"""
Label conversion
"""

# /***************************************************************************
#  *                                                                         *
#  *   This program is free software; you can redistribute it and/or modify  *
#  *   it under the terms of the GNU General Public License as published by  *
#  *   the Free Software Foundation; either version 2 of the License, or     *
#  *   (at your option) any later version.                                   *
#  *                                                                         *
#  ***************************************************************************/

from typing import Optional

from qgis.core import (
    Qgis,
    QgsPalLayerSettings,
    QgsWkbTypes,
    QgsVectorLayer,
    QgsVectorLayerSimpleLabeling,
    QgsRuleBasedLabeling,
    QgsProperty,
    QgsUnitTypes,
    QgsMargins,
    QgsSimpleLineCallout,
    QgsManhattanLineCallout,
    QgsExpression,
)

from .expressions import ExpressionConverter
from .text_format import TextSymbolConverter
from .context import Context
from ..parser.exceptions import NotImplementedException
from ..parser.objects.annotate_layer_properties_collection import (
    AnnotateLayerPropertiesCollection,
)
from ..parser.objects.balloon_callout import BalloonCallout
from ..parser.objects.basic_overposter_layer_properties import (
    BasicOverposterLayerProperties,
)
from ..parser.objects.label_engine_layer_properties import LabelEngineLayerProperties
from ..parser.objects.label_style import LabelStyle
from ..parser.objects.line_callout import LineCallout
from ..parser.objects.maplex_overposter_layer_properties import (
    MaplexOverposterLayerProperties,
)
from ..parser.objects.maplex_label_engine_layer_properties import (
    MaplexLabelEngineLayerProperties,
)
from ..parser.objects.maplex_rotation_properties import MaplexRotationProperties
from ..parser.objects.marker_text_background import MarkerTextBackground
from ..parser.objects.simple_line_callout import SimpleLineCallout
from ..parser.objects.text_symbol import TextSymbol
from ..parser.objects import FeatureLayer, NumericFormat


class LabelConverter:
    """
    Label converter
    """

    TEXT_ALIGN_MAP = {}

    OBSTACLE_WEIGHT_MAP = {
        BasicOverposterLayerProperties.WEIGHT_NONE: 0,
        BasicOverposterLayerProperties.WEIGHT_LOW: 0.5,
        BasicOverposterLayerProperties.WEIGHT_MED: 1.0,
        BasicOverposterLayerProperties.WEIGHT_HIGH: 2.0,
    }

    LABEL_WEIGHT_MAP = {
        BasicOverposterLayerProperties.WEIGHT_NONE: 0,
        BasicOverposterLayerProperties.WEIGHT_LOW: 2,
        BasicOverposterLayerProperties.WEIGHT_MED: 5,
        BasicOverposterLayerProperties.WEIGHT_HIGH: 10,
    }

    @staticmethod
    def convert_annotation_collection(
        collection: AnnotateLayerPropertiesCollection,
        source_layer,
        dest_layer: QgsVectorLayer,
        context: Context,
    ):
        """
        Converts an annotation collection to QGIS labeling
        """
        if not collection:
            return

        if isinstance(collection, AnnotateLayerPropertiesCollection):
            properties = collection.properties
        else:
            properties = collection

        if len(properties) == 1 and not properties[0].class_filter:
            # one label class, use simple labeling
            properties = properties[0]
            label_settings = LabelConverter.convert_label_engine_layer_properties(
                properties,
                layer_geometry_type=dest_layer.geometryType(),
                source_layer=source_layer,
                context=context,
            )
            label_settings.drawLabels = properties.label_features

            labeling = QgsVectorLayerSimpleLabeling(label_settings)
            dest_layer.setLabeling(labeling)
        else:
            # multiple classes, use rule-based labeling
            root_rule = QgsRuleBasedLabeling.Rule(None)
            for p in properties:
                label_settings = LabelConverter.convert_label_engine_layer_properties(
                    p,
                    layer_geometry_type=dest_layer.geometryType(),
                    source_layer=source_layer,
                    context=context,
                )

                zoom_max = p.scale_range_min or 0
                zoom_min = p.scale_range_max or 0
                if zoom_max and zoom_min and zoom_max > zoom_min:
                    zoom_min, zoom_max = zoom_max, zoom_min

                rule = QgsRuleBasedLabeling.Rule(
                    label_settings,
                    zoom_max,
                    zoom_min,
                    ExpressionConverter.convert_esri_sql(p.class_filter)
                    if p.class_filter
                    else "",
                    p.class_name,
                )
                rule.setActive(p.label_features)
                root_rule.appendChild(rule)
            labeling = QgsRuleBasedLabeling(root_rule)
            dest_layer.setLabeling(labeling)

