feat(audit): Add previous vs current AI analysis comparison

Store previous analysis before regeneration and show comparison table
with priority breakdown, new/removed actions diff.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

audit_ai_service.py

@@ -600,12 +600,19 @@ def generate_analysis(company_id: int, audit_type: str, user_id: int = None, for
 
             if cache and cache.audit_data_hash == data_hash and cache.expires_at and cache.expires_at > datetime.now():
                 logger.info(f"AI analysis cache hit for company {company_id} audit_type={audit_type}")
-                return {
+                result = {
                     'summary': cache.analysis_summary,
                     'actions': cache.actions_json or [],
                     'cached': True,
                     'generated_at': cache.generated_at.isoformat() if cache.generated_at else None,
                 }
+                if cache.previous_summary or cache.previous_actions_json:
+                    result['previous'] = {
+                        'summary': cache.previous_summary,
+                        'actions': cache.previous_actions_json or [],
+                        'generated_at': cache.previous_generated_at.isoformat() if cache.previous_generated_at else None,
+                    }
+                return result
 
         # Build prompt
         prompt_builders = {
@@ -656,6 +663,10 @@ def generate_analysis(company_id: int, audit_type: str, user_id: int = None, for
         ).first()
 
         if cache:
+            # Preserve previous analysis for comparison
+            cache.previous_summary = cache.analysis_summary
+            cache.previous_actions_json = cache.actions_json
+            cache.previous_generated_at = cache.generated_at
             cache.analysis_summary = summary
             cache.actions_json = actions
             cache.audit_data_hash = data_hash
@@ -693,12 +704,19 @@ def generate_analysis(company_id: int, audit_type: str, user_id: int = None, for
 
         db.commit()
 
-        return {
+        result = {
             'summary': summary,
             'actions': actions,
             'cached': False,
             'generated_at': datetime.now().isoformat(),
         }
+        if cache and (cache.previous_summary or cache.previous_actions_json):
+            result['previous'] = {
+                'summary': cache.previous_summary,
+                'actions': cache.previous_actions_json or [],
+                'generated_at': cache.previous_generated_at.isoformat() if cache.previous_generated_at else None,
+            }
+        return result
 
     except Exception as e:
         db.rollback()

database.py

@@ -5135,6 +5135,9 @@ class AuditAICache(Base):
     audit_data_hash = Column(String(64))
     generated_at = Column(DateTime, default=datetime.now)
     expires_at = Column(DateTime)
+    previous_summary = Column(Text)
+    previous_actions_json = Column(JSONB)
+    previous_generated_at = Column(DateTime)
 
     # Relationships
     company = relationship('Company', backref='audit_ai_caches')

database/migrations/057_audit_cache_previous.sql

@@ -0,0 +1,6 @@
+-- Migration 057: Add previous analysis columns to audit_ai_cache
+-- Stores the previous AI analysis before regeneration for comparison
+
+ALTER TABLE audit_ai_cache ADD COLUMN IF NOT EXISTS previous_summary TEXT;
+ALTER TABLE audit_ai_cache ADD COLUMN IF NOT EXISTS previous_actions_json JSONB;
+ALTER TABLE audit_ai_cache ADD COLUMN IF NOT EXISTS previous_generated_at TIMESTAMP;

templates/gbp_audit.html

@@ -2049,6 +2049,9 @@ function renderAIResults(data) {
         actionsList.appendChild(card);
     });
 
+    // Render comparison with previous analysis if available
+    if (typeof renderAIComparison === 'function') renderAIComparison(data);
+
     results.style.display = 'block';
     document.getElementById('aiActionsSection').scrollIntoView({behavior: 'smooth', block: 'start'});
     window._aiActions = actions;

