# Copyright (c) 2025, UChicago Argonne, LLC
# BSD OPEN SOURCE LICENSE. Full license can be found in LICENSE
# Copyright (c) 2025, UChicago Argonne, LLC
# BSD OPEN SOURCE LICENSE. Full license can be found in LICENSE
from functools import partial
from math import ceil
from os.path import dirname, join
from pathlib import Path

import pandas as pd
from polaris.runs.polaris_inputs import PolarisInputs
from polaris.analyze.transit_demand_metrics import TransitDemandMetrics
from polaris.analyze.transit_supply_metrics import TransitSupplyMetrics
from polaris.network.constants import WALK_AGENCY_ID as WID
from polaris.utils.database.db_utils import read_and_close
from qgis.PyQt import uic, QtGui
from qgis.PyQt.QtCore import QSizeF
from qgis.PyQt.QtWidgets import QDialog, QAbstractItemView
from qgis.core import QgsDiagramSettings, QgsDiagramLayerSettings, QgsRendererRange, QgsStackedBarDiagram
from qgis.core import QgsProject, QgsStyle, QgsVectorLayerJoinInfo, QgsGraduatedSymbolRenderer, QgsApplication
from qgis.core import QgsSymbol, QgsLinearlyInterpolatedDiagramRenderer, QgsPalLayerSettings, QgsTextFormat
from qgis.core import QgsTextBufferSettings, QgsVectorLayerSimpleLabeling, QgsPieDiagram

from ..common_tools import GetOutputFileName
from ..common_tools import layer_from_dataframe, PandasModel
from ..common_tools.mapping import color_ramp_shades

FORM_CLASS, _ = uic.loadUiType(join(dirname(__file__), "forms/transit_navigator.ui"))


class TransitNavigatorDialog(QDialog, FORM_CLASS):
    def __init__(self, _PQgis):
        QDialog.__init__(self)
        self.setupUi(self)
        self.iface = _PQgis.iface
        self.feed = None
        self._PQgis = _PQgis
        self.dm: TransitDemandMetrics = None
        if _PQgis.open_mode == "project":
            self.polaris_project = _PQgis.polaris_project
            self._p = self.polaris_project.network
            # Project need not always have an h5 file (especially when it is just built)
            if _PQgis.result_h5_path.exists():
                self.dm = TransitDemandMetrics(_PQgis.supply_path, _PQgis.result_h5_path)
        else:
            self._p = self._PQgis._network

        self.mapped_stops = False
        self.mapped_lines = False
        self.mapped_zones = False
        self.additional_demand = None
        self.additional_supply = None
        self.line_target_metric = ""
        self.line_map_layer = ""
        self.stop_target_metric = ""
        self.zone_target_metric = ""
        self.filtered = {}
        self.has_raw = "transit_raw_shapes" in self._PQgis.layers
        self.chb_raw_shapes.setEnabled(self.has_raw)
        self.sm = TransitSupplyMetrics(_PQgis.supply_path)

        self.sm_alt: TransitSupplyMetrics = None
        self.dm_alt: TransitDemandMetrics = None
        self._testing = False
        self.gtfs_types = {
            0: "Light rail",
            1: "Subway/Metro",
            2: "Rail",
            3: "Bus",
            4: "Ferry",
            5: "Cable tram",
            6: "Aerial lift",
            7: "Funicular",
            11: "Trolleybus",
            12: "Monorail",
        }

        fldr = join(dirname(dirname(__file__)), "style_loader", "styles")
        self.stops_layer = self._PQgis.layers["transit_stops"][0]
        self.stops_layer.loadNamedStyle(join(fldr, "transit_stops.qml"), True)

        self.zones_layer = self._PQgis.layers["zone"][0]
        self.zones_layer.loadNamedStyle(join(fldr, "zone_background.qml"), True)

        self.patterns_layer = self._PQgis.layers["transit_patterns"][0]
        self.patterns_layer.loadNamedStyle(join(fldr, "transit_pattern_directional.qml"), True)

        self.routes_layer = self._PQgis.layers["transit_routes"][0]
        self.routes_layer.loadNamedStyle(join(fldr, "transit_routes.qml"), True)

        for layer in [self.zones_layer, self.routes_layer, self.patterns_layer, self.stops_layer]:
            QgsProject.instance().addMapLayer(layer)

        self.chb_raw_shapes.setEnabled(self.has_raw)
        if self.has_raw:
            self.raw_shapes_layer = self._PQgis.layers["transit_raw_shapes"][0]
            self.raw_shapes_layer.loadNamedStyle(join(fldr, "transit_raw_shapes.qml"), True)
            QgsProject.instance().addMapLayer(self.raw_shapes_layer)
            self.raw_shapes_layer.setSubsetString('"pattern_id"=-999999')

        agency_sql = f"Select agency_id, agency from Transit_Agencies where agency_id != {WID}"
        sql = """SELECT pattern_id, coalesce(ST_X(ST_StartPoint(geo))-ST_X(ST_EndPoint(geo)),0) dx,
                        coalesce(ST_Y(ST_StartPoint(geo))-ST_Y(ST_EndPoint(geo)),0) dy
                  FROM Transit_Patterns"""
        with read_and_close(str(self._p.path_to_file), spatial=True) as conn:
            self.all_agencies = {ag: ag_id for ag_id, ag in conn.execute(agency_sql)}
            patt_df = pd.read_sql(sql, conn)