    @staticmethod
    def convert_label_text_symbol(
        text_symbol, dest_label_settings, context: Context, reference_scale=None
    ):
        """
        Converts the label text symbol
        """
        text_format = TextSymbolConverter.text_symbol_to_qgstextformat(
            text_symbol, context, reference_scale
        )

        if text_symbol.background_symbol:
            callout = LabelConverter.convert_callout(
                text_symbol.background_symbol, context, reference_scale
            )
            if callout:
                dest_label_settings.setCallout(callout)
                if isinstance(text_symbol.background_symbol, BalloonCallout):
                    # we don't want double up of background vs callout for symbol, so remove background symbol
                    # from text format
                    background = text_format.background()
                    background.setEnabled(False)
                    text_format.setBackground(background)

        dest_label_settings.setFormat(text_format)
        dest_label_settings.multilineAlign = LabelConverter.TEXT_ALIGN_MAP[
            text_symbol.horizontal_alignment
        ]

    @staticmethod
    def convert_overposter(
        overposter,  # pylint: disable=too-many-branches,too-many-statements
        maplex_overposter,
        layer_geometry_type: QgsWkbTypes.Type,
        dest_label_settings: QgsPalLayerSettings,
        context: Context,
    ):
        """
        Converts overposter settings
        """

        if layer_geometry_type in (
            QgsWkbTypes.GeometryType.PointGeometry,
            QgsWkbTypes.GeometryType.UnknownGeometry,
        ):
            if overposter is not None and overposter.point_placement_method in (
                BasicOverposterLayerProperties.POINT_PLACEMENT_ON_TOP,
            ):
                dest_label_settings.placement = QgsPalLayerSettings.Placement.OverPoint
                dest_label_settings.layerType = QgsWkbTypes.GeometryType.PointGeometry
            elif overposter is not None and overposter.point_placement_method in (
                BasicOverposterLayerProperties.POINT_PLACEMENT_AROUND,
            ):
                dest_label_settings.placement = (
                    QgsPalLayerSettings.Placement.OrderedPositionsAroundPoint
                )
                dest_label_settings.layerType = QgsWkbTypes.GeometryType.PointGeometry
                if overposter.point_placement_priorities:
                    priorities = []
                    for i in range(1, 4):
                        if (
                            "TR" not in priorities
                            and overposter.point_placement_priorities.top_right == i
                        ):
                            priorities.append("TR")
                        if (
                            "TL" not in priorities
                            and overposter.point_placement_priorities.top_left == i
                        ):
                            priorities.append("TL")
                        if (
                            "BR" not in priorities
                            and overposter.point_placement_priorities.bottom_right == i
                        ):
                            priorities.append("BR")
                        if (
                            "BL" not in priorities
                            and overposter.point_placement_priorities.bottom_left == i
                        ):
                            priorities.append("BL")
                        if (
                            "R" not in priorities
                            and overposter.point_placement_priorities.center_right == i
                        ):
                            priorities.append("R")
                        if (
                            "L" not in priorities
                            and overposter.point_placement_priorities.center_left == i
                        ):
                            priorities.append("L")
                        if (
                            "T" not in priorities
                            and overposter.point_placement_priorities.top_center == i
                        ):
                            priorities.append("T")
                        if (
                            "B" not in priorities
                            and overposter.point_placement_priorities.bottom_center == i
                        ):
                            priorities.append("B")
                    dd = dest_label_settings.dataDefinedProperties()
                    dd.setProperty(
                        QgsPalLayerSettings.Property.PredefinedPositionOrder,
                        QgsProperty.fromExpression("'{}'".format(",".join(priorities))),
                    )
                    dest_label_settings.setDataDefinedProperties(dd)
            else:
                # for now - TODO  POINT_PLACEMENT_ROTATION_FIELD , POINT_PLACEMENT_SPECIFIED_ANGLES
                dest_label_settings.placement = (
                    QgsPalLayerSettings.Placement.AroundPoint
                )
        elif layer_geometry_type == QgsWkbTypes.GeometryType.LineGeometry:
            placement_flags = 0
            try:
                # TODO - horizontal
                dest_label_settings.placement = (
                    QgsPalLayerSettings.Placement.Horizontal
                    if overposter.line_label_position.horizontal
                    else QgsPalLayerSettings.Placement.Curved
                    if overposter.line_label_position.curved
                    else QgsPalLayerSettings.Placement.Line
                )

