module EhcUrl

# File lib/ehc_url.rb, line 46
def host_from_url(url)
  host = URI.parse(url.to_s).host.to_s
  host.sub(/\Awww\./, "")
rescue URI::InvalidURIError
  ""
end

# File lib/ehc_url.rb, line 28
def parse_command(text)
  stripped = text.to_s.strip
  return { error: usage_message } if stripped.empty?

  unless (match = stripped.match(%r{\A(https?://\S+)(?:\s+(.+))?\z}i))
    return { error: usage_message }
  end

  url = UrlLink.normalize_url(match[1])
  return { error: usage_message } unless UrlLink.valid_url?(url)
  return { error: unsafe_message } unless safe_url?(url)

  focus = match[2]&.strip
  focus = nil if focus&.empty?

  { url: url, focus: focus, host: host_from_url(url) }
end

# File lib/ehc_url.rb, line 24
def safe_url?(url)
  AiUrlContext.safe_url?(url)
end

# File lib/ehc_url.rb, line 20
def unsafe_message
  "That URL is not allowed — use http(s) public targets only."
end

# File lib/ehc_url.rb, line 16
def usage_message
  "Usage: !ehc <url|#|ip|nick> [focus] | !ehc toolkit | !ehc issue <n> — CTF recon (voice+) or server harden (admin+)"
end