        patt_df = patt_df.assign(direction=pd.NA)
        patt_df.loc[(patt_df.dy.abs() >= patt_df.dx.abs()) & (patt_df.dy < 0), "direction"] = "N"
        patt_df.loc[(patt_df.dy.abs() >= patt_df.dx.abs()) & (patt_df.dy > 0), "direction"] = "S"
        patt_df.loc[(patt_df.dy.abs() < patt_df.dx.abs()) & (patt_df.dx > 0), "direction"] = "W"
        patt_df.loc[(patt_df.dy.abs() < patt_df.dx.abs()) & (patt_df.dx < 0), "direction"] = "E"
        self.pattern_directions = patt_df[["pattern_id", "direction"]]
        if max(patt_df.dx.max(), patt_df.dy.max()) == 0:
            self.rdo_ab_direction.setEnabled(False)
            self.rdo_ba_direction.setEnabled(False)

        self.all_routes = pd.DataFrame([])
        self.all_patterns = pd.DataFrame([])
        self.all_stops = pd.DataFrame([])
        self.stop_pattern = pd.DataFrame([])
        self.reset_data_global()
        self.cob_agency.addItems(list(self.all_agencies.keys()))

        self.cob_type.addItems([self.gtfs_types[tp] for tp in self.all_routes.route_type.unique()])
        self.gtfs_types = {v: k for k, v in self.gtfs_types.items()}

        for table in [self.list_routes, self.list_patterns, self.list_stops]:
            table.setSelectionBehavior(QAbstractItemView.SelectRows)
            table.setSelectionMode(QAbstractItemView.SingleSelection)

        self.chb_agency.toggled.connect(self.allow_filter_by_agency)
        self.chb_type.toggled.connect(self.allow_filter_by_gtfs_type)
        self.chb_time.toggled.connect(self.allow_filter_by_time)
        self.but_reset.clicked.connect(self.reset)
        self.but_reset_global.clicked.connect(self.reset_global)
        self.reset()

        self.chb_label_stops.toggled.connect(self.show_label_stops)
        self.chb_label_lines.toggled.connect(self.show_label_lines)
        self.chb_label_zones.toggled.connect(self.show_label_zones)

        self.ln_route_id.textChanged.connect(partial(self.search_route, "route_id"))
        self.ln_route.textChanged.connect(partial(self.search_route, "route"))

        self.ln_pattern_id.textChanged.connect(self.search_pattern)

        self.ln_stop_id.textChanged.connect(partial(self.search_stop, "stop_id"))
        self.ln_stop.textChanged.connect(partial(self.search_stop, "stop"))
        self.ln_stop_name.textChanged.connect(partial(self.search_stop, "stop_name"))

        self.cob_agency.currentIndexChanged.connect(self.filter_direction)
        self.cob_type.currentIndexChanged.connect(self.filter_direction)

        # Databases for comparison
        self.but_additional_supply.clicked.connect(partial(self.load_new_file, "supply"))
        self.but_additional_demand.clicked.connect(partial(self.load_new_file, "h5_result"))
        self.but_additional_demand.setEnabled(self.dm is not None)

        # Direction filtering
        self.rdo_all_directions.toggled.connect(self.filter_direction)
        self.rdo_ab_direction.toggled.connect(self.filter_direction)
        self.rdo_ba_direction.toggled.connect(self.filter_direction)

        # Sets mapping objects
        self.rdo_map_stops.toggled.connect(self.enable_stop_mapping)
        self.rdo_no_map_stops.toggled.connect(self.enable_stop_mapping)
        self.cob_stops_map_type.currentIndexChanged.connect(self.allows_colors_stops)
        self.enable_stop_mapping()
        self.but_map_stops.clicked.connect(self.map_stops)
        self.sld_stop_scale.valueChanged.connect(self.draw_stop_styles)
        self.stop_metric_layer = None

        # ZONES
        self.rdo_no_map_zones.toggled.connect(self.enable_zone_mapping)
        self.rdo_map_zones.toggled.connect(self.enable_zone_mapping)
        self.cob_zones_map_type.currentIndexChanged.connect(self.allows_colors_zones)
        self.enable_zone_mapping()
        self.but_map_zones.clicked.connect(self.map_zones)
        self.sld_zone_scale.valueChanged.connect(self.draw_zone_styles)
        self.zone_metric_layer = None

        self.rdo_no_map_routes.toggled.connect(self.enable_line_mapping)
        self.rdo_map_routes.toggled.connect(self.enable_line_mapping)
        self.cob_routes_map_type.currentIndexChanged.connect(self.allows_colors_line)
        self.enable_line_mapping()
        self.but_map_routes.clicked.connect(self.map_lines)
        self.sld_route_scale.valueChanged.connect(self.draw_line_styles)
        self.line_metric_layer = None
        self.time_from.timeChanged.connect(self.update_time)
        self.time_to.timeChanged.connect(self.update_time)

        self.glob_filter_box.setCollapsed(True)
        self.glob_stop_map.setCollapsed(True)
        self.glob_route_map.setCollapsed(True)
        self.glob_zone_map.setCollapsed(True)
        self.glob_scenario_comparison.setCollapsed(True)

        self.selected_stops = None
        self.selected_patterns = None
        self.selected_routes = None
        self.selected_from_time = None
        self.selected_to_time = None

