'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.buildQuery = buildQuery;

var _lodash = require('lodash');

var _lodash2 = _interopRequireDefault(_lodash);

var _dfunc = require('./dfunc');

var _dfunc2 = _interopRequireDefault(_dfunc);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function buildQuery(target, adhocFilters) {
  var aggregation = target.aggregation,
      metric = target.metric,
      tags = target.tags,
      functions = target.functions;

  var query = aggregation + ':' + metric;

  var functionInstances = getFunctionInstances(functions);

  if (tags && tags.length || adhocFilters && adhocFilters.length) {
    query += '{';

    if (tags && tags.length) {
      query += tags.join(',');
    }

    if (adhocFilters && adhocFilters.length) {
      var adhocTags = buildAdHocFilterString(adhocFilters);
      if (tags && tags.length) {
        query += ',';
      }
      query += adhocTags;
    }

    query += '}';
  } else {
    query += '{*}';
  }

  if (target.as) {
    query += '.' + target.as + '()';
  }

  var groupedFuncs = _lodash2.default.groupBy(functionInstances, function (func) {
    if (func.def.append) {
      return 'appends';
    } else {
      return 'wraps';
    }
  });

  _lodash2.default.each(groupedFuncs.appends, function (func) {
    query += '.' + func.render();
  });

  _lodash2.default.each(groupedFuncs.wraps, function (func) {
    query = func.render(query);
  });

  return query;
}

function getFunctionInstances(functions) {
  return _lodash2.default.map(functions, function (func) {
    var f = _dfunc2.default.createFuncInstance(func.funcDef, { withDefaultParams: false });
    f.params = func.params.slice();
    return f;
  });
}

function buildAdHocFilterString(adhocFilters) {
  return adhocFilters.map(function (filter) {
    return filter.key + ':' + filter.value;
  }).join(',');
}
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