import LayoutConfig from "../../../Models/ThemeConfig/LayoutConfig"
import { ImmutableStore, Store } from "../../UIEventSource"
import { Feature, Point } from "geojson"
import { TagUtils } from "../../Tags/TagUtils"
import BaseUIElement from "../../../UI/BaseUIElement"
import { Utils } from "../../../Utils"
import { OsmTags } from "../../../Models/OsmFeature"
import { FeatureSource } from "../FeatureSource"

/**
 * Highly specialized feature source.
 * Based on a lon/lat UIEVentSource, will generate the corresponding feature with the correct properties
 */
export class LastClickFeatureSource implements FeatureSource {
    public readonly renderings: string[]
    private i: number = 0
    private readonly hasPresets: boolean
    private readonly hasNoteLayer: boolean
    public static readonly newPointElementId = "new_point_dialog"
    public readonly features: Store<Feature[]>
    constructor(
        layout: LayoutConfig,
        clickSource: Store<{ lon: number; lat: number; mode: "left" | "right" | "middle" }>
    ) {
        this.hasNoteLayer = layout.hasNoteLayer()
        this.hasPresets = layout.hasPresets()
        const allPresets: BaseUIElement[] = []
        for (const layer of layout.layers)
            for (let i = 0; i < (layer.presets ?? []).length; i++) {
                const preset = layer.presets[i]
                const tags = new ImmutableStore(TagUtils.KVtoProperties(preset.tags))
                const rendering = layer.mapRendering[0]
                if (!rendering) {
                    console.error("NO rendering for preset", layer.id)
                    continue
                }
                const { html } = rendering.RenderIcon(tags, {
                    noSize: true,
                    includeBadges: false,
                })
                allPresets.push(html)
            }

        this.renderings = Utils.Dedup(
            allPresets.map((uiElem) =>
                Utils.runningFromConsole ? "" : uiElem.ConstructElement().innerHTML
            )
        )

        this.features = clickSource.mapD(({ lon, lat, mode }) => [
            this.createFeature(lon, lat, mode),
        ])
    }

    public createFeature(
        lon: number,
        lat: number,
        mode?: "left" | "right" | "middle"
    ): Feature<Point, OsmTags> {
        const properties: OsmTags = {
            id: LastClickFeatureSource.newPointElementId + "_" + this.i,
            has_note_layer: this.hasNoteLayer ? "yes" : "no",
            has_presets: this.hasPresets ? "yes" : "no",
            renderings: this.renderings.join(""),
            number_of_presets: "" + this.renderings.length,
            first_preset: this.renderings[0],
            mouse_button: mode ?? "none",
        }
        this.i++

        return <Feature<Point, OsmTags>>{
            type: "Feature",
            properties,
            geometry: {
                type: "Point",
                coordinates: [lon, lat],
            },
        }
    }
}