ballot/services/utils.js

import { Constants } from "../common/constants";
import { getMyStxAddress, getStacksAPIPrefix, getUserData, userSession } from "../services/auth";

export async function getRecentBlock() {
    // Get btc domain for logged in user
    const response = await fetch(
        getStacksAPIPrefix() + "/extended/v1/block?limit=1"
    );
    const responseObject = await response.json();

    return responseObject?.results?.[0];
}

export function formStacksExplorerUrl(txId) {
    return (
        "https://explorer.stacks.co/txid/" +
        txId +
        "?chain=" +
        (Constants.STACKS_MAINNET_FLAG ? "mainnet" : "testnet")
    );
}

export function convertToDisplayDateFormat(date) {
    return new Date(date).toLocaleDateString('general', { month: 'short', day: 'numeric', year: 'numeric', hour: 'numeric', hour12: true, minute: 'numeric' })
}

// Fetch and store once
var displayUsername;
export async function getDomainNamesFromBlockchain() {
    if (displayUsername) {
        return displayUsername;
    }

    // If user is not signed in, just return
    if (!userSession.isUserSignedIn()) {
        return;
    }

    // Get btc domain for logged in user
    const response = await fetch(
        getStacksAPIPrefix() + "/v1/addresses/stacks/" + getMyStxAddress()
    );
    const responseObject = await response.json();

    // Testnet code
    if (Constants.STACKS_MAINNET_FLAG == false) {
        displayUsername = getMyStxAddress().substr(-5) + ".btc";
        return displayUsername;
    }

    // Get btc dns
    if (responseObject?.names?.length > 0) {
        const btcDNS = responseObject.names.filter((bns) =>
            bns.endsWith(".btc")
        );

        // Check does BTC dns is available
        if (btcDNS && btcDNS.length > 0) {
            // BTC holder
            displayUsername = btcDNS[0];

        } else {
            // Not a BTC holder
            displayUsername = responseObject.names?.[0];
        }
    } else {
        displayUsername = getUserData().identityAddress;
    }

    return displayUsername;
};

// Social media share
/**
 * Get Twitter post content
 */
export function openTwitterUrl(url, title) {
    if (title && url) {
        let link = "https://twitter.com/intent/tweet?text=" + title + "&url=" + url;
        window.open(link, "_blank");
    }
}

/**
 * Get Facebook post content
 */
export function openFacebookUrl(url, title) {
    if (url) {
        let link = "https://www.facebook.com/sharer.php?u=" + url;
        window.open(link, "_blank");
    }
}

/**
 * Get Linkedin post content
 */
export function openLinkedinUrl(url, title) {
    if (url) {
        let link = "https://www.linkedin.com/sharing/share-offsite/?url=" + url;

        // Adding extra text
        if (title) {
            link = link + "&summary=" + title;
        }

        window.open(link, "_blank");
    }
}

/**
 * Get Whatsapp post content
 */
export function openWhatsappUrl(url, title) {
    if (url) {
        let link = "https://web.whatsapp.com/send?text=" + url;
        window.open(link, "_blank");
    }
}

/**
 * Get Telegram post content
 */
export function openTelegramUrl(url, title) {
    if (url) {
        let link = "https://telegram.me/share/url?url=" + url;
        window.open(link, "_blank");
    }
}

/**
 * Get Facebook post content
 */
export function openRedditUrl(url, title) {
    if (url) {
        let link = "https://www.reddit.com/submit?url=" + url;
        window.open(link, "_blank");
    }
}
// Social media share

export function parseJWTtoken(token) {
    // Validation
    if (!token) {
        return;
    }

    var base64Url = token.split('.')[1];
    var base64 = base64Url.replace(/-/g, '+').replace(/_/g, '/');
    var jsonPayload = decodeURIComponent(atob(base64).split('').map(function (c) {
        return '%' + ('00' + c.charCodeAt(0).toString(16)).slice(-2);
    }).join(''));

    return JSON.parse(jsonPayload);
}

export function isValidUtf8(str) {
    try {
        // Encode the string as URI component and then decode it.
        decodeURIComponent(encodeURIComponent(str));
        return true;
    } catch (e) {
        // If there's a decoding error, the string is not valid UTF-8
        return false;
    }
}

export function isValidAscii(str) {
    return /^[\x20-\x7E]*$/.test(str);
}

export function formatUtcDateTime(dateTimeStr) {
    // Parse the date-time string as a UTC date
    const date = new Date(dateTimeStr);

    // Extract and format the components of the date
    const day = date.getUTCDate();
    const month = date.toLocaleString('en-US', { month: 'short', timeZone: 'UTC' });
    const year = date.getUTCFullYear();
    const hours = date.getUTCHours();
    const minutes = date.getUTCMinutes();

    // Format the time in 12-hour format with AM/PM
    const hourFormatted = hours % 12 || 12; // Convert 0 (midnight) to 12
    const minuteFormatted = minutes < 10 ? '0' + minutes : minutes;
    const amPm = hours < 12 ? 'am' : 'pm';

    // Construct the formatted string
    return `${day} ${month} ${year}, ${hourFormatted}:${minuteFormatted} ${amPm}`;
}

export const calculateDateByBlockHeight = (currentBlockHeight, targetBlockHeight) => {
    if (targetBlockHeight && currentBlockHeight && targetBlockHeight > 0 && currentBlockHeight > 0 &&
        targetBlockHeight > currentBlockHeight) {
        const diff = targetBlockHeight - currentBlockHeight;
        const minutes = diff * 10;

        return new Date(new Date().getTime() + (minutes * 60 * 1000)).toISOString();
    }
}