// ==UserScript==
// @name         Facebook Activity Auto Deleter (2025)
// @namespace    https://greasyfork.org/en/users/1454546-shawnfrost13
// @version      3.94
// @description  Automatically deletes Facebook activity log entries, confirms popups, and scrolls to load more. Now with pause/resume button and smarter skip logic!
// @author       shawnfrost13
// @license      MIT
// @match        https://www.facebook.com/*/allactivity*
// @grant        none
// @run-at       document-end
// @note         Starts in paused mode. Make sure the tab is not discarded. Skips items that can't be interacted with.
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';

    let deletionCount = 0;
    let paused = true;
    let currentIndex = 0;
    let skipList = new Set();

    function getRandomDelay(min = 1100, max = 2100) {
        return Math.floor(Math.random() * (max - min + 1)) + min;
    }

    function logStatus(text) {
        let el = document.getElementById('fb-auto-delete-status');
        if (!el) {
            el = document.createElement('div');
            el.id = 'fb-auto-delete-status';
            el.style.position = 'fixed';
            el.style.bottom = '60px';
            el.style.right = '10px';
            el.style.background = '#111';
            el.style.color = 'lime';
            el.style.padding = '10px';
            el.style.borderRadius = '10px';
            el.style.fontFamily = 'monospace';
            el.style.zIndex = '9999';
            document.body.appendChild(el);
        }
        el.textContent = `🧹 ${text}`;
    }

    function createToggleButton() {
        const toggle = document.createElement('button');
        toggle.id = 'fb-delete-toggle';
        toggle.textContent = '▶️ Start';
        toggle.style.position = 'fixed';
        toggle.style.bottom = '100px';
        toggle.style.right = '10px';
        toggle.style.zIndex = '10000';
        toggle.style.padding = '8px 12px';
        toggle.style.fontSize = '14px';
        toggle.style.borderRadius = '10px';
        toggle.style.border = 'none';
        toggle.style.backgroundColor = '#333';
        toggle.style.color = 'white';
        toggle.style.cursor = 'pointer';
        toggle.style.fontFamily = 'monospace';

        toggle.onclick = () => {
            paused = !paused;
            toggle.textContent = paused ? '▶️ Start' : '⏸️ Pause';
            if (!paused) {
                logStatus("Resumed");
                deleteNext();
            } else {
                logStatus("Paused");
            }
        };
        document.body.appendChild(toggle);
    }

    function findMenuButtons() {
        return Array.from(document.querySelectorAll('[role="button"]')).filter(btn => {
            const label = btn.getAttribute('aria-label') || '';
            return (
                btn.offsetParent !== null &&
                (label.toLowerCase().includes("activity options") ||
                 label.toLowerCase().includes("action options"))
            );
        });
    }

    function autoConfirmPopups() {
        const dialogs = Array.from(document.querySelectorAll('[role="dialog"], [role="alertdialog"]'));
        dialogs.forEach(dialog => {
            const deleteBtn = Array.from(dialog.querySelectorAll('div[role="button"], button'))
                .find(btn =>
                    btn.offsetParent !== null &&
                    btn.innerText.trim().toLowerCase() === "delete"
                );
            if (deleteBtn) {
                console.log("✅ Auto-confirming DELETE dialog");
                deleteBtn.click();
                logStatus("Auto-confirmed delete popup");
            }
        });
    }

    function autoScrollAndRetry() {
        console.log("🔄 Scrolling to load more activity...");
        logStatus("Scrolling to load more items...");

        window.scrollTo({
            top: document.body.scrollHeight,
            behavior: 'smooth'
        });

        setTimeout(() => {
            deleteNext();
        }, 2500);
    }

    function deleteNext() {
        if (paused) return;

        autoConfirmPopups();

        const buttons = findMenuButtons();

        if (buttons.length === 0) {
            logStatus('No deletable buttons found. Trying to scroll...');
            autoScrollAndRetry();
            return;
        }

        // Skip problematic or previously skipped ones
        while (currentIndex < buttons.length && skipList.has(currentIndex)) {
            currentIndex++;
        }

        if (currentIndex >= buttons.length) {
            logStatus('Reached end of interactables. Scrolling...');
            currentIndex = 0;
            autoScrollAndRetry();
            return;
        }

        const btn = buttons[currentIndex];
        btn.scrollIntoView({ behavior: 'smooth', block: 'center' });
        btn.click();
        logStatus(`Opened menu for item #${deletionCount + 1}`);
        console.log(`📂 Opened menu for item #${deletionCount + 1}`);

        setTimeout(() => {
            const menuItems = Array.from(document.querySelectorAll('[role="menuitem"]'));
            const deleteOption = menuItems.find(el =>
                el.innerText.includes("Move to Recycle bin") ||
                el.innerText.includes("Delete") ||
                el.innerText.includes("Remove") ||
                el.innerText.includes("Unlike") ||
                el.innerText.includes("Remove reaction") ||
                el.innerText.includes("Remove tag")
            );

            if (deleteOption) {
                deleteOption.click();
                deletionCount++;
                logStatus(`Deleted item #${deletionCount}`);
                console.log(`🗑️ Deleted item #${deletionCount}`);
                currentIndex++;
                setTimeout(deleteNext, getRandomDelay());
            } else {
                console.log("⚠️ No delete option found. Skipping this index.");
                skipList.add(currentIndex);
                currentIndex++;
                setTimeout(deleteNext, getRandomDelay());
            }
        }, 1500);
    }

    setTimeout(() => {
        createToggleButton();
        logStatus("Ready. Click ▶️ to begin.");
        setInterval(autoConfirmPopups, 1000);
    }, 3000);
})();