import { sub, format, fromUnixTime } from 'date-fns';
interface APIResponse<T> {
    success?: boolean
    payload?: T
    error?: string

}

const api_host = process.env.API_HOST;

export const fromUnixTimeSafe = (value: string = ""): Date => {
    const n = Number(value);
    if (!n || isNaN(n)) {
        return null;
    }

    return fromUnixTime(n);
};

export const createSearchDate = (start: Date = new Date(), hours: number = 0): Date => {
    const d = sub(start, { hours });
    d.setSeconds(0);
    return d;
}
export const buildQueryParams = (qps = null) => qps == null ? "" : `?${Object.keys(qps).filter(key => !!qps[key] && (qps[key] !== "undefined")).map(key => `${key}=${qps[key]}`).join('&')}`
export const API_HOST = (url = "", queryParams) => `${api_host}/api/v1/${url}${buildQueryParams(queryParams)}`;

export const apiCall = async function <T>(url: string, method: string = 'GET',  queryParams = null): Promise<APIResponse<T>> {
    try {
        const data = await fetch(API_HOST(url, queryParams), {
            headers: { "Accept": "application/json" },
            method,
        });

        const { success, payload } = await data.json();

        if (success) {
            return { payload };
        }

        return { error: payload };

    } catch (error) {
        console.trace(`API CALL FAILED - ${url}: ${error}`);
        return { error };
    }
}


export const SearchDateFormatStr = "yyyy-MM-dd HH:mm:ss";
export const formatDateForSearch = date => format(date, SearchDateFormatStr);