@onesy/utils/pagination.js

Utils

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const pagination = (value = 1, total = 10, boundary = 1, middle = 1) => {
    const array = [];
    const min = (boundary * 2) + (1 + (middle * 2)) + 2;
    if (!total || total <= min)
        return Array.from({ length: total || 1 }).map((i, id) => id + 1);
    // start
    let value_ = 1;
    let dots = 'start';
    let dotsIndex = 0;
    while (value_ < boundary + 1 && value_ < value - middle)
        array.push(value_++);
    // start dots
    if ((value - middle) - (boundary) > 1) {
        if ((value - middle) - (boundary) === 2)
            array.push(boundary + 1);
        else {
            array.push('...');
            dotsIndex = array.length - 1;
        }
    }
    // middle
    value_ = value - middle < 1 ? 1 : value - middle;
    while (value_ < value + middle + 1 && value_ < total)
        array.push(value_++);
    // end dots
    if ((total - boundary + 1) - (value + middle) > 1) {
        if ((total - boundary + 1) - (value + middle) === 2)
            array.push(value + middle + 1);
        else {
            array.push('...');
            dots = 'end';
            dotsIndex = array.length - 1;
        }
        ;
    }
    // end
    value_ = value + middle + 1 > total ? total : value + middle + 1;
    while (value_ < total + 1) {
        if (value_ >= total - boundary + 1 && value_ < total + 1)
            array.push(value_);
        value_++;
    }
    // Update values up to min value
    if (array.length < min) {
        let toAdd = min - array.length;
        if (dots === 'start') {
            let i = dotsIndex + 1;
            let valueStart = array[dotsIndex + 1] - toAdd - 1;
            while (toAdd > 0) {
                array.splice(i++, 0, ++valueStart);
                toAdd--;
            }
        }
        if (dots === 'end') {
            let i = dotsIndex;
            let valueStart = array[dotsIndex - 1];
            while (toAdd > 0) {
                array.splice(i++, 0, ++valueStart);
                toAdd--;
            }
        }
    }
    return array;
};
exports.default = pagination;