{% extends 'base.html' %}
{% load static %}

{% block title %}Data Analyzer Agent - NetCop AI Hub{% endblock %}

{% block extra_css %}
<style>
    * {
        box-sizing: border-box;
    }
    
    /* Override main-container for full-width sections */
    .main-container {
        max-width: none;
        padding: 0;
        margin-top: 0;
    }
    
    /* Page background */
    .data-analyzer-page {
        background: var(--gradient-hero);
        min-height: calc(100vh - 80px);
        padding: clamp(20px, 5vw, 40px);
        width: 100vw;
        margin-left: calc(-50vw + 50%);
    }
    
    .container {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 clamp(16px, 4vw, 24px);
    }
    
    /* Main grid layout */
    .main-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(min(350px, 100%), 1fr));
        gap: clamp(16px, 4vw, 24px);
        align-items: start;
    }
    
    /* Card styles with glassmorphism */
    .card {
        background: rgba(255, 255, 255, 0.9);
        border-radius: clamp(12px, 3vw, 16px);
        padding: clamp(16px, 4vw, 24px);
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        margin-bottom: clamp(16px, 4vw, 24px);
    }
    
    .section-title {
        font-size: clamp(16px, 4vw, 18px);
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: clamp(12px, 3vw, 16px);
    }
    
    /* Form inputs */
    .form-input {
        width: 100%;
        padding: clamp(12px, 3vw, 16px) clamp(16px, 4vw, 20px);
        border: 2px solid var(--border-medium);
        border-radius: clamp(8px, 2vw, 12px);
        font-size: clamp(14px, 3.5vw, 16px);
        transition: border-color 0.2s ease;
        min-height: 48px;
        margin-bottom: clamp(12px, 3vw, 16px);
    }
    
    .form-input:focus {
        outline: none;
        border-color: var(--success-green);
    }
    
    .help-text {
        font-size: clamp(12px, 3vw, 14px);
        color: var(--text-secondary);
    }
    
    /* File upload zone */
    .file-upload-zone {
        border: 2px dashed var(--border-medium);
        border-radius: clamp(12px, 3vw, 16px);
        padding: clamp(24px, 6vw, 40px);
        text-align: center;
        transition: all 0.3s ease;
        background: var(--background-light);
        cursor: pointer;
        margin-bottom: clamp(12px, 3vw, 16px);
    }
    
    .file-upload-zone.dragover {
        border-color: var(--success-green);
        background: rgba(16, 185, 129, 0.1);
    }
    
    .file-upload-zone:hover {
        border-color: var(--success-green);
        background: rgba(16, 185, 129, 0.1);
    }
    
    .file-preview {
        background: rgba(16, 185, 129, 0.1);
        border: 1px solid rgba(16, 185, 129, 0.5);
        border-radius: 8px;
        padding: 12px;
        margin-top: 12px;
        display: flex;
        align-items: center;
        gap: 12px;
    }
    
    /* Radio button grids */
    .radio-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(min(180px, 100%), 1fr));
        gap: clamp(8px, 2vw, 12px);
    }
    
    .radio-option {
        display: flex;
        align-items: center;
        gap: clamp(8px, 2vw, 12px);
        padding: clamp(12px, 3vw, 16px);
        border: 2px solid var(--border-light);
        border-radius: clamp(8px, 2vw, 12px);
        cursor: pointer;
        background: white;
        transition: all 0.2s ease;
        min-height: 44px;
    }
    
    .radio-option.selected {
        border-color: var(--success-green);
        background: rgba(16, 185, 129, 0.1);
    }
    
    .radio-option input[type="radio"] {
        margin: 0;
    }
    
    /* Processing status */
    .processing-status {
        padding: clamp(16px, 4vw, 20px);
        background: rgba(16, 185, 129, 0.1);
        border: 1px solid var(--success-green);
        border-radius: clamp(8px, 2vw, 12px);
        color: var(--success-dark);
        font-weight: 600;
        text-align: center;
        margin-bottom: clamp(16px, 4vw, 24px);
    }
    
    /* Results card */
    .results-card {
        background: rgba(255, 255, 255, 0.9);
        border-radius: 16px;
        padding: 24px;
        border: 1px solid rgba(255, 255, 255, 0.3);
        backdrop-filter: blur(20px);
        box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
        margin-top: 24px;
    }
    
    .results-header {
        display: flex;
        align-items: center;
        gap: 12px;
        margin-bottom: 20px;
    }
    