    def load_new_file(self, file_type):
        formats = (
            ["Polaris Network(*.sqlite)", ".sqlite"] if file_type == "supply" else ["Polaris HDF5 result(*.h5)", ".h5"]
        )

        path, dtype = GetOutputFileName(QDialog(), f"Polaris {file_type}", [formats[0]], formats[1], self._PQgis.path)
        self._add_loaded_file(path, file_type)

    def _add_loaded_file(self, path, file_type):
        if file_type == "supply":
            if path is None or path == self._PQgis.supply_path:
                path = ""
                self.additional_supply = None
            else:
                self.additional_supply = path
                self.sm_alt = TransitSupplyMetrics(Path(path))
            self.lbl_additional_supply.setText(path)
        else:
            if path is None or (self.dm is not None and path == self.polaris_project.result_h5_file):
                path = ""
                self.additional_demand = None
            else:
                supply = self._PQgis.supply_path if self.additional_supply is None else self.additional_supply
                self.additional_demand = path
                if self.dm is not None:
                    self.dm_alt = TransitDemandMetrics(supply, Path(path))
            self.lbl_additional_demand.setText(path)

    def show_label_stops(self):
        self.build_label(
            self.stops_layer,
            f"metrics_{self.stop_target_metric}",
            self.chb_label_stops.isChecked(),
            self.mapped_stops,
            QgsPalLayerSettings.AroundPoint,
        )

    def show_label_lines(self):
        self.build_label(
            self.line_map_layer,
            f"metrics_{self.line_target_metric}",
            self.chb_label_lines.isChecked(),
            self.mapped_lines,
            QgsPalLayerSettings.Line,
        )

    def show_label_zones(self):
        self.build_label(
            self.zones_layer,
            f"metrics_{self.zone_target_metric}",
            self.chb_label_zones.isChecked(),
            self.mapped_zones,
            QgsPalLayerSettings.AroundPoint,
        )

    def build_label(self, layer, field, active_label, active_map, placement):
        if not active_map and not self._testing:
            return
        if not active_label:
            layer.setLabelsEnabled(False)
            layer.triggerRepaint()
            return

        label = QgsPalLayerSettings()
        txt_format = QgsTextFormat()
        txt_format.setFont(QtGui.QFont("Arial", 10))
        txt_format.setColor(QtGui.QColor("Black"))
        buff = QgsTextBufferSettings()
        buff.setSize(1)
        buff.setEnabled(True)
        txt_format.setBuffer(buff)
        label.setFormat(txt_format)
        label.fieldName = f"""to_int(round("{field}",0))"""
        label.isExpression = True
        label.placement = placement
        layer.setLabelsEnabled(True)
        layer.setLabeling(QgsVectorLayerSimpleLabeling(label))
        layer.triggerRepaint()

    def search_route(self, field: str):
        rt = str(self.ln_route_id.text()) if field == "route_id" else str(self.ln_route.text())
        self.routes = self.routes[self.routes[field].astype(str).str.contains(rt, case=False)]
        self.patterns = self.patterns[self.patterns.route_id.isin(self.routes.route_id)]

        filtered = self.stop_pattern[self.stop_pattern.pattern_id.isin(self.patterns.pattern_id)]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]

        self.populate_patterns()
        self.populate_routes()
        self.populate_stops()
        self.redo_map()

    def search_pattern(self):
        pat = str(self.ln_pattern_id.text())
        self.patterns = self.patterns[self.patterns.pattern_id.astype(str).str.contains(pat)]
        pattern_ids = list(self.patterns.pattern_id.values)
        route_ids = list(self.patterns.route_id.values)

        self.routes = self.all_routes[self.all_routes.route_id.isin(route_ids)]

        filtered = self.stop_pattern[self.stop_pattern.pattern_id.isin(pattern_ids)]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]
        self.populate_patterns()
        self.populate_routes()
        self.populate_stops()
        self.redo_map()

    def search_stop(self, field: str):
        stop = str(self.ln_stop_id.text()) if field == "stop_id" else str(self.ln_stop.text())
        stop = str(self.ln_stop_name.text()) if field == "stop_name" else stop

        filtered = self.stop_pattern[self.stop_pattern[field].astype(str).str.contains(stop, case=False)]
        self.patterns = self.all_patterns[self.all_patterns.pattern_id.isin(filtered.pattern_id)]
        self.routes = self.all_routes[self.all_routes.route_id.isin(self.patterns.route_id)]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]
        self.populate_patterns()
        self.populate_routes()
        self.populate_stops()
        self.redo_map()

    def reset_global(self):
        for item in [self.chb_agency, self.chb_type]:
            item.setChecked(False)
        self.reset_data_global()

    def reset_data_global(self):
        self.all_routes = self.sm.route_metrics()
        self.all_patterns = self.sm.pattern_metrics()
        self.all_patterns = self.all_patterns.merge(self.pattern_directions, on="pattern_id", how="left")
        self.all_stops = self.sm.stop_metrics()
        self.stop_pattern = self.sm._stop_pattern.copy(True)

