smartrouter/ts/index.ts

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import * as plugins from './smartrouter.plugins';
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const routeLog = (message) => {
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console.log(`%c[Router]%c ${message}`, 'color: rgb(255, 105, 100);', 'color: inherit');
};
export interface IRouterOptions {
debug?: boolean;
}
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export type THandlerFunction = <T extends object>(routeArg: IRouteInfo) => Promise<any>;
export interface IRouteInfo {
path: string;
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index: number;
params: { [key: string]: string };
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}
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/**
* Router
*/
export class SmartRouter {
public options: IRouterOptions = {
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debug: false,
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};
/**
* the routes we are handling
*/
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public routes: Array<{
matchFunction: plugins.pathToRegExp.MatchFunction;
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handler: THandlerFunction;
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}> = [];
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/**
* Creates an instance of Router.
*/
constructor(optionsArg: IRouterOptions) {
// lets set the router options
this.options = {
...this.options,
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...optionsArg,
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};
// lets subscribe to route changes
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window.addEventListener('popstate', (popStateEventArg) => {
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popStateEventArg.preventDefault();
this._handleRouteState();
});
window.addEventListener('DOMContentLoaded', () => {
this._handleRouteState();
});
}
/**
* Push route state to history stack
*/
public async pushUrl(url: string = '/', state: any = {}) {
if (url !== window.location.pathname) {
window.history.pushState(state, window.document.title, url);
} else {
window.history.replaceState(state, window.document.title, url);
}
await this._handleRouteState();
}
/**
* Attach route with handler
* @param {string|RegExp} routeArg
* @param {function} handlerArg
*/
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public on(routeArg: string, handlerArg: THandlerFunction) {
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this.routes.push({
matchFunction: plugins.pathToRegExp.match(routeArg),
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handler: handlerArg,
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});
}
/**
* Apply routes handler to current route
*/
async _handleRouteState() {
const currentLocation = window.location.pathname;
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const wantedRoutes = this.routes.filter((routeArg) => {
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return !!routeArg.matchFunction(currentLocation);
});
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for (const wantedRoute of wantedRoutes) {
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const routeResult = wantedRoute.matchFunction(currentLocation);
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await wantedRoute.handler(routeResult.valueOf() as IRouteInfo);
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}
}
}