class EditorModule {
    constructor() {
        this.commands = {};
        this.terminal = null;
        this._vfsPath = null;
    }

    requirements() {
        return { met: true, missing: [] };
    }

    getHelpInfo() {
        return {
            'edit': 'Open the code editor for a VFS file (usage: edit <path>)',
        };
    }
    
    registerCommands() {
        this.commands['edit'] = (args) => this.edit(args);
    }
    edit(args) {
        if (!args[0]) return this.terminal.print('Usage: edit <path>', 'warning');
        const path = args.join(' ');
        const modal = document.getElementById('code-editor');
        const title = document.getElementById('code-editor-title');
        const textarea = document.getElementById('code-editor-textarea');
        if (!modal || !textarea) return this.terminal.print('Editor modal not found', 'error');
        // Read existing file content or use empty for new files
        const content = this.terminal.fs.readFile(path);
        const fileContent = (content !== null && content !== false) ? content : '';
        // Set up modal
        this._vfsPath = path;
        title.textContent = '📝 Editing: ' + path;
        textarea.value = fileContent;
        modal.style.display = 'flex';
        textarea.focus();
        // Override save button to write back to VFS
        const saveBtn = modal.querySelector('.modal-footer .btn:last-child');
        const cancelBtn = modal.querySelector('.modal-footer .btn-danger');
        if (saveBtn) {
            saveBtn._origOnclick = saveBtn.onclick;
            saveBtn.onclick = async () => {
                const code = textarea.value;
                const ok = this.terminal.fs.writeFile(this._vfsPath, code);
                if (ok) {
                    this.terminal.print('✅ Saved to ' + this._vfsPath, 'success');
                    // Notify tutorial module for quest 4 (edit + save)
                    if (this.terminal.tutorialModule) {
                        this.terminal.tutorialModule.onFileSaved(this._vfsPath);
                    }
                } else {
                    this.terminal.print('❌ Failed to save ' + this._vfsPath, 'error');
                }
                modal.style.display = 'none';
                this._vfsPath = null;
                // Restore original onclick handler
                if (saveBtn._origOnclick) saveBtn.onclick = saveBtn._origOnclick;
                delete saveBtn._origOnclick;
            };
        }
        if (cancelBtn) {
            cancelBtn._origOnclick = cancelBtn.onclick;
            cancelBtn.onclick = () => {
                modal.style.display = 'none';
                this._vfsPath = null;
                if (cancelBtn._origOnclick) cancelBtn.onclick = cancelBtn._origOnclick;
                delete cancelBtn._origOnclick;
            };
        }
    }
}
if (typeof window.webx11 !== 'undefined' && window.webx11) {
    webx11.moduleManager.registerModule(new EditorModule(), 'https://webx11.duckdns.org/spaces/newos4/modules/ext/editor.js');
}