import axios, { AxiosRequestConfig, AxiosInstance } from 'axios';

export interface ApiClientConfig {
    gatewayUrl: string,
    apiKey: string,
    opstracksKey: string,
    timeout?: number
}

const axiosConfig = (config: ApiClientConfig): AxiosRequestConfig => ({
    baseURL: config.gatewayUrl,
    timeout: config.timeout || 0,
    responseType: 'json',
    headers: {
        'Accept': 'application/json',
        'Content-Type': 'application/json',
        'x-api-key': config.apiKey,
        'x-opstracks-key': config.opstracksKey,
    }
});


/**
 * Base api client wrapper that provides an axios client for api calls.
 * Call init() user credentials and api key.
 * Does not work with two factor authenication
 */
class ApiClient {
    client: AxiosInstance;

    constructor() {
        this.client = axios.create()
    }

    /**
     * Initialize the api client
     * @param crendentials object { username, password }
     * @param apiKey string
     */
    init(config: ApiClientConfig) {
        this.client = axios.create(axiosConfig(config));
    }
}

export const apiClient = new ApiClient();