ihm_client/src/pages/chat/chat.ts

declare global {
    interface Window {
        toggleUserList: () => void;
        switchUser: (userId: string | number) => void;
        loadMemberChat: (memberId: string | number) => void;
    }
}

import { groupsMock } from '../../mocks/mock-signature/groupsMock';
import { messagesMock as initialMessagesMock, messagesMock } from '../../mocks/mock-signature/messagesMock';
import { membersMock } from '../../mocks/mock-signature/membersMocks';
import { 
    Message, 
    DocumentSignature, 
        } from '../../models/signature.models';
import { messageStore } from '../../utils/messageMock';
import { Member } from '../../interface/memberInterface';
import { Group } from '../../interface/groupInterface';
import { getCorrectDOM } from '../../utils/document.utils';
import chatStyle from '../../../public/style/chat.css?inline';


let currentUser: Member = membersMock[0]; 

interface LocalNotification {
    memberId: string;
    text: string;
    time: string;
}

export function initChat() {
    const chatElement = document.createElement('chat-element');
    const container = document.querySelector('.container');
    if (container) {
        container.appendChild(chatElement);
    }
}

class ChatElement extends HTMLElement {
    static get observedAttributes() {
        return ['process-id'];
    }

    private processId: string | null = null;
    private selectedMemberId: string | null = null;
    private messagesMock: any[] = [];
    private dom: Node;
    private notifications: LocalNotification[] = [];
    private notificationBadge = document.querySelector('.notification-badge');
    private notificationBoard = document.getElementById('notification-board');
    private notificationBell = document.getElementById('notification-bell');
    private selectedSignatories: DocumentSignature[] = [];
    private allMembers = membersMock.map(member => ({
        id: member.id,
        name: member.name,
        roleName: 'Default Role' 
    }));

    
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
        this.messagesMock = messageStore.getMessages();
        this.dom = getCorrectDOM('signature-element');

        // Récupérer le processId depuis l'attribut du composant
        this.processId = this.getAttribute('process-id');
        console.log('🔍 Constructor - Process ID from element:', this.processId);

        this.shadowRoot!.innerHTML = `

        <style>
            ${chatStyle}
        </style>
            <div class="container">
                <!-- List of groups -->
                <div class="group-list">
                    <ul id="group-list">
                    </ul>
                </div>

                <!-- Chat area -->
                <div class="chat-area">
                    <div class="chat-header" id="chat-header">
                        <!-- Chat title -->
                    </div>
                    <div class="messages" id="messages">
                        <!-- Messages -->
                    </div>

                    <!-- Input area -->
                    <div class="input-area">
                        <label for="file-input" class="attachment-icon">
                            <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24">
                                <path d="M13.514 2.444l-10.815 10.785c-.449.449-.678 1.074-.625 1.707l.393 4.696c.041.479.422.86.9.9l4.697.394c.633.053 1.258-.177 1.707-.626l11.875-11.844c.196-.196.195-.512 0-.707l-3.536-3.536c-.195-.195-.511-.196-.707 0l-8.878 8.848c-.162.162-.253.382-.253.611v.725c0 .184.148.332.332.332h.725c.229 0 .448-.092.61-.254l7.11-7.08 1.415 1.415-7.386 7.354c-.375.375-.885.586-1.414.586h-2.414c-.555 0-1-.448-1-1v-2.414c0-.53.211-1.039.586-1.414l9.506-9.477c.781-.781 2.049-.781 2.829-.001l4.243 4.243c.391.391.586.902.586 1.414 0 .512-.196 1.025-.587 1.416l-12.35 12.319c-.748.747-1.76 1.164-2.81 1.164-.257 0-6.243-.467-6.499-.487-.664-.052-1.212-.574-1.268-1.267-.019-.242-.486-6.246-.486-6.499 0-1.05.416-2.062 1.164-2.811l10.936-10.936 1.414 1.444z"/>
                            </svg>
                        </label>
                        <input type="file" id="file-input" style="display: none;" />
                        <textarea id="message-input" rows="3" placeholder="Type your message..."></textarea>
                        <button id="send-button">Send</button>
                    </div>
                </div>
            </div>
        `;

        window.toggleUserList = this.toggleUserList.bind(this);
        window.switchUser = this.switchUser.bind(this);
        window.loadMemberChat = this.loadMemberChat.bind(this);

