// ==UserScript==
// @name         Serienfans/Filmfans Releasegruppen Filter
// @namespace    https://git.ponywave.de/Akamaru/Userscripts
// @version      1.2
// @description  Blende Uploads bestimmter Releasegruppen aus
// @author       Akamaru
// @match        https://serienfans.org/*
// @match        https://serienfreaks.org/*
// @match        https://filmfans.org/*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// @grant        GM_addStyle
// @updateURL    https://git.ponywave.de/Akamaru/Userscripts/raw/branch/master/serienfans-releasegroup-filter.user.js
// @downloadURL  https://git.ponywave.de/Akamaru/Userscripts/raw/branch/master/serienfans-releasegroup-filter.user.js
// @run-at       document-end
// ==/UserScript==

(function() {
    'use strict';

    // CSS für Block-Button und Modal
    GM_addStyle(`
        .block-group-btn {
            display: inline;
            margin-left: 5px;
            background: none;
            border: none;
            cursor: pointer;
            font-size: 14px;
            padding: 0;
            line-height: 1;
            width: auto;
            min-width: 0;
            vertical-align: middle;
        }

        #blacklist-modal {
            display: none;
            position: fixed;
            z-index: 10000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.6);
            animation: fadeIn 0.2s;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        #blacklist-modal-content {
            background-color: #1a1a1a;
            margin: 5% auto;
            padding: 30px;
            border: 1px solid #333;
            border-radius: 8px;
            width: 90%;
            max-width: 600px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.5);
            color: #fff;
        }

        #blacklist-modal h2 {
            margin-top: 0;
            color: #fff;
            font-size: 24px;
            margin-bottom: 20px;
        }

        #blacklist-items {
            max-height: 400px;
            overflow-y: auto;
            margin: 20px 0;
            background: #2a2a2a;
            border-radius: 4px;
            padding: 10px;
        }

        .blacklist-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
            margin: 5px 0;
            background: #333;
            border-radius: 4px;
            transition: background 0.2s;
        }

        .blacklist-item:hover {
            background: #3a3a3a;
        }

        .blacklist-item-name {
            flex-grow: 1;
            font-size: 16px;
        }

        .blacklist-item-remove {
            background: #d32f2f;
            color: white;
            border: none;
            padding: 5px 12px;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            transition: background 0.2s;
        }

        .blacklist-item-remove:hover {
            background: #b71c1c;
        }

        #blacklist-add-container {
            display: flex;
            gap: 10px;
            margin: 20px 0;
        }

        #blacklist-add-input {
            flex-grow: 1;
            padding: 10px;
            border: 1px solid #444;
            border-radius: 4px;
            background: #2a2a2a;
            color: #fff;
            font-size: 14px;
        }

        #blacklist-add-input:focus {
            outline: none;
            border-color: #666;
        }

        #blacklist-add-btn, #blacklist-close-btn {
            padding: 10px 20px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
            font-size: 14px;
            font-weight: 500;
            transition: background 0.2s;
        }

        #blacklist-add-btn {
            background: #4caf50;
            color: white;
        }

        #blacklist-add-btn:hover {
            background: #45a049;
        }

        #blacklist-close-btn {
            background: #666;
            color: white;
            width: 100%;
            margin-top: 10px;
        }

        #blacklist-close-btn:hover {
            background: #777;
        }

        .blacklist-empty {
            text-align: center;
            padding: 30px;
            color: #888;
            font-style: italic;
        }

        #blacklist-menu-btn {
            cursor: pointer;
            transition: opacity 0.2s;
        }

        #blacklist-menu-btn:hover {
            opacity: 0.8;
        }
    `);

    // Standard-Blacklist (kann über das Menü bearbeitet werden)
    const defaultBlacklist = [];

    // Lade die Blacklist aus den gespeicherten Einstellungen
    let blacklist = GM_getValue('releasegroup_blacklist', defaultBlacklist);