        # If empty, we just throw in some arbitrary direction
        self.all_patterns.loc[self.all_patterns.direction.isna(), "direction"] = "S"

        self.reset()

    def reset(self):
        self.filtered.clear()
        self.ln_pattern_id.clear()
        self.reset_lists()

        if self.mapped_stops:
            self.map_stops()

        if self.mapped_lines:
            self.map_lines()

    def filter_direction(self):
        self.reset_data_global()
        if self.rdo_ab_direction.isChecked():
            self.all_patterns = self.all_patterns[self.all_patterns.direction.isin(["S", "W"])]
        elif self.rdo_ba_direction.isChecked():
            self.all_patterns = self.all_patterns[self.all_patterns.direction.isin(["N", "E"])]

        self.all_routes = self.all_routes[self.all_routes.route_id.isin(self.all_patterns.route_id)]
        filtered = self.stop_pattern[self.stop_pattern.pattern_id.isin(self.all_patterns.pattern_id)]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]
        self.global_filters_only()

    def reset_lists(self):
        self.routes = self.all_routes.copy(True)
        self.patterns = self.all_patterns.copy(True)
        self.stops = self.all_stops.copy(True)
        self.populate_routes()
        self.populate_patterns()
        self.populate_stops()
        self.routes_layer.setSubsetString("")
        self.patterns_layer.setSubsetString("")
        self.stops_layer.setSubsetString("")

    def allow_filter_by_agency(self):
        self.cob_agency.setEnabled(self.chb_agency.isChecked())
        self.global_filters()

    def global_filters(self):
        self.reset_data_global()
        self.global_filters_only()

    def global_filters_only(self):
        if self.chb_agency.isChecked():
            agency_id = self.all_agencies[self.cob_agency.currentText()]

            self.all_routes = self.all_routes[self.all_routes.agency_id == agency_id]
            self.all_patterns = self.all_patterns[self.all_patterns.route_id.isin(self.all_routes.route_id)]
            self.all_stops = self.all_stops[self.all_stops.agency_id == agency_id]
            self.stop_pattern = self.stop_pattern[self.stop_pattern.agency_id == agency_id]
        if self.chb_type.isChecked():
            gtfs_tp = self.gtfs_types[self.cob_type.currentText()]

            self.all_routes = self.all_routes[self.all_routes.route_type == gtfs_tp]
            self.all_patterns = self.all_patterns[self.all_patterns.route_id.isin(self.all_routes.route_id)]
            self.all_stops = self.all_stops[self.all_stops.route_type == gtfs_tp]
            self.stop_pattern = self.stop_pattern[self.stop_pattern.route_type == gtfs_tp]
        self.reset()
        self.redo_map()

    def allow_filter_by_gtfs_type(self):
        self.cob_type.setEnabled(self.chb_type.isChecked())
        self.global_filters()

    def allow_filter_by_time(self):
        for item in [self.lbl_time1, self.lbl_time2, self.time_from, self.time_to]:
            item.setEnabled(self.chb_time.isChecked())
        self.global_filters()

    def select_route(self):
        idx = [x.row() for x in list(self.list_routes.selectionModel().selectedRows())][0]

        route_id = self.routes.route_id.values[idx]
        self.filtered = {"routes": [route_id]}

        self.patterns = self.all_patterns[self.all_patterns.route_id == route_id]

        filtered = self.stop_pattern[self.stop_pattern.pattern_id.isin(self.patterns.pattern_id)]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]

        self.populate_patterns()
        self.populate_stops()
        self.redo_map()
        self.routes_layer.setSubsetString(f'"route_id" = {route_id}')
        self.iface.mapCanvas().setExtent(self.routes_layer.extent())
        self.iface.mapCanvas().refresh()

    def select_pattern(self):
        idx = [x.row() for x in list(self.list_patterns.selectionModel().selectedRows())][0]

        route_id = self.patterns.route_id.values[idx]
        self.routes = self.all_routes[self.all_routes.route_id == route_id]

        pattern_id = self.patterns.pattern_id.values[idx]
        self.filtered = {"patterns": [pattern_id]}
        filtered = self.stop_pattern[self.stop_pattern.pattern_id == pattern_id]
        self.stops = self.all_stops[self.all_stops.stop_id.isin(filtered.stop_id)]
        self.stops = self.stops.merge(
            self.stop_pattern[self.stop_pattern.pattern_id == pattern_id][["stop_id", "stop_order"]], on="stop_id"
        )
        self.stops.sort_values("stop_order", inplace=True)
        self.populate_routes()
        self.populate_stops()
        self.redo_map()
        self.patterns_layer.setSubsetString(f'"pattern_id" = {pattern_id}')
        if self.chb_raw_shapes.isChecked():
            self.raw_shapes_layer.setSubsetString(f'"pattern_id" = {pattern_id}')

    def select_stop(self):
        idx = [x.row() for x in list(self.list_stops.selectionModel().selectedRows())][0]

        stop_id = self.stops.stop_id.values[idx]
        self.filtered = {"stops": [stop_id]}
        filtered = self.stop_pattern[self.stop_pattern.stop_id == stop_id]
        self.patterns = self.all_patterns[self.all_patterns.pattern_id.isin(filtered.pattern_id)]
        self.routes = self.all_routes[self.all_routes.route_id.isin(self.patterns.route_id)]
        self.populate_patterns()
        self.populate_routes()
        self.redo_map()
        self.stops_layer.setSubsetString(f'"stop_id" = {stop_id}')

    def populate_routes(self):
        self.routes_model = PandasModel(self.routes[["route_id", "route"]])
        self.list_routes.setModel(self.routes_model)
        self.list_routes.setVerticalHeader(None)
        self.list_routes.selectionModel().selectionChanged.connect(self.select_route)