        // Initialiser les événements de notification
        document.addEventListener('click', (event: Event): void => {
            if (this.notificationBoard && this.notificationBoard.style.display === 'block' &&
                !this.notificationBoard.contains(event.target as Node) &&
                this.notificationBell && !this.notificationBell.contains(event.target as Node)) {
                this.notificationBoard.style.display = 'none';
            }
        });
        this.initMessageEvents();
        this.initFileUpload();

        document.addEventListener('newMessagingProcess', ((event: CustomEvent) => {
            console.log('🎯 Received newMessagingProcess event:', event.detail);
            this.addNewMessagingProcess(event.detail.processId, event.detail.processName);
        }) as EventListener);
    }

    attributeChangedCallback(name: string, oldValue: string, newValue: string) {
        console.log(`🔄 Attribute ${name} changed from ${oldValue} to ${newValue}`);
        if (name === 'process-id' && newValue) {
            console.log('🔍 Loading chat with new process ID:', newValue);
            this.loadGroupList(newValue);
        }
    }

    private initMessageEvents() {
        // Pour le bouton Send
        const sendButton = this.shadowRoot?.querySelector('#send-button');
        if (sendButton) {
            sendButton.addEventListener('click', () => this.sendMessage());
        }

        // Pour la touche Entrée
        const messageInput = this.shadowRoot?.querySelector('#message-input');
        if (messageInput) {
            messageInput.addEventListener('keypress', (event: Event) => {
                const keyEvent = event as KeyboardEvent;  // Cast en KeyboardEvent
                if (keyEvent.key === 'Enter' && !keyEvent.shiftKey) {
                    event.preventDefault();
                    this.sendMessage();
                }
            });
        }
    }

    private initFileUpload() {
        const fileInput = this.shadowRoot?.querySelector('#file-input') as HTMLInputElement;
        if (fileInput) {
            fileInput.addEventListener('change', (event: Event) => {
                const target = event.target as HTMLInputElement;
                if (target.files && target.files.length > 0) {
                    this.sendFile(target.files[0]);
                }
            });
        }
    }

     ///////////////////// Notification module /////////////////////
        // Delete a notification
    private removeNotification(index: number) {
            this.notifications?.splice(index, 1);  // Ajout de ?.
            this.renderNotifications();
            this.updateNotificationBadge();
        }
        // Show notifications
    private renderNotifications() {
            if (!this.notificationBoard) return;
    
            // Reset the interface
            this.notificationBoard.innerHTML = '';
    
            // Displays "No notifications available" if there are no notifications
            if (this.notifications.length === 0) {
                this.notificationBoard.innerHTML = '<div class="no-notification">No notifications available</div>';
                return;
            }
    
            // Add each notification to the list
            this.notifications.forEach((notif, index) => {
                const notifElement = document.createElement('div');
                notifElement.className = 'notification-item';
                notifElement.textContent = `${notif.text} at ${notif.time}`;
                notifElement.onclick = () => {
                    this.loadMemberChat(notif.memberId);
                    this.removeNotification(index);
                };
                this.notificationBoard?.appendChild(notifElement);
            });
        }
    private updateNotificationBadge() {
            if (!this.notificationBadge) return;
            const count = this.notifications.length;
            this.notificationBadge.textContent = count > 99 ? '+99' : count.toString();
            (this.notificationBadge as HTMLElement).style.display = count > 0 ? 'block' : 'none';
        }
    

    // Add notification
    private addNotification(memberId: string, message: Message) {
        // Creating a new notification
        const notification = {
            memberId,
            text: `New message from Member ${memberId}: ${message.text}`,
            time: message.time
        };

        // Added notification to list and interface
        this.notifications.push(notification);
        this.renderNotifications();
        this.updateNotificationBadge();
    }

