import {InputElement} from "./InputElement";
import {Store, Stores, UIEventSource} from "../../Logic/UIEventSource";
import Combine from "../Base/Combine";
import Slider from "./Slider";
import {ClickableToggle} from "./Toggle";
import {FixedUiElement} from "../Base/FixedUiElement";
import {VariableUiElement} from "../Base/VariableUIElement";
import BaseUIElement from "../BaseUIElement";

export default class FloorLevelInputElement extends VariableUiElement implements InputElement<string> {

    private readonly _value: UIEventSource<string>;

    constructor(currentLevels: Store<Record<string, number>>, options?: {
        value?: UIEventSource<string>
    }) {


        const value = options?.value ?? new UIEventSource<string>("0")
        super(currentLevels.map(levels => {
                const allLevels = Object.keys(levels)
                allLevels.sort((a, b) => {
                    const an = Number(a)
                    const bn = Number(b)
                    if (isNaN(an) || isNaN(bn)) {
                        return a < b ? -1 : 1;
                    }
                    return an - bn;
                })
                return FloorLevelInputElement.constructPicker(allLevels, value)
            }
        ))
    

        this._value = value

    }

    private static constructPicker(levels: string[], value: UIEventSource<string>): BaseUIElement {
        let slider = new Slider(0, levels.length - 1, {vertical: true});
        const toggleClass = "flex border-2 border-blue-500 w-10 h-10 place-content-center items-center border-box"
        slider.SetClass("flex elevator w-10").SetStyle(`height: ${2.5 * levels.length}rem; background: #00000000`)

        const values = levels.map((data, i) => new ClickableToggle(
            new FixedUiElement(data).SetClass("font-bold active bg-subtle " + toggleClass),
            new FixedUiElement(data).SetClass("normal-background " + toggleClass),
            slider.GetValue().sync(
                (sliderVal) => {
                    return sliderVal === i
                },
                [],
                (isSelected) => {
                    return isSelected ? i : slider.GetValue().data
                }
            ))
            .ToggleOnClick()
            .SetClass("flex w-10 h-10"))

        values.reverse(/* This is a new list, no side-effects */)
        const combine = new Combine([new Combine(values), slider])
        combine.SetClass("flex flex-row overflow-hidden");


        slider.GetValue().addCallbackD(i => {
            if (levels === undefined) {
                return
            }
            if(levels[i] == undefined){
                return
            }
            value.setData(levels[i]);
        })
        value.addCallbackAndRunD(level => {
            const i = levels.findIndex(l => l === level)
            slider.GetValue().setData(i)
        })
        return combine
    }

    GetValue(): UIEventSource<string> {
        return this._value;
    }

    IsValid(t: string): boolean {
        return false;
    }


}