text: "use strict";
  Object.defineProperty(exports, "__esModule", { value: true });
  var tslib_1 = require("tslib");
  var DriverUtils_1 = require("../../driver/DriverUtils");
  var RelationIdLoader = /** @class */ (function () {
      // -------------------------------------------------------------------------
      // Constructor
      // -------------------------------------------------------------------------
      function RelationIdLoader(connection, queryRunner, relationIdAttributes) {
          this.connection = connection;
          this.queryRunner = queryRunner;
          this.relationIdAttributes = relationIdAttributes;
      }
      // -------------------------------------------------------------------------
      // Public Methods
      // -------------------------------------------------------------------------
      RelationIdLoader.prototype.load = function (rawEntities) {
          return tslib_1.__awaiter(this, void 0, void 0, function () {
              var promises;
              var _this = this;
              return tslib_1.__generator(this, function (_a) {
                  promises = this.relationIdAttributes.map(function (relationIdAttr) { return tslib_1.__awaiter(_this, void 0, void 0, function () {
                      var results, relation_1, joinColumns_1, table, tableName, tableAlias_1, parameters_1, condition, qb_1, results, relation, joinColumns_2, inverseJoinColumns_1, junctionAlias_1, inverseSideTableName, inverseSideTableAlias_1, junctionTableName, mappedColumns, parameters_2, joinColumnConditions, inverseJoinColumnCondition_1, condition, qb_2, results;
                      var _this = this;
                      return tslib_1.__generator(this, function (_a) {
                          switch (_a.label) {
                              case 0:
                                  if (!(relationIdAttr.relation.isManyToOne || relationIdAttr.relation.isOneToOneOwner)) return [3 /*break*/, 1];
                                  // example: Post and Tag
                                  // loadRelationIdAndMap("post.tagId", "post.tag")
                                  // we expect it to load id of tag
                                  if (relationIdAttr.queryBuilderFactory)
                                      throw new Error("Additional condition can not be used with ManyToOne or OneToOne owner relations.");
                                  results = rawEntities.map(function (rawEntity) {
                                      var result = {};
                                      relationIdAttr.relation.joinColumns.forEach(function (joinColumn) {
                                          result[joinColumn.databaseName] = _this.connection.driver.prepareHydratedValue(rawEntity[DriverUtils_1.DriverUtils.buildColumnAlias(_this.connection.driver, relationIdAttr.parentAlias, joinColumn.databaseName)], joinColumn.referencedColumn);
                                      });
                                      relationIdAttr.relation.entityMetadata.primaryColumns.forEach(function (primaryColumn) {
                                          result[primaryColumn.databaseName] = _this.connection.driver.prepareHydratedValue(rawEntity[DriverUtils_1.DriverUtils.buildColumnAlias(_this.connection.driver, relationIdAttr.parentAlias, primaryColumn.databaseName)], primaryColumn);
                                      });
                                      return result;
                                  });
                                  return [2 /*return*/, {
                                          relationIdAttribute: relationIdAttr,
                                          results: results
                                      }];
                              case 1:
                                  if (!(relationIdAttr.relation.isOneToMany || relationIdAttr.relation.isOneToOneNotOwner)) return [3 /*break*/, 3];
                                  relation_1 = relationIdAttr.relation;
                                  joinColumns_1 = relation_1.isOwning ? relation_1.joinColumns : relation_1.inverseRelation.joinColumns;
                                  table = relation_1.inverseEntityMetadata.target;
                                  tableName = relation_1.inverseEntityMetadata.tableName;
                                  tableAlias_1 = relationIdAttr.alias || tableName;
                                  parameters_1 = {};
                                  condition = rawEntities.map(function (rawEntity, index) {
                                      return joinColumns_1.map(function (joinColumn) {
                                          var parameterName = joinColumn.databaseName + index;
                                          parameters_1[parameterName] = rawEntity[DriverUtils_1.DriverUtils.buildColumnAlias(_this.connection.driver, relationIdAttr.parentAlias, joinColumn.referencedColumn.databaseName)];
                                          return tableAlias_1 + "." + joinColumn.propertyPath + " = :" + parameterName;
                                      }).join(" AND ");
                                  }).map(function (condition) { return "(" + condition + ")"; })
                                      .join(" OR ");
                                  // ensure we won't perform redundant queries for joined data which was not found in selection
                                  // example: if post.category was not found in db then no need to execute query for category.imageIds
                                  if (!condition)
                                      return [2 /*return*/, { relationIdAttribute: relationIdAttr, results: [] }];
                                  qb_1 = this.connection.createQueryBuilder(this.queryRunner);
                                  joinColumns_1.forEach(function (joinColumn) {
                                      qb_1.addSelect(tableAlias_1 + "." + joinColumn.propertyPath, joinColumn.databaseName);
                                  });
                                  relation_1.inverseRelation.entityMetadata.primaryColumns.forEach(function (primaryColumn) {
                                      qb_1.addSelect(tableAlias_1 + "." + primaryColumn.propertyPath, primaryColumn.databaseName);
                                  });
                                  qb_1.from(table, tableAlias_1)
                                      .where("(" + condition + ")") // need brackets because if we have additional condition and no brackets, it looks like (a = 1) OR (a = 2) AND b = 1, that is incorrect
                                      .setParameters(parameters_1);
                                  // apply condition (custom query builder factory)
                                  if (relationIdAttr.queryBuilderFactory)
                                      relationIdAttr.queryBuilderFactory(qb_1);
