lib/src/cli/directive/RouteDirective.ts

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import {Directive, OptionDefinition} from '../Directive'
import {Inject, Injectable} from '../../di'
import {Routing} from '../../service/Routing'
import Table = require('cli-table')
import {RouteHandler} from '../../http/routing/Route'
@Injectable()
export class RouteDirective extends Directive {
@Inject()
protected readonly routing!: Routing
getDescription(): string {
return 'Get information about a specific route'
}
getKeywords(): string | string[] {
return ['route']
}
getOptions(): OptionDefinition[] {
return [
'{route} | the path of the route',
'--method -m {value} | the HTTP method of the route',
]
}
async handle(): Promise<void> {
const method: string | undefined = this.option('method')
?.toLowerCase()
?.trim()
const route: string = this.option('route')
.toLowerCase()
.trim()
this.routing.getCompiled()
.filter(match => match.getRoute().trim() === route && (!method || match.getMethod() === method))
.tap(matches => {
if ( !matches.length ) {
this.error('No matching routes found. (Use `./ex routes` to list)')
process.exitCode = 1
}
})
.each(match => {
const pre = match.getMiddlewares()
.where('stage', '=', 'pre')
.map<[string, string]>(ware => [ware.stage, this.handlerToString(ware.handler)])
const post = match.getMiddlewares()
.where('stage', '=', 'post')
.map<[string, string]>(ware => [ware.stage, this.handlerToString(ware.handler)])
const maxLen = match.getMiddlewares().max(ware => this.handlerToString(ware.handler).length)
const table = new Table({
head: ['Stage', 'Handler'],
colWidths: [10, Math.max(maxLen, match.getDisplayableHandler().length) + 2],
})
table.push(...pre.toArray())
table.push(['handler', match.getDisplayableHandler()])
table.push(...post.toArray())
this.info(`\nRoute: ${match}\n\n${table}`)
})
}
protected handlerToString(handler: RouteHandler): string {
return typeof handler === 'string' ? handler : '(anonymous function)'
}
}