    def populate_patterns(self):
        self.patterns_model = PandasModel(self.patterns[["pattern_id"]])
        self.list_patterns.setModel(self.patterns_model)
        self.list_patterns.setVerticalHeader(None)
        self.list_patterns.selectionModel().selectionChanged.connect(self.select_pattern)

    def populate_stops(self):
        fields = ["stop_id", "stop", "stop_name"]
        fields += ["stop_order"] if "stop_order" in self.stops else []
        self.stops_model = PandasModel(self.stops[fields])
        self.list_stops.setModel(self.stops_model)
        self.list_stops.setVerticalHeader(None)
        self.list_stops.selectionModel().selectionChanged.connect(self.select_stop)

    def redo_map(self):
        if self.has_raw:
            self.raw_shapes_layer.setSubsetString('"pattern_id"=-999999')

        if self.stops.shape[0] > 0:
            stops = tuple(self.stops.stop_id.tolist())
            fltr = f'"stop_id" IN {str(stops)}' if len(stops) > 1 else f'"stop_id" = {stops[0]}'
            self.stops_layer.setSubsetString(fltr)
        else:
            self.stops_layer.setSubsetString('"stop_id"=-999999')

        if self.patterns.shape[0] > 0:
            patt = tuple(self.patterns.pattern_id.tolist())
            fltr = f'"pattern_id" IN {str(patt)}' if len(patt) > 1 else f'"pattern_id" = {patt[0]}'
            self.patterns_layer.setSubsetString(fltr)
            if self.chb_raw_shapes.isChecked():
                self.raw_shapes_layer.setSubsetString(fltr)
        else:
            self.patterns_layer.setSubsetString('"pattern_id"=-999999')

        if self.routes.shape[0] > 0:
            rt = tuple(self.routes.route_id.tolist())
            fltr = f'"route_id" IN {str(rt)}' if len(rt) > 1 else f'"route_id" = {rt[0]}'
            self.routes_layer.setSubsetString(fltr)
        else:
            self.routes_layer.setSubsetString('"route_id"=-999999')

        if self.mapped_stops:
            self.map_stops()
        if self.mapped_lines:
            self.map_lines()
        if self.mapped_zones:
            self.map_zones()

        for lyr in [self.stops_layer, self.patterns_layer, self.routes_layer, self.zones_layer]:
            lyr.triggerRepaint()
        ext = self.routes_layer.extent()
        ext.combineExtentWith(self.patterns_layer.extent())
        ext.combineExtentWith(self.stops_layer.extent())
        self.iface.mapCanvas().setExtent(ext)
        self.iface.mapCanvas().refresh()

    def enable_stop_mapping(self):
        default_style = QgsStyle().defaultStyle()
        for item in [
            self.cob_stops_map_type,
            self.cob_stops_map_info,
            self.cob_stops_color,
            self.sld_stop_scale,
            self.but_map_stops,
            self.lbl_scl_stop,
        ]:
            item.setEnabled(self.rdo_map_stops.isChecked())

        for cob in [self.cob_stops_map_type, self.cob_stops_map_info, self.cob_stops_color]:
            cob.clear()
        if self.rdo_map_stops.isChecked():
            self.cob_stops_map_type.addItems(["Color", "Thickness"])
            self.cob_stops_map_info.addItems(self.sm.list_stop_metrics())
            if self.dm is not None and self.dm.tables:
                self.cob_stops_map_info.addItems(self.dm.list_stop_metrics())
            self.cob_stops_color.addItems(list(default_style.colorRampNames()))
        else:
            self.mapped_stops = False
            fldr = join(dirname(dirname(__file__)), "style_loader", "styles")
            self.stops_layer.loadNamedStyle(join(fldr, "transit_stops.qml"), True)
            self.stops_layer.triggerRepaint()
        self.allows_colors_stops()
        self.iface.mapCanvas().refresh()

    def enable_zone_mapping(self):
        default_style = QgsStyle().defaultStyle()
        for item in [
            self.cob_zones_map_type,
            self.cob_zones_map_info,
            self.cob_zones_color,
            self.sld_zone_scale,
            self.but_map_zones,
            self.lbl_scl_zone,
        ]:
            item.setEnabled(self.rdo_map_zones.isChecked())

        for cob in [self.cob_zones_map_type, self.cob_zones_map_info, self.cob_zones_color]:
            cob.clear()

        if self.dm is None or not self.dm.tables:
            self.but_map_zones.setEnabled(False)
            return

        if self.rdo_map_zones.isChecked():
            self.cob_zones_map_type.addItems(["Color", "Pie chart", "Stacked bars"])
            if self.dm is not None and self.dm.tables:
                self.cob_zones_map_info.addItems(self.dm.list_zone_metrics())
            self.cob_zones_color.addItems(list(default_style.colorRampNames()))
        else:
            self.mapped_zones = False
            fldr = join(dirname(dirname(__file__)), "style_loader", "styles")
            self.zones_layer.loadNamedStyle(join(fldr, "zone_background.qml"), True)
            self.zones_layer.triggerRepaint()

        self.allows_colors_zones()
        self.but_map_zones.setEnabled(True)
        self.iface.mapCanvas().refresh()

