import { Store, UIEventSource } from "../Logic/UIEventSource";
import BaseUIElement from "./BaseUIElement";
import LayoutConfig from "../Models/ThemeConfig/LayoutConfig";
import { IndexedFeatureSource, WritableFeatureSource } from "../Logic/FeatureSource/FeatureSource";
import { OsmConnection } from "../Logic/Osm/OsmConnection";
import { Changes } from "../Logic/Osm/Changes";
import { ExportableMap, MapProperties } from "../Models/MapProperties";
import LayerState from "../Logic/State/LayerState";
import { Feature, Geometry, Point } from "geojson";
import FullNodeDatabaseSource from "../Logic/FeatureSource/TiledFeatureSource/FullNodeDatabaseSource";
import { MangroveIdentity } from "../Logic/Web/MangroveReviews";
import { GeoIndexedStoreForLayer } from "../Logic/FeatureSource/Actors/GeoIndexedStore";
import LayerConfig from "../Models/ThemeConfig/LayerConfig";
import FeatureSwitchState from "../Logic/State/FeatureSwitchState";
import { MenuState } from "../Models/MenuState";
import OsmObjectDownloader from "../Logic/Osm/OsmObjectDownloader";
import { RasterLayerPolygon } from "../Models/RasterLayers";
import { ImageUploadManager } from "../Logic/ImageProviders/ImageUploadManager";

/**
 * The state needed to render a special Visualisation.
 */
export interface SpecialVisualizationState {
  readonly guistate: MenuState;
  readonly layout: LayoutConfig;
  readonly featureSwitches: FeatureSwitchState;

  readonly layerState: LayerState;
  readonly featureProperties: { getStore(id: string): UIEventSource<Record<string, string>> };

  readonly indexedFeatures: IndexedFeatureSource;

  /**
   * Some features will create a new element that should be displayed.
   * These can be injected by appending them to this featuresource (and pinging it)
   */
  readonly newFeatures: WritableFeatureSource;

  readonly historicalUserLocations: WritableFeatureSource<Feature<Point>>;

  readonly osmConnection: OsmConnection;
  readonly featureSwitchUserbadge: Store<boolean>;
  readonly featureSwitchIsTesting: Store<boolean>;
  readonly changes: Changes;
  readonly osmObjectDownloader: OsmObjectDownloader;
  /**
   * State of the main map
   */
  readonly mapProperties: MapProperties & ExportableMap;

  readonly selectedElement: UIEventSource<Feature>;
  /**
   * Works together with 'selectedElement' to indicate what properties should be displayed
   */
  readonly selectedLayer: UIEventSource<LayerConfig>;
  readonly selectedElementAndLayer: Store<{ feature: Feature; layer: LayerConfig }>;

  /**
   * If data is currently being fetched from external sources
   */
  readonly dataIsLoading: Store<boolean>;
  /**
   * Only needed for 'ReplaceGeometryAction'
   */
  readonly fullNodeDatabase?: FullNodeDatabaseSource;

  readonly perLayer: ReadonlyMap<string, GeoIndexedStoreForLayer>;
  readonly userRelatedState: {
    readonly imageLicense: UIEventSource<string>;
    readonly showTags: UIEventSource<"no" | undefined | "always" | "yes" | "full">
    readonly mangroveIdentity: MangroveIdentity
    readonly showAllQuestionsAtOnce: UIEventSource<boolean>
    readonly preferencesAsTags: Store<Record<string, string>>
    readonly language: UIEventSource<string>
  };
  readonly lastClickObject: WritableFeatureSource;

  readonly availableLayers: Store<RasterLayerPolygon[]>;

  readonly imageUploadManager: ImageUploadManager;
}

export interface SpecialVisualization {
  readonly funcName: string;
  readonly docs: string | BaseUIElement;
  readonly example?: string;

  /**
   * Indicates that this special visualisation will make requests to the 'alLNodesDatabase' and that it thus should be included
   */
  readonly needsNodeDatabase?: boolean;
  readonly args: {
    name: string
    defaultValue?: string
    doc: string
    required?: false | boolean
  }[];
  readonly getLayerDependencies?: (argument: string[]) => string[];

  structuredExamples?(): { feature: Feature<Geometry, Record<string, string>>; args: string[] }[];

  constr(
    state: SpecialVisualizationState,
    tagSource: UIEventSource<Record<string, string>>,
    argument: string[],
    feature: Feature,
    layer: LayerConfig
  ): BaseUIElement;
}

export type RenderingSpecification =
  | string
  | {
  func: SpecialVisualization
  args: string[]
  style: string
}