// 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';
import {getRandomElementOfArray, randomIntFromInterval} from "./utils.js";

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)
        });
}

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 = ""


   return 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 listOfTableRows = $('.wikitable', html);
        let keys = Object.keys(listOfTableRows);
        let randNumber = randomIntFromInterval(1, keys.length)
        // let randNumber = 3
        console.log("rand", randNumber)
        const foundLine = $(listOfTableRows[randNumber]).find('tr');

        // console.log("randomTable",foundTable)

        // on regarde les lignes du tableau
        keys = Object.keys(foundLine);
        randNumber = randomIntFromInterval(0, keys.length)

        console.log("lignes de tableau", keys.length)
        console.log("ligne sélectionnée", randNumber)
        let cells = $(foundLine[randNumber]).find('td')

        keys = Object.keys(cells);
        console.log("cellules trouvées", keys.length)

        let result = {
            key: '',
            value: '',
            description: ''
        }
        cells.each((i, element) => {
            console.log("cell element", i, $(element).text().trim())
            if (i === 0) {
                result.key = $(element).text().trim();
            }
            if (i === 1) {
                result.value = $(element).text().trim();
            }
            if (i === 3) {
                result.description = $(element).text().trim();
            }
            // let cell = $(element).find("td");
            // console.log($(cell[0]));
        })

        // const tableRow =  foundTable[randNumber] // get one of all tables but the TOC
        // console.log("keys", keys)
        // console.log("foundTable[0]", foundTable[0].text())
        // console.log("foundTable.attribs", foundTable.attribs)
        // console.log("tableRow", $( 'td' ,foundTable).text())
        // console.log("tableRow",tableRow.data)
        // const tableCells = $('td', tableRow)
        // console.log("tableRow.length", tableCells.length)
        // console.log("tag key value", cells[1].text())
        // console.log("Description", cells[3])
        // // console.log("icone", tableCells[4])
        // console.log("photo", cells[5].find('img')?.attribs.href)

        result.link = `https://wiki.openstreetmap.org/wiki/FR:Tag:${result.key}=${result.value}`
        console.log("result", result)

        // aller chercher le lien
        // image de description:
        let imgSelector = ".description a.image img"
           const message = makePostMessageFromObj(result)
           console.log("message", message)
           
        return result;

    });

}

function makePostMessageFromObj(result) {
    return `
# [Le tag OSM du jour : ${result.key}=${result.value}](${result.link})
> ${result.description.trim()}
#osm #openstreetmap #wiki #rtfw
`
}

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);
        });


}


// run

const res = getElementCartographique()
console.log("res", res)