    // Funktion zum Ausblenden von Einträgen
    function filterReleases() {
        const entries = document.querySelectorAll('.entry');

        entries.forEach(entry => {
            const releasegroupSpan = entry.querySelector('.audiotag:has(small:contains("Releasegruppe:"))');

            if (releasegroupSpan) {
                const releasegroupText = releasegroupSpan.textContent.trim();
                const releasegroup = releasegroupText.replace('Releasegruppe:', '').trim();

                if (blacklist.some(blocked => blocked.toLowerCase() === releasegroup.toLowerCase())) {
                    // Blende den Entry-Container und das dazugehörige Checkbox aus
                    entry.style.display = 'none';
                    const checkbox = entry.previousElementSibling;
                    if (checkbox && checkbox.classList.contains('show_nfo')) {
                        checkbox.style.display = 'none';
                    }
                }
            }
        });
    }

    // Funktion zum Blocken einer Releasegruppe
    function blockReleasegroup(releasegroup) {
        if (!blacklist.some(blocked => blocked.toLowerCase() === releasegroup.toLowerCase())) {
            blacklist.push(releasegroup);
            GM_setValue('releasegroup_blacklist', blacklist);
            location.reload();
        }
    }

    // Alternative querySelector-Methode (robuster)
    function filterReleasesAlternative() {
        const entries = document.querySelectorAll('.entry');

        entries.forEach(entry => {
            let releasegroup = null;

            // Methode 1: Serienfans/Filmfans - <span class="grouptag">
            const grouptag = entry.querySelector('.grouptag');
            if (grouptag) {
                releasegroup = grouptag.textContent.trim();
            } else {
                // Methode 2: Ältere Struktur - .audiotag mit "Releasegruppe:"
                const audiotags = entry.querySelectorAll('.audiotag');
                audiotags.forEach(tag => {
                    const small = tag.querySelector('small');
                    if (small && small.textContent.includes('Releasegruppe:')) {
                        releasegroup = tag.textContent.replace('Releasegruppe:', '').trim();
                    }
                });
            }

            // Prüfe ob Releasegruppe geblockt werden soll
            if (releasegroup && blacklist.some(blocked => blocked.toLowerCase() === releasegroup.toLowerCase())) {
                entry.style.display = 'none';
                const checkbox = entry.previousElementSibling;
                if (checkbox && checkbox.tagName === 'INPUT') {
                    checkbox.style.display = 'none';
                }
            }

            // Füge Block-Button hinzu, wenn noch nicht vorhanden
            if (releasegroup && !entry.querySelector('.block-group-btn')) {
                const h3 = entry.querySelector('h3');
                if (h3) {
                    const blockBtn = document.createElement('button');
                    blockBtn.textContent = '🚫';
                    blockBtn.className = 'block-group-btn';
                    blockBtn.title = `Releasegruppe "${releasegroup}" blocken`;
                    blockBtn.onclick = (e) => {
                        e.preventDefault();
                        e.stopPropagation();
                        if (confirm(`Releasegruppe "${releasegroup}" zur Blacklist hinzufügen?`)) {
                            blockReleasegroup(releasegroup);
                        }
                    };
                    h3.appendChild(blockBtn);
                }
            }
        });
    }

    // Funktion zum Erstellen des Modal-Fensters
    function createBlacklistModal() {
        const modal = document.createElement('div');
        modal.id = 'blacklist-modal';
        modal.innerHTML = `
            <div id="blacklist-modal-content">
                <h2>🚫 Releasegruppen-Filter</h2>
                <div id="blacklist-add-container">
                    <input type="text" id="blacklist-add-input" placeholder="Releasegruppe hinzufügen (z.B. WvF, 4SF, WAYNE)">
                    <button id="blacklist-add-btn">Hinzufügen</button>
                </div>
                <div id="blacklist-items"></div>
                <button id="blacklist-close-btn">Schließen</button>
            </div>
        `;
        document.body.appendChild(modal);

