Class: Profiler::MCP::Tools::QueryTestProfiles

Inherits:
Object
  • Object
show all
Defined in:
lib/profiler/mcp/tools/query_test_profiles.rb

Constant Summary collapse

ALL_FIELDS = 
%w[time test_name status duration queries n1 token].freeze

Class Method Summary collapse

Class Method Details

.call(params) ⇒ Object 



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# File 'lib/profiler/mcp/tools/query_test_profiles.rb', line 11

def self.call(params)
  limit = params["limit"]&.to_i || 20
  fetch_size = [limit * 5, 500].min
  storage = MCP::SlaveSupport.resolve_storage(params)
  profiles = storage.list(limit: fetch_size)

  tests = profiles.select { |p| p.profile_type == "test" }

  if params["test_name"]
    term = params["test_name"].downcase
    tests = tests.select do |p|
      test_data = p.collector_data("test")
      (test_data&.dig("test_name") || p.path).to_s.downcase.include?(term)
    end
  end

  if params["status"]
    tests = tests.select do |p|
      test_data = p.collector_data("test")
      test_data && test_data["status"] == params["status"]
    end
  end

  if params["min_duration"]
    min_ms = params["min_duration"].to_f
    tests = tests.select { |p| p.duration >= min_ms }
  end

  if params["cursor"]
    cutoff = Time.parse(params["cursor"]) rescue nil
    tests = tests.select { |p| p.started_at < cutoff } if cutoff
  end

  tests = tests.first(limit)
  fields = params["fields"]&.map(&:to_s)

  [{ type: "text", text: format_tests_table(tests, fields, limit) }]
end

.count_n1_patterns(queries) ⇒ Object 



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# File 'lib/profiler/mcp/tools/query_test_profiles.rb', line 95

def self.count_n1_patterns(queries)
  return 0 if queries.size < 3

  queries.group_by { |q| normalize_sql(q["sql"].to_s) }
         .count { |_, qs| qs.size >= 3 }
end

.format_tests_table(tests, fields, limit) ⇒ Object 



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# File 'lib/profiler/mcp/tools/query_test_profiles.rb', line 52

def self.format_tests_table(tests, fields, limit)
  return "No test profiles found matching the criteria." if tests.empty?

  fields ||= ALL_FIELDS
  fields = fields & ALL_FIELDS

  lines = []
  lines << "# Test Profiles\n"
  lines << "Found #{tests.size} tests:\n"

  header = fields.map { |f| f.split("_").map(&:capitalize).join(" ") }.join(" | ")
  separator = fields.map { "------" }.join("|")
  lines << "| #{header} |"
  lines << "|#{separator}|"

  tests.each do |profile|
    test_data = profile.collector_data("test") || {}
    db_data   = profile.collector_data("database") || {}
    queries   = db_data["queries"] || []
    n1_count  = count_n1_patterns(queries)

    row = fields.map do |f|
      case f
      when "time"      then profile.started_at&.strftime("%H:%M:%S") || "-"
      when "test_name" then (test_data["test_name"] || profile.path).to_s.then { |n| n.length > 60 ? n[0, 57] + "..." : n }
      when "status"    then test_data["status"] || "-"
      when "duration"  then profile.duration ? "#{profile.duration.round(2)}ms" : "-"
      when "queries"   then db_data["total_queries"].to_i.to_s
      when "n1"        then n1_count > 0 ? "⚠ #{n1_count}" : "✓"
      when "token"     then profile.token.to_s
      end
    end
    lines << "| #{row.join(' | ')} |"
  end

  if tests.size == limit
    lines << ""
    lines << "*Next cursor: #{tests.last.started_at.iso8601}*"
  end

  lines.join("\n")
end

.normalize_sql(sql) ⇒ Object 



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# File 'lib/profiler/mcp/tools/query_test_profiles.rb', line 102

def self.normalize_sql(sql)
  sql.gsub(/\$\d+/, "?")
     .gsub(/\b\d+\b/, "?")
     .gsub(/'[^']*'/, "?")
     .gsub(/"[^"]*"/, "?")
     .strip
end