                if overposter.line_label_position.below:
                    placement_flags |= QgsPalLayerSettings.BelowLine
                if overposter.line_label_position.above:
                    placement_flags |= QgsPalLayerSettings.AboveLine
                if overposter.line_label_position.online:
                    placement_flags |= QgsPalLayerSettings.OnLine
                if not overposter.line_label_position.follow_line_orientation:
                    placement_flags |= QgsPalLayerSettings.MapOrientation
            except AttributeError:
                if maplex_overposter:
                    if maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_CENTERED_HORIZONTAL_ON_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Horizontal
                        )
                        placement_flags = (
                            QgsPalLayerSettings.OnLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_CENTERED_STRAIGHT_ON_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Line
                        )
                        placement_flags = (
                            QgsPalLayerSettings.OnLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_CENTERED_CURVED_ON_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Curved
                        )
                        placement_flags = (
                            QgsPalLayerSettings.OnLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_CENTERED_PERPENDICULAR_ON_LINE,
                    ):
                        context.push_warning(
                            "Perpendicular line labels are not supported by QGIS"
                        )

                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Line
                        )
                        placement_flags = (
                            QgsPalLayerSettings.OnLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_OFFSET_HORIZONTAL_FROM_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Horizontal
                        )
                        placement_flags = (
                            QgsPalLayerSettings.AboveLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_OFFSET_STRAIGHT_FROM_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Line
                        )
                        placement_flags = (
                            QgsPalLayerSettings.AboveLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_OFFSET_CURVED_FROM_LINE,
                    ):
                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Curved
                        )
                        placement_flags = (
                            QgsPalLayerSettings.AboveLine
                            | QgsPalLayerSettings.MapOrientation
                        )
                    elif maplex_overposter.line_placement_method in (
                        MaplexOverposterLayerProperties.LINE_PLACEMENT_OFFSET_PERPENDICULAR_FROM_LINE,
                    ):
                        context.push_warning(
                            "Perpendicular line labels are not supported by QGIS"
                        )

                        dest_label_settings.placement = (
                            QgsPalLayerSettings.Placement.Line
                        )
                        placement_flags = (
                            QgsPalLayerSettings.AboveLine
                            | QgsPalLayerSettings.MapOrientation
                        )

            dest_label_settings.placementFlags = placement_flags
            # NOT supported:
            # at start/at end
            # perpendicular
            # before/after distance

        else:
            dest_label_settings.placement = QgsPalLayerSettings.Placement.Horizontal
            if Qgis.QGIS_VERSION_INT >= 32600:
                dest_label_settings.multilineAlign = Qgis.LabelMultiLineAlignment.Center
            else:
                dest_label_settings.multilineAlign = (
                    QgsPalLayerSettings.MultiLineAlign.MultiCenter
                )

        # label_settings.placementFlags
        # label_settings.centroidWhole
        # label_settings.centroidInside
        # label_settings.fitInPolygonOnly

        if overposter:
            dest_label_settings.dist = overposter.offset

        dest_label_settings.distUnits = QgsUnitTypes.RenderUnit.RenderPoints
        dest_label_settings.offsetType = QgsPalLayerSettings.OffsetType.FromSymbolBounds

