'use strict';

export const data = window.shop_data;
export const itemsUnfoldedList = Array.from(data.columns.backlog.categories.map(groupId => groupId.itemIds).flat());

export const productStyle = (style, snapshot, removeAnim, hovered, selected, cart=false) => {
    const custom = {
        opacity: snapshot.isDragging ? .7 : 1,
        backgroundColor: (hovered || selected) ? '#eae7f7' : 'initial',
    };

    if (!cart && snapshot.draggingOver == null && // hack for backlog
        ((!snapshot.isDragging) // prevent next elements from animation
            || (snapshot.isDragging && snapshot.isDropAnimating))) { // prevent dragged element from weird animation
        style.transform = "none";
    }

    if (!snapshot.isDropAnimating) {
        return { ...style, ...custom};
    }

    if (removeAnim) {
        // cannot be 0, but make it super tiny
        custom.transitionDuration = '0.001s';
    }

    return {
        ...style,
        ...custom,
    };
}

export const cartStyle = (style, snapshot) => {
    const isDraggingOver = snapshot.isDraggingOver;
    return {
        ...style,
        ...{
            backgroundColor: isDraggingOver ? '#f2f2f2' : '#f9f9f9',
            border: isDraggingOver ? '1px dashed #ccc' : '0',
        },
    };
}

export function formatMoney(amount, decimalCount = 2, decimal = ".", thousands = ",") {
    // https://stackoverflow.com/questions/149055/how-can-i-format-numbers-as-currency-string-in-javascript
    // changes: return amount if error in order to avoid empty value
    try {
        decimalCount = Math.abs(decimalCount);
        decimalCount = isNaN(decimalCount) ? 2 : decimalCount;

        const negativeSign = amount < 0 ? "-" : "";

        let i = parseInt(amount = Math.abs(Number(amount) || 0).toFixed(decimalCount)).toString();
        let j = (i.length > 3) ? i.length % 3 : 0;

        return negativeSign + (j ? i.substr(0, j) + thousands : '') + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + thousands) + (decimalCount ? decimal + Math.abs(amount - i).toFixed(decimalCount).slice(2) : "");
    } catch (e) {
        return amount;
    }
}

export const range = (start, end) => {
    const length = end - start;
    return Array.from({ length }, (_, i) => start + i);
}


export const move = (source, destination, droppableSource, droppableDestination) => {
    console.log('==> move', source, destination);
    const sourceClone = Array.from(source);
    const destClone = Array.from(destination);
    const [removed] = sourceClone.splice(droppableSource.index, 1);

    destClone.splice(droppableDestination.index, 0, removed);

    const result = {columns: {}};
    result.columns[droppableSource.droppableId] = sourceClone;
    result.columns[droppableDestination.droppableId] = destClone;

    return result;
};

export const compareArraysWithIds = (a, b) =>
    a.length === b.length &&
    a.every((element, index) => element.id === b[index].id);

export const compareArraysLevelOne = (a, b) =>
    a.length === b.length &&
    a.every((element, index) => element === b[index]);

export function compareObjectsEmptiness(a, b) {
    return (!a && !b) || (!(!a !== !b) && Object.getPrototypeOf(a) === Object.getPrototypeOf(b) &&
        (Object.getPrototypeOf(a) !== Object.getPrototypeOf([]) || !!Object.keys(a).length === !!Object.keys(b).length))
}