@nestjs/core/middleware/routes-mapper.js

Nest - modern, fast, powerful node.js web framework (@core)

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.RoutesMapper = void 0;
const constants_1 = require("@nestjs/common/constants");
const shared_utils_1 = require("@nestjs/common/utils/shared.utils");
const metadata_scanner_1 = require("../metadata-scanner");
const router_explorer_1 = require("../router/router-explorer");
const router_module_1 = require("../router/router-module");
class RoutesMapper {
    constructor(container) {
        this.container = container;
        this.routerExplorer = new router_explorer_1.RouterExplorer(new metadata_scanner_1.MetadataScanner(), container);
    }
    mapRouteToRouteInfo(route) {
        if ((0, shared_utils_1.isString)(route)) {
            const defaultRequestMethod = -1;
            return [
                {
                    path: (0, shared_utils_1.addLeadingSlash)(route),
                    method: defaultRequestMethod,
                },
            ];
        }
        const routePathOrPaths = this.getRoutePath(route);
        if (this.isRouteInfo(routePathOrPaths, route)) {
            return [
                {
                    path: (0, shared_utils_1.addLeadingSlash)(route.path),
                    method: route.method,
                },
            ];
        }
        const controllerPaths = this.routerExplorer.scanForPaths(Object.create(route), route.prototype);
        const moduleRef = this.getHostModuleOfController(route);
        const modulePath = this.getModulePath(moduleRef === null || moduleRef === void 0 ? void 0 : moduleRef.metatype);
        const concatPaths = (acc, currentValue) => acc.concat(currentValue);
        return []
            .concat(routePathOrPaths)
            .map(routePath => controllerPaths
            .map(item => {
            var _a;
            return (_a = item.path) === null || _a === void 0 ? void 0 : _a.map(p => {
                let path = modulePath !== null && modulePath !== void 0 ? modulePath : '';
                path += this.normalizeGlobalPath(routePath) + (0, shared_utils_1.addLeadingSlash)(p);
                return {
                    path,
                    method: item.requestMethod,
                };
            });
        })
            .reduce(concatPaths, []))
            .reduce(concatPaths, []);
    }
    isRouteInfo(path, objectOrClass) {
        return (0, shared_utils_1.isUndefined)(path);
    }
    normalizeGlobalPath(path) {
        const prefix = (0, shared_utils_1.addLeadingSlash)(path);
        return prefix === '/' ? '' : prefix;
    }
    getRoutePath(route) {
        return Reflect.getMetadata(constants_1.PATH_METADATA, route);
    }
    getHostModuleOfController(metatype) {
        if (!metatype) {
            return;
        }
        const modulesContainer = this.container.getModules();
        const moduleRefsSet = router_module_1.targetModulesByContainer.get(modulesContainer);
        if (!moduleRefsSet) {
            return;
        }
        const modules = Array.from(modulesContainer.values()).filter(moduleRef => moduleRefsSet.has(moduleRef));
        return modules.find(({ routes }) => routes.has(metatype));
    }
    getModulePath(metatype) {
        if (!metatype) {
            return;
        }
        const modulesContainer = this.container.getModules();
        const modulePath = Reflect.getMetadata(constants_1.MODULE_PATH + modulesContainer.applicationId, metatype);
        return modulePath !== null && modulePath !== void 0 ? modulePath : Reflect.getMetadata(constants_1.MODULE_PATH, metatype);
    }
}
exports.RoutesMapper = RoutesMapper;