        # label_settings.repeatDistance
        # label_settings.repeatDistanceUnit
        # label_settings.quadOffset
        # label_settings.xOffset
        # label_settings.yOffset
        # label_settings.offsetUnits
        # label_settings.angleOffset

        try:
            dest_label_settings.priority = LabelConverter.LABEL_WEIGHT_MAP[
                overposter.label_weight
            ]
        except AttributeError:
            # maplex -- where is this?
            pass

        # label_settings.displayAll
        # label_settings.upsidedownLabels

        dest_label_settings.labelPerPart = False
        try:
            dest_label_settings.labelPerPart = (
                overposter.number_restriction
                == BasicOverposterLayerProperties.NUM_ONE_PER_PART
            )
        except AttributeError:
            pass  # TODO - maplex

        # label_settings.mergeLines

        if overposter:
            try:
                dest_label_settings.obstacleFactor = LabelConverter.OBSTACLE_WEIGHT_MAP[
                    overposter.feature_weight
                ]
            except KeyError:
                # maplex
                if overposter.feature_weight is not None:
                    dest_label_settings.obstacleFactor = (
                        overposter.feature_weight / 250.0
                    )

        if isinstance(maplex_overposter, MaplexOverposterLayerProperties):
            if maplex_overposter.rotation_properties.rotate_by_attribute:
                if (
                    maplex_overposter.rotation_properties.rotation_type
                    == MaplexRotationProperties.ROTATE_LABEL_ARITHMETIC
                ):
                    rotation_expression = '-"{}"'.format(
                        maplex_overposter.rotation_properties.rotation_attribute
                    )
                    dd = dest_label_settings.dataDefinedProperties()
                    dd.setProperty(
                        QgsPalLayerSettings.Property.LabelRotation,
                        QgsProperty.fromExpression(rotation_expression),
                    )
                    dest_label_settings.setDataDefinedProperties(dd)
                elif (
                    maplex_overposter.rotation_properties.rotation_type
                    == MaplexRotationProperties.ROTATE_LABEL_GEOGRAPHIC
                ):
                    dd = dest_label_settings.dataDefinedProperties()
                    dd.setProperty(
                        QgsPalLayerSettings.Property.LabelRotation,
                        QgsProperty.fromField(
                            maplex_overposter.rotation_properties.rotation_attribute
                        ),
                    )
                    dest_label_settings.setDataDefinedProperties(dd)

        if overposter:
            dest_label_settings.obstacle = overposter.feature_weight not in (
                BasicOverposterLayerProperties.WEIGHT_NONE,
            )
        # label_settings.obstacleType

    @staticmethod
    def convert_label_style(
        properties: LabelStyle, context: Context
    ) -> QgsPalLayerSettings:
        """
        Converts a LabelStyle to QGIS equivalent
        """
        label_settings = QgsPalLayerSettings()
        label_settings.drawLabels = True

        LabelConverter.convert_label_text_symbol(
            properties.text_symbol, label_settings, context
        )
        LabelConverter.convert_overposter(
            properties.overposter,
            properties.overposter
            if isinstance(properties.overposter, MaplexOverposterLayerProperties)
            else None,
            QgsWkbTypes.GeometryType.UnknownGeometry,
            label_settings,
            context,
        )

        label_settings.layerType = QgsWkbTypes.GeometryType.PointGeometry
        return label_settings

    @staticmethod
    def convert_label_engine_layer_properties(
        properties: LabelEngineLayerProperties,
        layer_geometry_type,
        source_layer: Optional[object],
        context: Context,
    ) -> QgsPalLayerSettings:
        """
        Converts LabelEngineLayerProperties to QGIS equivalent
        """
        label_settings = QgsPalLayerSettings()
        label_settings.drawLabels = properties.label_features

        if isinstance(
            properties, (LabelEngineLayerProperties, MaplexLabelEngineLayerProperties)
        ):
            LabelConverter.convert_label_text_symbol(
                properties.text_symbol, label_settings, context
            )
        else:
            LabelConverter.convert_label_text_symbol(
                properties.text_symbol.symbol, label_settings, context
            )

        label_settings.fieldName = ExpressionConverter.convert(
            properties.expression,
            properties.expression_parser,
            properties.advanced_expression,
            context,
        )