                                  return [4 /*yield*/, qb_1.getRawMany()];
                              case 2:
                                  results = _a.sent();
                                  results.forEach(function (result) {
                                      joinColumns_1.forEach(function (column) {
                                          result[column.databaseName] = _this.connection.driver.prepareHydratedValue(result[column.databaseName], column.referencedColumn);
                                      });
                                      relation_1.inverseRelation.entityMetadata.primaryColumns.forEach(function (column) {
                                          result[column.databaseName] = _this.connection.driver.prepareHydratedValue(result[column.databaseName], column);
                                      });
                                  });
                                  return [2 /*return*/, {
                                          relationIdAttribute: relationIdAttr,
                                          results: results
                                      }];
                              case 3:
                                  relation = relationIdAttr.relation;
                                  joinColumns_2 = relation.isOwning ? relation.joinColumns : relation.inverseRelation.inverseJoinColumns;
                                  inverseJoinColumns_1 = relation.isOwning ? relation.inverseJoinColumns : relation.inverseRelation.joinColumns;
                                  junctionAlias_1 = relationIdAttr.junctionAlias;
                                  inverseSideTableName = relationIdAttr.joinInverseSideMetadata.tableName;
                                  inverseSideTableAlias_1 = relationIdAttr.alias || inverseSideTableName;
                                  junctionTableName = relation.isOwning ? relation.junctionEntityMetadata.tableName : relation.inverseRelation.junctionEntityMetadata.tableName;
                                  mappedColumns = rawEntities.map(function (rawEntity) {
                                      return joinColumns_2.reduce(function (map, joinColumn) {
                                          map[joinColumn.propertyPath] = rawEntity[DriverUtils_1.DriverUtils.buildColumnAlias(_this.connection.driver, relationIdAttr.parentAlias, joinColumn.referencedColumn.databaseName)];
                                          return map;
                                      }, {});
                                  });
                                  // ensure we won't perform redundant queries for joined data which was not found in selection
                                  // example: if post.category was not found in db then no need to execute query for category.imageIds
                                  if (mappedColumns.length === 0)
                                      return [2 /*return*/, { relationIdAttribute: relationIdAttr, results: [] }];
                                  parameters_2 = {};
                                  joinColumnConditions = mappedColumns.map(function (mappedColumn, index) {
                                      return Object.keys(mappedColumn).map(function (key) {
                                          var parameterName = key + index;
                                          parameters_2[parameterName] = mappedColumn[key];
                                          return _this.connection.driver.escape(junctionAlias_1) + "." + key + " = :" + parameterName;
                                      }).join(" AND ");
                                  });
                                  inverseJoinColumnCondition_1 = inverseJoinColumns_1.map(function (joinColumn) {
                                      return _this.connection.driver.escape(junctionAlias_1) + "." + joinColumn.propertyPath + " = " + inverseSideTableAlias_1 + "." + joinColumn.referencedColumn.propertyPath;
                                  }).join(" AND ");
                                  condition = joinColumnConditions.map(function (condition) {
                                      return "(" + condition + " AND " + inverseJoinColumnCondition_1 + ")";
                                  }).join(" OR ");
                                  qb_2 = this.connection.createQueryBuilder(this.queryRunner);
                                  inverseJoinColumns_1.forEach(function (joinColumn) {
                                      qb_2.addSelect(_this.connection.driver.escape(junctionAlias_1) + "." + joinColumn.propertyPath, joinColumn.databaseName)
                                          .addOrderBy(_this.connection.driver.escape(junctionAlias_1) + "." + joinColumn.propertyPath);
                                  });
                                  joinColumns_2.forEach(function (joinColumn) {
                                      qb_2.addSelect(_this.connection.driver.escape(junctionAlias_1) + "." + joinColumn.propertyPath, joinColumn.databaseName)
                                          .addOrderBy(_this.connection.driver.escape(junctionAlias_1) + "." + joinColumn.propertyPath);
                                  });
                                  qb_2.from(inverseSideTableName, inverseSideTableAlias_1)
                                      .innerJoin(junctionTableName, junctionAlias_1, condition)
                                      .setParameters(parameters_2);
                                  // apply condition (custom query builder factory)
                                  if (relationIdAttr.queryBuilderFactory)
                                      relationIdAttr.queryBuilderFactory(qb_2);
                                  return [4 /*yield*/, qb_2.getRawMany()];
                              case 4:
                                  results = _a.sent();
                                  results.forEach(function (result) {
                                      tslib_1.__spread(joinColumns_2, inverseJoinColumns_1).forEach(function (column) {
                                          result[column.databaseName] = _this.connection.driver.prepareHydratedValue(result[column.databaseName], column.referencedColumn);
                                      });
                                  });
                                  return [2 /*return*/, {
                                          relationIdAttribute: relationIdAttr,
                                          results: results
                                      }];
                          }
                      });
                  }); });
                  return [2 /*return*/, Promise.all(promises)];
              });
          });
      };
      return RelationIdLoader;
  }());
  exports.RelationIdLoader = RelationIdLoader;
  //# sourceMappingURL=RelationIdLoader.js.map
  