    def allows_colors_stops(self):
        self.cob_stops_color.setVisible(self.cob_stops_map_type.currentText() == "Color")
        self.sld_stop_scale.setEnabled(self.cob_stops_map_type.currentText() != "Color")

    def allows_colors_zones(self):
        self.cob_zones_color.setVisible(self.cob_zones_map_type.currentText() == "Color")
        self.sld_zone_scale.setEnabled(self.cob_zones_map_type.currentText() != "Color")

    def map_stops(self):
        self.mapped_stops = True
        self.but_map_stops.setEnabled(False)
        if self.stop_metric_layer is not None:
            QgsProject.instance().removeMapLayers([self.stop_metric_layer.id()])
            rem = [lien.joinLayerId() for lien in self.stops_layer.vectorJoins()]
            for lien_id in rem:
                self.stops_layer.removeJoin(lien_id)

        minutes_from = self.time_from.time().hour() * 60 + self.time_from.time().minute()
        minutes_to = self.time_to.time().hour() * 60 + self.time_to.time().minute()
        from_time = minutes_from if self.chb_time.isChecked() else None
        to_time = minutes_to if self.chb_time.isChecked() else None

        stops = self.filtered.get("stops", self.stops.stop_id.tolist())
        patterns = self.filtered.get("patterns", self.patterns.pattern_id.tolist())
        routes = self.filtered.get("routes", self.routes.route_id.tolist())

        self.stop_target_metric = self.cob_stops_map_info.currentText()
        sample = self.sb_sample.value() / 100
        if self.stop_target_metric in self.sm.list_stop_metrics():
            df = self.sm.stop_metrics(
                from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
            )
            if self.additional_supply is not None:
                df2 = self.sm_alt.stop_metrics(
                    from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
                )
                df = df.merge(df2, on="stop_id", suffixes=("", "_alt"))
                for metric in self.sm.list_stop_metrics():
                    if self.rdo_absollute_diff.isChecked():
                        df.loc[:, metric] -= df.loc[:, f"{metric}_alt"]
                    else:
                        df.loc[:, metric] = 1 - (df.loc[:, f"{metric}_alt"] / df.loc[:, metric])
                df = df[["stop_id"] + self.sm.list_stop_metrics()]
        else:
            df = self.dm.stop_metrics(
                from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
            )
            df.loc[:, self.dm.list_stop_metrics()] /= sample

            if self.additional_demand is not None:
                df2 = self.dm_alt.stop_metrics(
                    from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
                )
                df2.loc[:, self.dm_alt.list_stop_metrics()] /= sample
                df = df.merge(df2, on="stop_id", suffixes=("", "_alt"))
                for metric in self.dm.list_stop_metrics():
                    if self.rdo_absollute_diff.isChecked():
                        df.loc[:, metric] -= df.loc[:, f"{metric}_alt"]
                    else:
                        df.loc[:, metric] = 1 - (df.loc[:, f"{metric}_alt"] / df.loc[:, metric])
                df = df[["stop_id"] + self.dm.list_stop_metrics()]

        self.stop_metric_layer = layer_from_dataframe(df, "stop_metrics")

        lien = QgsVectorLayerJoinInfo()
        lien.setJoinFieldName("stop_id")
        lien.setTargetFieldName("stop_id")
        lien.setJoinLayerId(self.stop_metric_layer.id())
        lien.setUsingMemoryCache(True)
        lien.setJoinLayer(self.stop_metric_layer)
        lien.setPrefix("metrics_")
        self.stops_layer.addJoin(lien)
        self.draw_stop_styles()
        self.but_map_stops.setEnabled(True)
        self.show_label_stops()

    def map_zones(self):
        self.mapped_zones = True
        self.but_map_zones.setEnabled(False)
        if self.zone_metric_layer is not None:
            QgsProject.instance().removeMapLayers([self.zone_metric_layer.id()])
            rem = [lien.joinLayerId() for lien in self.zones_layer.vectorJoins()]
            for lien_id in rem:
                self.zones_layer.removeJoin(lien_id)

        minutes_from = self.time_from.time().hour() * 60 + self.time_from.time().minute()
        minutes_to = self.time_to.time().hour() * 60 + self.time_to.time().minute()
        from_time = minutes_from if self.chb_time.isChecked() else None
        to_time = minutes_to if self.chb_time.isChecked() else None

        stops = self.filtered.get("stops", self.stops.stop_id.tolist())
        patterns = self.filtered.get("patterns", self.patterns.pattern_id.tolist())
        routes = self.filtered.get("routes", self.routes.route_id.tolist())

        self.zone_target_metric = self.cob_zones_map_info.currentText()
        sample = self.sb_sample.value() / 100

        df = self.dm.zone_metrics(
            from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
        )
        df.loc[:, self.dm.list_zone_metrics()] /= sample

        if self.additional_demand is not None:
            df2 = self.dm_alt.zone_metrics(
                from_minute=from_time, to_minute=to_time, routes=routes, patterns=patterns, stops=stops
            )
            df2.loc[:, self.dm_alt.list_zone_metrics()] /= sample
            df = df.merge(df2, on="zone", suffixes=("", "_alt"))
            for metric in self.dm.list_zone_metrics():
                if self.rdo_absollute_diff.isChecked():
                    df.loc[:, metric] -= df.loc[:, f"{metric}_alt"]
                else:
                    df.loc[:, metric] = 1 - (df.loc[:, f"{metric}_alt"] / df.loc[:, metric])
            df = df.reset_index()[["zone"] + self.dm.list_zone_metrics()]

