"use strict";
var __defProp = Object.defineProperty;
var __defProps = Object.defineProperties;
var __getOwnPropDescs = Object.getOwnPropertyDescriptors;
var __getOwnPropSymbols = Object.getOwnPropertySymbols;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __propIsEnum = Object.prototype.propertyIsEnumerable;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __spreadValues = (a, b) => {
  for (var prop in b || (b = {}))
    if (__hasOwnProp.call(b, prop))
      __defNormalProp(a, prop, b[prop]);
  if (__getOwnPropSymbols)
    for (var prop of __getOwnPropSymbols(b)) {
      if (__propIsEnum.call(b, prop))
        __defNormalProp(a, prop, b[prop]);
    }
  return a;
};
var __spreadProps = (a, b) => __defProps(a, __getOwnPropDescs(b));
const Utils = require("./../utils");
const Helpers = require("./helpers");
const _ = require("lodash");
const Association = require("./base");
const Op = require("../operators");
class HasMany extends Association {
  constructor(source, target, options) {
    super(source, target, options);
    this.associationType = "HasMany";
    this.targetAssociation = null;
    this.sequelize = source.sequelize;
    this.isMultiAssociation = true;
    this.foreignKeyAttribute = {};
    if (this.options.through) {
      throw new Error("N:M associations are not supported with hasMany. Use belongsToMany instead");
    }
    if (this.isSelfAssociation) {
      this.targetAssociation = this;
    }
    if (this.as) {
      this.isAliased = true;
      if (_.isPlainObject(this.as)) {
        this.options.name = this.as;
        this.as = this.as.plural;
      } else {
        this.options.name = {
          plural: this.as,
          singular: Utils.singularize(this.as)
        };
      }
    } else {
      this.as = this.target.options.name.plural;
      this.options.name = this.target.options.name;
    }
    if (_.isObject(this.options.foreignKey)) {
      this.foreignKeyAttribute = this.options.foreignKey;
      this.foreignKey = this.foreignKeyAttribute.name || this.foreignKeyAttribute.fieldName;
    } else if (this.options.foreignKey) {
      this.foreignKey = this.options.foreignKey;
    }
    if (!this.foreignKey) {
      this.foreignKey = Utils.camelize([
        this.source.options.name.singular,
        this.source.primaryKeyAttribute
      ].join("_"));
    }
    if (this.target.rawAttributes[this.foreignKey]) {
      this.identifierField = this.target.rawAttributes[this.foreignKey].field || this.foreignKey;
      this.foreignKeyField = this.target.rawAttributes[this.foreignKey].field || this.foreignKey;
    }
    this.sourceKey = this.options.sourceKey || this.source.primaryKeyAttribute;
    if (this.source.rawAttributes[this.sourceKey]) {
      this.sourceKeyAttribute = this.sourceKey;
      this.sourceKeyField = this.source.rawAttributes[this.sourceKey].field || this.sourceKey;
    } else {
      this.sourceKeyAttribute = this.source.primaryKeyAttribute;
      this.sourceKeyField = this.source.primaryKeyField;
    }
    const plural = _.upperFirst(this.options.name.plural);
    const singular = _.upperFirst(this.options.name.singular);
    this.associationAccessor = this.as;
    this.accessors = {
      get: `get${plural}`,
      set: `set${plural}`,
      addMultiple: `add${plural}`,
      add: `add${singular}`,
      create: `create${singular}`,
      remove: `remove${singular}`,
      removeMultiple: `remove${plural}`,
      hasSingle: `has${singular}`,
      hasAll: `has${plural}`,
      count: `count${plural}`
    };
  }
  _injectAttributes() {
    const newAttributes = {
      [this.foreignKey]: __spreadValues({
        type: this.options.keyType || this.source.rawAttributes[this.sourceKeyAttribute].type,
        allowNull: true
      }, this.foreignKeyAttribute)
    };
    const constraintOptions = __spreadValues({}, this.options);
    if (this.options.constraints !== false) {
