import type { VectorSourceSpecification, StyleSpecification } from "maplibre-gl";
import { MAP_BACKGROUND_COLORS } from "./map-colors";

export const WATER_NETWORK_GLOBAL_VIEW = {
  bbox3857: [
    13551482,
    3612812.75,
    13577696,
    3632065.75
  ]
} as const;

export const SOURCE_LAYERS = {
  conduits: "geo_conduits_mat",
  junctions: "geo_junctions_mat",
  orifices: "geo_orifices_mat",
  outfalls: "geo_outfalls_mat",
  pumps: "geo_pumps_mat"
} as const;

export const WATER_NETWORK_SOURCE_IDS = [
  "conduits",
  "junctions",
  "orifices",
  "outfalls",
  "pumps"
] as const;

export type WaterNetworkSourceId = (typeof WATER_NETWORK_SOURCE_IDS)[number];

const GEOSERVER_WMTS_ROOT = "https://geoserver.waternetwork.cn/geoserver/gwc/service/wmts/rest";

export function createWaterNetworkSources() {
  return {
    conduits: createLingangVectorSource(
      SOURCE_LAYERS.conduits,
      "line",
      [121.7350340307058, 30.84636502815, 121.97051839928491, 30.994737681416165]
    ),
    junctions: createLingangVectorSource(
      SOURCE_LAYERS.junctions,
      "point",
      [121.7350340307058, 30.84636502815, 121.97051839928491, 30.994737681416165]
    ),
    orifices: createLingangVectorSource(
      SOURCE_LAYERS.orifices,
      "line",
      [121.88611269518903, 30.919491577239235, 121.9347115520599, 30.952564332104696]
    ),
    outfalls: createLingangVectorSource(
      SOURCE_LAYERS.outfalls,
      "point",
      [121.77154156385242, 30.85723317314842, 121.77231411499677, 30.859452151585806]
    ),
    pumps: createLingangVectorSource(
      SOURCE_LAYERS.pumps,
      "line",
      [121.73585149761436, 30.861759757577705, 121.9498481645973, 30.983213202338085]
    )
  };
}

function createLingangVectorSource(
  sourceLayer: (typeof SOURCE_LAYERS)[keyof typeof SOURCE_LAYERS],
  style: "line" | "point",
  bounds: [number, number, number, number]
): VectorSourceSpecification {
  return {
    type: "vector",
    tiles: [
      `${GEOSERVER_WMTS_ROOT}/lingang:${sourceLayer}/${style}/WebMercatorQuad/{z}/{y}/{x}?format=application/vnd.mapbox-vector-tile`
    ],
    bounds,
    minzoom: 0,
    maxzoom: 24
  };
}

export function createBaseStyle(mapboxToken?: string): StyleSpecification {
  const sources: StyleSpecification["sources"] = {};
  const layers: StyleSpecification["layers"] = [
    {
      id: "background",
      type: "background",
      paint: {
        "background-color": MAP_BACKGROUND_COLORS.primary
      }
    }
  ];

  if (mapboxToken) {
    sources["mapbox-light"] = {
      type: "raster",
      tiles: [
        `https://api.mapbox.com/styles/v1/mapbox/light-v11/tiles/512/{z}/{x}/{y}@2x?access_token=${mapboxToken}`
      ],
      tileSize: 512,
      attribution:
        '© <a href="https://www.mapbox.com/about/maps/">Mapbox</a> © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
    };
    sources["mapbox-satellite"] = {
      type: "raster",
      tiles: [
        `https://api.mapbox.com/styles/v1/mapbox/satellite-streets-v12/tiles/512/{z}/{x}/{y}@2x?access_token=${mapboxToken}`
      ],
      tileSize: 512,
      attribution:
        '© <a href="https://www.mapbox.com/about/maps/">Mapbox</a> © <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>'
    };

    layers.push({
      id: "mapbox-light",
      type: "raster",
      source: "mapbox-light",
      paint: {
        "raster-opacity": 0.82,
        "raster-saturation": -0.22,
        "raster-contrast": 0.04
      }
    });
    layers.push({
      id: "mapbox-satellite",
      type: "raster",
      source: "mapbox-satellite",
      layout: {
        visibility: "none"
      },
      paint: {
        "raster-opacity": 0.86,
        "raster-saturation": -0.16,
        "raster-contrast": 0.02
      }
    });
  }

  return {
    version: 8,
    glyphs: "https://demotiles.maplibre.org/font/{fontstack}/{range}.pbf",
    sources,
    layers
  };
}