    .results-content {
        background: var(--background-page);
        border: 1px solid var(--border-light);
        border-radius: 12px;
        padding: 24px;
        margin-bottom: 20px;
        white-space: pre-line;
        line-height: 1.7;
        color: var(--text-primary);
        font-size: 15px;
    }
    
    .action-buttons {
        display: flex;
        gap: 12px;
        margin-top: 20px;
        flex-wrap: wrap;
    }
    
    /* Button styles */
    .btn {
        padding: clamp(12px, 3vw, 16px) clamp(20px, 5vw, 32px);
        border: none;
        border-radius: clamp(8px, 2vw, 12px);
        font-weight: 600;
        cursor: pointer;
        font-size: clamp(14px, 3.5vw, 16px);
        min-height: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        transition: transform 0.1s ease;
        text-decoration: none;
    }
    
    .btn-primary {
        background: var(--gradient-success);
        color: white;
        flex: 1;
        min-width: 120px;
    }
    
    .btn-secondary {
        background: var(--background-subtle);
        color: var(--text-primary);
        border: 2px solid var(--border-medium);
        flex: 1;
        min-width: 120px;
    }
    
    .btn:hover {
        transform: translateY(-1px);
    }
    
    .btn:disabled {
        background: var(--border-strong);
        color: white;
        cursor: not-allowed;
        transform: none;
        opacity: 0.6;
    }
    
    /* Wallet sidebar */
    .wallet-section {
        position: sticky;
        top: 20px;
    }
    
    .wallet-balance {
        font-size: clamp(24px, 6vw, 28px);
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 8px;
    }
    
    .balance-label {
        font-size: clamp(14px, 3.5vw, 16px);
        color: var(--text-secondary);
        margin-bottom: clamp(16px, 4vw, 20px);
    }
    
    .process-btn {
        width: 100%;
        margin-bottom: 12px;
    }
    
    .usage-info {
        padding: 16px;
        background: rgba(16, 185, 129, 0.1);
        border-radius: 12px;
        border: 1px solid rgba(16, 185, 129, 0.2);
    }
    
    .usage-info h4 {
        margin: 0 0 8px 0;
        font-size: 14px;
        font-weight: 600;
        color: var(--success-dark);
    }
    
    .usage-info ul {
        margin: 0;
        font-size: 12px;
        color: var(--text-primary);
        line-height: 1.4;
        list-style: none;
        padding-left: 0;
    }
    
    .usage-info li {
        margin: 4px 0;
        padding-left: 16px;
        position: relative;
    }
    
    .usage-info li::before {
        content: "•";
        position: absolute;
        left: 0;
        color: var(--success-green);
    }
    
    /* Responsive */
    @media (max-width: 768px) {
        .main-grid {
            grid-template-columns: 1fr;
        }
        
        .radio-grid {
            grid-template-columns: 1fr;
        }
        
        .action-buttons {
            flex-direction: column;
        }
    }
</style>
{% endblock %}

{% block content %}
<div class="data-analyzer-page">
    <div class="container">
        <!-- Main Content Grid -->
        <div class="main-grid">
            <!-- Input Form -->
            <div>
                <!-- File Upload Section -->
                <div class="card">
                    <h3 class="section-title">📁 Upload Your Data File</h3>
                    
                    <div class="file-upload-zone" id="fileUploadZone" onclick="document.getElementById('fileInput').click()">
                        <div style="font-size: clamp(32px, 8vw, 48px); margin-bottom: 12px;">📊</div>
                        <div style="font-size: clamp(16px, 4vw, 18px); font-weight: 600; color: var(--text-primary); margin-bottom: 8px;">
                            Choose or drag your data file here
                        </div>
                        <div style="font-size: clamp(14px, 3.5vw, 16px); color: var(--text-secondary);">
                            Supports PDF, CSV, Excel files (up to 10MB)
                        </div>
                    </div>
                    
                    <input
                        type="file"
                        id="fileInput"
                        accept=".pdf,.csv,.xlsx,.xls"
                        style="display: none;"
                    />
                    
                    <div id="filePreview" class="file-preview" style="display: none;">
                        <div style="font-size: 24px;">📄</div>
                        <div style="flex: 1;">
                            <div style="font-weight: 600; color: var(--text-primary);" id="fileName"></div>
                            <div style="font-size: 14px; color: var(--text-secondary);" id="fileSize"></div>
                        </div>
                        <button type="button" onclick="removeFile()" style="
                            background: var(--error-red);
                            color: white;
                            border: none;
                            border-radius: 4px;
                            padding: 4px 8px;
                            cursor: pointer;
                            font-size: 12px;
                        ">
                            Remove
                        </button>
                    </div>
                </div>
                
