@trap_stevo/star-vault/dist/cjs/HUDControllers/QueryEngine.js

Unleash the future of data management with the ultimate platform for secure, scalable, and dynamic data operations. Power the next generation of applications by combining advanced encryption, revolutionary real-time querying, and seamless synchronization

"use strict";

function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t["return"] || t["return"](); } finally { if (u) throw o; } } }; }
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function ownKeys(e, r) { var t = Object.keys(e); if (Object.getOwnPropertySymbols) { var o = Object.getOwnPropertySymbols(e); r && (o = o.filter(function (r) { return Object.getOwnPropertyDescriptor(e, r).enumerable; })), t.push.apply(t, o); } return t; }
function _objectSpread(e) { for (var r = 1; r < arguments.length; r++) { var t = null != arguments[r] ? arguments[r] : {}; r % 2 ? ownKeys(Object(t), !0).forEach(function (r) { _defineProperty(e, r, t[r]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) { Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r)); }); } return e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var EngineUtilityManager = require("../HUDManagers/EngineUtilityManager");
var QueryEngine = /*#__PURE__*/function () {
  function QueryEngine(storage, security) {
    _classCallCheck(this, QueryEngine);
    this.security = security;
    this.storage = storage;
    this.sortCriteria = [];
    this.filters = [];
    this.data = [];
    this.selectedFields = null;
    this.limitValue = null;
    this.offsetValue = 0;
    this.collections = [];
    this.callbackFn = null;
  }
  return _createClass(QueryEngine, [{
    key: "from",
    value: function from(collections) {
      this.collections = Array.isArray(collections) ? collections : [collections];
      return this;
    }
  }, {
    key: "where",
    value: function where(fieldOrObject, value) {
      if (_typeof(fieldOrObject) === "object" && value === undefined) {
        this.filters.push(fieldOrObject);
      } else if (typeof fieldOrObject === "string") {
        if (Array.isArray(value)) {
          this.filters.push(_defineProperty({}, fieldOrObject, {
            $in: value
          }));
        } else if (_typeof(value) === "object" && !Array.isArray(value)) {
          this.filters.push(_defineProperty({}, fieldOrObject, value));
        } else {
          this.filters.push(_defineProperty({}, fieldOrObject, {
            $eq: value
          }));
        }
      }
      return this;
    }
  }, {
    key: "search",
    value: function search(field, text) {
      var regex = new RegExp(text, "i");
      this.filters.push(_defineProperty({}, field, {
        $regex: regex
      }));
      return this;
    }
  }, {
    key: "recent",
    value: function recent(field, duration) {
      var now = Date.now();
      var past = now - EngineUtilityManager.convertDuration(duration);
      this.filters.push(_defineProperty({}, field, {
        $gte: past
      }));
      return this;
    }
  }, {
    key: "near",
    value: function near(field, center, radius) {
      this.filters.push(_defineProperty({}, field, {
        $geoWithin: {
          center: center,
          radius: radius
        }
      }));
      return this;
    }
  }, {
    key: "sort",
    value: function sort(criteria) {
      this.sortCriteria.push(criteria);
      return this;
    }
  }, {
    key: "contains",
    value: function contains(value) {
      var _this = this;
      this.filters.push(function (record) {
        return _this.recordContainsValue(record, value);
      });
      return this;
    }
  }, {
    key: "select",
    value: function select(fields) {
      this.selectedFields = Array.isArray(fields) ? fields : [fields];
      return this;
    }
  }, {
    key: "limit",
    value: function limit(value) {
      this.limitValue = value;
      return this;
    }
  }, {
    key: "offset",
    value: function offset(value) {
      this.offsetValue = value;
      return this;
    }
  }, {
    key: "filterBy",
    value: function filterBy(fn) {
      this.filters.push(fn);
      return this;
    }
  }, {
    key: "callback",
    value: function callback(fn) {
      this.callbackFn = fn;
      return this;
    }
  }, {
    key: "execute",
    value: function execute() {
      var _this2 = this;
      var results = [];
      this.collections.forEach(function (collection) {
        var _results;
        var collectionData = _this2.storage.readAll(collection);
        if (!Array.isArray(collectionData)) {
          console.warn("Skipped collection \"".concat(collection, "\" \u2014 no data found."));
          return null;
        }
        console.log("Retrieved Records from ".concat(collection, " ~"), collectionData.length);
        var decryptedData = collectionData.map(function (record) {
          try {
            var decryptedRecord = _this2.security.unlock(record.data, collection);
            return _objectSpread(_objectSpread({}, record), decryptedRecord || {});
          } catch (error) {
            console.error("Error decrypting record ~ ".concat(record.id, " in collection ~ \"").concat(collection, "\" ~ ").concat(error.message));
            return null;
          }
        });
