import * as gracely from "gracely"
import { Connection } from "@payfunc/model-base"
import { Functions as ModelFunctions } from "../Functions"

export class Functions {
	constructor(readonly connection: Connection) {}
	async create(request: ModelFunctions): Promise<ModelFunctions | gracely.Error> {
		return await this.connection.post<ModelFunctions | gracely.Error>("merchant/functions", request)
	}
	async list(): Promise<ModelFunctions | gracely.Error> {
		return this.connection.get<ModelFunctions | gracely.Error>("merchant/functions")
	}
	async change(request: ModelFunctions): Promise<ModelFunctions | gracely.Error> {
		return await this.connection.put<ModelFunctions | gracely.Error>("merchant/functions", request)
	}

	static open(url: string, token: string): Functions
	static open(url: string | undefined, token: string | undefined): Functions | undefined
	static open(url: string | undefined, token: string | undefined): Functions | undefined {
		const connection = Connection.open(url, token)
		return connection && new Functions(connection)
	}
}