class AgenticCell extends HTMLElement {
    constructor() {
        super();
        this.attachShadow({ mode: 'open' });
    }

    static get observedAttributes() {
        return ['agent-type', 'input', 'output', 'status', 'timestamp', 'has-previous'];
    }

    attributeChangedCallback(name, oldValue, newValue) {
        if (oldValue !== newValue) {
            this.render();
        }
    }

    render() {
        const agentType = this.getAttribute('agent-type') || 'researcher';
        const input = this.getAttribute('input') || '';
        const output = this.getAttribute('output') ? JSON.parse(this.getAttribute('output')) : null;
        const status = this.getAttribute('status') || 'idle';
        const timestamp = this.getAttribute('timestamp') || new Date().toISOString();
        const hasPrevious = this.hasAttribute('has-previous');

        const agentIcons = {
            'researcher': 'search',
            'analyst': 'bar-chart-2',
            'data-visualizer': 'pie-chart',
            'summarizer': 'file-text'
        };

        const statusColors = {
            'idle': 'bg-gray-200',
            'loading': 'bg-blue-200 animate-pulse-slow',
            'success': 'bg-green-200',
            'error': 'bg-red-200'
        };

        this.shadowRoot.innerHTML = `
            <style>
                :host {
                    display: block;
                    position: relative;
                }

                .tool-badge {
                    display: inline-flex;
                    align-items: center;
                    padding: 0.25rem 0.5rem;
                    margin-right: 0.5rem;
                    margin-bottom: 0.5rem;
                    font-size: 0.75rem;
                    border-radius: 0.25rem;
                    background-color: #f3f4f6;
                    color: #4b5563;
                }

                .checkpoint-badge {
                    position: absolute;
                    top: 0.5rem;
                    right: 0.5rem;
                    padding: 0.25rem 0.5rem;
                    border-radius: 0.25rem;
                    font-size: 0.75rem;
                    font-weight: 500;
                }

                .checkpoint-pending {
                    background-color: #fef3c7;
                    color: #92400e;
                }

                .checkpoint-approved {
                    background-color: #d1fae5;
                    color: #065f46;
                }

                .checkpoint-rejected {
                    background-color: #fee2e2;
                    color: #991b1b;
                }

                .provenance-panel {
                    margin-top: 1rem;
                    padding: 0.75rem;
                    background-color: #f9fafb;
                    border-radius: 0.375rem;
                    border: 1px solid #e5e7eb;
                }

                .provenance-header {
                    display: flex;
                    align-items: center;
                    cursor: pointer;
                    font-weight: 500;
                    color: #4b5563;
                }

                .provenance-content {
                    margin-top: 0.5rem;
                    padding-top: 0.5rem;
                    border-top: 1px solid #e5e7eb;
                }

                .citation-item {
                    margin-bottom: 0.5rem;
                    padding: 0.5rem;
                    background-color: white;
                    border-radius: 0.25rem;
                    border: 1px solid #e5e7eb;
                }

                .verification-badge {
                    display: inline-flex;
                    align-items: center;
                    padding: 0.25rem 0.5rem;
                    border-radius: 0.25rem;
                    font-size: 0.75rem;
                    font-weight: 500;
                }

                .verification-high {
                    background-color: #d1fae5;
                    color: #065f46;
                }

                .verification-medium {
                    background-color: #fef3c7;
                    color: #92400e;
                }

                .verification-low {
                    background-color: #fee2e2;
                    color: #991b1b;
                }
.cell-container {
                    border-radius: 0.5rem;
                    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
                    background-color: white;
                    overflow: hidden;
                }
                
                .cell-header {
                    display: flex;
                    align-items: center;
                    padding: 0.75rem 1rem;
                    background-color: #f9fafb;
                    border-bottom: 1px solid #e5e7eb;
                }
                
                .agent-icon {
                    display: flex;
                    align-items: center;
                    justify-content: center;
                    width: 2rem;
                    height: 2rem;
                    border-radius: 50%;
                    margin-right: 0.75rem;
                }
                
                .agent-name {
                    font-weight: 600;
                    color: #374151;
                    text-transform: capitalize;
                }
                
                .cell-status {
                    margin-left: auto;
                    font-size: 0.75rem;
                    padding: 0.25rem 0.5rem;
                    border-radius: 9999px;
                }
                
                .cell-timestamp {
                    margin-left: 0.75rem;
                    font-size: 0.75rem;
                    color: #6b7280;
                }
                
                .cell-content {
                    padding: 1rem;
                }
                
                .input-area {
                    width: 100%;
                    min-height: 3rem;
                    padding: 0.75rem;
                    border: 1px solid #e5e7eb;
                    border-radius: 0.375rem;
                    margin-bottom: 1rem;
                    font-family: inherit;
                }
                
                .input-area:focus {
                    outline: none;
                    border-color: #3b82f6;
                    box-shadow: 0 0 0 1px #3b82f6;
                }
                
                .actions {
                    display: flex;
                    justify-content: flex-end;
                    margin-bottom: 1rem;
                }
                
                .run-btn {
                    display: flex;
                    align-items: center;
                    gap: 0.5rem;
                    padding: 0.5rem 1rem;
                    background-color: #3b82f6;
                    color: white;
                    border: none;
                    border-radius: 0.375rem;
                    cursor: pointer;
                    transition: background-color 0.2s;
                }
                
                .run-btn:hover {
                    background-color: #2563eb;
                }
                