        (_results = results).push.apply(_results, _toConsumableArray(decryptedData.filter(Boolean)));
      });
      if (results.length <= 0) {
        return results;
      }
      var _iterator = _createForOfIteratorHelper(this.filters),
        _step;
      try {
        var _loop = function _loop() {
          var filter = _step.value;
          results = results.filter(function (record) {
            if (typeof filter === "function") {
              return filter(record.data);
            } else if (typeof filter !== "function") {
              return _this2.matchesCriteria(record.data, filter);
            }
          });
        };
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          _loop();
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
      if (this.sortCriteria.length > 0) {
        results.sort(function (a, b) {
          return _this2.applySorting(a.data, b.data);
        });
      }
      if (this.offsetValue > 0) {
        results = results.slice(this.offsetValue);
      }
      if (this.limitValue !== null) {
        results = results.slice(0, this.limitValue);
      }
      if (this.selectedFields) {
        results = results.map(function (record) {
          return _this2.projectFields(record.data, _this2.selectedFields);
        });
      }
      if (this.callbackFn) {
        results = results.map(function (record) {
          return _this2.callbackFn(record);
        }).filter(function (record) {
          return record !== undefined && record !== null;
        });
      }
      return results;
    }
  }, {
    key: "matchesCriteria",
    value: function matchesCriteria(record, criteria) {
      for (var key in criteria) {
        var condition = criteria[key];
        if (_typeof(condition) === "object" && !Array.isArray(condition)) {
          if (condition.$gte !== undefined && record[key] < condition.$gte) {
            return false;
          }
          if (condition.$lte !== undefined && record[key] > condition.$lte) {
            return false;
          }
          if (condition.$regex !== undefined && !condition.$regex.test(record[key])) {
            return false;
          }
          if (condition.$geoWithin) {
            var _condition$$geoWithin = condition.$geoWithin,
              center = _condition$$geoWithin.center,
              radius = _condition$$geoWithin.radius;
            var distance = this.calculateDistance(record[key], center);
            if (distance > radius) {
              return false;
            }
          }
        } else if (record[key] !== condition) {
          return false;
        }
      }
      return true;
    }
  }, {
    key: "recordContainsValue",
    value: function recordContainsValue(obj, target) {
      if (_typeof(obj) !== "object" || obj === null) {
        return false;
      }
      for (var key in obj) {
        var value = obj[key];
        if (_typeof(value) === "object" && value !== null) {
          if (this.recordContainsValue(value, target)) {
            return true;
          }
        } else {
          if (value === target) {
            return true;
          }
        }
      }
      return false;
    }
  }, {
    key: "applySorting",
    value: function applySorting(a, b) {
      var _iterator2 = _createForOfIteratorHelper(this.sortCriteria),
        _step2;
      try {
        for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
          var criterion = _step2.value;
          for (var field in criterion) {
            var order = criterion[field];
            if (a[field] < b[field]) {
              return order === "asc" ? -1 : 1;
            }
            if (a[field] > b[field]) {
              return order === "asc" ? 1 : -1;
            }
          }
        }
      } catch (err) {
        _iterator2.e(err);
      } finally {
        _iterator2.f();
      }
      return 0;
    }
  }, {
    key: "projectFields",
    value: function projectFields(record, fields) {
      var projected = {};
      var _iterator3 = _createForOfIteratorHelper(fields),
        _step3;
      try {
        for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
          var field = _step3.value;
          if (record[field] !== undefined) {
            projected[field] = record[field];
          }
        }
      } catch (err) {
        _iterator3.e(err);
      } finally {
        _iterator3.f();
      }
      return projected;
    }
  }, {
    key: "calculateDistance",
    value: function calculateDistance(coord1, coord2) {
      var _coord = _slicedToArray(coord1, 2),
        lat1 = _coord[0],
        lon1 = _coord[1];
      var _coord2 = _slicedToArray(coord2, 2),
        lat2 = _coord2[0],
        lon2 = _coord2[1];
      var R = 6371e3;
      var φ1 = lat1 * Math.PI / 180;
      var φ2 = lat2 * Math.PI / 180;
      var Δφ = (lat2 - lat1) * Math.PI / 180;
      var Δλ = (lon2 - lon1) * Math.PI / 180;
      var a = Math.sin(Δφ / 2) * Math.sin(Δφ / 2) + Math.cos(φ1) * Math.cos(φ2) * Math.sin(Δλ / 2) * Math.sin(Δλ / 2);
      var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
      return R * c;
    }
  }], [{
    key: "range",
    value: function range(min, max) {
      return {
        $gte: min,
        $lte: max
      };
    }
  }]);
}();
module.exports = QueryEngine;