module.exports = class {
    constructor(listing) {
        this.listingId = listing.idInv;
        this.description = listing.strDesc;
        this.condition = listing.codeNew === 'U' ? 'USED' : 'NEW';
        this.complete = listing.codeComplete;
        this.quantity = listing.n4Qty;
        this.colorDesc = listing.strColor;
        this.colorId = listing.idColor;
        this.minBuy = parseMinBuy(listing.mMinBuy);
        this.sellerUsername = listing.strSellerUsername;
        this.sellerStoreName = listing.strStorename;
        this.instantCheckout = listing.instantCheckout;
        this.legoPartNumber = null;
        this.blPartNumber = null;
        this.calculatedPrice = 0
        this.prices = [
            {
                quantity: 1,
                value: parseDollars(listing.mDisplaySalePrice)
            }
        ]
        if(listing.nTier1Qty) {
            //add bulk pricing tier
            this.prices.push({
                quantity: listing.nTier1Qty,
                value: parseDollars(listing.nTier1DisplayPrice)
            })
        }
        if(listing.nTier2Qty) {
            //add bulk pricing tier
            this.prices.push({
                quantity: listing.nTier2Qty,
                value: parseDollars(listing.nTier2DisplayPrice)
            })
        }
        if(listing.nTier3Qty) {
            //add bulk pricing tier
            this.prices.push({
                quantity: listing.nTier3Qty,
                value: parseDollars(listing.nTier3DisplayPrice)
            })
        }
    }

    getPrice(quantity) {
        for(var i = this.prices.length - 1;i >= 0;i--){
            const price = this.prices[i];

            if(quantity >= price.quantity){
                return price.value * quantity
            }
        }
        return null;
    }
    toString(){
        return `${this.legoPartNumber} (${this.quantity}) -${this.colorId}- @ $${this.getPrice(this.quantity)}`
    }
    
}
const priceRegex = /US \$(?<price>\d+\.\d+)/;
function parseMinBuy(value){
    if(value === 'None') return 0;
    return parseDollars(value);
}
function parseDollars(val) {
    const regexed = priceRegex.exec(val);
    const stringPrice = regexed?.groups?.price;
    if(!stringPrice){
        return 999999999;
    } else {
        return parseFloat(stringPrice) === 0  ? 0.01 : parseFloat(stringPrice);
    }
}