                <!-- Analysis Type Selection -->
                <div class="card">
                    <h3 class="section-title">🔍 Analysis Type</h3>
                    
                    <div class="radio-grid">
                        <label class="radio-option selected" data-value="summary">
                            <input type="radio" name="analysisType" value="summary" checked />
                            <div style="font-size: clamp(16px, 4vw, 20px);">📋</div>
                            <div>
                                <div style="font-weight: 600; margin-bottom: clamp(2px, 1vw, 4px); font-size: clamp(14px, 3.5vw, 16px);">
                                    Summary Analysis
                                </div>
                                <div style="font-size: clamp(12px, 3vw, 14px); color: var(--text-secondary);">
                                    Quick overview and key insights
                                </div>
                            </div>
                        </label>
                        
                        <label class="radio-option" data-value="detailed">
                            <input type="radio" name="analysisType" value="detailed" />
                            <div style="font-size: clamp(16px, 4vw, 20px);">📈</div>
                            <div>
                                <div style="font-weight: 600; margin-bottom: clamp(2px, 1vw, 4px); font-size: clamp(14px, 3.5vw, 16px);">
                                    Detailed Analysis
                                </div>
                                <div style="font-size: clamp(12px, 3vw, 14px); color: var(--text-secondary);">
                                    Comprehensive statistical analysis
                                </div>
                            </div>
                        </label>
                        
                        <label class="radio-option" data-value="statistical">
                            <input type="radio" name="analysisType" value="statistical" />
                            <div style="font-size: clamp(16px, 4vw, 20px);">📊</div>
                            <div>
                                <div style="font-weight: 600; margin-bottom: clamp(2px, 1vw, 4px); font-size: clamp(14px, 3.5vw, 16px);">
                                    Statistical Analysis
                                </div>
                                <div style="font-size: clamp(12px, 3vw, 14px); color: var(--text-secondary);">
                                    Advanced statistics and trends
                                </div>
                            </div>
                        </label>
                    </div>
                </div>
                
                <!-- Processing Status -->
                <div id="processingStatus" class="processing-status" style="display: none;">
                    <div style="font-size: clamp(16px, 4vw, 18px); margin-bottom: 8px;">
                        ⏳ Processing...
                    </div>
                    <div style="font-size: clamp(14px, 3.5vw, 16px);" id="statusText">
                        Analyzing your data file...
                    </div>
                </div>
                
                <!-- Results -->
                <div id="analysisResults" class="results-card" style="display: none;">
                    <div class="results-header">
                        <div style="font-size: 24px;">✅</div>
                        <h3 style="font-size: 20px; font-weight: 600; color: var(--text-primary); margin: 0;">
                            Data Analysis Results
                        </h3>
                        <div style="
                            background: var(--success-green);
                            color: white;
                            padding: 6px 12px;
                            border-radius: 6px;
                            font-size: 14px;
                            font-weight: 600;
                            margin-left: auto;
                        ">
                            ✅ Complete
                        </div>
                    </div>
                    
                    <div class="results-content" id="analysisContent">
                        <!-- Analysis data will be displayed here -->
                    </div>
                    
                    <div class="action-buttons">
                        <button onclick="copyAnalysisReport()" class="btn btn-primary">
                            📋 Copy Report
                        </button>
                        <button onclick="downloadAnalysisReport()" class="btn btn-secondary">
                            💾 Download Report
                        </button>
                    </div>
                </div>
            </div>
            
            <!-- Wallet Sidebar -->
            <div class="wallet-section">
                <div class="card">
                    <h3 class="section-title">💳 Your Wallet</h3>
                    
                    <div class="wallet-balance" id="walletBalance">{{ user.wallet_balance|floatformat:2 }} AED</div>
                    <div class="balance-label">Available Balance</div>
                    
                    <button 
                        class="btn btn-primary process-btn"
                        id="processButton"
                        onclick="analyzeData()"
                    >
                        📊 Analyze Data (5.00 AED)
                    </button>
                </div>
                
                <div class="usage-info">
                    <h4>💡 How it works</h4>
                    <ul>
                        <li>Upload PDF, CSV, or Excel files</li>
                        <li>Choose your analysis depth</li>
                        <li>Get AI-powered insights</li>
                        <li>Download comprehensive reports</li>
                    </ul>
                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
    let selectedFile = null;
    
    // File upload handling
    const fileInput = document.getElementById('fileInput');
    const fileUploadZone = document.getElementById('fileUploadZone');
    const filePreview = document.getElementById('filePreview');
    
