Class: Migflow::Services::RiskScorer

Inherits:
Object
  • Object
show all
Defined in:
lib/migflow/services/risk_scorer.rb

Constant Summary collapse

RULE_WEIGHTS = 
{
  "dangerous_migration_rule" => 40,
  "missing_index_rule" => 15,
  "missing_foreign_key_rule" => 20,
  "string_without_limit_rule" => 5,
  "null_column_without_default_rule" => 20,
  "missing_timestamps_rule" => 5
}.freeze
LEVELS = 
[
  { min: 71, max: 100, level: "high" },
  { min: 31, max: 70,  level: "medium" },
  { min: 1,  max: 30,  level: "low" },
  { min: 0,  max: 0,   level: "safe" }
].freeze

Instance Method Summary collapse

Instance Method Details

#call(warnings) ⇒ Object 



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# File 'lib/migflow/services/risk_scorer.rb', line 22

def call(warnings)
  factors = warnings.filter_map do |w|
    weight = RULE_WEIGHTS[w.rule]
    next unless weight

    { rule: w.rule, message: w.message, weight: weight }
  end

  raw = factors.sum { |f| f[:weight] }
  score = [raw, 100].min
  level = LEVELS.find { |l| score.between?(l[:min], l[:max]) }&.fetch(:level, "safe")

  { score: score, level: level, factors: factors }
end