pragma Singleton

import QtQuick 2.13
import "../shared/xss.js" as XSS
import "../shared/polyfill.number.toLocaleString.js" as NumberPolyFill

QtObject {
    function isHex(value) {
        return /^(-0x|0x)?[0-9a-fA-F]*$/i.test(value)
    }

    function startsWith0x(value) {
        return value.startsWith('0x')
    }

    function isChatKey(value) {
        return startsWith0x(value) && isHex(value) && value.length === 132
    }

    function isValidETHNamePrefix(value) {
        return !(value.trim() === "" || value.endsWith(".") || value.indexOf("..") > -1)
    }

    function isAddress(value) {
        return startsWith0x(value) && isHex(value) && value.length === 42
    }

    function isPrivateKey(value) {
        return isHex(value) && ((startsWith0x(value) && value.length === 66) ||
                                (!startsWith0x(value) && value.length === 64))
    }

    function isMnemonic(value) {
        if(!value.match(/^([a-z\s]+)$/)){
            return false;
        }
        var len = value.split(/\s|,/).length;
        return  len >= 12 && len <= 24 && len % 3 == 0;
    }

    function compactAddress(addr, numberOfChars) {
        if(addr.length <= 5 + (numberOfChars * 2)){  //   5 represents these chars 0x...
            return addr;
        }
        return addr.substring(0, 2 + numberOfChars) + "..." + addr.substring(addr.length - numberOfChars);
    }

    function linkifyAndXSS(inputText) {
        //URLs starting with http://, https://, or ftp://
        var replacePattern1 = /(\b(https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gim;
        var replacedText = inputText.replace(replacePattern1, "<a href='$1'>$1</a>");

        //URLs starting with "www." (without // before it, or it'd re-link the ones done above).
        var replacePattern2 = /(^|[^\/])(www\.[\S]+(\b|$))/gim;
        replacedText = replacedText.replace(replacePattern2, "$1<a href='http://$2'>$2</a>");

        return XSS.filterXSS(replacedText)
    }

    function filterXSS(inputText) {
        return XSS.filterXSS(inputText)
    }

    function toLocaleString(val, locale, options) {
      return NumberPolyFill.toLocaleString(val, locale, options)
    }

    function isOnlyEmoji(inputText) {
        var emoji_regex = /^(?:[\u2700-\u27bf]|(?:\ud83c[\udde6-\uddff]){2}|[\ud800-\udbff][\udc00-\udfff]|[\u0023-\u0039]\ufe0f?\u20e3|\u3299|\u3297|\u303d|\u3030|\u24c2|\ud83c[\udd70-\udd71]|\ud83c[\udd7e-\udd7f]|\ud83c\udd8e|\ud83c[\udd91-\udd9a]|\ud83c[\udde6-\uddff]|[\ud83c[\ude01-\ude02]|\ud83c\ude1a|\ud83c\ude2f|[\ud83c[\ude32-\ude3a]|[\ud83c[\ude50-\ude51]|\u203c|\u2049|[\u25aa-\u25ab]|\u25b6|\u25c0|[\u25fb-\u25fe]|\u00a9|\u00ae|\u2122|\u2139|\ud83c\udc04|[\u2600-\u26FF]|\u2b05|\u2b06|\u2b07|\u2b1b|\u2b1c|\u2b50|\u2b55|\u231a|\u231b|\u2328|\u23cf|[\u23e9-\u23f3]|[\u23f8-\u23fa]|\ud83c\udccf|\u2934|\u2935|[\u2190-\u21ff]|\s)+$/;
        return emoji_regex.test(inputText);
    }

    function removeStatusEns(userName){
        return userName.endsWith(".stateofus.eth") ? userName.substr(0, userName.length - 14) : userName
    }

    function isValidAddress(inputValue) {
        return inputValue !== "0x" && /^0x[a-fA-F0-9]{40}$/.test(inputValue)
    }

    function isValidEns(inputValue) {
        if (!inputValue) {
            return false
        }
        const isEmail = /(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])/.test(inputValue)
        const isDomain = /(?:(?:(?<thld>[\w\-]*)(?:\.))?(?<sld>[\w\-]*))\.(?<tld>[\w\-]*)/.test(inputValue)
        return isEmail || isDomain || (inputValue.startsWith("@") && inputValue.length > 1)
    }


    /**
     * Removes trailing zeros from a string-representation of a number. Throws
     * if parameter is not a string
     */
    function stripTrailingZeros(strNumber) {
        if (!(typeof strNumber === "string")) {
            try {
                strNumber = strNumber.toString()
            } catch(e) {
                throw "[Utils.stripTrailingZeros] input parameter must be a string"
            }
        }
        return strNumber.replace(/(\.[0-9]*[1-9])0+$|\.0*$/,'$1')
    }

