"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const is_1 = __importDefault(require("is"));
const immutable_1 = __importDefault(require("immutable"));
const promise_1 = __importDefault(require("../../utils/promise"));
const editHTMLElement_1 = __importDefault(require("./editHTMLElement"));
/**
 Return language for a code blocks from a list of class names

 @param {Array<String>}
 @return {string}
 */
function getLanguageForClass(classNames) {
    return immutable_1.default.List(classNames)
        .map((cl) => {
        // Markdown
        // @ts-expect-error ts-migrate(2339) FIXME: Property 'search' does not exist on type 'unknown'... Remove this comment to see the full error message
        if (cl.search("lang-") === 0) {
            // @ts-expect-error ts-migrate(2339) FIXME: Property 'slice' does not exist on type 'unknown'.
            return cl.slice("lang-".length);
        }
        // Asciidoc
        // @ts-expect-error ts-migrate(2339) FIXME: Property 'search' does not exist on type 'unknown'... Remove this comment to see the full error message
        if (cl.search("language-") === 0) {
            // @ts-expect-error ts-migrate(2339) FIXME: Property 'slice' does not exist on type 'unknown'.
            return cl.slice("language-".length);
        }
        return null;
    })
        .find((cl) => {
        return Boolean(cl);
    });
}
/**
 Highlight all code elements

 @param {Function(lang, body) -> String} highlight
 @param {HTMLDom} $
 @return {Promise}
 */
function highlightCode(highlight, $) {
    return (0, editHTMLElement_1.default)($, "code", ($code) => {
        const classNames = ($code.attr("class") || "").split(" ");
        const lang = getLanguageForClass(classNames);
        const source = $code.text();
        return (0, promise_1.default)(highlight(lang, source)).then((r) => {
            if (is_1.default.string(r.html)) {
                $code.html(r.html);
            }
            else {
                $code.text(r.text);
            }
        });
    });
}
exports.default = highlightCode;