Module: LlmCostTracker::Ledger::CallMetrics

Included in:
Call
Defined in:
app/models/llm_cost_tracker/ledger/call_metrics.rb

Instance Method Summary collapse

Instance Method Details

#average_latency_ms ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 38

def average_latency_ms
  average(:latency_ms)&.to_f
end

#cost_by_model(limit: nil) ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 16

def cost_by_model(limit: nil)
  cost_by_column(:model, limit: limit)
end

#cost_by_provider(limit: nil) ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 20

def cost_by_provider(limit: nil)
  cost_by_column(:provider, limit: limit)
end

#cost_by_tag(key, limit: nil) ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 28

def cost_by_tag(key, limit: nil)
  expression = tag_value_expression(key)
  label_expression = "COALESCE(NULLIF(#{expression}, ''), #{connection.quote('(untagged)')})"
  relation = select("#{label_expression} AS name, COALESCE(SUM(total_cost), 0) AS total_cost")
             .group(Arel.sql(label_expression))
             .order(Arel.sql("COALESCE(SUM(total_cost), 0) DESC"))
  relation = relation.limit(limit) if limit
  relation
end

#group_by_tag(key) ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 24

def group_by_tag(key)
  group(Arel.sql(tag_value_expression(key)))
end

#latency_by_model ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 42

def latency_by_model
  group(:model).average(:latency_ms).transform_values(&:to_f)
end

#latency_by_provider ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 46

def latency_by_provider
  group(:provider).average(:latency_ms).transform_values(&:to_f)
end

#tag_value_expression(key, table_name: quoted_table_name) ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 50

def tag_value_expression(key, table_name: quoted_table_name)
  Ledger::Tags::Sql.value_expression(self, key, table_name: table_name)
end

#total_cost ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 8

def total_cost
  sum(:total_cost).to_f
end

#total_tokens ⇒ Object 



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# File 'app/models/llm_cost_tracker/ledger/call_metrics.rb', line 12

def total_tokens
  sum(:total_tokens).to_i
end