templates/partials/audit_ai_actions.html

@@ -55,6 +55,30 @@
             </div>
         </div>
 
+        <!-- Comparison with previous analysis -->
+        <div id="aiComparison" style="display: none; margin-bottom: var(--spacing-lg);">
+            <div style="display: flex; align-items: center; gap: var(--spacing-sm); margin-bottom: var(--spacing-sm); cursor: pointer;" onclick="toggleComparison()">
+                <svg id="aiComparisonArrow" width="16" height="16" fill="none" stroke="currentColor" viewBox="0 0 24 24" style="transition: transform 0.2s;">
+                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7"/>
+                </svg>
+                <span style="font-size: var(--font-size-sm); font-weight: 600; color: var(--text-secondary);">Porownanie z poprzednia analiza</span>
+                <span id="aiComparisonDate" style="font-size: var(--font-size-xs); color: var(--text-tertiary);"></span>
+            </div>
+            <div id="aiComparisonBody" style="display: none;">
+                <table class="ai-comparison-table">
+                    <thead>
+                        <tr>
+                            <th>Aspekt</th>
+                            <th>Poprzednia</th>
+                            <th>Obecna</th>
+                        </tr>
+                    </thead>
+                    <tbody id="aiComparisonRows"></tbody>
+                </table>
+                <div id="aiComparisonDiff" style="margin-top: var(--spacing-sm);"></div>
+            </div>
+        </div>
+
         <!-- Actions List -->
         <div style="font-size: var(--font-size-lg); font-weight: 600; color: var(--text-primary); margin-bottom: var(--spacing-md);">
             Priorytetowe akcje
@@ -160,6 +184,48 @@
     .ai-action-card.dismissed {
         display: none;
     }
+
+    .ai-comparison-table {
+        width: 100%;
+        border-collapse: collapse;
+        font-size: var(--font-size-sm);
+    }
+    .ai-comparison-table th {
+        background: var(--bg-tertiary);
+        padding: 8px 12px;
+        text-align: left;
+        font-weight: 600;
+        color: var(--text-secondary);
+        border-bottom: 2px solid var(--border);
+    }
+    .ai-comparison-table td {
+        padding: 8px 12px;
+        border-bottom: 1px solid var(--border);
+        color: var(--text-primary);
+        vertical-align: top;
+    }
+    .ai-comparison-table tr:last-child td {
+        border-bottom: none;
+    }
+    .ai-diff-added {
+        display: inline-block;
+        background: #dcfce7;
+        color: #166534;
+        padding: 2px 8px;
+        border-radius: var(--radius-sm);
+        font-size: var(--font-size-xs);
+        margin: 2px;
+    }
+    .ai-diff-removed {
+        display: inline-block;
+        background: #fee2e2;
+        color: #991b1b;
+        padding: 2px 8px;
+        border-radius: var(--radius-sm);
+        font-size: var(--font-size-xs);
+        margin: 2px;
+        text-decoration: line-through;
+    }
 </style>
 
