module Ops
  class LogScanner
    def initialize(matcher: LogPatternMatcher.new)
      @matcher = matcher
    end

    def ingest(text)
      matches = @matcher.scan(text)
      matches.each { |match| record_match(match) }
      matches.size
    end

    private

    def record_match(match)
      Ops::IncidentRecorder.record(
        kind: "log_pattern",
        severity: match.severity,
        title: "Log: #{match.name}",
        message: match.line.truncate(500),
        metadata: { "pattern" => match.name, "sample" => match.line },
        fingerprint: "log_pattern:#{match.name}"
      )
    end
  end
end