// Send a messsage
    private sendMessage() {
    const messageInput = this.shadowRoot?.querySelector('#message-input') as HTMLInputElement;
    if (!messageInput) return;
    const messageText = messageInput.value.trim();

    if (messageText === '' || this.selectedMemberId === null) {
        return;
    }

    const newMessage: Message = {
        id: Date.now(),
        sender: "4NK",
        text: messageText,
        time: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }),
        type: 'text' as const
    };
    // Add and display the message immediately
    messageStore.addMessage(this.selectedMemberId, newMessage);
    this.messagesMock = messageStore.getMessages();
    this.loadMemberChat(this.selectedMemberId);

    // Reset the input
    messageInput.value = '';

    // Automatic response after 2 seconds
    setTimeout(() => {
        if (this.selectedMemberId) {
            const autoReply = this.generateAutoReply(`Member ${this.selectedMemberId}`);
            messageStore.addMessage(this.selectedMemberId, autoReply);
            this.messagesMock = messageStore.getMessages();
            this.loadMemberChat(this.selectedMemberId);
            this.addNotification(this.selectedMemberId, autoReply);
        }
        }, 2000);
    }

        // Scroll down the conversation after loading messages
        private scrollToBottom(container: Element) {
            (container as HTMLElement).scrollTop = (container as HTMLElement).scrollHeight;
        }
    
    
        // Load the list of members
        private loadMemberChat(memberId: string | number) {
            this.selectedMemberId = String(memberId);
            const memberMessages = this.messagesMock.find(m => String(m.memberId) === String(memberId));
    
            // Find the process and the role of the member
            let memberInfo = { processName: '', roleName: '', memberName: '' };
            groupsMock.forEach(process => {
                process.roles.forEach(role => {
                    const member = role.members.find(m => String(m.id) === String(memberId));
                    if (member) {
                        memberInfo = {
                            processName: process.name,
                            roleName: role.name,
                            memberName: member.name
                        };
                    }
                });
            });
    
            const chatHeader = this.shadowRoot?.querySelector('#chat-header');
            const messagesContainer = this.shadowRoot?.querySelector('#messages');
    
            if (!chatHeader || !messagesContainer) return;
            
            chatHeader.textContent = `Chat with ${memberInfo.roleName} ${memberInfo.memberName} from ${memberInfo.processName}`;
            messagesContainer.innerHTML = '';
    
            if (memberMessages) {
                memberMessages.messages.forEach((message: Message) => {
                    const messageElement = document.createElement('div');
                    messageElement.className = 'message-container';
    
                    const messageContent = document.createElement('div');
                    messageContent.className = 'message';
                    if (message.type === 'file') {
                        messageContent.innerHTML = `<a href="${message.fileData}" download="${message.fileName}" target="_blank">${message.fileName}</a>`;
                        messageContent.classList.add('user');
                    } else {
                        messageContent.innerHTML = `<strong>${message.sender}</strong>: ${message.text} <span style="float: right;">${message.time}</span>`;
                        if (message.sender === "4NK") {
                            messageContent.classList.add('user');
                        }
                    }
    
                    messageElement.appendChild(messageContent);
                    messagesContainer.appendChild(messageElement);
                });
            }
    
    
            this.scrollToBottom(messagesContainer);
        }

    private toggleMembers(role: { members: { id: string | number; name: string; }[] }, roleElement: HTMLElement) {
        let memberList = roleElement.querySelector('.member-list');
        if (memberList) {
            (memberList as HTMLElement).style.display = (memberList as HTMLElement).style.display === 'none' ? 'block' : 'none';
            return;
        }
    
        memberList = document.createElement('ul');
        memberList.className = 'member-list';
    
        role.members.forEach(member => {
            const memberItem = document.createElement('li');
            memberItem.textContent = member.name;
    
            memberItem.onclick = (event) => {
                event.stopPropagation();
                this.loadMemberChat(member.id.toString());
            };
    
            memberList.appendChild(memberItem);
        });
    
        roleElement.appendChild(memberList);
    }
    

    // Toggle the list of Roles
    private toggleRoles(group: Group, groupElement: HTMLElement) {
        console.log('=== toggleRoles START ===');
        console.log('Group:', group.name);
        console.log('Group roles:', group.roles); // Afficher tous les rôles disponibles
        
        let roleList = groupElement.querySelector('.role-list');
        console.log('Existing roleList:', roleList);

        if (roleList) {
            const roleItems = roleList.querySelectorAll('.role-item');
            roleItems.forEach(roleItem => {
                console.log('Processing roleItem:', roleItem.innerHTML); // Voir le contenu HTML complet

                let container = roleItem.querySelector('.role-item-container');
                if (!container) {
                    container = document.createElement('div');
                    container.className = 'role-item-container';
                    
