"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
const dom = __importStar(require("./dom"));
const SELECTOR_LIST = "ol, ul";
const SELECTOR_LINK = "> a, p > a";
const SELECTOR_PART = "h2, h3, h4";
/**
 Find a list

 @param {cheerio.Node}
 @return {cheerio.Node}
 */
function findList($parent) {
    const $container = $parent.children(".olist");
    if ($container.length > 0)
        $parent = $container.first();
    return $parent.children(SELECTOR_LIST);
}
/**
 Parse a ul list and return list of chapters recursvely

 @param {cheerio.Node}
 @param {cheerio.DOM}
 @return {Array}
 */
function parseList($ul, $) {
    const articles = [];
    $ul.children("li").each(function () {
        const article = {};
        const $li = $(this);
        // Get text for the entry
        const $p = $li.children("p");
        article.title = ($p.text() || dom.textNode($li.get(0))).trim();
        // Parse link
        const $a = $li.find(SELECTOR_LINK);
        if ($a.length > 0) {
            article.title = $a.first().text();
            article.ref = $a.attr("href").replace(/\\/g, "/").replace(/^\/+/, "");
        }
        // Sub articles
        const $sub = findList($li);
        article.articles = parseList($sub, $);
        if (!article.title)
            return;
        articles.push(article);
    });
    return articles;
}
/**
 Find all parts and their corresponding lists

 @param {cheerio.Node}
 @param {cheerio.DOM}
 @return {Array<{title: String, list: cheerio.Node}>}
 */
function findParts($parent, $) {
    // Find parts and lists
    // TODO asciidoc compatibility
    const partsAndLists = $parent.children(`${SELECTOR_LIST}, ${SELECTOR_PART}`);
    // Group each part with the list after
    const parts = [];
    let previousPart = null;
    partsAndLists.each((i, el) => {
        if (isPartNode(el)) {
            if (previousPart !== null) {
                // The previous part was empty
                parts.push(previousPart);
            }
            previousPart = {
                title: getPartTitle(el, $),
                list: null
            };
        }
        else {
            // It is a list
            if (previousPart !== null) {
                previousPart.list = el;
            }
            else {
                previousPart = {
                    title: "",
                    list: el
                };
            }
            parts.push(previousPart);
            previousPart = null;
        }
    });
    // Last part might be empty
    if (previousPart !== null) {
        parts.push(previousPart);
    }
    return parts;
}
/**
 True if the element is a part

 @param el
 @return {boolean}
 */
function isPartNode(el) {
    return SELECTOR_PART.indexOf(el.name) !== -1;
}
/**
 Parse the title of a part element

 @param el
 @param {cheerio.DOM} $
 @return {string}
 */
function getPartTitle(el, $) {
    return $(el).text().trim();
}
/**
 Parse an HTML content into a tree of articles/parts

 @param {string} html
 @return {Object}
 */
function parseSummary(html) {
    const $ = dom.parse(html);
    const $root = dom.cleanup(dom.root($), $);
    const parts = findParts($root, $);
    // Parse each list
    const parsedParts = [];
    let part;
    for (let i = 0; i < parts.length; ++i) {
        part = parts[i];
        parsedParts.push({
            title: part.title,
            articles: parseList($(part.list), $)
        });
    }
    return {
        parts: parsedParts
    };
}
exports.default = parseSummary;