// https://www.mediawiki.org/wiki/Manual:Random_page
import fetch from "node-fetch"

import rp from "request-promise";

import $ from "cheerio";

import fs from "fs";
import path from 'path';
const __dirname = path.resolve();

function getRandomWikiOSMPage() {

    // get all FR tags
    // const url = "https://wiki.openstreetmap.org/w/index.php?title=Special:Categories&offset=FR&limit=500"
    const url = "https://wiki.openstreetmap.org/wiki/Special:AllPages?from=&to=&namespace=202&limit=500"
    // get a random page wich is not a discussion
    // const url = "https://wiki.openstreetmap.org/wiki/Special:Random?namespace=all-discussions%3B1%3B2%3B3%3B5%3B7%3B9%3B11%3B120%3B121%3B122%3B123%3B201%3B203&invert=1&limit=10&days=1&enhanced=1&namespace__202_color=c1&urlversion=2"
    rp(url)
        .then(function (html) {
            //success!
            const wikiUrls = [];
            const filteredHtml = $('.mw-spcontent ul li a', html)
            console.log("filteredHtml.length", filteredHtml.length)
            //     .filter(elem => {
            //     return (elem.attribs.title.indexOf('description for') === -1)
            // })
            for (let i = 0; i < filteredHtml.length; i++) {
                // const contentCurated = filteredHtml[i]
                const contentCurated = filteredHtml[i].attribs.href
                wikiUrls.push(contentCurated);
            }
            console.log(wikiUrls);
            return wikiUrls;
        })
        .catch(function (err) {
            //handle error
            console.error(err)
        });
}

function getRandomElementOfArray(listItems) {
    return listItems[Math.floor(Math.random() * listItems.length)]
}

export default function getElementCartographique() {
    const url = "https://wiki.openstreetmap.org/wiki/FR:%C3%89l%C3%A9ments_cartographiques"
    const titleLink = "#toc a"
    const listElementSelector = "#toc a"
    // prendre un lien dans la table des matières de la page, extraire l'id du lien.
    // prendre une ligne de tableau au hasard correspondant à l'ID de la section
    const titleSelector = ""


    fs.readFile( __dirname + '/assets/documents/elements_carto_osm.html', 'utf8', function (err, html) {
        if (err) {
            return console.log(err);
        }
        // console.log(data);


        //success!
        const wikiUrls = [];
        const listOfLinks = $(titleLink, html)
        console.log("filteredHtml.length", listOfLinks.length)
        const selectedTocLink = getRandomElementOfArray(listOfLinks).attribs.href;
        console.log("selectedTocLink", selectedTocLink)

        const tableRow = getRandomElementOfArray($(`${selectedTocLink}`, html)).parents('.wikitable')
        console.log("tableRow.length", tableRow.length)
        // const tableCells = $('td', tableRow)
        // console.log("tableRow.length", tableRow.length)
        // console.log("tag key value", tableCells[1])
        // console.log("Description", tableCells[3])
        // console.log("icone", tableCells[4])
        // console.log("photo", tableCells[5])

        return tableRow;

    });

}

function getQuery() {
    // var url = "https://wiki.openstreetmap.org/w/api.php";
    var url = "https://fr.wikipedia.org/w/api.php";
    var params = {
        action: "query",
        format: "json",
        list: "random",
        enhanced: "1",
        hiderobot: "1",
        urlversion: "2",
        invert: "1",
        rnnamespace: "all-discussions%3B1%3B2%3B3%3B5%3B7%3B9%3B11%3B120%3B121%3B122%3B123%3B201%3B203", // WIKI et FR:
        lang: "FR",
        rnlimit: "5"
    };

    url = url + "?&origin=*";
    Object.keys(params).forEach(function (key) {
        url += "&" + key + "=" + params[key];
    });

    return fetch(url)
        .then(function (response) {
            return response.json();
        })
        .then(function (response) {
            const randoms = response.query.random;

            for (let ii = 0; ii < randoms.length; ii++) {
                // console.log(randoms[ii].title);
                console.log("randoms[ii]", randoms[ii])
            }
        })
        .catch(function (error) {
            console.log(error);
        });


}