bb-inspired/dist/utils/pagination.js

Core library for BB-inspired NestJS backend

"use strict";
var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
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var __metadata = (this && this.__metadata) || function (k, v) {
    if (typeof Reflect === "object" && typeof Reflect.metadata === "function") return Reflect.metadata(k, v);
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.PaginatedResponse = exports.PaginationParams = void 0;
const class_transformer_1 = require("class-transformer");
const class_validator_1 = require("class-validator");
class PaginationParams {
    constructor() {
        this.page = 1;
        this.limit = 10;
        this.sortDirection = 'asc';
    }
    get offset() {
        return (this.page - 1) * this.limit;
    }
}
exports.PaginationParams = PaginationParams;
__decorate([
    (0, class_validator_1.IsOptional)(),
    (0, class_validator_1.IsInt)(),
    (0, class_validator_1.Min)(1),
    (0, class_transformer_1.Transform)(({ value }) => parseInt(value, 10)),
    __metadata("design:type", Number)
], PaginationParams.prototype, "page", void 0);
__decorate([
    (0, class_validator_1.IsOptional)(),
    (0, class_validator_1.IsInt)(),
    (0, class_validator_1.Min)(1),
    (0, class_validator_1.Max)(100),
    (0, class_transformer_1.Transform)(({ value }) => parseInt(value, 10)),
    __metadata("design:type", Number)
], PaginationParams.prototype, "limit", void 0);
__decorate([
    (0, class_validator_1.IsOptional)(),
    __metadata("design:type", String)
], PaginationParams.prototype, "sortBy", void 0);
__decorate([
    (0, class_validator_1.IsOptional)(),
    __metadata("design:type", String)
], PaginationParams.prototype, "sortDirection", void 0);
class PaginatedResponse {
    constructor(items, total, paginationParams) {
        this.items = items;
        const { page, limit } = paginationParams;
        const totalPages = Math.ceil(total / limit);
        this.meta = {
            page,
            limit,
            total,
            totalPages,
            hasNextPage: page < totalPages,
            hasPreviousPage: page > 1
        };
    }
    static create(items, total, paginationParams, itemType) {
        return new PaginatedResponse(items, total, paginationParams);
    }
}
exports.PaginatedResponse = PaginatedResponse;
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