@hiki9/rich-domain/dist/core/common/pagination.js

Rich Domain is a library that provides a set of tools to help you build complex business logic in NodeJS using Domain Driven Design principles.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Pagination = void 0;
class Pagination {
    constructor(criteria, paginationResult) {
        this.result = paginationResult.result;
        this.query = {
            timestamp: Date.now(),
            currentPage: Math.floor(criteria.offset / criteria.limit) + 1,
            totalPages: Math.ceil(paginationResult.total / criteria.limit),
            totalResults: paginationResult.total,
            config: {
                search: criteria.search,
                offset: criteria.offset,
                limit: criteria.limit,
                filter: criteria?.filter,
                businessFilter: criteria?.businessFilter,
                orderBy: criteria?.orderBy,
            },
        };
    }
    toJSON(transformer) {
        if (typeof transformer === 'function') {
            this.result = this.result.map(transformer);
            return this;
        }
        if (!this.result.length) {
            return this;
        }
        const [item] = this.result;
        if (typeof item !== 'object') {
            return this;
        }
        if (typeof item?.toJSON !== 'function') {
            throw new Error('toJSON method is not implemented in the pagination item. Please provide a transformer function in pagination.toJSON() method. Example pagination.toJSON((item) => item.toJSON())');
        }
        this.result = this.result.map((item) => item.toJSON());
        return this;
    }
}
exports.Pagination = Pagination;
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