"""Builder for switch timing and combo-selection settings section."""

from PyQt6.QtWidgets import (
    QButtonGroup,
    QComboBox,
    QFormLayout,
    QGroupBox,
    QHBoxLayout,
    QLabel,
    QLineEdit,
    QPushButton,
    QVBoxLayout,
)

from python_app.gui.controllers.sections.views import SwitchView, SectionView
from python_app.models.gui_profile_schema import GuiStateModel
from python_app.models.run_config_schema import RunConfigModel


def build_switch_group(config: RunConfigModel, gui: GuiStateModel) -> SwitchView:
    """Create switch timing field and two explicit combo-selection modes."""
    view = SectionView(QGroupBox("Switches"))
    group = view.group
    layout = QVBoxLayout(group)
    layout.setSpacing(8)

    switch_defaults = gui.switches

    global_form = QFormLayout()
    global_form.setFieldGrowthPolicy(QFormLayout.FieldGrowthPolicy.AllNonFixedFieldsGrow)
    settling_ms = view.add("_settling_ms", QLineEdit(str(config.runtime.settling_ms)))
    global_form.addRow("Settling (ms)", settling_ms)
    layout.addLayout(global_form)

    combos_text = view.add("_combos_text", QLineEdit(str(switch_defaults.combos_text)))
    combos_text.setPlaceholderText("empty = full matrix, or input:output,input:output")
    run_combos_select_button = QPushButton("Select")
    run_combos_select_button.setCheckable(True)

    combos_row = QHBoxLayout()
    combos_row.setSpacing(8)
    combos_row.addWidget(QLabel("Run combos"))
    combos_row.addWidget(combos_text, stretch=1)
    combos_row.addWidget(run_combos_select_button)
    layout.addLayout(combos_row)

    single_combo_output = view.add("_single_combo_output", QLineEdit(str(switch_defaults.single_output)))
    single_combo_output.setPlaceholderText("0")
    single_combo_input = view.add("_single_combo_input", QLineEdit(str(switch_defaults.single_input)))
    single_combo_input.setPlaceholderText("0")
    single_combo_select_button = QPushButton("Select")
    single_combo_select_button.setCheckable(True)

    single_row = QHBoxLayout()
    single_row.setSpacing(8)
    single_row.addWidget(QLabel("Single combo"))
    single_row.addWidget(QLabel("Input"))
    single_row.addWidget(single_combo_input)
    single_row.addWidget(QLabel("Output"))
    single_row.addWidget(single_combo_output)
    single_row.addWidget(single_combo_select_button)
    layout.addLayout(single_row)

    combo_select_group = QButtonGroup(group)
    combo_select_group.setExclusive(True)
    combo_select_group.addButton(run_combos_select_button)
    combo_select_group.addButton(single_combo_select_button)

    display_row = QHBoxLayout()
    display_row.addWidget(QLabel("B-scan pair"))
    display_combo = view.add("_display_combo", QComboBox())
    display_combo.setEnabled(False)
    display_row.addWidget(display_combo, stretch=1)
    next_combo_button = QPushButton("Next Combination")
    next_combo_button.setEnabled(False)
    display_row.addWidget(next_combo_button)
    layout.addLayout(display_row)

    return SwitchView(group=group, fields=view.fields, select_text=run_combos_select_button,
                      select_single=single_combo_select_button, combos=combos_text,
                      single_input=single_combo_input, single_output=single_combo_output,
                      display_combo=display_combo, next_combo=next_combo_button)