                    // Créer un span pour le nom du rôle
                    const nameSpan = document.createElement('span');
                    nameSpan.className = 'role-name';
                    nameSpan.textContent = roleItem.textContent?.trim() || '';
                    
                    container.appendChild(nameSpan);
                    roleItem.textContent = '';
                    roleItem.appendChild(container);
                }

                // Récupérer le nom du rôle
                const roleName = roleItem.textContent?.trim();
                console.log('Role name from textContent:', roleName);
                
                // Alternative pour obtenir le nom du rôle
                const roleNameAlt = container.querySelector('.role-name')?.textContent;
                console.log('Role name from span:', roleNameAlt);

                if (!container.querySelector('.folder-icon')) {
                    const folderButton = document.createElement('span');
                    folderButton.className = 'folder-icon';
                    
                    folderButton.addEventListener('click', (event) => {
                        event.stopPropagation();
                        console.log('Clicked role name:', roleName);
                        console.log('Available roles:', group.roles.map(r => r.name));
                        
                        const role = group.roles.find(r => r.name === roleName);
                        if (role) {
                            console.log('Found role:', role);
                        } else {
                            console.error('Role not found. Name:', roleName);
                            console.error('Available roles:', group.roles);
                        }
                    });

                    container.appendChild(folderButton);
                }
            });

            (roleList as HTMLElement).style.display = 
                (roleList as HTMLElement).style.display === 'none' ? 'block' : 'none';
        }
    }


    private loadGroupList(processId: string): void {
        console.log('🔍 Loading group list with processId:', processId);
        const groupList = this.shadowRoot?.querySelector('#group-list');
        if (!groupList) {
            console.error('❌ Group list element not found');
            return;
        }

        // Vider la liste existante
        groupList.innerHTML = '';

        // Créer l'élément pour le processus de messaging
        const li = document.createElement('li');
        li.className = 'group-list-item';
        li.setAttribute('data-process-id', processId);
        
        const container = document.createElement('div');
        container.className = 'group-item-container';
        
        const nameSpan = document.createElement('span');
        nameSpan.textContent = `Messaging Process ${processId}`;
        nameSpan.className = 'process-name';
        
        container.appendChild(nameSpan);
        li.appendChild(container);
        groupList.appendChild(li);
        
        console.log('✅ Group list item added for process:', processId);
    }


    // Function to manage the list of users
    private toggleUserList() {
        const userList = getCorrectDOM('userList');
        if (!userList) return;
        
        if (!(userList as HTMLElement).classList.contains('show')) {
            (userList as HTMLElement).innerHTML = membersMock.map(member => `
                <div class="user-list-item" onclick="switchUser('${member.id}')">
                    <span class="user-avatar">${member.avatar}</span>
                    <div>
                        <span class="user-name">${member.name}</span>
                        <span class="user-email">${member.email}</span>
                    </div>
                </div>
            `).join('');
        }
        (userList as HTMLElement).classList.toggle('show');
    }

    private switchUser(userId: string | number) {
        const user = membersMock.find(member => member.id === userId);
        if (!user) return;
        currentUser = user;
        this.updateCurrentUserDisplay();
        const userList = getCorrectDOM('userList') as HTMLElement;
        userList?.classList.remove('show');
    }