                .run-btn:disabled {
                    background-color: #9ca3af;
                    cursor: not-allowed;
                }
                
                .output-container {
                    border-top: 1px solid #e5e7eb;
                    padding-top: 1rem;
                }
                
                .output-header {
                    display: flex;
                    align-items: center;
                    margin-bottom: 0.75rem;
                    color: #4b5563;
                    font-weight: 500;
                }
                
                .empty-output {
                    color: #9ca3af;
                    font-style: italic;
                    padding: 1rem;
                    text-align: center;
                }
            </style>
            
            <div class="cell-container cell-connector">
                <div class="cell-header">
                    <div class="agent-icon bg-blue-100 text-blue-600">
                        <i data-feather="${agentIcons[agentType] || 'circle'}"></i>
                    </div>
                    <span class="agent-name">${agentType}</span>
                    ${status !== 'idle' ? `
                        <span class="cell-status ${statusColors[status]}">
                            ${status === 'loading' ? 'Running...' : status}
                        </span>
                        <span class="cell-timestamp">${new Date(timestamp).toLocaleString()}</span>
                    ` : ''}
                </div>
                ${output?.metadata?.requires_human_check ? `
                    <div class="checkpoint-badge checkpoint-${output.metadata.human_check_status || 'pending'}">
                        ${output.metadata.human_check_status === 'approved' ? '✅ Approved' : 
                          output.metadata.human_check_status === 'rejected' ? '❌ Rejected' : '🧍 Pending Review'}
                    </div>
                ` : ''}
<div class="cell-content">
                    <textarea class="input-area" placeholder="Enter your prompt or reference other cells with {{cell_id.output}}">${input}</textarea>
                    
                    <div class="actions">
                        <button class="run-btn" ${status === 'loading' ? 'disabled' : ''}>
                            <i data-feather="play"></i>
                            Run
                        </button>
                    </div>
                    <div class="output-container">
                        ${output ? `
                            <div class="output-header">
                                <i data-feather="file-text" class="mr-2"></i>
                                Output
                            </div>
                            ${output.tools_used ? `
                                <div class="mt-2 mb-3">
                                    <div class="text-xs text-gray-500 mb-1">Tools used:</div>
                                    ${output.tools_used.map(tool => `
                                        <span class="tool-badge">
                                            <i data-feather="${tool.icon || 'tool'}" class="w-3 h-3 mr-1"></i>
                                            ${tool.name}
                                        </span>
                                    `).join('')}
                                </div>
                            ` : ''}
                            <agentic-output-viewer output='${JSON.stringify(output)}'></agentic-output-viewer>
                            
                            ${output.metadata ? `
                                <div class="provenance-panel">
                                    <div class="provenance-header" onclick="this.nextElementSibling.classList.toggle('hidden')">
                                        <i data-feather="info" class="mr-2"></i>
                                        Provenance & Metadata
                                        <i data-feather="chevron-down" class="ml-auto w-4 h-4"></i>
                                    </div>
                                    <div class="provenance-content hidden">
                                        ${output.metadata.version_hash ? `
                                            <div class="mb-2">
                                                <div class="text-xs text-gray-500">Version:</div>
                                                <div class="flex items-center mt-1">
                                                    <code class="text-xs bg-gray-100 p-1 rounded mr-2">${output.metadata.version_hash.substring(0, 12)}...</code>
                                                    <button class="text-xs text-blue-600 hover:text-blue-800" onclick="navigator.clipboard.writeText('${output.metadata.version_hash}')">Copy</button>
                                                </div>
                                            </div>
                                        ` : ''}
                                        
                                        ${output.metadata.verification_score ? `
                                            <div class="mb-2">
                                                <div class="text-xs text-gray-500">Verification:</div>
                                                <div class="mt-1">
                                                    <span class="verification-badge ${output.metadata.verification_score > 0.8 ? 'verification-high' : 
                                                      output.metadata.verification_score > 0.5 ? 'verification-medium' : 'verification-low'}">
                                                        ${output.metadata.verification_score > 0.8 ? '✅ High' : 
                                                          output.metadata.verification_score > 0.5 ? '⚠️ Medium' : '❌ Low'} (${Math.round(output.metadata.verification_score * 100)}%)
                                                    </span>
                                                </div>
                                            </div>
                                        ` : ''}
                                        
                                        ${output.metadata.source_citations?.length > 0 ? `
                                            <div>
                                                <div class="text-xs text-gray-500">Citations:</div>
                                                <div class="mt-1">
                                                    ${output.metadata.source_citations.map(cite => `
                                                        <div class="citation-item">
                                                            <a href="${cite.url}" target="_blank" class="text-sm text-blue-600 hover:underline">${cite.title}</a>
                                                            ${cite.description ? `<div class="text-xs text-gray-500 mt-1">${cite.description}</div>` : ''}
                                                        </div>
                                                    `).join('')}
                                                </div>
                                            </div>
                                        ` : ''}
                                    </div>
                                </div>
                            ` : ''}
                        ` : `
                            <div class="empty-output">No output yet. Run the cell to see results.</div>
                        `}
                    </div>
</div>
            </div>
        `;
        
        // Add event listener for the run button
        const runBtn = this.shadowRoot.querySelector('.run-btn');
        runBtn.addEventListener('click', () => {
            const cellId = this.getAttribute('id');
            mockRunCell(cellId);
        });
        
        // Initialize feather icons
        if (window.feather) {
            window.feather.replace();
        }
    }
}

customElements.define('agentic-cell', AgenticCell);