/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import { pick } from 'lodash';
import { tableApiUtil } from 'src/hooks/apiResources/tables';
import {
  BYTES_PER_CHAR,
  KB_STORAGE,
  LOCALSTORAGE_MAX_QUERY_AGE_MS,
  LOCALSTORAGE_MAX_QUERY_RESULTS_KB,
} from '../constants';

const PERSISTENT_QUERY_EDITOR_KEYS = new Set([
  'version',
  'remoteId',
  'autorun',
  'dbId',
  'height',
  'id',
  'latestQueryId',
  'northPercent',
  'queryLimit',
  'schema',
  'selectedText',
  'southPercent',
  'sql',
  'templateParams',
  'name',
  'hideLeftBar',
]);

function shouldEmptyQueryResults(query) {
  const { startDttm, results } = query;
  return (
    Date.now() - startDttm > LOCALSTORAGE_MAX_QUERY_AGE_MS ||
    ((JSON.stringify(results)?.length || 0) * BYTES_PER_CHAR) / KB_STORAGE >
      LOCALSTORAGE_MAX_QUERY_RESULTS_KB
  );
}

export function emptyTablePersistData(tables) {
  return tables
    .map(table =>
      pick(table, [
        'id',
        'name',
        'dbId',
        'schema',
        'dataPreviewQueryId',
        'queryEditorId',
      ]),
    )
    .filter(({ queryEditorId }) => Boolean(queryEditorId));
}

export function emptyQueryResults(queries) {
  return Object.keys(queries).reduce((accu, key) => {
    const { results } = queries[key];
    const query = {
      ...queries[key],
      results: shouldEmptyQueryResults(queries[key]) ? {} : results,
    };

    const updatedQueries = {
      ...accu,
      [key]: query,
    };
    return updatedQueries;
  }, {});
}

export function clearQueryEditors(queryEditors) {
  return queryEditors.map(editor =>
    // only return selected keys
    Object.keys(editor)
      .filter(key => PERSISTENT_QUERY_EDITOR_KEYS.has(key))
      .reduce(
        (accumulator, key) => ({
          ...accumulator,
          [key]: editor[key],
        }),
        {},
      ),
  );
}

export function rehydratePersistedState(dispatch, state) {
  // Rehydrate server side persisted table metadata
  state.sqlLab.tables.forEach(({ name: table, schema, dbId, persistData }) => {
    if (dbId && schema && table && persistData?.columns) {
      dispatch(
        tableApiUtil.upsertQueryData(
          'tableMetadata',
          { dbId, schema, table },
          persistData,
        ),
      );
      dispatch(
        tableApiUtil.upsertQueryData(
          'tableExtendedMetadata',
          { dbId, schema, table },
          {},
        ),
      );
    }
  });
}