"""
Draw test nodes, ways, and relations.
"""
import logging
from pathlib import Path
from typing import Optional

import numpy as np
from svgwrite import Drawing

from map_machine.constructor import Constructor
from map_machine.geometry.boundary_box import BoundaryBox
from map_machine.geometry.flinger import Flinger
from map_machine.map_configuration import MapConfiguration
from map_machine.mapper import Map
from map_machine.osm.osm_reader import OSMData, OSMNode, OSMWay, Tags
from map_machine.osm.tags import HIGHWAY_VALUES, AEROWAY_VALUES, RAILWAY_TAGS
from map_machine.pictogram.icon import ShapeExtractor
from map_machine.scheme import Scheme
from map_machine.workspace import Workspace

workspace: Workspace = Workspace(Path("temp"))

SCHEME: Scheme = Scheme.from_file(workspace.DEFAULT_SCHEME_PATH)
SHAPE_EXTRACTOR: ShapeExtractor = ShapeExtractor(
    workspace.ICONS_PATH, workspace.ICONS_CONFIG_PATH
)
DEFAULT_ZOOM: float = 18.0

ROAD_WIDTHS_AND_FEATURES: list[dict[str, str]] = [
    {"width": "4"},
    {"width": "8"},
    {"width": "12"},
    {"width": "16"},
    {"bridge": "yes", "width": "4"},
    {"bridge": "yes", "width": "8"},
    {"tunnel": "yes", "width": "4"},
    {"tunnel": "yes", "width": "8"},
    {"ford": "yes", "width": "4"},
    {"ford": "yes", "width": "8"},
    {"embankment": "yes", "width": "4"},
    {"embankment": "yes", "width": "8"},
]
ROAD_LANES_AND_FEATURES: list[dict[str, str]] = [
    {"lanes": "1"},
    {"lanes": "2"},
    {"lanes": "3"},
    {"lanes": "4"},
    {"bridge": "yes", "lanes": "1"},
    {"bridge": "yes", "lanes": "2"},
    {"tunnel": "yes", "lanes": "1"},
    {"tunnel": "yes", "lanes": "2"},
    {"ford": "yes", "lanes": "1"},
    {"ford": "yes", "lanes": "2"},
    {"embankment": "yes", "lanes": "1"},
    {"embankment": "yes", "lanes": "2"},
]


# See https://wiki.openstreetmap.org/wiki/Proposed_features/placement

PLACEMENT_FEATURES_1: list[dict[str, str]] = [
    {"lanes": "1"},
    {"lanes": "2", "placement": "middle_of:1"},
    {"lanes": "4", "placement": "middle_of:2"},
    {"placement": "transition"},
    {"lanes": "3", "placement": "right_of:1"},  # or placement=left_of:2
]
PLACEMENT_FEATURES_2: list[dict[str, str]] = [
    {"lanes": "2"},
    # or placement:backward=left_of:1
    {"lanes": "3", "placement:forward": "left_of:1"},
    {"lanes": "3", "placement": "transition"},
    {"lanes": "4", "placement:backward": "middle_of:1"},
    {"lanes": "3"},
]


class Grid:
    """Creating map with elements ordered in grid."""

    def __init__(self, x_step: float = 0.0002, y_step: float = 0.0003):
        self.x_step: float = x_step
        self.y_step: float = y_step
        self.index: int = 0
        self.nodes: dict[OSMNode, tuple[int, int]] = {}
        self.max_j: float = 0
        self.max_i: float = 0
        self.way_id: int = 0
        self.osm_data: OSMData = OSMData()

    def add_node(self, tags: Tags, i: int, j: int) -> OSMNode:
        """Add OSM node to the grid."""
        self.index += 1
        node: OSMNode = OSMNode(
            tags,
            self.index,
            np.array((-i * self.y_step, j * self.x_step)),
        )
        self.nodes[node] = (j, i)
        self.max_j = max(self.max_j, j * self.x_step)
        self.max_i = max(self.max_i, i * self.y_step)
        return node

    def add_way(self, tags: Tags, nodes: list[OSMNode]) -> None:
        """Add OSM way to the grid."""
        osm_way: OSMWay = OSMWay(tags, self.way_id, nodes)
        self.osm_data.add_way(osm_way)
        self.way_id += 1

    def get_boundary_box(self) -> BoundaryBox:
        """Compute resulting boundary box with margin of one grid step."""
        return BoundaryBox(
            -self.x_step,
            -self.max_i - self.y_step,
            self.max_j + self.x_step,
            self.y_step,
        )

    def draw(self, output_path: Path, zoom: float = DEFAULT_ZOOM) -> None:
        """Draw grid."""
        configuration: MapConfiguration = MapConfiguration(level="all")

        flinger: Flinger = Flinger(
            self.get_boundary_box(), zoom, self.osm_data.equator_length
        )
        svg: Drawing = Drawing(output_path.name, flinger.size)
        constructor: Constructor = Constructor(
            self.osm_data, flinger, SCHEME, SHAPE_EXTRACTOR, configuration
        )
        constructor.construct()
        map_: Map = Map(flinger, svg, SCHEME, configuration)
        map_.draw(constructor)

        with output_path.open("w") as output_file:
            svg.write(output_file)
            logging.info(f"Map is drawn to {output_path}.")


def draw_overlapped_ways(types: list[dict[str, str]], path: Path) -> None:
    """
    Draw two sets of ways intersecting each other to show how they overlapping.
    """
    grid: Grid = Grid(0.00012, 0.00012)

    for index, tags in enumerate(types):
        node_1: OSMNode = grid.add_node({}, index + 1, 0)
        node_2: OSMNode = grid.add_node({}, index + 1, len(types) + 1)
        grid.add_way(tags, [node_1, node_2])

    for index, tags in enumerate(types):
        node_1: OSMNode = grid.add_node({}, 0, index + 1)
        node_2: OSMNode = grid.add_node({}, len(types) + 1, index + 1)
        grid.add_way(tags, [node_1, node_2])

    grid.draw(path)


def draw_road_features(
    types: list[dict[str, str]], features: list[dict[str, str]], path: Path
) -> None:
    """Draw test image with different road features."""
    grid: Grid = Grid()

    for i, type_ in enumerate(types):
        previous: Optional[OSMNode] = None

        for j in range(len(features) + 1):
            node: OSMNode = grid.add_node({}, i, j)

            if previous:
                tags: dict[str, str] = dict(type_)
                tags |= dict(features[j - 1])
                grid.add_way(tags, [previous, node])
            previous = node

    grid.draw(path)


if __name__ == "__main__":
    logging.basicConfig(format="%(levelname)s %(message)s", level=logging.INFO)

    out_path: Path = Path("out")

    highway_tags: list[dict[str, str]] = [
        {"highway": value} for value in HIGHWAY_VALUES
    ]
    aeroway_tags: list[dict[str, str]] = [
        {"aeroway": value} for value in AEROWAY_VALUES
    ]

    draw_road_features(
        highway_tags, ROAD_LANES_AND_FEATURES, out_path / "lanes.svg"
    )
    draw_road_features(
        highway_tags + RAILWAY_TAGS + aeroway_tags,
        ROAD_WIDTHS_AND_FEATURES,
        out_path / "width.svg",
    )
    draw_road_features(
        highway_tags,
        PLACEMENT_FEATURES_1 + [{"highway": "none"}] + PLACEMENT_FEATURES_2,
        out_path / "placement.svg",
    )
    draw_overlapped_ways(highway_tags, out_path / "overlap.svg")