      const target = this.target.rawAttributes[this.foreignKey] || newAttributes[this.foreignKey];
      constraintOptions.onDelete = constraintOptions.onDelete || (target.allowNull ? "SET NULL" : "CASCADE");
      constraintOptions.onUpdate = constraintOptions.onUpdate || "CASCADE";
    }
    Helpers.addForeignKeyConstraints(newAttributes[this.foreignKey], this.source, this.target, constraintOptions, this.sourceKeyField);
    Utils.mergeDefaults(this.target.rawAttributes, newAttributes);
    this.target.refreshAttributes();
    this.source.refreshAttributes();
    this.identifierField = this.target.rawAttributes[this.foreignKey].field || this.foreignKey;
    this.foreignKeyField = this.target.rawAttributes[this.foreignKey].field || this.foreignKey;
    this.sourceKeyField = this.source.rawAttributes[this.sourceKey].field || this.sourceKey;
    Helpers.checkNamingCollision(this);
    return this;
  }
  mixin(obj) {
    const methods = ["get", "count", "hasSingle", "hasAll", "set", "add", "addMultiple", "remove", "removeMultiple", "create"];
    const aliases = {
      hasSingle: "has",
      hasAll: "has",
      addMultiple: "add",
      removeMultiple: "remove"
    };
    Helpers.mixinMethods(this, obj, methods, aliases);
  }
  async get(instances, options = {}) {
    const where = {};
    let Model = this.target;
    let instance;
    let values;
    if (!Array.isArray(instances)) {
      instance = instances;
      instances = void 0;
    }
    options = __spreadValues({}, options);
    if (this.scope) {
      Object.assign(where, this.scope);
    }
    if (instances) {
      values = instances.map((_instance) => _instance.get(this.sourceKey, { raw: true }));
      if (options.limit && instances.length > 1) {
        options.groupedLimit = {
          limit: options.limit,
          on: this,
          values
        };
        delete options.limit;
      } else {
        where[this.foreignKey] = {
          [Op.in]: values
        };
        delete options.groupedLimit;
      }
    } else {
      where[this.foreignKey] = instance.get(this.sourceKey, { raw: true });
    }
    options.where = options.where ? { [Op.and]: [where, options.where] } : where;
    if (Object.prototype.hasOwnProperty.call(options, "scope")) {
      if (!options.scope) {
        Model = Model.unscoped();
      } else {
        Model = Model.scope(options.scope);
      }
    }
    if (Object.prototype.hasOwnProperty.call(options, "schema")) {
      Model = Model.schema(options.schema, options.schemaDelimiter);
    }
    const results = await Model.findAll(options);
    if (instance)
      return results;
    const result = {};
    for (const _instance of instances) {
      result[_instance.get(this.sourceKey, { raw: true })] = [];
    }
    for (const _instance of results) {
      result[_instance.get(this.foreignKey, { raw: true })].push(_instance);
    }
    return result;
  }
  async count(instance, options) {
    options = Utils.cloneDeep(options);
    options.attributes = [
      [
        this.sequelize.fn("COUNT", this.sequelize.col(`${this.target.name}.${this.target.primaryKeyField}`)),
        "count"
      ]
    ];
    options.raw = true;
    options.plain = true;
    const result = await this.get(instance, options);
    return parseInt(result.count, 10);
  }
  async has(sourceInstance, targetInstances, options) {
    const where = {};
    if (!Array.isArray(targetInstances)) {
      targetInstances = [targetInstances];
    }
    options = __spreadProps(__spreadValues({}, options), {
      scope: false,
      attributes: [this.target.primaryKeyAttribute],
      raw: true
    });
    where[Op.or] = targetInstances.map((instance) => {
      if (instance instanceof this.target) {
        return instance.where();
      }
      return {
        [this.target.primaryKeyAttribute]: instance
      };
    });
    options.where = {
      [Op.and]: [
        where,
        options.where
      ]
    };
    const associatedObjects = await this.get(sourceInstance, options);
