import Topic from './Topic'
import Request from './Request'
import { ValidatorHandleType } from './Validator'

export interface RawThrottleType {
  [path: string]: ValidatorHandleType
}

export type DirectionType = 'In' | 'Out'

export default class Throttle {
    private name: string
    private filterList: Array<{ topic: Topic, validator: ValidatorHandleType }> = []

    public disable: boolean = false
    public filterMap: { [path: string]: ValidatorHandleType } = {}

    constructor(name: string, throttle: RawThrottleType = null) {
        if (throttle === null) {
            this.disable = true
        } else {
            this.filterMap = throttle

            Object.keys(this.filterMap).map(path => {
                this.filterList.push({ topic: new Topic(path), validator: this.filterMap[path] })
            })
        }
    }

    check(request: Request): boolean {
        if (this.disable) return true

        for(let i = 0; i < this.filterList.length; i++) {
            const filter = this.filterList[i]
            if (filter.topic.equal(request.path).isEqual && filter.validator(request.data)) return true
        }

        return false
    }
}