        self.zone_metric_layer = layer_from_dataframe(df, "zone_metrics")

        lien = QgsVectorLayerJoinInfo()
        lien.setJoinFieldName("zone")
        lien.setTargetFieldName("zone")
        lien.setJoinLayerId(self.zone_metric_layer.id())
        lien.setUsingMemoryCache(True)
        lien.setJoinLayer(self.zone_metric_layer)
        lien.setPrefix("metrics_")
        self.zones_layer.addJoin(lien)
        self.show_label_zones()
        self.draw_zone_styles()
        self.but_map_zones.setEnabled(True)

    def draw_stop_styles(self):
        fld = f"metrics_{self.stop_target_metric}"
        idx = self.stops_layer.fields().indexFromName(fld)
        max_metric = self.stops_layer.maximumValue(idx)
        method = self.cob_stops_map_type.currentText()

        val = self.sld_stop_scale.value() / 2
        color_ramp_name = "Blues" if method != "Color" else self.cob_stops_color.currentText()
        self.map_ranges(fld, max_metric, method, self.stops_layer, val, color_ramp_name)
        self.but_map_stops.setEnabled(True)

    def draw_zone_styles(self):
        fld = f"metrics_{self.zone_target_metric}"
        idx = self.zones_layer.fields().indexFromName(fld)
        max_metric = self.zones_layer.maximumValue(idx)
        method = self.cob_zones_map_type.currentText()

        val = self.sld_zone_scale.value()
        color_ramp_name = "Blues" if method != "Color" else self.cob_zones_color.currentText()

        if method == "Color":
            self.map_ranges(fld, max_metric, method, self.zones_layer, val / 2, color_ramp_name)
        else:
            self.map_diagram(fld, max_metric, method, self.zones_layer, val)

        self.but_map_zones.setEnabled(True)

    def update_time(self):
        if self.mapped_stops:
            self.map_stops()

        if self.mapped_lines:
            self.map_lines()

    def enable_line_mapping(self):
        default_style = QgsStyle().defaultStyle()
        for item in [
            self.cob_routes_element,
            self.cob_routes_map_type,
            self.cob_routes_map_info,
            self.cob_routes_color,
            self.sld_route_scale,
            self.but_map_routes,
            self.lbl_scl_line,
        ]:
            # item.setVisible(self.rdo_map_routes.isChecked())
            item.setEnabled(self.rdo_map_routes.isChecked())

        for cob in [self.cob_routes_map_type, self.cob_routes_map_info, self.cob_routes_color, self.cob_routes_element]:
            cob.clear()
        if self.rdo_map_routes.isChecked():
            self.cob_routes_element.addItems(["Routes", "Patterns"])
            self.cob_routes_map_type.addItems(["Color", "Thickness"])
            self.cob_routes_map_info.addItems(self.sm.list_route_metrics())
            if self.dm is not None and self.dm.tables:
                self.cob_routes_map_info.addItems(self.dm.list_route_metrics())
            self.cob_routes_color.addItems(list(default_style.colorRampNames()))
        else:
            self.mapped_lines = False
            fldr = join(dirname(dirname(__file__)), "style_loader", "styles")
            self.patterns_layer.loadNamedStyle(join(fldr, "transit_pattern_directional.qml"), True)
            self.routes_layer.loadNamedStyle(join(fldr, "transit_routes.qml"), True)
            self.patterns_layer.triggerRepaint()
            self.routes_layer.triggerRepaint()
        self.allows_colors_line()
        self.iface.mapCanvas().refresh()

    def allows_colors_line(self):
        self.cob_routes_color.setVisible(self.cob_routes_map_type.currentText() == "Color")

    def map_lines(self):
        self.mapped_lines = True
        self.but_map_routes.setEnabled(False)
        if self.line_metric_layer is not None:
            QgsProject.instance().removeMapLayers([self.line_metric_layer.id()])

            for lyr in [self.routes_layer, self.patterns_layer]:
                rem = [lien.joinLayerId() for lien in lyr.vectorJoins()]
                for lien_id in rem:
                    lyr.removeJoin(lien_id)

        element = self.cob_routes_element.currentText()

        minutes_from = self.time_from.time().hour() * 60 + self.time_from.time().minute()
        minutes_to = self.time_to.time().hour() * 60 + self.time_to.time().minute()
        from_time = minutes_from if self.chb_time.isChecked() else None
        to_time = minutes_to if self.chb_time.isChecked() else None

        stops = self.filtered.get("stops", self.stops.stop_id.tolist())
        patterns = self.filtered.get("patterns", self.patterns.pattern_id.tolist())
        routes = self.filtered.get("routes", self.routes.route_id.tolist())
        self.line_target_metric = self.cob_routes_map_info.currentText()

        par = {"from_minute": from_time, "to_minute": to_time, "routes": routes, "patterns": patterns, "stops": stops}
        fld = "route_id" if element == "Routes" else "pattern_id"

        if self.line_target_metric in self.sm.list_route_metrics():
            df = self.sm.route_metrics(**par) if element == "Routes" else self.sm.pattern_metrics(**par)

