText(),
            "font_name": self.combo_font.currentText(),
            "font_size": self.spin_size.value(),
            "color": (self._color.redF(), self._color.greenF(), self._color.blueF()),
            "prefix": self.edit_prefix.text(),
            "suffix": self.edit_suffix.text(),
            "start_number": self.spin_start.value(),
            "margin_x": self.spin_mx.value() * mm,
            "margin_y": self.spin_my.value() * mm,
            "apply_to": apply_map[self.combo_apply.currentText()],
        }