import {SpecialVisualization, SpecialVisualizationState} from "../../SpecialVisualization";
import {UIEventSource} from "../../../Logic/UIEventSource";
import {Feature, Geometry, LineString, Polygon} from "geojson";
import LayerConfig from "../../../Models/ThemeConfig/LayerConfig";
import BaseUIElement from "../../BaseUIElement";
import {ImportFlowArguments, ImportFlowUtils} from "./ImportFlow";
import Translations from "../../i18n/Translations";
import {Utils} from "../../../Utils";
import SvelteUIElement from "../../Base/SvelteUIElement";
import WayImportFlow from "./WayImportFlow.svelte";
import ConflateImportFlowState from "./ConflateImportFlowState";
import {AutoAction} from "../AutoApplyButton";
import {IndexedFeatureSource} from "../../../Logic/FeatureSource/FeatureSource";
import {Changes} from "../../../Logic/Osm/Changes";
import LayoutConfig from "../../../Models/ThemeConfig/LayoutConfig";
import {OsmConnection} from "../../../Logic/Osm/OsmConnection";

export interface ConflateFlowArguments extends ImportFlowArguments {
    way_to_conflate: string
    point_move_mode?: "move_osm" | undefined;
    max_snap_distance?: string
    snap_onto_layers?: string,
}

export default class ConflateImportButtonViz implements SpecialVisualization, AutoAction {
    supportsAutoAction: boolean = true;
    public readonly funcName: string = "conflate_button";
    public readonly args: { name: string; defaultValue?: string; doc: string; required?: boolean }[] = [
        ...ImportFlowUtils.generalArguments,
        {
            name: "way_to_conflate",
            doc: "The key, of which the corresponding value is the id of the OSM-way that must be conflated; typically a calculatedTag",
        },


    ];
    readonly docs: string = "This button will modify the geometry of an existing OSM way to match the specified geometry. This can conflate OSM-ways with LineStrings and Polygons (only simple polygons with one single ring). An attempt is made to move points with special values to a decent new location (e.g. entrances)" + ImportFlowUtils.documentationGeneral
    public readonly needsNodeDatabase = true


    async applyActionOn(feature: Feature<Geometry, { [name: string]: any; }>, state: {
        osmConnection: OsmConnection,
        layout: LayoutConfig;
        changes: Changes;
        indexedFeatures: IndexedFeatureSource;
    }, tagSource: UIEventSource<any>, argument: string[]): Promise<void> {

        {
            // Small safety check to prevent duplicate imports
            const id = tagSource.data.id
            if (ImportFlowUtils.importedIds.has(id)) {
                return
            }
            ImportFlowUtils.importedIds.add(id)
        }

        if (feature.geometry.type !== "LineString" && feature.geometry.type !== "Polygon") {
            return
        }

        const args: ConflateFlowArguments = <any>Utils.ParseVisArgs(this.args, argument)
        const tagsToApply = ImportFlowUtils.getTagsToApply(tagSource, args)
        const idOfWayToReplaceGeometry = tagSource.data[args.way_to_conflate]
        const action = ConflateImportFlowState.createAction(<Feature<LineString | Polygon>>feature, args, state, idOfWayToReplaceGeometry, tagsToApply)
        tagSource.data["_imported"] = "yes"
        tagSource.ping()
        await state.changes.applyAction(action)
    }

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

        const canBeImported = feature.geometry.type === "LineString" ||
            (feature.geometry.type === "Polygon" && feature.geometry.coordinates.length === 1)
        if (!canBeImported) {
            return Translations.t.general.add.import.wrongTypeToConflate.SetClass("alert")
        }
        const args: ConflateFlowArguments = <any>Utils.ParseVisArgs(this.args, argument)
        const tagsToApply = ImportFlowUtils.getTagsToApply(tagSource, args)
        const idOfWayToReplaceGeometry = tagSource.data[args.way_to_conflate]
        const importFlow = new ConflateImportFlowState(state, <Feature<LineString | Polygon>>feature, args, tagsToApply, tagSource, idOfWayToReplaceGeometry)
        return new SvelteUIElement(WayImportFlow, {
            importFlow
        })
    }

    getLayerDependencies(args: string[]) {
        return ImportFlowUtils.getLayerDependenciesWithSnapOnto(this.args, args)
    }
}