            if self.additional_supply is not None:
                df2 = self.sm_alt.route_metrics(**par) if element == "Routes" else self.sm_alt.pattern_metrics(**par)
                df = df.merge(df2, on=fld, suffixes=("", "_alt"))
                for metric in self.sm.list_route_metrics():
                    if self.rdo_absollute_diff.isChecked():
                        df.loc[:, metric] -= df.loc[:, f"{metric}_alt"]
                    else:
                        df.loc[:, metric] = 1 - (df.loc[:, f"{metric}_alt"] / df.loc[:, metric])
                df = df[[fld] + self.sm.list_route_metrics()]

        else:
            _ = par.pop("stops")
            df = self.dm.route_metrics(**par) if element == "Routes" else self.dm.pattern_metrics(**par)
            sample = self.sb_sample.value() / 100
            df.loc[:, self.dm.list_route_metrics()] /= sample

            if self.additional_demand is not None:
                df2 = self.dm_alt.route_metrics(**par) if element == "Routes" else self.dm_alt.pattern_metrics(**par)
                df2.loc[:, self.dm_alt.list_route_metrics()] /= sample
                df = df.merge(df2, on=fld, suffixes=("", "_alt"))
                for metric in self.dm.list_route_metrics():
                    if self.rdo_absollute_diff.isChecked():
                        df.loc[:, metric] -= df.loc[:, f"{metric}_alt"]
                    else:
                        df.loc[:, metric] = 1 - (df.loc[:, f"{metric}_alt"] / df.loc[:, metric])
                df = df[[fld] + self.dm.list_route_metrics()]

        lyr = self.routes_layer if element == "Routes" else self.patterns_layer

        self.line_metric_layer = layer_from_dataframe(df, f"{element}_metrics")

        lien = QgsVectorLayerJoinInfo()
        lien.setJoinFieldName(fld)
        lien.setTargetFieldName(fld)
        lien.setJoinLayerId(self.line_metric_layer.id())
        lien.setUsingMemoryCache(True)
        lien.setJoinLayer(self.line_metric_layer)
        lien.setPrefix("metrics_")
        lyr.addJoin(lien)

        self.line_map_layer = lyr
        self.draw_line_styles()
        self.but_map_routes.setEnabled(True)
        self.show_label_lines()

    def draw_line_styles(self):
        fld = f"metrics_{self.line_target_metric}"
        idx = self.line_map_layer.fields().indexFromName(fld)
        max_metric = self.line_map_layer.maximumValue(idx)
        method = self.cob_routes_map_type.currentText()

        val = self.sld_route_scale.value() / 2
        color_ramp_name = "Blues" if method != "Color" else self.cob_routes_color.currentText()
        self.map_ranges(fld, max_metric, method, self.line_map_layer, val, color_ramp_name)

    def map_diagram(self, fld, max_metric, method, layer, val):
        if method == "Pie chart":
            diagram = QgsPieDiagram()
        elif method == "Stacked bars":
            diagram = QgsStackedBarDiagram()

        ds = QgsDiagramSettings()
        dColors = {fld: QtGui.QColor("#5a09a6")}

        ds.categoryColors = dColors.values()
        ds.categoryAttributes = dColors.keys()
        ds.categoryLabels = ds.categoryAttributes

        # Set renderer:
        dr = QgsLinearlyInterpolatedDiagramRenderer()
        dr.setLowerValue(0)
        dr.setUpperValue(max_metric or 0)
        dr.setUpperSize(QSizeF(val, val))
        dr.setClassificationField(fld)
        dr.setDiagram(diagram)
        dr.setDiagramSettings(ds)

        layer.setDiagramRenderer(dr)
        dls = QgsDiagramLayerSettings()
        dls.setPlacement(4)
        layer.setDiagramLayerSettings(dls)
        layer.triggerRepaint()

    def map_ranges(self, fld, max_metric, method, layer, val, color_ramp_name):
        intervals = 5
        max_metric = intervals if max_metric is None else max_metric
        values = [ceil(i * (max_metric / intervals)) for i in range(1, intervals + 1)]
        values = [0, 0.000001] + values
        color_ramp = color_ramp_shades(color_ramp_name, intervals)
        ranges = []
        for i in range(intervals):
            myColour = QtGui.QColor("#1e00ff") if method != "Color" else color_ramp[i]
            symbol = QgsSymbol.defaultSymbol(layer.geometryType())
            symbol.setColor(myColour)
            symbol.setOpacity(1)

            if i == 0:
                label = f"0/Null ({fld.replace('metrics_', '')})"
            elif i == 1:
                label = f"Up to {values[i + 1]:,.0f}"
            else:
                label = f"{values[i]:,.0f} to {values[i + 1]:,.0f}"

            ranges.append(QgsRendererRange(values[i], values[i + 1], symbol, label))

        sizes = [0, val] if method != "Color" else [val, val]
        renderer = QgsGraduatedSymbolRenderer("", ranges)
        renderer.setSymbolSizes(*sizes)
        renderer.setClassAttribute(f"""coalesce("{fld}", 0)""")

        if method != "Color":
            renderer.setGraduatedMethod(QgsGraduatedSymbolRenderer.GraduatedSize)

        classific_method = QgsApplication.classificationMethodRegistry().method("EqualInterval")
        renderer.setClassificationMethod(classific_method)

        layer.setRenderer(renderer)
        layer.triggerRepaint()
        self.iface.mapCanvas().setExtent(layer.extent())
        self.iface.mapCanvas().refresh()
