import React, { createContext, useCallback, useContext, useEffect, useState } from 'react';

import { LayerEnablementState } from './config/map-config';

interface DisplayPreferencesContextState {
    vista: LayerEnablementState;
    vistaSwitch: (e: React.FormEvent<HTMLFormElement>) => void;
    vistaSwitchOnClick: React.MouseEventHandler<HTMLButtonElement>;

    flood: LayerEnablementState;
    floodSwitch: (e: React.FormEvent<HTMLFormElement>) => void;
    floodSwitchOnClick: React.MouseEventHandler<HTMLButtonElement>;

    creative: LayerEnablementState;
    creativeSwitch: (e: React.FormEvent<HTMLFormElement>) => void;
    creativeSwitchOnClick: React.MouseEventHandler<HTMLButtonElement>;

    housing: LayerEnablementState;
    housingSwitch: (e: React.FormEvent<HTMLFormElement>) => void;
    housingSwitchOnClick: React.MouseEventHandler<HTMLButtonElement>;
}

const stub = (): never => {
    throw new Error('DisplayPreferencesProvider not set up');
};

export const DisplayPreferencesContext = createContext<DisplayPreferencesContextState>({
    vista: undefined,
    vistaSwitch: stub,
    vistaSwitchOnClick: undefined,

    flood: undefined,
    floodSwitch: stub,
    floodSwitchOnClick: undefined,

    creative: undefined,
    creativeSwitch: stub,
    creativeSwitchOnClick: undefined,

    housing: undefined,
    housingSwitch: stub,
    housingSwitchOnClick: undefined,

    /*
    conservation: undefined,
    conservationSwitch: stub,
    conservationSwitchOnClick: undefined,

    parcel: undefined,
    parcelSwitch: stub,
    parcelSwitchOnClick: undefined,

    borough: undefined,
    boroughSwitch: stub,
    boroughSwitchOnClick: undefined,
    not needed right now

    historicData
    */
});

const noop = () => {};

export const DisplayPreferencesProvider: React.FC<{}> = ({children}) => {
    const [vista, setVista] = useState<LayerEnablementState>('disabled');
    const [flood, setFlood] = useState<LayerEnablementState>('disabled');
    const [creative, setCreative] = useState<LayerEnablementState>('disabled');
    const [housing, setHousing] = useState<LayerEnablementState>('disabled');

    /*
    const [borough, setBorough] = useState<LayerEnablementState>('enabled');
    const [parcel, setParcel] = useState<LayerEnablementState>('disabled');
    const [conservation, setConservation] = useState<LayerEnablementState>('disabled');
    const [historicData, setHistoricData] = useState<LayerEnablementState>('disabled');
    */


    const vistaSwitch = useCallback(
        (e) => {
            e.preventDefault();
            const newVista = (vista === 'enabled')? 'disabled' : 'enabled';
            setVista(newVista);
        },
        [vista],
    )

    const vistaSwitchOnClick = (e) => {
            e.preventDefault();
            const newVista = (vista === 'enabled')? 'disabled' : 'enabled';
            setVista(newVista);
    }

    const floodSwitch = useCallback(
        (e) => {
            e.preventDefault();
            const newFlood = (flood === 'enabled')? 'disabled' : 'enabled';
            setFlood(newFlood);
        },
        [flood],
    )

    const floodSwitchOnClick = (e) => {
        e.preventDefault();
        const newFlood = (flood === 'enabled')? 'disabled' : 'enabled';
        setFlood(newFlood);
    }

    const housingSwitch = useCallback(
        (e) => {
            e.preventDefault();
            const newHousing = (housing === 'enabled')? 'disabled' : 'enabled';
            setHousing(newHousing);
        },
        [housing],
    )

    const housingSwitchOnClick = (e) => {
        e.preventDefault();
        const newHousing = (housing === 'enabled')? 'disabled' : 'enabled';
        setHousing(newHousing);
    }

    const creativeSwitch = useCallback(
        (e) => {
            e.preventDefault();
            const newCreative = (creative === 'enabled')? 'disabled' : 'enabled';
            setCreative(newCreative);
        },
        [creative],
    )

    const creativeSwitchOnClick = (e) => {
        e.preventDefault();
        const newCreative = (creative === 'enabled')? 'disabled' : 'enabled';
        setCreative(newCreative);
    }

    return (
        <DisplayPreferencesContext.Provider value={{
            vista,
            vistaSwitch,
            vistaSwitchOnClick,
            flood,
            floodSwitch,
            floodSwitchOnClick,
            creative,
            creativeSwitch,
            creativeSwitchOnClick,
            housing,
            housingSwitch,
            housingSwitchOnClick
        }}>
            {children}
        </DisplayPreferencesContext.Provider>
    );
};

export const useDisplayPreferences = (): DisplayPreferencesContextState => {
    return useContext(DisplayPreferencesContext);
};