var fs = require('fs');

exports.FILES = [
  require.resolve('../lib/utils.js'),
  require.resolve('../lib/ast.js'),
  require.resolve('../lib/transform.js'),
  require.resolve('../lib/parse.js'),
  require.resolve('../lib/scope.js'),
  require.resolve('../lib/compress.js'),
  require.resolve('../lib/output.js'),
  require.resolve('../lib/sourcemap.js'),
  require.resolve('../lib/mozilla-ast.js'),
  require.resolve('../lib/propmangle.js'),
  require.resolve('../lib/minify.js'),
  require.resolve('./exports.js'),
];

new Function(
  'domprops',
  'exports',
  (function () {
    var code = exports.FILES.map(function (file) {
      return fs.readFileSync(file, 'utf8');
    });
    code.push('exports.describe_ast = ' + describe_ast.toString());
    return code.join('\n\n');
  })()
)(require('./domprops.json'), exports);

function to_comment(value) {
  if (typeof value != 'string')
    value = JSON.stringify(
      value,
      function (key, value) {
        return typeof value == 'function' ? '<[ ' + value + ' ]>' : value;
      },
      2
    );
  return '// ' + value.replace(/\n/g, '\n// ');
}

if (+process.env['UGLIFY_BUG_REPORT'])
  exports.minify = function (files, options) {
    if (typeof options == 'undefined') options = '<<undefined>>';
    var code = ['// UGLIFY_BUG_REPORT', to_comment(options)];
    if (typeof files == 'string') {
      code.push('');
      code.push(
        '//-------------------------------------------------------------'
      );
      code.push('// INPUT CODE', files);
    } else
      for (var name in files) {
        code.push('');
        code.push(
          '//-------------------------------------------------------------'
        );
        code.push(to_comment(name), files[name]);
      }
    if (options.sourceMap && options.sourceMap.url) {
      code.push('');
      code.push(
        '//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IiJ9'
      );
    }
    var result = { code: code.join('\n') };
    if (options.sourceMap)
      result.map = '{"version":3,"sources":[],"names":[],"mappings":""}';
    return result;
  };

function describe_ast() {
  var out = OutputStream({ beautify: true });
  doitem(AST_Node);
  return out.get() + '\n';

  function doitem(ctor) {
    out.print('AST_' + ctor.TYPE);
    var props = ctor.SELF_PROPS.filter(function (prop) {
      return !/^\$/.test(prop);
    });
    if (props.length > 0) {
      out.space();
      out.with_parens(function () {
        props.forEach(function (prop, i) {
          if (i) out.space();
          out.print(prop);
        });
      });
    }
    if (ctor.documentation) {
      out.space();
      out.print_string(ctor.documentation);
    }
    if (ctor.SUBCLASSES.length > 0) {
      out.space();
      out.with_block(function () {
        ctor.SUBCLASSES.sort(function (a, b) {
          return a.TYPE < b.TYPE ? -1 : 1;
        }).forEach(function (ctor, i) {
          out.indent();
          doitem(ctor);
          out.newline();
        });
      });
    }
  }
}

function infer_options(options) {
  var result = exports.minify('', options);
  return result.error && result.error.defs;
}

exports.default_options = function (component) {
  if (component) {
    var options = { module: false };
    options[component] = { 0: 0 };
    return infer_options(options);
  }
  var defs = infer_options({ 0: 0 });
  Object.keys(defs).forEach(function (component) {
    var options = { module: false };
    options[component] = { 0: 0 };
    if ((options = infer_options(options))) {
      defs[component] = options;
    }
  });
  return defs;
};