 <script>
@@ -188,4 +254,92 @@ document.addEventListener('DOMContentLoaded', function() {
     })
     .catch(function() {});
 });
+
+function toggleComparison() {
+    var body = document.getElementById('aiComparisonBody');
+    var arrow = document.getElementById('aiComparisonArrow');
+    if (body.style.display === 'none') {
+        body.style.display = 'block';
+        arrow.style.transform = 'rotate(90deg)';
+    } else {
+        body.style.display = 'none';
+        arrow.style.transform = '';
+    }
+}
+
+function renderAIComparison(data) {
+    var section = document.getElementById('aiComparison');
+    if (!data.previous) {
+        section.style.display = 'none';
+        return;
+    }
+
+    var prev = data.previous;
+    var prevActions = prev.actions || [];
+    var currActions = data.actions || [];
+    var priorityOrder = ['critical', 'high', 'medium', 'low'];
+
+    function countPriority(actions, p) {
+        return actions.filter(function(a) { return a.priority === p; }).length;
+    }
+
+    var rows = document.getElementById('aiComparisonRows');
+    var html = '';
+
+    // Summary row
+    var prevSummaryShort = (prev.summary || '').substring(0, 120) + ((prev.summary || '').length > 120 ? '...' : '');
+    var currSummaryShort = (data.summary || '').substring(0, 120) + ((data.summary || '').length > 120 ? '...' : '');
+    html += '<tr><td><strong>Podsumowanie</strong></td><td style="color: var(--text-secondary);">' + escapeHtml(prevSummaryShort) + '</td><td>' + escapeHtml(currSummaryShort) + '</td></tr>';
+
+    // Count row
+    html += '<tr><td><strong>Liczba akcji</strong></td><td>' + prevActions.length + '</td><td>' + currActions.length + '</td></tr>';
+
+    // Priority breakdown
+    priorityOrder.forEach(function(p) {
+        var labels = {critical: 'Krytyczne', high: 'Wysokie', medium: 'Srednie', low: 'Niskie'};
+        var pc = countPriority(prevActions, p);
+        var cc = countPriority(currActions, p);
+        if (pc > 0 || cc > 0) {
+            var diff = cc - pc;
+            var diffStr = diff > 0 ? ' <span style="color:#16a34a;">(+' + diff + ')</span>' : diff < 0 ? ' <span style="color:#dc2626;">(' + diff + ')</span>' : '';
+            html += '<tr><td>' + labels[p] + '</td><td>' + pc + '</td><td>' + cc + diffStr + '</td></tr>';
+        }
+    });
+
+    // Date row
+    if (prev.generated_at) {
+        var pd = new Date(prev.generated_at);
+        html += '<tr><td><strong>Data analizy</strong></td><td>' + pd.toLocaleDateString('pl-PL') + ' ' + pd.toLocaleTimeString('pl-PL', {hour:'2-digit', minute:'2-digit'}) + '</td><td>teraz</td></tr>';
+    }
+
+    rows.innerHTML = html;
+
+    // Diff: new/removed actions
+    var prevTitles = prevActions.map(function(a) { return a.title; });
+    var currTitles = currActions.map(function(a) { return a.title; });
+    var added = currTitles.filter(function(t) { return prevTitles.indexOf(t) === -1; });
+    var removed = prevTitles.filter(function(t) { return currTitles.indexOf(t) === -1; });
+
+    var diffEl = document.getElementById('aiComparisonDiff');
+    var diffHtml = '';
+    if (added.length > 0) {
+        diffHtml += '<div style="margin-bottom: var(--spacing-xs);"><strong style="font-size: var(--font-size-xs); color: var(--text-secondary);">Nowe akcje:</strong> ';
+        added.forEach(function(t) { diffHtml += '<span class="ai-diff-added">' + escapeHtml(t) + '</span>'; });
+        diffHtml += '</div>';
+    }
+    if (removed.length > 0) {
+        diffHtml += '<div><strong style="font-size: var(--font-size-xs); color: var(--text-secondary);">Usuniete akcje:</strong> ';
+        removed.forEach(function(t) { diffHtml += '<span class="ai-diff-removed">' + escapeHtml(t) + '</span>'; });
+        diffHtml += '</div>';
+    }
+    diffEl.innerHTML = diffHtml;
+
+    // Show date in header
+    if (prev.generated_at) {
+        var pd2 = new Date(prev.generated_at);
+        document.getElementById('aiComparisonDate').textContent = '(z ' + pd2.toLocaleDateString('pl-PL') + ')';
+    }
+
+    section.style.display = 'block';
+}
 </script>

templates/seo_audit.html

@@ -1099,6 +1099,9 @@ function renderAIResults(data) {
         actionsList.appendChild(card);
     });
 
+    // Render comparison with previous analysis if available
+    if (typeof renderAIComparison === 'function') renderAIComparison(data);
+
     results.style.display = 'block';
     document.getElementById('aiActionsSection').scrollIntoView({behavior: 'smooth', block: 'start'});
 

templates/social_audit.html

@@ -1499,6 +1499,9 @@ function renderAIResults(data) {
         actionsList.appendChild(card);
     });
 
+    // Render comparison with previous analysis if available
+    if (typeof renderAIComparison === 'function') renderAIComparison(data);
+
     results.style.display = 'block';
     document.getElementById('aiActionsSection').scrollIntoView({behavior: 'smooth', block: 'start'});
     window._aiActions = actions;