import { Assert, UnitTest } from '@ephox/bedrock-client';
import { Arr, Unicode } from '@ephox/katamari';

import * as Pattern from 'ephox/polaris/api/Pattern';
import * as Search from 'ephox/polaris/api/Search';
import * as Safe from 'ephox/polaris/pattern/Safe';
import { PRegExp } from 'ephox/polaris/pattern/Types';

UnitTest.test('api.Search.findall (using api.Pattern)', () => {
  const checkAll = (expected: [number, number][], input: string, pattern: PRegExp) => {
    const actual = Search.findall(input, pattern);
    Assert.eq('', expected.length, actual.length);
    Arr.each(expected, (exp, i) => {
      Assert.eq('', exp[0], actual[i].start);
      Assert.eq('', exp[1], actual[i].finish);
    });
  };
  const testData = (pattern: PRegExp, name: string) => ({
    pattern,
    name
  });

  const checkMany = (expected: [number, number, string][], text: string, targets: ReturnType<typeof testData>[]) => {
    const actual = Search.findmany(text, targets);
    Assert.eq('', expected.length, actual.length);
    Arr.each(expected, (exp, i) => {
      Assert.eq('', exp[0], actual[i].start);
      Assert.eq('', exp[1], actual[i].finish);
      Assert.eq('', exp[2], actual[i].name);
    });
  };

  checkAll([], 'eskimo', Pattern.unsafetoken('hi'));
  checkAll([[ 1, 7 ]], ' cattle', Pattern.unsafetoken('cattle'));
  checkAll([], 'acattle', Pattern.unsafeword('cattle'));
  checkAll([[ 1, 7 ]], ' cattle', Pattern.unsafeword('cattle'));
  checkAll([], Unicode.zeroWidth + 'dog ', Pattern.safeword('dog'));

  checkAll([[ 3, 7 ], [ 10, 14 ]], `no it's i it's done.`, Pattern.unsafetoken(`it's`));
  checkAll([[ 0, 12 ]], `catastrophe'`, Pattern.unsafetoken(`catastrophe'`));

  checkAll([[ 0, 3 ]], 'sre', Pattern.unsafeword('sre'));
  checkAll([[ 0, 3 ]], 'sre ', Pattern.unsafeword('sre'));
  checkAll([[ 1, 4 ]], ' sre', Pattern.unsafeword('sre'));
  checkAll([[ 1, 4 ]], ' sre ', Pattern.unsafeword('sre'));
  checkAll([[ 0, 3 ], [ 4, 7 ]], 'sre sre', Pattern.unsafeword('sre'));
  checkAll([[ 1, 4 ], [ 5, 8 ]], ' sre sre', Pattern.unsafeword('sre'));
  checkAll([[ 1, 4 ], [ 5, 8 ], [ 9, 12 ]], ' sre sre sre', Pattern.unsafeword('sre'));
  checkAll([[ 0, 3 ], [ 4, 7 ], [ 8, 11 ]], 'sre sre sre ', Pattern.unsafeword('sre'));
  checkAll([[ 1, 4 ], [ 5, 8 ], [ 9, 12 ]], ' sre sre sre ', Pattern.unsafeword('sre'));

  checkAll([[ 'this '.length, 'this e'.length + Unicode.zeroWidth.length + 'nds'.length ]], 'this e' + Unicode.zeroWidth + 'nds here', Pattern.unsafeword('e' + Unicode.zeroWidth + 'nds'));

  const prefix = Safe.sanitise('[');
  const suffix = Safe.sanitise(']');
  checkAll([[ 1, 5 ]], ' [wo] and more', Pattern.unsafetoken(prefix + '[^' + suffix + ']*' + suffix));

  checkMany([], '', []);
  checkMany([
    [ 1, 3, 'alpha' ]
  ], ' aa bb cc', [
    testData(Pattern.safeword('aa'), 'alpha')
  ]);

  checkMany([
    [ 0, 2, 'alpha' ],
    [ 3, 6, 'beta' ],
    [ 8, 18, 'gamma' ]
  ], 'aa bbb  abcdefghij', [
    testData(Pattern.safeword('bbb'), 'beta'),
    testData(Pattern.safeword('abcdefghij'), 'gamma'),
    testData(Pattern.safeword('aa'), 'alpha'),
    testData(Pattern.safeword('not-there'), 'delta')
  ]);
});