feat: Add rollup conditions concern for report builders

app/builders/v2/reports/concerns/rollup_conditions.rb

@@ -0,0 +1,79 @@
+module V2::Reports::Concerns::RollupConditions
+  COVERED_METRICS = {
+    avg_first_response_time: :first_response,
+    avg_resolution_time: :resolution_time,
+    reply_time: :reply_time,
+    resolutions_count: :resolutions_count,
+    bot_resolutions_count: :bot_resolutions_count,
+    bot_handoffs_count: :bot_handoffs_count
+  }.freeze
+
+  SUPPORTED_DIMENSIONS = %w[account agent inbox team].freeze
+
+  def use_rollup?
+    # Condition 0: reporting_timezone must be configured on account
+    return false if account.reporting_timezone.blank?
+
+    # Condition 1: Feature flag must be enabled
+    return false unless account.feature_enabled?('reporting_events_rollup')
+
+    # Condition 2: Metric must be covered by rollup
+    return false unless metric_covered?
+
+    # Condition 3: Not hourly granularity
+    return false if group_by == 'hour'
+
+    # Condition 4: Dimension must be supported
+    return false unless dimension_supported?
+
+    # Condition 5: Timezone must match
+    timezone_matches_account?
+  end
+
+  private
+
+  def metric_covered?
+    COVERED_METRICS.key?(params[:metric].to_sym)
+  end
+
+  def dimension_supported?
+    return true if params[:type].blank? # account dimension (no specific ID)
+
+    SUPPORTED_DIMENSIONS.include?(params[:type].to_s)
+  end
+
+  def timezone_matches_account?
+    return true if params[:timezone_offset].blank?
+
+    account_timezone = account.reporting_timezone
+    offset_in_seconds = params[:timezone_offset].to_f * 3600
+
+    # Find the timezone that matches the offset
+    matching_zone = ActiveSupport::TimeZone.all.find do |zone|
+      zone.now.utc_offset == offset_in_seconds
+    end
+
+    return false if matching_zone.blank?
+
+    # Convert account timezone to current UTC offset and compare
+    account_zone = ActiveSupport::TimeZone[account_timezone]
+    account_zone&.now&.utc_offset == offset_in_seconds
+  end
+
+  def metric_to_rollup_metric(metric)
+    COVERED_METRICS[metric.to_sym]
+  end
+
+  def dimension_type_to_rollup
+    case params[:type].to_s
+    when 'account'
+      :account
+    when 'agent'
+      :agent
+    when 'inbox'
+      :inbox
+    when 'team'
+      :team
+    end
+  end
+end