        if label_settings.fieldName:
            exp = QgsExpression(label_settings.fieldName)
            if exp.isField():
                label_settings.isExpression = False
                label_settings.fieldName = exp.rootNode().name()
                if source_layer and isinstance(source_layer, FeatureLayer):
                    for k, field_info in source_layer.field_info.items():
                        if k.lower() == label_settings.fieldName.lower():
                            if (
                                isinstance(field_info.number_format, NumericFormat)
                                and field_info.number_format.rounding == 0
                            ):
                                label_settings.isExpression = True
                                if field_info.number_format.rounding_value == 0:
                                    label_settings.fieldName = 'round("{}")'.format(
                                        label_settings.fieldName
                                    )
                                else:
                                    label_settings.fieldName = 'round("{}", {})'.format(
                                        label_settings.fieldName,
                                        field_info.number_format.rounding_value,
                                    )
                                break
            else:
                label_settings.isExpression = True

        LabelConverter.convert_overposter(
            properties.overposter,
            properties.overposter
            if isinstance(properties.overposter, MaplexOverposterLayerProperties)
            else None,
            layer_geometry_type,
            label_settings,
            context,
        )

        label_settings.scaleVisibility = bool(
            properties.scale_range_max or properties.scale_range_min
        )

        # layer.zoom_max = "don't show when zoomed out beyond"
        zoom_max = properties.scale_range_max or 0
        # layer.zoom_min = "don't show when zoomed in beyond"
        zoom_min = properties.scale_range_min or 0

        if zoom_max and zoom_min and zoom_min > zoom_max:
            # inconsistent scale range -- zoom_max should be bigger number than zoom_min
            zoom_min, zoom_max = zoom_max, zoom_min

        # qgis maximum scale = don't show when zoomed in beyond, i.e. ArcGIS scale_range_min
        label_settings.maximumScale = zoom_min
        # qgis minimum scale = don't show when zoomed out beyond, i.e. ArcGIS scale_range_max
        label_settings.minimumScale = zoom_max

        return label_settings

    @staticmethod
    def convert_callout(callout, context: Context, reference_scale=None):
        """
        Converts a callout
        """
        if isinstance(callout, MarkerTextBackground):
            # not a callout
            return None
        elif isinstance(callout, SimpleLineCallout):
            return LabelConverter.convert_simple_line_callout(
                callout, context, reference_scale
            )
        elif isinstance(callout, LineCallout):
            return LabelConverter.convert_line_callout(
                callout, context, reference_scale
            )
        elif isinstance(callout, BalloonCallout):
            return LabelConverter.convert_balloon_callout(
                callout, context, reference_scale
            )
        else:
            return None
            raise NotImplementedException(
                "Converting {} not implemented yet".format(callout.__class__.__name__)
            )

    @staticmethod
    def convert_simple_line_callout(
        callout: SimpleLineCallout,
        context: Context,
        reference_scale=None,
    ):  # pylint: disable=unused-argument
        """
        Converts a SimpleLineCallout
        """
        from .symbols import SymbolConverter  # pylint: disable=import-outside-toplevel,cyclic-import

        res = QgsSimpleLineCallout()
        if isinstance(callout, SimpleLineCallout):
            symbol = SymbolConverter.Symbol_to_QgsSymbol(callout.line_symbol, context)
        else:
            if not callout.leader_line_symbol:
                return None

            symbol = SymbolConverter.Symbol_to_QgsSymbol(
                callout.leader_line_symbol, context
            )
        res.setLineSymbol(symbol)

        res.setEnabled(True)

        if isinstance(callout, SimpleLineCallout):
            res.setMinimumLength(context.convert_size(callout.tolerance))
        else:
            res.setMinimumLength(context.convert_size(callout.leader_tolerance or 0))
        res.setMinimumLengthUnit(context.units)

        return res

    @staticmethod
    def convert_line_callout(
        callout: LineCallout, context: Context, reference_scale=None
    ):
        """
        Converts a LineCallout
        """
        if callout.accent_symbol:
            context.push_warning("Callout accent symbols are not supported by QGIS")
        if callout.border_symbol:
            context.push_warning("Callout border symbols are not supported by QGIS")

