/*
 * Copyright (C) Sapphirecode - All Rights Reserved
 * This file is part of graphviz-builder which is released under MIT.
 * See file 'LICENSE' for full license details.
 * Created by Timo Hocker <timo@scode.ovh>, June 2020
 */

import test from 'ava';
import { GraphStream, Color } from '../lib/index';

const simple = `graph foo {
}

`;

const complex = `digraph foo {
  subgraph cluster_foo_baz {
    color = #ff0000
    style = bold

    subgraph cluster_foo_baz_nested {
      color = #808080
      style = dotted

      subgraph cluster_foo_baz_nested_unnamed {
        color = #808080
        style = dotted

      }

    }

    foo_baz_asd [label = "asd"]
    foo_baz_test [style = "bold", color = "#808080"]
  }

  foo_baz [label = "baz"]
  foo_foo [label = "foo"]
  foo_foo -> foo_baz
  foo_foo -> foo_baz_asd [label = "edge attr"]
}

`;

test ('stream graph', (t) => new Promise ((resolve) => {
  let output = '';
  const stream = (new GraphStream);
  stream.on ('data', (data) => {
    output += data;
  });
  stream.on ('end', () => {
    t.is (output, simple);
    resolve ();
  });
  stream.create_graph ('foo', 'u');
  stream.end_graph ();
  stream.end ();
}));

// eslint-disable-next-line max-statements
test ('complex stream graph', (t) => new Promise ((resolve) => {
  let output = '';
  const stream = (new GraphStream);
  stream.on ('data', (data) => {
    output += data;
  });
  stream.on ('end', () => {
    t.is (output, complex);
    resolve ();
  });
  stream.create_graph ('foo', 'd');
  stream.create_graph ('baz');
  stream.attributes ({ color: Color.red, style: 'bold' });
  stream.create_graph ('nested');
  stream.attributes ({ color: Color.gray, style: 'dotted' });
  stream.create_graph ('unnamed');
  stream.attributes ({ color: Color.gray, style: 'dotted' });
  stream.end_graph ();
  stream.end_graph ();
  const asd = stream.create_node ('asd');
  stream.attributes ({ label: 'asd' });
  stream.end_node ();
  stream.create_node ('test');
  stream.attributes ({ style: 'bold', color: Color.gray });
  stream.end_graph ();
  const baz = stream.create_node ('baz');
  stream.attributes ({ label: 'baz' });
  const foo = stream.create_node ('foo');
  stream.attributes ({ label: 'foo' });
  stream.create_edge (foo, baz);
  stream.create_edge (foo, asd);
  stream.attributes ({ label: 'edge attr' });
  stream.end_graph ();
  stream.end ();
}));