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'use strict';
/*! * ignore */
module.exports = applyQueryMiddleware;
const validOps = require('./validOps');
/*! * ignore */
applyQueryMiddleware.middlewareFunctions = validOps.concat([  'validate']);
/** * Apply query middleware * * @param {Query} Query constructor * @param {Model} model * @api private */
function applyQueryMiddleware(Query, model) {  const kareemOptions = {    useErrorHandlers: true,    numCallbackParams: 1,    nullResultByDefault: true  };
  const middleware = model.hooks.filter(hook => {    const contexts = _getContexts(hook);    if (hook.name === 'updateOne') {      return contexts.query == null || !!contexts.query;    }    if (hook.name === 'deleteOne') {      return !!contexts.query || Object.keys(contexts).length === 0;    }    if (hook.name === 'validate' || hook.name === 'remove') {      return !!contexts.query;    }    if (hook.query != null || hook.document != null) {      return !!hook.query;    }    return true;  });
  // `update()` thunk has a different name because `_update` was already taken  Query.prototype._execUpdate = middleware.createWrapper('update',    Query.prototype._execUpdate, null, kareemOptions);  // `distinct()` thunk has a different name because `_distinct` was already taken  Query.prototype.__distinct = middleware.createWrapper('distinct',    Query.prototype.__distinct, null, kareemOptions);
  // `validate()` doesn't have a thunk because it doesn't execute a query.  Query.prototype.validate = middleware.createWrapper('validate',    Query.prototype.validate, null, kareemOptions);
  applyQueryMiddleware.middlewareFunctions.    filter(v => v !== 'update' && v !== 'distinct' && v !== 'validate').    forEach(fn => {      Query.prototype[`_${fn}`] = middleware.createWrapper(fn,        Query.prototype[`_${fn}`], null, kareemOptions);    });}
function _getContexts(hook) {  const ret = {};  if (hook.hasOwnProperty('query')) {    ret.query = hook.query;  }  if (hook.hasOwnProperty('document')) {    ret.document = hook.document;  }  return ret;}