    /**
     * Removes starting zeros from a string-representation of a number. Throws
     * if parameter is not a string
     */
    function stripStartingZeros(strNumber) {
        if (!(typeof strNumber === "string")) {
            try {
                strNumber = strNumber.toString()
            } catch(e) {
                throw "[Utils.stripStartingZeros] input parameter must be a string"
            }
        }
        return strNumber.replace(/^(0*)([0-9\.]+)/, "$2")
    }


    function setColorAlpha(color, alpha) {
        return Qt.hsla(color.hslHue, color.hslSaturation, color.hslLightness, alpha)
    }

    function formatTime(timestamp) {
        let messageDate = new Date(Math.floor(timestamp))
        let minutes = messageDate.getMinutes();
        let hours = messageDate.getHours();
        return (hours < 10 ? "0" + hours : hours) + ":" + (minutes < 10 ? "0" + minutes : minutes)
    }

    function formatDateTime(timestamp, locale) {
        let now = new Date()
        let yesterday = new Date()
        yesterday.setDate(now.getDate()-1)
        let messageDate = new Date(Math.floor(timestamp))
        let lastWeek = new Date()
        lastWeek.setDate(now.getDate()-7)

        let minutes = messageDate.getMinutes();
        let hours = messageDate.getHours();

        if (now.toDateString() === messageDate.toDateString()) {
            return (hours < 10 ? "0" + hours : hours) + ":" + (minutes < 10 ? "0" + minutes : minutes)
        } else if (yesterday.toDateString() === messageDate.toDateString()) {
            return qsTr("Yesterday")
        } else if (lastWeek.getTime() < messageDate.getTime()) {
            let days = [qsTr("Sunday"),
                        qsTr("Monday"),
                        qsTr("Tuesday"),
                        qsTr("Wednesday"),
                        qsTr("Thursday"),
                        qsTr("Friday"),
                        qsTr("Saturday")];
            return days[messageDate.getDay()];
        } else {
            return new Date().toLocaleDateString(Qt.locale(locale))
        }
    }

    function findAssetBySymbol(assets, symbolToFind) {
        for(var i=0; i<assets.rowCount(); i++) {
            const symbol = assets.rowData(i, "symbol")
            if (symbol.toLowerCase() === symbolToFind.toLowerCase()) {
                return {
                    name: assets.rowData(i, "name"),
                    symbol,
                    value: assets.rowData(i, "value"),
                    fiatBalanceDisplay: assets.rowData(i, "fiatBalanceDisplay"),
                    address: assets.rowData(i, "address"),
                    fiatBalance: assets.rowData(i, "fiatBalance")
                }
            }
        }
    }

    function isValidChannelName(channelName) {
        return (/^[a-z0-9\-]+$/.test(channelName))
    }

    function isURL(text) {
        return (/https?:\/\/(www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b([-a-zA-Z0-9()@:%_\+.~#?&//=]*)/.test(text))
    }

    function isSpace(c) {
        return (/( |\t|\n|\r)/.test(c))
    }

    function isPunct(c) {
        return /(!|\@|#|\$|%|\^|&|\*|\(|\)|_|\+|\||-|=|\\|{|}|[|]|"|;|'|<|>|\?|,|\.|\/)/.test(c)
    }

    function getTick(wordCount) {
        return (wordCount === 12 || wordCount === 15 ||
                wordCount === 18 || wordCount === 21 || wordCount === 24)
                ? "✓ " : "";
    }

    function countWords(text) {
        if (text.trim() === "")
            return 0;
        return text.trim().split(" ").length;
    }

    /**
     * Returns text in the format "✓ 12 words" for seed phrases input boxes
     */
    function seedPhraseWordCountText(text) {
        let wordCount = countWords(text);
        return qsTr("%1%2 words").arg(getTick(wordCount)).arg(wordCount.toString());
    }

    function uuid() {
        return Date.now().toString(36) + Math.random().toString(36).substr(2, 5)
    }

    function getNetworkName(network){
        switch(network){
            case Constants.networkMainnet: return qsTr("Mainnet with upstream RPC")
            case Constants.networkPOA: return qsTr("POA Network")
            case Constants.networkXDai: return qsTr("xDai Chain")
            case Constants.networkGoerli: return qsTr("Goerli with upstream RPC")
            case Constants.networkRinkeby: return qsTr("Rinkeby with upstream RPC")
            case Constants.networkRopsten: return qsTr("Ropsten with upstream RPC")
            default: return network
        }
    }

    function validatePasswords(item, firstPasswordField, repeatPasswordField) {
        switch (item) {
            case "first":
                if (firstPasswordField.text === "") {
                    //% "You need to enter a password"
                    return [false, qsTrId("you-need-to-enter-a-password")];
                } else if (firstPasswordField.text.length < 6) {
                    return [false, qsTrId("Password needs to be 6 characters or more")];
                }
                return [true, ""];

            case "repeat":
                if (repeatPasswordField.text === "") {
                    //% "You need to repeat your password"
                    return [false, qsTrId("you-need-to-repeat-your-password")];
                } else if (repeatPasswordField.text !== firstPasswordField.text) {
                    return [false, qsTr("Passwords don't match")];
                }
                return [true, ""];

            default:
                return [false, ""];
        }
    }

    function getHostname(url) {
        const rgx = /\:\/\/(?:[a-zA-Z0-9\-]*\.{1,}){1,}[a-zA-Z0-9]*/i
        const matches = rgx.exec(url)
        if (!matches || !matches.length) return  ""
        return matches[0].substring(3)
    }

    function hasImageExtension(url) {
        return [".png", ".jpg", ".jpeg", ".svg", ".gif"].some(ext => url.includes(ext))
    }
}