/**
 * CatCut Text Editor Component
 * Enhanced text editor for story-driven editing
 */
class CatCutTextEditor extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
        this.segments = [];
    }

    connectedCallback() {
        this.render();
        this.setupEventListeners();
    }

    render() {
        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    height: 100%;
                    background: #f8fafc;
                    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
                }

                .editor-container {
                    height: 100%;
                    overflow-y: auto;
                    padding: 1.5rem;
                }

                .editor-header {
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                    margin-bottom: 1.5rem;
                }

                .editor-title {
                    font-size: 1.25rem;
                    font-weight: 600;
                    color: #1e293b;
                }

                .editor-controls {
                    display: flex;
                    gap: 0.5rem;
                }

                .control-btn {
                    padding: 0.5rem;
                    background: #ffffff;
                    border: 1px solid #e2e8f0;
                    border-radius: 0.375rem;
                    cursor: pointer;
                    transition: all 0.2s ease;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                }

                .control-btn:hover {
                    border-color: #f59e0b;
                    color: #f59e0b;
                }

                .control-btn.active {
                    background: #fffbeb;
                    border-color: #f59e0b;
                    color: #f59e0b;
                }

                .editor-content {
                    font-size: 1.125rem;
                    line-height: 1.7;
                    color: #334155;
                    outline: none;
                    min-height: 200px;
                }

                .editor-content:focus {
                    outline: none;
                }

                .story-segment {
                    position: relative;
                    padding: 1rem;
                    margin-bottom: 0.75rem;
                    border-radius: 0.5rem;
                    border: 1px solid transparent;
                    transition: all 0.3s ease;
                    cursor: pointer;
                    background: white;
                }

                .story-segment:hover {
                    border-color: rgba(245, 158, 11, 0.3);
                    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
                }

                .story-segment.active {
                    border-color: #f59e0b;
                    background: #fffbeb;
                    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
                }

                .story-segment.locked {
                    border-color: #94a3b8;
                    background: #f8fafc;
                }

                .segment-controls {
                    position: absolute;
                    top: 0.5rem;
                    right: 0.5rem;
                    display: flex;
                    gap: 0.5rem;
                    opacity: 0;
                    transition: opacity 0.2s ease;
                }

                .story-segment:hover .segment-controls {
                    opacity: 1;
                }

                .control-btn-small {
                    width: 1.75rem;
                    height: 1.75rem;
                    border-radius: 0.375rem;
                    border: none;
                    cursor: pointer;
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    transition: all 0.2s ease;
                    background: #f1f5f9;
                    color: #64748b;
                }

                .control-btn-small:hover {
                    background: #f59e0b;
                    color: white;
                }

                .control-btn-small.danger:hover {
                    background: #ef4444;
                }

                .segment-text {
                    margin: 0;
                    padding-right: 2rem;
                    white-space: pre-wrap;
                    word-wrap: break-word;
                }

                .segment-text:focus {
                    outline: 2px solid #f59e0b;
                    outline-offset: 4px;
                    border-radius: 4px;
                }

                .segment-metadata {
                    margin-top: 0.75rem;
                    font-size: 0.875rem;
                    display: flex;
                    justify-content: space-between;
                    align-items: center;
                }

                .ai-confidence {
                    display: flex;
                    align-items: center;
                    gap: 0.5rem;
                }

                .confidence-bar {
                    width: 60px;
                    height: 4px;
                    background: #e2e8f0;
                    border-radius: 2px;
                    overflow: hidden;
                }

                .confidence-fill {
                    height: 100%;
                    background: #f59e0b;
                    transition: width 0.3s ease;
                }

                .segment-timestamp {
                    color: #64748b;
                    font-variant-numeric: tabular-nums;
                }

                .add-segment-btn {
                    width: 100%;
                    padding: 1rem;
                    border: 2px dashed #e2e8f0;
                    border-radius: 0.5rem;
                    background: transparent;
                    color: #64748b;
                    cursor: pointer;
                    transition: all