    // Handle file input change
    fileInput.addEventListener('change', function(e) {
        if (e.target.files.length > 0) {
            selectedFile = e.target.files[0];
            showFilePreview(selectedFile);
        }
    });
    
    // Drag and drop functionality
    fileUploadZone.addEventListener('dragover', function(e) {
        e.preventDefault();
        fileUploadZone.classList.add('dragover');
    });
    
    fileUploadZone.addEventListener('dragleave', function(e) {
        e.preventDefault();
        fileUploadZone.classList.remove('dragover');
    });
    
    fileUploadZone.addEventListener('drop', function(e) {
        e.preventDefault();
        fileUploadZone.classList.remove('dragover');
        
        const files = e.dataTransfer.files;
        if (files.length > 0) {
            const file = files[0];
            if (isValidFile(file)) {
                selectedFile = file;
                fileInput.files = files;
                showFilePreview(file);
            } else {
                showToast('Please select a valid data file (PDF, CSV, Excel)', 'error');
            }
        }
    });
    
    // Show file preview
    function showFilePreview(file) {
        document.getElementById('fileName').textContent = file.name;
        document.getElementById('fileSize').textContent = formatFileSize(file.size);
        filePreview.style.display = 'flex';
        fileUploadZone.style.display = 'none';
    }
    
    // Remove file
    function removeFile() {
        selectedFile = null;
        fileInput.value = '';
        filePreview.style.display = 'none';
        fileUploadZone.style.display = 'block';
    }
    
    // Validate file type
    function isValidFile(file) {
        const validTypes = [
            'application/pdf',
            'text/csv',
            'application/vnd.ms-excel',
            'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
        ];
        return validTypes.includes(file.type) || file.name.match(/\.(pdf|csv|xlsx|xls)$/i);
    }
    
    // Format file size
    function formatFileSize(bytes) {
        if (bytes === 0) return '0 Bytes';
        const k = 1024;
        const sizes = ['Bytes', 'KB', 'MB', 'GB'];
        const i = Math.floor(Math.log(bytes) / Math.log(k));
        return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
    }
    
    // Radio button handling
    document.querySelectorAll('.radio-option').forEach(option => {
        option.addEventListener('click', function() {
            document.querySelectorAll('.radio-option').forEach(opt => opt.classList.remove('selected'));
            this.classList.add('selected');
            this.querySelector('input[type="radio"]').checked = true;
        });
    });
    
    // Analysis function
    function analyzeData() {
        if (!selectedFile) {
            showToast('Please select a data file', 'error');
            return;
        }
        
        // Check user authentication
        {% if not user.is_authenticated %}
        window.location.href = "{% url 'authentication:login' %}";
        return;
        {% endif %}
        
        // Check wallet balance
        const balance = {{ user.wallet_balance|default:0 }};
        if (balance < 5.00) {
            showToast('Insufficient balance! You need 5.00 AED.', 'error');
            setTimeout(() => {
                window.location.href = "{% url 'core:wallet' %}";
            }, 2000);
            return;
        }
        
        const analysisType = document.querySelector('input[name="analysisType"]:checked').value;
        
        // Show processing status
        document.getElementById('processingStatus').style.display = 'block';
        document.getElementById('processButton').disabled = true;
        document.getElementById('processButton').innerHTML = '⏳ Processing...';
        document.getElementById('analysisResults').style.display = 'none';
        
        // Processing steps for user feedback
        const steps = [
            'Reading file structure...',
            'Extracting data patterns...',
            'Performing statistical analysis...',
            'Generating insights...',
            'Finalizing report...'
        ];
        
        let currentStep = 0;
        const stepInterval = setInterval(() => {
            if (currentStep < steps.length) {
                document.getElementById('statusText').textContent = steps[currentStep];
                currentStep++;
            } else {
                clearInterval(stepInterval);
            }
        }, 1000);

