// ==UserScript==
// @name         Poe扩大聊天框，自动设置输入框焦点
// @name:en      Poe Enlarge chat box And auto set focus to input box.
// @name:zh-CN   Poe扩大聊天框，自动设置输入框焦点
// @namespace    http://tampermonkey.net/
// @version      0.7.0
// @description:en  Features: 1. Enlarge chat box. 2. Auto set focus to input box. Note: Due to poe.com's constant updates, features may become invalid. The author will follow up with updates.
// @description:zh-CN  功能：1. 扩大聊天框。2. 自动设置输入框焦点。说明：由于poe.com在不断的更新，功能可能会失效。作者会跟进更新。
// @author       Cursor & Mason
// @match        *://poe.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=poe.com
// @grant        none
// @license      MIT
// @description 1. Enlarges the chat box. 2. Automatically moves the focus to the chat input box when the user types. 3. Sets the chatInput as the focus when the page is focused.
// @downloadURL none
// ==/UserScript==

(function () {
    'use strict';

    function removeMessageBubbleMaxWidth() {
        console.log("removeMessageBubbleMaxWidth!")
        // Find all div elements with class starting with Message_botMessageBubble
        const messageBubbles = document.querySelectorAll('div[class^="Message_botMessageBubble"]');
        // Loop through each message bubble and remove the max-width property
        messageBubbles.forEach(messageBubble => {
            messageBubble.style.setProperty('max-width', 'unset', 'important');
        });

        const humanMessageBubbles = document.querySelectorAll('div[class^="Message_humanMessageBubble"]');
        // Loop through each message bubble and remove the max-width property
        humanMessageBubbles.forEach(messageBubble => {
            messageBubble.style.setProperty('max-width', 'unset', 'important');
        });
    }

    /** Function 1: Enlarges the chat box */
    function enlargeChatBox() {
        console.log("enlargeChatBox!")
        // Get all sections with class has prefix 'PageWithSidebarLayout_mainSection'
        const sections = document.querySelectorAll('[class^="PageWithSidebarLayout_mainSection"]');
        // Loop through each section and remove the width and max-width properties
        sections.forEach(section => {
            // make it important to prevent modify
            section.style.setProperty('width', 'unset', 'important');
            section.style.setProperty('max-width', 'unset', 'important');
            section.style.setProperty('min-width', '684px', 'important');
        });

        // 移除消息气泡的最大宽度
        removeMessageBubbleMaxWidth();

        const chatMessagesViews = document.querySelectorAll('div[class^="ChatMessagesView_emptyView"]');
        // Loop through each message bubble and remove the max-width property
        chatMessagesViews.forEach(messageView => {
            messageView.style.setProperty('max-width', 'unset', 'important');
        });
    }

    // Call the function whenever needed
    enlargeChatBox();


    /** Function 2: Automatically moves the focus to the chat input box when the user types or click button. (Has Problem with Chinese Input) */
    function setChatInputFocus() {
        function checkCredits() {
            // Find the div element with class starting with ChatMessageSendButton_noFreeMessageTooltip
            const chatMessageSendButton = document.querySelector('div[class^="ChatMessageSendButton_noFreeMessageTooltip"]');
            // If the chatMessageSendButton's innerHTML contains '0', return directly
            if (chatMessageSendButton && chatMessageSendButton.innerHTML.includes('0')) {
                console.log("no credits left...")
                return true;
            }

            return false;
        }

        // Find the textarea element with class starting with ChatMessageInputView_textInput
        const chatInput = document.querySelector('textarea[class^="GrowingTextArea_textArea"]');
        console.log(chatInput); // print chatInput for debug

        // Add an event listener to the document that listens for user input
        document.addEventListener('keypress', event => {
            if (checkCredits()) {
                return;
            }
            // If the target of the input event is the chatInput element and it does not have focus, set focus to it
            if (!chatInput.matches(':focus')) {
                chatInput.focus();
            }
        });

        // Add an event listener to the document that listens for a click event on button elements
        document.addEventListener('click', event => {
            if (checkCredits()) {
                return;
            }
            // If the clicked element is a button and the chatInput does not have focus, set focus to it
            if (event.target.tagName === 'BUTTON' && !chatInput.matches(':focus')) {
                chatInput.focus();
            }
        });


        /** Function 2.1: Sets the chatInput as the focus when the page is focused. */

        // Set the chatInput as the focus when the page is loaded
        window.addEventListener('focus', () => {
            if (checkCredits()) {
                return;
            }
            chatInput.focus();
        });
    }

    setChatInputFocus();

    /** Function 1.1: 处理切换页面的时候，重新设定大小 */
    const observer = new MutationObserver(function (mutations) {
        mutations.forEach(function (mutation) {
            if (mutation.type === 'attributes' && mutation.attributeName === 'href') {
                enlargeChatBox();
            }
        });
    });
    observer.observe(document.body, { attributes: true, subtree: true, attributeFilter: ['href'] });

    /** Function 1.2: 处理气泡的大小问题 */
    const bubbleObserver = new MutationObserver(function (mutations) {
        mutations.forEach(function (mutation) {
            if (mutation.type === 'childList' && mutation.addedNodes.length > 0 && Array.from(mutation.target.classList).some(className => className.startsWith('ChatMessagesView_messagePair'))) {
                // console.log(mutation)
                removeMessageBubbleMaxWidth();
            }
        });
    });
    bubbleObserver.observe(document.body, { childList: true, subtree: true });

})();