var generate = require('../../../query/suggest');

module.exports.tests = {};

module.exports.tests.interface = function(test, common) {
  test('valid interface', function(t) {
    t.equal(typeof generate, 'function', 'valid function');
    t.end();
  });
};

module.exports.tests.query = function(test, common) {
  test('valid query', function(t) {
    var query = generate({
      input: 'test', size: 10,
      lat: 0, lon: 0, zoom:1,
      layers: ['test']
    });
    var expected = {
      pelias: {
        text: 'test',
        completion: {
          field: 'suggest',
          size: 10,
          context: {
            dataset: [ 'test' ],
            location: {
              precision: 1,
              value: [ 0, 0 ]
            }
          }
        }
      }
    };
    t.deepEqual(query, expected, 'valid suggest query');
    t.end();
  });
};

module.exports.tests.precision = function(test, common) {
  var test_cases = [
    {zoom:1, precision:1},
    {zoom:2, precision:1},
    {zoom:3, precision:1},
    {zoom:4, precision:2},
    {zoom:5, precision:2},
    {zoom:6, precision:3},
    {zoom:7, precision:3},
    {zoom:8, precision:3},
    {zoom:9, precision:3},
    {zoom:10, precision:4},
    {zoom:11, precision:4},
    {zoom:12, precision:4},
    {zoom:13, precision:4},
    {zoom:14, precision:4},
    {zoom:15, precision:4},
    {zoom:16, precision:5},
    {zoom:17, precision:5},
    {zoom:18, precision:5},
    {zoom:19, precision:5},
    {zoom:'', precision:1},
    {zoom:null, precision:1},
    {zoom:undefined, precision:1}
  ];
  test('valid precision', function(t) {
    test_cases.forEach( function( test_case ){
      var query = generate({
        input: 'test', size: 10,
        lat: 0, lon: 0, zoom:test_case.zoom,
        layers: ['test']
      });
      var expected = {
        pelias: {
          text: 'test',
          completion: {
            field: 'suggest',
            size: 10,
            context: {
              dataset: [ 'test' ],
              location: {
                precision: test_case.precision,
                value: [ 0, 0 ]
              }
            }
          }
        }
      };
      t.deepEqual(query, expected, 'valid suggest query for zoom = ' + test_case.zoom);
    });
    t.end();
  });
};

module.exports.all = function (tape, common) {

  function test(name, testFunction) {
    return tape('suggest query ' + name, testFunction);
  }

  for( var testCase in module.exports.tests ){
    module.exports.tests[testCase](test, common);
  }
};