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

# sweep-store-worktrees (intent 178, D2) -- ONE-TIME cleanup of the store
# worktrees Plastic used to provision under `~/.plastic/.worktrees/` before
# intent 178 retired the mechanism. Dry-run by default; nothing is ever
# removed without an explicit --apply, run only after reviewing the dry-run
# report (D2: "present a dry-run for owner review before applying").
#
# Usage:
#   scripts/sweep-store-worktrees              # dry run (default, safe)
#   scripts/sweep-store-worktrees --apply       # actually remove REMOVE candidates
#   scripts/sweep-store-worktrees --home <dir>  # override plastic_home (tests/CI only)

require_relative "lib/worktree_sweep"

def parse_args(argv)
  opts = { apply: false, home: Dir.home }
  i = 0
  while i < argv.length
    case argv[i]
    when "--apply" then opts[:apply] = true
    when "--home"  then opts[:home] = argv[i += 1]
    else
      warn "sweep-store-worktrees: unknown argument #{argv[i].inspect}"
      exit 1
    end
    i += 1
  end
  opts
end

def main(argv)
  opts = parse_args(argv)
  plastic_home = File.expand_path(File.join(opts[:home], ".plastic"))
  unless Dir.exist?(File.join(plastic_home, ".worktrees"))
    puts "No #{File.join(plastic_home, '.worktrees')} directory; nothing to sweep."
    exit 0
  end

  candidates = WorktreeSweep.candidates(plastic_home: plastic_home)
  puts WorktreeSweep.dry_run_report(candidates)

  if opts[:apply]
    removed = WorktreeSweep.apply!(candidates, plastic_home: plastic_home)
    puts ""
    puts "Removed #{removed.length} worktree(s):"
    removed.each { |c| puts "  #{c.name}" }
  end
end

main(ARGV) if $PROGRAM_NAME == __FILE__