    return associatedObjects.length === targetInstances.length;
  }
  async set(sourceInstance, targetInstances, options) {
    if (targetInstances === null) {
      targetInstances = [];
    } else {
      targetInstances = this.toInstanceArray(targetInstances);
    }
    const oldAssociations = await this.get(sourceInstance, __spreadProps(__spreadValues({}, options), { scope: false, raw: true }));
    const promises = [];
    const obsoleteAssociations = oldAssociations.filter((old) => !targetInstances.find((obj) => obj[this.target.primaryKeyAttribute] === old[this.target.primaryKeyAttribute]));
    const unassociatedObjects = targetInstances.filter((obj) => !oldAssociations.find((old) => obj[this.target.primaryKeyAttribute] === old[this.target.primaryKeyAttribute]));
    let updateWhere;
    let update;
    if (obsoleteAssociations.length > 0) {
      update = {};
      update[this.foreignKey] = null;
      updateWhere = {
        [this.target.primaryKeyAttribute]: obsoleteAssociations.map((associatedObject) => associatedObject[this.target.primaryKeyAttribute])
      };
      promises.push(this.target.unscoped().update(update, __spreadProps(__spreadValues({}, options), {
        where: updateWhere
      })));
    }
    if (unassociatedObjects.length > 0) {
      updateWhere = {};
      update = {};
      update[this.foreignKey] = sourceInstance.get(this.sourceKey);
      Object.assign(update, this.scope);
      updateWhere[this.target.primaryKeyAttribute] = unassociatedObjects.map((unassociatedObject) => unassociatedObject[this.target.primaryKeyAttribute]);
      promises.push(this.target.unscoped().update(update, __spreadProps(__spreadValues({}, options), {
        where: updateWhere
      })));
    }
    await Promise.all(promises);
    return sourceInstance;
  }
  async add(sourceInstance, targetInstances, options = {}) {
    if (!targetInstances)
      return Promise.resolve();
    targetInstances = this.toInstanceArray(targetInstances);
    const update = __spreadValues({
      [this.foreignKey]: sourceInstance.get(this.sourceKey)
    }, this.scope);
    const where = {
      [this.target.primaryKeyAttribute]: targetInstances.map((unassociatedObject) => unassociatedObject.get(this.target.primaryKeyAttribute))
    };
    await this.target.unscoped().update(update, __spreadProps(__spreadValues({}, options), { where }));
    return sourceInstance;
  }
  async remove(sourceInstance, targetInstances, options = {}) {
    const update = {
      [this.foreignKey]: null
    };
    targetInstances = this.toInstanceArray(targetInstances);
    const where = {
      [this.foreignKey]: sourceInstance.get(this.sourceKey),
      [this.target.primaryKeyAttribute]: targetInstances.map((targetInstance) => targetInstance.get(this.target.primaryKeyAttribute))
    };
    await this.target.unscoped().update(update, __spreadProps(__spreadValues({}, options), { where }));
    return this;
  }
  async create(sourceInstance, values, options = {}) {
    if (Array.isArray(options)) {
      options = {
        fields: options
      };
    }
    if (values === void 0) {
      values = {};
    }
    if (this.scope) {
      for (const attribute of Object.keys(this.scope)) {
        values[attribute] = this.scope[attribute];
        if (options.fields)
          options.fields.push(attribute);
      }
    }
    values[this.foreignKey] = sourceInstance.get(this.sourceKey);
    if (options.fields)
      options.fields.push(this.foreignKey);
    return await this.target.create(values, options);
  }
  verifyAssociationAlias(alias) {
    if (typeof alias === "string") {
      return this.as === alias;
    }
    if (alias && alias.plural) {
      return this.as === alias.plural;
    }
    return !this.isAliased;
  }
}
module.exports = HasMany;
module.exports.HasMany = HasMany;
module.exports.default = HasMany;
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