Class: SmartCsvImport::StabilityReport

Inherits:
Object
  • Object
show all
Defined in:
lib/smart_csv_import/stability_report.rb

Constant Summary collapse

STABILITY_THRESHOLD = 
0.9
ANALYZABLE_STATUSES = 
%w[completed partial_failure].freeze

Instance Method Summary collapse

Constructor Details

#initialize(import_type:, lookback: 20) ⇒ StabilityReport

Returns a new instance of StabilityReport.



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# File 'lib/smart_csv_import/stability_report.rb', line 12

def initialize(import_type:, lookback: 20)
  @import_type = import_type
  @lookback = lookback
end

Instance Method Details

#analyze ⇒ Object 



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# File 'lib/smart_csv_import/stability_report.rb', line 17

def analyze
  imports = fetch_imports
  header_tallies = tally_header_mappings(imports)
  total = imports.length

  stable_fields = []
  unstable_fields = []

  header_tallies.each do |csv_header, target_counts|
    top_target, top_count = target_counts.max_by { |_, count| count }
    consistency_rate = (top_count.to_f / total).round(4)

    if consistency_rate >= STABILITY_THRESHOLD
      stable_fields << StableField.new(
        csv_header: csv_header,
        target_field: top_target.to_sym,
        strategy: nil,
        consistency_rate: consistency_rate
      )
    else
      resolutions = target_counts.map { |target, count| { target: target, count: count } }
      unstable_fields << UnstableField.new(
        csv_header: csv_header,
        resolutions: resolutions
      )
    end
  end

  StabilityAnalysis.new(
    import_type: @import_type,
    imports_analyzed: total,
    stable_fields: stable_fields,
    unstable_fields: unstable_fields
  )
end

#summary ⇒ Object 



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# File 'lib/smart_csv_import/stability_report.rb', line 53

def summary
  analysis = analyze

  if analysis.imports_analyzed.zero?
    return "No completed imports found for #{@import_type}."
  end

  lines = ["Stability report for #{@import_type} (#{analysis.imports_analyzed} imports analyzed):"]

  if analysis.stable_fields.any?
    lines << "  Stable fields (#{analysis.stable_fields.length}):"
    analysis.stable_fields.each do |field|
      lines << "    - #{field.csv_header} → #{field.target_field} (#{(field.consistency_rate * 100).round(1)}% consistent)"
    end
  end

  if analysis.unstable_fields.any?
    lines << "  Unstable fields (#{analysis.unstable_fields.length}):"
    analysis.unstable_fields.each do |field|
      resolutions_desc = field.resolutions.map { |r| "#{r[:target]}(#{r[:count]})" }.join(", ")
      lines << "    - #{field.csv_header}: #{resolutions_desc}"
    end
  end

  lines.join("\n")
end