        // Submit form data to backend
        const formData = new FormData();
        formData.append('file', selectedFile);
        formData.append('analysis_type', analysisType);
        formData.append('csrfmiddlewaretoken', document.querySelector('[name=csrfmiddlewaretoken]').value);
        
        fetch('/agents/data-analyzer/process/', {
            method: 'POST',
            body: formData,
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            }
        })
        .then(response => response.json())
        .then(result => {
            clearInterval(stepInterval);
            if (result.success && result.request_id) {
                // Start polling for results
                pollForResults(result.request_id);
            } else {
                // Handle immediate response
                document.getElementById('processingStatus').style.display = 'none';
                document.getElementById('processButton').disabled = false;
                document.getElementById('processButton').innerHTML = '📊 Analyze Data (5.00 AED)';
                
                if (result.error) {
                    showToast(`❌ ${result.error}`, 'error');
                } else {
                    displayResults(result);
                }
            }
        })
        .catch(error => {
            clearInterval(stepInterval);
            console.error('Error:', error);
            document.getElementById('processingStatus').style.display = 'none';
            document.getElementById('processButton').disabled = false;
            document.getElementById('processButton').innerHTML = '📊 Analyze Data (5.00 AED)';
            showToast('❌ Network error - please try again', 'error');
        });
    }
    
    // Display analysis results
    function displayResults(result) {
        const resultsContainer = document.getElementById('analysisResults');
        const contentContainer = document.getElementById('analysisContent');
        
        if (result.success && result.status === 'completed') {
            // Use the analysis content from backend
            const content = result.report_text || result.analysis_results || result.insights_summary || 'Data analysis completed successfully!';
            contentContainer.textContent = content;
            resultsContainer.style.display = 'block';
            
            // Update wallet balance if provided
            if (result.wallet_balance !== undefined) {
                updateWalletBalance(result.wallet_balance);
            }
            
            showToast('✅ Data analysis completed and payment processed!', 'success');
        } else {
            showToast('❌ Failed to analyze data - no charge applied', 'error');
        }
    }

    // Poll for results
    function pollForResults(requestId) {
        let pollCount = 0;
        const maxPolls = 60; // 60 seconds maximum for data analysis
        
        const pollInterval = setInterval(() => {
            pollCount++;
            
            fetch(`/agents/data-analyzer/result/${requestId}/`)
                .then(response => response.json())
                .then(result => {
                    if (result.status === 'completed' || result.status === 'failed') {
                        clearInterval(pollInterval);
                        document.getElementById('processingStatus').style.display = 'none';
                        document.getElementById('processButton').disabled = false;
                        document.getElementById('processButton').innerHTML = '📊 Analyze Data (5.00 AED)';
                        
                        displayResults(result);
                    } else if (pollCount >= maxPolls) {
                        clearInterval(pollInterval);
                        document.getElementById('processingStatus').style.display = 'none';
                        document.getElementById('processButton').disabled = false;
                        document.getElementById('processButton').innerHTML = '📊 Analyze Data (5.00 AED)';
                        showToast('❌ Processing timeout - please try again', 'error');
                    }
                })
                .catch(error => {
                    console.error('Error polling results:', error);
                    if (pollCount >= maxPolls) {
                        clearInterval(pollInterval);
                        document.getElementById('processingStatus').style.display = 'none';
                        document.getElementById('processButton').disabled = false;
                        document.getElementById('processButton').innerHTML = '📊 Analyze Data (5.00 AED)';
                        showToast('❌ Network error - please try again', 'error');
                    }
                });
        }, 1000);
    }
    
    
    function updateWalletBalance(newBalance) {
        // Update wallet balance display
        const balanceElements = document.querySelectorAll('[data-wallet-balance]');
        balanceElements.forEach(element => {
            element.textContent = `${newBalance.toFixed(2)} AED`;
        });
        window.currentWalletBalance = newBalance;
    }
    
    function copyAnalysisReport() {
        const reportText = document.getElementById('analysisContent').textContent;
        navigator.clipboard.writeText(reportText).then(() => {
            showToast('📋 Analysis report copied to clipboard!', 'success');
        }).catch(() => {
            showToast('Failed to copy report', 'error');
        });
    }
    
    function downloadAnalysisReport() {
        const reportText = document.getElementById('analysisContent').textContent;
        const blob = new Blob([reportText], { type: 'text/plain' });
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = `data-analysis-report-${Date.now()}.txt`;
        a.click();
        URL.revokeObjectURL(url);
        showToast('💾 Analysis report downloaded!', 'success');
    }
    
    function showToast(message, type = 'info') {
        const toast = document.createElement('div');
        toast.style.cssText = `
            position: fixed;
            top: 20px;
            right: 20px;
            padding: 12px 20px;
            border-radius: 8px;
            color: white;
            font-weight: 600;
            z-index: 1000;
            ${type === 'success' ? 'background: var(--success-green);' : 'background: var(--error-red);'}
        `;
        toast.textContent = message;
        document.body.appendChild(toast);
        
        setTimeout(() => {
            toast.remove();
        }, 3000);
    }
</script>
{% endblock %}