#!/usr/bin/env ruby
# -*- coding: utf-8 -*-
require 'json'
myname = File.basename($0)

if !ARGV[0] then
  STDERR.puts "uMap inline img {{img-URL}} notation to SakataMap schema"
  STDERR.puts "Usage: #{myname} [Options] geojsonFile(s)"
  STDERR.puts ""
  STDERR.puts "The `orig-skt.geojson' file overwritten from `orig.geojson'."
end

for f in ARGV
  begin
    j = JSON.load(open(f){|j|j.read})
    next unless j["features"].length
  rescue
    STDERR.puts "Failed to load [#{f}], skipped"
    next
  end
  skt = File.basename(f, ".geojson") + "-skt.geojson"
  for feat in j["features"]
    next unless feat["type"] == "Feature"
    if (prop = feat["properties"]) then
      if (desc = prop["description"]) then
        images = []
        while /{{(\S+)}}/ =~ desc
          images << $1
          desc.sub!(/{{\S+?}}/, "")
          desc.chomp!
        end
        if images[0] then
          prop["画像"] = images.join(";")
        end
      end
    end
  end
  open(skt, "w") {|n| n.write(JSON.pretty_generate(j))} and
    STDERR.puts "Output to [#{skt}]"
end