        from .symbols import SymbolConverter  # pylint: disable=import-outside-toplevel,cyclic-import

        if callout.style == LineCallout.STYLE_BASE:
            res = QgsManhattanLineCallout()
        elif callout.style == LineCallout.STYLE_MIDPOINT:
            res = QgsSimpleLineCallout()
        else:
            # raise NotImplementedException('QGIS has no support for {} callout styles'.format(LineCallout.style_to_string(callout.style)))
            res = QgsSimpleLineCallout()

        if not callout.leader_symbol:
            return None

        symbol = SymbolConverter.Symbol_to_QgsSymbol(callout.leader_symbol, context)

        # qgis renders these lines in the opposite direction to Arc!
        symbol = SymbolConverter.reverse_line_symbol(symbol)

        if reference_scale:
            symbol.setOutputUnit(QgsUnitTypes.RenderUnit.RenderMetersInMapUnits)
            if context.units == QgsUnitTypes.RenderUnit.RenderMillimeters:
                symbol.setWidth(symbol.width() * reference_scale * 0.001)
            else:
                symbol.setWidth(symbol.width() * reference_scale * 0.000352778)
        res.setLineSymbol(symbol)

        res.setEnabled(True)

        res.setMinimumLength(context.convert_size(callout.tolerance))
        res.setMinimumLengthUnit(context.units)

        # GAP - is this from the label or the feature??
        # margins -- is this from the label?

        return res

    @staticmethod
    def convert_balloon_callout(
        callout: BalloonCallout, context: Context, reference_scale=None
    ):  # pylint: disable=unused-argument
        """
        Converts a BalloonCallout
        """
        try:
            from qgis.core import QgsBalloonCallout  # pylint: disable=import-outside-toplevel
        except ImportError:
            context.push_warning(
                "Converting balloon callouts requires QGIS 3.20 or later"
            )
            return None

        if callout.style == BalloonCallout.STYLE_OVAL:
            context.push_warning(
                "Oval style balloon callouts are not supported by QGIS"
            )
            return None

        from .symbols import SymbolConverter  # pylint: disable=import-outside-toplevel,cyclic-import

        res = QgsBalloonCallout()

        if not callout.fill_symbol:
            return None

        symbol = SymbolConverter.Symbol_to_QgsSymbol(callout.fill_symbol, context)
        res.setFillSymbol(symbol)
        res.setEnabled(True)
        res.setWedgeWidth(context.convert_size(5.6))
        res.setWedgeWidthUnit(context.units)

        if callout.style == BalloonCallout.STYLE_ROUNDED_RECTANGLE:
            res.setCornerRadius(context.convert_size(5.6))
            res.setCornerRadiusUnit(context.units)

        margin_left = context.convert_size(callout.margin_left)
        margin_right = context.convert_size(callout.margin_right)
        margin_top = context.convert_size(callout.margin_top)
        margin_bottom = context.convert_size(callout.margin_bottom)
        res.setMargins(QgsMargins(margin_left, margin_top, margin_right, margin_bottom))
        res.setMarginsUnit(context.units)

        return res


if Qgis.QGIS_VERSION_INT >= 32600:
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_LEFT] = (
        Qgis.LabelMultiLineAlignment.Left
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_CENTER] = (
        Qgis.LabelMultiLineAlignment.Center
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_RIGHT] = (
        Qgis.LabelMultiLineAlignment.Right
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_FULL] = (
        Qgis.LabelMultiLineAlignment.Justify
    )
else:
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_LEFT] = (
        QgsPalLayerSettings.MultiLineAlign.MultiLeft
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_CENTER] = (
        QgsPalLayerSettings.MultiLineAlign.MultiCenter
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_RIGHT] = (
        QgsPalLayerSettings.MultiLineAlign.MultiRight
    )
    LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_FULL] = (
        QgsPalLayerSettings.MultiLineAlign.MultiLeft
    )  # doesn't directly map

    if Qgis.QGIS_VERSION_INT > 31600:
        LabelConverter.TEXT_ALIGN_MAP[TextSymbol.HALIGN_FULL] = (
            QgsPalLayerSettings.MultiLineAlign.MultiJustify
        )
