import { IPlugin } from '../../intf/IPlugin'
import { AxiosInstance } from 'axios'
import { IRequestOptions } from '../../intf/IRequestOptions'
import { ITransformRequest } from '../../intf/ITransformRequest'

/** 提供请求前置转换能力 */
export const transformRequest = (handler: ITransformRequest): IPlugin => {
    return {
        pluginName: 'transform-request',
        handler: (axios: AxiosInstance) => {
            axios.interceptors.request.use(async (req: IRequestOptions) => {
                const transformed: IRequestOptions = (await handler(req)) as IRequestOptions
                if (transformed === undefined) return req
                return transformed
            })
        }
    }
}