#!/usr/bin/env ruby
# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
# License: GPLv3 or later (https://www.gnu.org/licenses/gpl-3.0.txt)
require 'dtas/edit_client'
include DTAS::EditClient
c = client_socket
sources = c.req('source ls') || "(unknown)"
usage = "Usage: #{DTAS_PROGNAME} [-n|--dry-run][-V|--verbose] SOURCENAME\n" \
        "available SOURCENAME values: #{sources}"

# use a real option parser if we have anything more complex
dry_run = !!(ARGV.delete('-n') || ARGV.delete('--dry-run'))
verbose = !!(ARGV.delete('-V') || ARGV.delete('--verbose'))

ARGV.size <= 1 or abort usage
name = ARGV[0] || "sox"

st_in = $stdin.stat

buf = c.req(%W(source cat #{name}))
abort(buf) if buf =~ /\AERR/
orig = YAML.load(buf)

if st_in.file? || st_in.pipe?
  tmp = $stdin
else
  tmp = tmpyaml
  tmp.write(buf << DTAS_DISCLAIMER)
  cmd = "#{editor} #{tmp.path}"
  system(cmd) or abort "#{cmd} failed: #$?"
  tmp.rewind
end

source = YAML.load(tmp.read)
cmd = %W(source ed #{name})
update_cmd_env(cmd, orig, source)

# nil OK
%w(tryorder command).each do |field|
  cmd << "#{field}=#{source[field]}"
end

if verbose || dry_run
  warn Shellwords.join(cmd)
end

c.req_ok(cmd) unless dry_run