"""Dialogue Repetition (Step & Repeat)."""

from PyQt6.QtWidgets import (QDialog, QVBoxLayout, QHBoxLayout, QLabel,
                              QComboBox, QGroupBox, QSpinBox, QCheckBox,
                              QDialogButtonBox, QDoubleSpinBox)
from app.engine.pdf_utils import mm_to_pt
from app.dialogs.format_combo import populate_format_combo, get_selected_size, handle_format_selection


class StepRepeatDialog(QDialog):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Repetition (Step & Repeat)")
        self.setMinimumWidth(400)
        self._setup_ui()

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

        grp_sheet = QGroupBox("Taille de la feuille")
        sl = QHBoxLayout(grp_sheet)
        sl.addWidget(QLabel("Format :"))
        self.combo_sheet = QComboBox()
        populate_format_combo(self.combo_sheet, "A3 Paysage")
        self.combo_sheet.activated.connect(lambda: handle_format_selection(self.combo_sheet, self))
        sl.addWidget(self.combo_sheet)
        layout.addWidget(grp_sheet)

        grp_copies = QGroupBox("Nombre de copies")
        cl = QVBoxLayout(grp_copies)
        self.chk_auto = QCheckBox("Automatique (remplir la feuille)")
        self.chk_auto.setChecked(True)
        cl.addWidget(self.chk_auto)
        manual = QHBoxLayout()
        manual.addWidget(QLabel("Horizontal :"))
        self.spin_h = QSpinBox()
        self.spin_h.setRange(1, 20)
        self.spin_h.setValue(2)
        self.spin_h.setEnabled(False)
        manual.addWidget(self.spin_h)
        manual.addWidget(QLabel("Vertical :"))
        self.spin_v = QSpinBox()
        self.spin_v.setRange(1, 20)
        self.spin_v.setValue(2)
        self.spin_v.setEnabled(False)
        manual.addWidget(self.spin_v)
        cl.addLayout(manual)
        layout.addWidget(grp_copies)
        self.chk_auto.toggled.connect(lambda c: self.spin_h.setEnabled(not c))
        self.chk_auto.toggled.connect(lambda c: self.spin_v.setEnabled(not c))

        grp_margins = QGroupBox("Marges (mm)")
        ml = QHBoxLayout(grp_margins)
        self.margins = {}
        for label in ["Haut", "Bas", "Gauche", "Droite"]:
            ml.addWidget(QLabel(f"{label}:"))
            spin = QDoubleSpinBox()
            spin.setRange(0, 100)
            spin.setValue(0)
            spin.setSuffix(" mm")
            ml.addWidget(spin)
            self.margins[label.lower()] = spin
        layout.addWidget(grp_margins)

        grp_spacing = QGroupBox("Espacement entre copies (mm)")
        spl = QHBoxLayout(grp_spacing)
        spl.addWidget(QLabel("Horizontal :"))
        self.spin_sp_h = QDoubleSpinBox()
        self.spin_sp_h.setRange(0, 50)
        self.spin_sp_h.setValue(0)
        self.spin_sp_h.setSuffix(" mm")
        spl.addWidget(self.spin_sp_h)
        spl.addWidget(QLabel("Vertical :"))
        self.spin_sp_v = QDoubleSpinBox()
        self.spin_sp_v.setRange(0, 50)
        self.spin_sp_v.setValue(0)
        self.spin_sp_v.setSuffix(" mm")
        spl.addWidget(self.spin_sp_v)
        layout.addWidget(grp_spacing)

        self.chk_crop = QCheckBox("Reperes de coupe")
        layout.addWidget(self.chk_crop)

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

    def get_settings(self):
        return {
            "sheet_size": get_selected_size(self.combo_sheet),
            "copies_h": None if self.chk_auto.isChecked() else self.spin_h.value(),
            "copies_v": None if self.chk_auto.isChecked() else self.spin_v.value(),
            "spacing_h": mm_to_pt(self.spin_sp_h.value()),
            "spacing_v": mm_to_pt(self.spin_sp_v.value()),
            "crop_marks": self.chk_crop.isChecked(),
        }