    // Function to update the display of the current user
    private updateCurrentUserDisplay() {
        const userDisplay = getCorrectDOM('current-user') as HTMLElement;
        if (userDisplay) {     
            userDisplay.innerHTML = `
                <div class="current-user-info">
                    <span class="user-avatar">${currentUser.avatar}</span>
                    <span class="user-name">${currentUser.name}</span>
                </div>
            `;
        }
    }
    // Generate an automatic response
    private generateAutoReply(senderName: string): Message {
        return {
            id: Date.now(),
            sender: senderName,
            text: "OK...",
            time: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }),
            type: 'text' as const
        };
    }

    // Send a file
    private sendFile(file: File) {
        console.log('SendFile called with file:', file);
        const reader = new FileReader();
        reader.onloadend = () => {
            const fileData = reader.result;
            const fileName = file.name;
            console.log('File loaded:', fileName);

            if (this.selectedMemberId) {
                messageStore.addMessage(this.selectedMemberId, {
                    id: Date.now(),
                    sender: "4NK",
                    fileName: fileName,
                    fileData: fileData,
                    time: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }),
                    type: 'file'
                });
                console.log('Message added to store');
                
                this.messagesMock = messageStore.getMessages();
                this.loadMemberChat(this.selectedMemberId);
            }
        };
        reader.readAsDataURL(file);
    }

    private initializeEventListeners() {
        document.addEventListener('DOMContentLoaded', (): void => {
        });

    // Gestionnaire d'événements pour le chat
    const sendBtn = this.shadowRoot?.querySelector('#send-button');
    if (sendBtn) {
            sendBtn.addEventListener('click', this.sendMessage.bind(this));
        }

    const messageInput = this.shadowRoot?.querySelector('#message-input');
    if (messageInput) {
            messageInput.addEventListener('keypress', (event: Event) => {
                if ((event as KeyboardEvent).key === 'Enter') {
                    event.preventDefault();
                    this.sendMessage();
                }
            });
        }

        // Gestionnaire pour l'envoi de fichiers
        const fileInput = this.shadowRoot?.querySelector('#file-input');
        if (fileInput) {
            fileInput.addEventListener('change', (event: Event) => {
                const file = (event.target as HTMLInputElement).files?.[0];
                if (file) {
                    this.sendFile(file);
                }
            });
        }
    }

    

    connectedCallback() {
        this.updateCurrentUserDisplay();
        this.initializeEventListeners();
        
        if (this.processId) {
            console.log('🔍 Loading chat with process ID:', this.processId);
            this.loadGroupList(this.processId);
        } else {
            console.error('❌ No process ID found in element attributes');
        }
        // Si un membre est sélectionné par défaut, charger ses messages
        if (this.selectedMemberId) {
            this.loadMemberChat(this.selectedMemberId);
        }
    }

    private addNewMessagingProcess(processId: string, processName: string) {
        console.log('🎯 Adding new messaging process:', { processId, processName });
        const groupList = this.shadowRoot?.querySelector('#group-list');
        if (!groupList) {
            console.error('Group list not found in shadow DOM');
            return;
        }

        // Vérifier si le processus existe déjà
        const existingProcess = groupList.querySelector(`[data-process-id="${processId}"]`);
        if (existingProcess) {
            console.log('Process already exists:', processId);
            return;
        }

        // Créer le nouveau groupe
        const li = document.createElement('li');
        li.className = 'group-list-item';
        li.setAttribute('data-process-id', processId);
        
        // Créer le conteneur flex
        const container = document.createElement('div');
        container.className = 'group-item-container';
        
        // Span pour le nom du processus
        const nameSpan = document.createElement('span');
        nameSpan.textContent = processName;
        nameSpan.className = 'process-name';
        
        // Assembler les éléments
        container.appendChild(nameSpan);
        li.appendChild(container);

        // Créer la liste des rôles
        const roleList = document.createElement('ul');
        roleList.className = 'role-list';
        roleList.style.display = 'none';
        
        // Ajouter un rôle par défaut pour le messaging
        const roleItem = document.createElement('li');
        roleItem.className = 'role-item';
        roleItem.textContent = 'Messaging';
        roleList.appendChild(roleItem);

        li.appendChild(roleList);
        groupList.appendChild(li);
        
        console.log('🎯 New messaging process added successfully');
    }
}

customElements.define('chat-element', ChatElement);
export { ChatElement };