const cheerio = require('cheerio');
const webdriver = require('selenium-webdriver');
var entities = require('html-entities').XmlEntities;
const { saveFile } = require('../tools/save-file');

function skuData(driver) {

    return new Promise(async (resolve, reject) => {

        let typeList = await driver.findElements(webdriver.By.js(() => document.querySelectorAll('.tb-sku .tb-prop .J_TSaleProp')))

        let _sizeList = await typeList[0].findElements(webdriver.By.tagName('li:not(.tb-out-of-stock)'));
        const sizeList = await _sizeList.filter(async item => {
            const styleStr = await item.getAttribute('style');
            return styleStr.indexOf('none') !== -1;
        });

        let _colorList = await typeList[1].findElements(webdriver.By.tagName('li:not(.tb-out-of-stock)'));
        const colorList = await _colorList.filter(async function (item) {
            const styleStr = await item.getAttribute('style');
            return styleStr.indexOf('none') != -1;
        });


        let sku = [];
        let sizeIndex = 0;

        async function eachSize(sizeIndex) {
            const size = sizeList[sizeIndex];
            let sizeClass = await size.getAttribute('class');
            if (sizeClass.indexOf('tb-selected') === -1) {
                size.click();
            }
            let colorIndex = 0;

            function eachColor(colorIndex) {
                return new Promise((resolve2, reject2) => {
                    async function eachColor2(colorIndex) {
                        const color = colorList[colorIndex];

                        let colorClass = await color.getAttribute('class');
                        if (colorClass.indexOf('tb-selected') === -1) {
                            color.click();
                        }

                        await driver.sleep(500);

                        console.log(sizeIndex, colorIndex);

                        const htmlStr = await driver.getPageSource();

                        const d = getSkuData(htmlStr);
                        if (d) {
                            sku.push(d);
                        }

                        colorIndex++;

                        console.log('colorIndex', colorIndex, colorList.length);

                        if (colorIndex === colorList.length) {
                            color.click();
                            resolve2();
                        } else {
                            eachColor2(colorIndex);
                        }
                    }
                    eachColor2(colorIndex)
                });
            }

            await driver.sleep(500);
            await eachColor(colorIndex);

            sizeIndex++;

            console.log('color完毕', sizeIndex, sizeList.length);

            if (sizeIndex === sizeList.length) {
                resolve(sku);
            } else {
                eachSize(sizeIndex);
            }

        }

        eachSize(sizeIndex)

    });

}




function getSkuData(htmlStr) {
    const data = {};
    const $ = cheerio.load(htmlStr);
    data.size = $('[data-property="尺码"] .tb-selected span').text() || $('[data-property="尺寸"] .tb-selected span').text();
    if (data.size.indexOf('加入购物车') != -1) {
        data.size = '默认'
    }
    data.color = $('[data-property="颜色分类"] .tb-selected span').text();
    console.log(['写入规格：', 'size:', data.size, 'color:', data.color]);
    data.bigImg = $('#J_ImgBooth').attr('src');
    data.colorImg = $('[data-property="颜色分类"] .tb-selected a').attr('style')
    // console.log([data.colorImg, 'colorImg']);
    data.colorImg = data.colorImg ? data.colorImg.replace(/(.+)\(([^\>)]+)\)(.+)/igm, '$2') : '';

    data.stock = $('#J_EmStock').text();
    // console.log([data.stock, 'stock']);
    data.stock = data.stock ? data.stock.replace(/[^\d]+(\d+)[^\d]+/, '$1') : '';
    return data;
}

exports.skuData = skuData;