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(function () {
    'use strict';

    const urlCache = new Map();

    function getSize(element) {
        const className = typeof element.className === 'string'
            ? element.className
            : '';

        const match = className.match(/model_size_(\d+)/);

        return match ? parseInt(match[1], 10) : 500;
    }

    function getFileUrl(fileName) {
        if (urlCache.has(fileName)) {
            return urlCache.get(fileName);
        }

        const apiUrl =
            mw.config.get('wgScriptPath') +
            '/api.php?action=query' +
            '&titles=File:' + encodeURIComponent(fileName) +
            '&prop=imageinfo' +
            '&iiprop=url' +
            '&format=json';

        const promise = fetch(apiUrl)
            .then(function (response) {
                if (!response.ok) {
                    throw new Error('API request failed');
                }

                return response.json();
            })
            .then(function (data) {
                const pages = data.query && data.query.pages;

                if (!pages) {
                    return null;
                }

                const page = Object.values(pages)[0];

                if (!page || !page.imageinfo || !page.imageinfo[0]) {
                    return null;
                }

                return page.imageinfo[0].url;
            })
            .catch(function () {
                return null;
            });

        urlCache.set(fileName, promise);

        return promise;
    }

    function loadModel(preview) {
        if (preview.dataset.loaded) {
            return;
        }

        preview.dataset.loaded = '1';

        const fileName = preview.dataset.model;

        if (!fileName) {
            return;
        }

        const displayName = preview.dataset.name || fileName;
        const size = getSize(preview);

        getFileUrl(fileName + '.glb')
            .then(function (url) {
                if (!url || !preview.isConnected) {
                    return;
                }

                const wrap = document.createElement('div');
                wrap.className = 'model-viewer-wrap';

                const container = document.createElement('div');
                container.className = 'model-viewer-container';
                container.style.width = size + 'px';
                container.style.height = size + 'px';

                const viewer = document.createElement('model-viewer');

                viewer.src = url;
                viewer.setAttribute('camera-controls', '');
                viewer.setAttribute('touch-action', 'pan-y');

                container.appendChild(viewer);
                wrap.appendChild(container);

                const name = document.createElement('div');
                name.className = 'model-name';
                name.textContent = displayName;

                wrap.appendChild(name);

                preview.replaceWith(wrap);
            });
    }

    function initPreview(preview) {
        if (
            !preview ||
            preview.dataset.initialized
        ) {
            return;
        }

        preview.dataset.initialized = '1';

        const button = document.createElement('button');

        button.className = 'model-load-button';
        button.type = 'button';

        button.addEventListener('click', function () {
            loadModel(preview);
        });

        preview.appendChild(button);
    }

    /**
     * Builds the interactive .model-placeholder markup (preview <img>, hint,
     * name) from the data attributes carried by a no-JS .model-fallback block.
     * The preview image URL is fetched from the wiki API asynchronously.
     */
    function buildPlaceholder(data) {
        const model = data.model;
        const name = data.name || model;
        const altImage = data.altImage || model;

        const sizeMatch = String(data.modelsize || '').match(/(\d+)/);
        const viewerSize = sizeMatch ? parseInt(sizeMatch[1], 10) : 300;

        // `size` is the preview image width (default 240px), like
        // [[File:...|240px]]. Falls back to the viewer/modelsize if unset.
        const previewMatch = String(
            data.size || data.modelsize || ''
        ).match(/(\d+)/);
        const previewSize = previewMatch
            ? parseInt(previewMatch[1], 10)
            : 240;

        const el = document.createElement('div');
        el.className = 'model-placeholder model_size_' + viewerSize + 'px';
        el.dataset.model = model;
        el.dataset.name = name;

        const preview = document.createElement('div');
        preview.className = 'model-preview';

        const img = document.createElement('img');
        img.className = 'model-preview-img';
        img.alt = name;
        img.style.width = previewSize + 'px';
        img.style.height = 'auto';

        preview.appendChild(img);
        el.appendChild(preview);

        const hint = document.createElement('div');
        hint.className = 'model-hint';
        hint.textContent = 'Click to view';
        preview.appendChild(hint);

        const nameEl = document.createElement('div');
        nameEl.className = 'model-name';
        nameEl.textContent = name;
        el.appendChild(nameEl);

        if (altImage) {
            getFileUrl(altImage + '.png').then(function (url) {
                if (url && img.isConnected) {
                    img.src = url;
                }
            });
        }

        return el;
    }

    /**
     * Upgrades a no-JS .model-fallback block into the interactive placeholder,
     * preserving every data attribute the template supplied.
     */
    function hydrateFallback(fallback) {
        if (
            !fallback ||
            fallback.dataset.hydrated ||
            fallback.dataset.model === undefined
        ) {
            return;
        }

        fallback.dataset.hydrated = '1';

        const placeholder = buildPlaceholder({
            model: fallback.dataset.model,
            name: fallback.dataset.name,
            altImage: fallback.dataset.altImage,
            size: fallback.dataset.size,
            modelsize: fallback.dataset.modelsize
        });

        initPreview(placeholder);

        fallback.replaceWith(placeholder);
    }

    function scan(root) {
        if (!root) {
            return;
        }

        if (
            root.nodeType === Node.ELEMENT_NODE &&
            root.matches('.model-placeholder')
        ) {
            initPreview(root);
        }

        if (
            root.nodeType === Node.ELEMENT_NODE &&
            root.matches('.model-fallback')
        ) {
            hydrateFallback(root);
        }

        if (root.querySelectorAll) {
            root
                .querySelectorAll('.model-placeholder')
                .forEach(initPreview);
            root
                .querySelectorAll('.model-fallback')
                .forEach(hydrateFallback);
        }
    }

    function startObserver() {
        if (!document.body) {
            return;
        }

        const observer = new MutationObserver(function (mutations) {
            for (const mutation of mutations) {
                for (const node of mutation.addedNodes) {
                    if (node.nodeType === Node.ELEMENT_NODE) {
                        scan(node);
                    }
                }
            }
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }

    function init() {
        scan(document);
        startObserver();
    }

    mw.hook('wikipage.content').add(function ($content) {
        scan($content[0]);
    });

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', init, {
            once: true
        });
    } else {
        init();
    }

})();



const personal = document.querySelector(".vector-menu-content-list");
if (personal){
	const test2 = document.createElement("li");
	const test3 = document.createElement("li");
	const test4 = document.createElement("li");
	test2.innerHTML = `<a href="/User:Monster_Domosed/common.js">JS</a>`;
	test3.innerHTML = `<a href="/User:Monster_Domosed/common.css">CSS</a>`;
	test4.innerHTML = `<a href="/User:Monster_Domosed/Sandbox">SB</a>`;
	personal.prepend(test2, test3, test4);
}