1 files changed, 65 insertions, 0 deletions
diff --git a/app/models/error_tracking/error_event.rb b/app/models/error_tracking/error_event.rb
index ed14a1bce41..4de13de7e2e 100644
--- a/app/models/error_tracking/error_event.rb
+++ b/app/models/error_tracking/error_event.rb
@@ -8,4 +8,69 @@ class ErrorTracking::ErrorEvent < ApplicationRecord
   validates :error, presence: true
   validates :description, presence: true
   validates :occurred_at, presence: true
+
+  def stacktrace
+    @stacktrace ||= build_stacktrace
+  end
+
+  # For compatibility with sentry integration
+  def to_sentry_error_event
+    Gitlab::ErrorTracking::ErrorEvent.new(
+      issue_id: error_id,
+      date_received: occurred_at,
+      stack_trace_entries: stacktrace
+    )
+  end
+
+  private
+
+  def build_stacktrace
+    raw_stacktrace = find_stacktrace_from_payload
+
+    return [] unless raw_stacktrace
+
+    raw_stacktrace.map do |entry|
+      {
+        'lineNo' => entry['lineno'],
+        'context' => build_stacktrace_context(entry),
+        'filename' => entry['filename'],
+        'function' => entry['function'],
+        'colNo' => 0 # we don't support colNo yet.
+      }
+    end
+  end
+
+  def find_stacktrace_from_payload
+    exception_entry = payload.dig('exception')
+
+    if exception_entry
+      exception_values = exception_entry.dig('values')
+      stack_trace_entry = exception_values&.detect { |h| h['stacktrace'].present? }
+      stack_trace_entry&.dig('stacktrace', 'frames')
+    end
+  end
+
+  def build_stacktrace_context(entry)
+    context = []
+    error_line = entry['context_line']
+    error_line_no = entry['lineno']
+    pre_context = entry['pre_context']
+    post_context = entry['post_context']
+
+    context += lines_with_position(pre_context, error_line_no - pre_context.size)
+    context += lines_with_position([error_line], error_line_no)
+    context += lines_with_position(post_context, error_line_no + 1)
+
+    context.reject(&:blank?)
+  end
+
+  def lines_with_position(lines, position)
+    return [] if lines.blank?
+
+    lines.map.with_index do |line, index|
+      next unless line
+
+      [position + index, line]
+    end
+  end
 end