        // Event Listeners
        modal.addEventListener('click', (e) => {
            if (e.target === modal) {
                closeModal();
            }
        });

        document.getElementById('blacklist-close-btn').addEventListener('click', closeModal);
        document.getElementById('blacklist-add-btn').addEventListener('click', addToBlacklist);
        document.getElementById('blacklist-add-input').addEventListener('keypress', (e) => {
            if (e.key === 'Enter') {
                addToBlacklist();
            }
        });

        updateBlacklistDisplay();
    }

    // Funktion zum Aktualisieren der Blacklist-Anzeige
    function updateBlacklistDisplay() {
        const container = document.getElementById('blacklist-items');
        if (!container) return;

        if (blacklist.length === 0) {
            container.innerHTML = '<div class="blacklist-empty">Keine Releasegruppen geblockt</div>';
            return;
        }

        container.innerHTML = blacklist.map(group => `
            <div class="blacklist-item">
                <span class="blacklist-item-name">${group}</span>
                <button class="blacklist-item-remove" data-group="${group}">Entfernen</button>
            </div>
        `).join('');

        // Event Listeners für Remove-Buttons
        container.querySelectorAll('.blacklist-item-remove').forEach(btn => {
            btn.addEventListener('click', (e) => {
                const group = e.target.getAttribute('data-group');
                removeFromBlacklist(group);
            });
        });
    }

    // Funktion zum Hinzufügen einer Releasegruppe
    function addToBlacklist() {
        const input = document.getElementById('blacklist-add-input');
        const group = input.value.trim();

        if (group === '') return;

        if (blacklist.some(blocked => blocked.toLowerCase() === group.toLowerCase())) {
            alert(`"${group}" ist bereits in der Blacklist!`);
            return;
        }

        blacklist.push(group);
        GM_setValue('releasegroup_blacklist', blacklist);
        input.value = '';
        updateBlacklistDisplay();
        filterReleasesAlternative();
    }

    // Funktion zum Entfernen einer Releasegruppe
    function removeFromBlacklist(group) {
        blacklist = blacklist.filter(item => item !== group);
        GM_setValue('releasegroup_blacklist', blacklist);
        updateBlacklistDisplay();
        location.reload();
    }

    // Funktion zum Öffnen des Modals
    function openModal() {
        const modal = document.getElementById('blacklist-modal');
        if (modal) {
            modal.style.display = 'block';
            updateBlacklistDisplay();
            document.getElementById('blacklist-add-input').focus();
        }
    }

    // Funktion zum Schließen des Modals
    function closeModal() {
        const modal = document.getElementById('blacklist-modal');
        if (modal) {
            modal.style.display = 'none';
        }
    }

    // Funktion zum Hinzufügen des Buttons im Header
    function addHeaderButton() {
        const menu = document.getElementById('menu');
        if (!menu) return;

        const menuBtn = document.createElement('a');
        menuBtn.id = 'blacklist-menu-btn';
        menuBtn.textContent = '🚫 Filter';
        menuBtn.addEventListener('click', (e) => {
            e.preventDefault();
            openModal();
        });

        // Füge Button vor dem Settings-Link ein
        const settingsLink = menu.querySelector('.settings');
        if (settingsLink) {
            menu.insertBefore(menuBtn, settingsLink);
        } else {
            menu.appendChild(menuBtn);
        }
    }

    // Registriere Menübefehl (als Fallback)
    GM_registerMenuCommand('Releasegruppen-Filter bearbeiten', openModal);

    // Initialisierung
    addHeaderButton();
    createBlacklistModal();
    filterReleasesAlternative();

    // Beobachte Änderungen (falls Inhalte dynamisch nachgeladen werden)
    const observer = new MutationObserver(() => {
        filterReleasesAlternative();
    });

    const listContainer = document.getElementById('list');
    if (listContainer) {
        observer.observe(listContainer, { childList: true, subtree: true });
    }
})();