#!/usr/bin/env ruby
# encoding: UTF-8
# frozen_string_literal: true

# skill-lint: deterministic CLI over SkillLint (intent 85b).
#
# Runs the five structural skill checks (body-budget, frontmatter-validity,
# bare-pointer, orphan-files, references-depth) over a directory of Agent
# Skills and reports every violation. Mirrors `scripts/validate-intent`'s
# CLI-over-lib shape and exit-code contract.
#
# Usage:
#   skill-lint [--skills-dir <path>]
#
# Exit codes: 0 (clean), 1 (violations found; reported on stderr), 2 (usage).
# --skills-dir defaults to the repo skills/ directory next to this script.

require_relative "lib/skill_lint"

def resolve_skills_dir(args)
  if (i = args.index("--skills-dir"))
    args[i + 1]
  else
    File.expand_path("../skills", __dir__)
  end
end

if ARGV.any? { |a| a.start_with?("--") && a != "--skills-dir" }
  warn "usage: skill-lint [--skills-dir <path>]"
  exit 2
end

if ARGV.include?("--skills-dir") && ARGV[ARGV.index("--skills-dir") + 1].nil?
  warn "usage: skill-lint [--skills-dir <path>]"
  exit 2
end

dir = File.expand_path(resolve_skills_dir(ARGV))
result = SkillLint.new(skills_dir: dir).run

if result.ok?
  puts "OK: #{dir}"
  exit 0
end

warn "VIOLATIONS: #{dir}"
result.violations.each do |v|
  warn "#{v[:check]} #{v[:skill]} #{v[:file]}:#{v[:line].nil? ? "-" : v[:line]} #{v[:message]}"
end
exit 1