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/* eslint-disable @typescript-eslint/ban-ts-comment */import type { Router, Result } from '../../router.ts'import { UnsupportedPathError, MESSAGE_MATCHER_IS_ALREADY_BUILT } from '../../router.ts'
export class SmartRouter<T> implements Router<T> {  name: string = 'SmartRouter'  routers: Router<T>[] = []  routes?: [string, string, T][] = []
  constructor(init: Pick<SmartRouter<T>, 'routers'>) {    Object.assign(this, init)  }
  add(method: string, path: string, handler: T) {    if (!this.routes) {      throw new Error(MESSAGE_MATCHER_IS_ALREADY_BUILT)    }
    this.routes.push([method, path, handler])  }
  match(method: string, path: string): Result<T> {    if (!this.routes) {      throw new Error('Fatal error')    }
    const { routers, routes } = this    const len = routers.length    let i = 0    let res    for (; i < len; i++) {      const router = routers[i]      try {        routes.forEach((args) => {          router.add(...args)        })        res = router.match(method, path)      } catch (e) {        if (e instanceof UnsupportedPathError) {          continue        }        throw e      }
      this.match = router.match.bind(router)      this.routers = [router]      this.routes = undefined      break    }
    if (i === len) {      // not found      throw new Error('Fatal error')    }
    // e.g. "SmartRouter + RegExpRouter"    this.name = `SmartRouter + ${this.activeRouter.name}`
    return res as Result<T>  }
  get activeRouter() {    if (this.routes || this.routers.length !== 1) {      throw new Error('No active router has been determined yet.')    }
    return this.routers[0]  }}