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Viewing file:     query.js (12.77 KB)      -rw-r--r--

import _extends from "@babel/runtime/helpers/esm/extends";
import { functionalUpdate, isValidTimeout, noop, replaceEqualDeep, timeUntilStale } from './utils';
import { notifyManager } from './notifyManager';
import { getLogger } from './logger';
import { Retryer, isCancelledError } from './retryer'; // TYPES

// CLASS
export var Query = /*#__PURE__*/function () {
  function Query(config) {
    this.defaultOptions = config.defaultOptions;
    this.setOptions(config.options);
    this.observers = [];
    this.cache = config.cache;
    this.queryKey = config.queryKey;
    this.queryHash = config.queryHash;
    this.initialState = config.state || this.getDefaultState(this.options);
    this.state = this.initialState;
    this.scheduleGc();
  }

  var _proto = Query.prototype;

  _proto.setOptions = function setOptions(options) {
    var _this$options$cacheTi;

    this.options = _extends({}, this.defaultOptions, options); // Default to 5 minutes if not cache time is set

    this.cacheTime = Math.max(this.cacheTime || 0, (_this$options$cacheTi = this.options.cacheTime) != null ? _this$options$cacheTi : 5 * 60 * 1000);
  };

  _proto.setDefaultOptions = function setDefaultOptions(options) {
    this.defaultOptions = options;
  };

  _proto.scheduleGc = function scheduleGc() {
    var _this = this;

    this.clearGcTimeout();

    if (isValidTimeout(this.cacheTime)) {
      this.gcTimeout = setTimeout(function () {
        _this.optionalRemove();
      }, this.cacheTime);
    }
  };

  _proto.clearGcTimeout = function clearGcTimeout() {
    clearTimeout(this.gcTimeout);
    this.gcTimeout = undefined;
  };

  _proto.optionalRemove = function optionalRemove() {
    if (!this.observers.length && !this.state.isFetching) {
      this.cache.remove(this);
    }
  };

  _proto.setData = function setData(updater, options) {
    var _this$options$isDataE, _this$options;

    var prevData = this.state.data; // Get the new data

    var data = functionalUpdate(updater, prevData); // Use prev data if an isDataEqual function is defined and returns `true`

    if ((_this$options$isDataE = (_this$options = this.options).isDataEqual) == null ? void 0 : _this$options$isDataE.call(_this$options, prevData, data)) {
      data = prevData;
    } else if (this.options.structuralSharing !== false) {
      // Structurally share data between prev and new data if needed
      data = replaceEqualDeep(prevData, data);
    } // Set data and mark it as cached


    this.dispatch({
      data: data,
      type: 'success',
      dataUpdatedAt: options == null ? void 0 : options.updatedAt
    });
    return data;
  };

  _proto.setState = function setState(state, setStateOptions) {
    this.dispatch({
      type: 'setState',
      state: state,
      setStateOptions: setStateOptions
    });
  };

  _proto.cancel = function cancel(options) {
    var _this$retryer;

    var promise = this.promise;
    (_this$retryer = this.retryer) == null ? void 0 : _this$retryer.cancel(options);
    return promise ? promise.then(noop).catch(noop) : Promise.resolve();
  };

  _proto.destroy = function destroy() {
    this.clearGcTimeout();
    this.cancel({
      silent: true
    });
  };

  _proto.reset = function reset() {
    this.destroy();
    this.setState(this.initialState);
  };

  _proto.isActive = function isActive() {
    return this.observers.some(function (observer) {
      return observer.options.enabled !== false;
    });
  };

  _proto.isFetching = function isFetching() {
    return this.state.isFetching;
  };

  _proto.isStale = function isStale() {
    return this.state.isInvalidated || !this.state.dataUpdatedAt || this.observers.some(function (observer) {
      return observer.getCurrentResult().isStale;
    });
  };

  _proto.isStaleByTime = function isStaleByTime(staleTime) {
    if (staleTime === void 0) {
      staleTime = 0;
    }

    return this.state.isInvalidated || !this.state.dataUpdatedAt || !timeUntilStale(this.state.dataUpdatedAt, staleTime);
  };

  _proto.onFocus = function onFocus() {
    var _this$retryer2;

    var observer = this.observers.find(function (x) {
      return x.shouldFetchOnWindowFocus();
    });

    if (observer) {
      observer.refetch();
    } // Continue fetch if currently paused


    (_this$retryer2 = this.retryer) == null ? void 0 : _this$retryer2.continue();
  };

  _proto.onOnline = function onOnline() {
    var _this$retryer3;

    var observer = this.observers.find(function (x) {
      return x.shouldFetchOnReconnect();
    });

    if (observer) {
      observer.refetch();
    } // Continue fetch if currently paused


    (_this$retryer3 = this.retryer) == null ? void 0 : _this$retryer3.continue();
  };

  _proto.addObserver = function addObserver(observer) {
    if (this.observers.indexOf(observer) === -1) {
      this.observers.push(observer); // Stop the query from being garbage collected

      this.clearGcTimeout();
      this.cache.notify({
        type: 'observerAdded',
        query: this,
        observer: observer
      });
    }
  };

  _proto.removeObserver = function removeObserver(observer) {
    if (this.observers.indexOf(observer) !== -1) {
      this.observers = this.observers.filter(function (x) {
        return x !== observer;
      });

      if (!this.observers.length) {
        // If the transport layer does not support cancellation
        // we'll let the query continue so the result can be cached
        if (this.retryer) {
          if (this.retryer.isTransportCancelable) {
            this.retryer.cancel({
              revert: true
            });
          } else {
            this.retryer.cancelRetry();
          }
        }

        if (this.cacheTime) {
          this.scheduleGc();
        } else {
          this.cache.remove(this);
        }
      }

      this.cache.notify({
        type: 'observerRemoved',
        query: this,
        observer: observer
      });
    }
  };

  _proto.invalidate = function invalidate() {
    if (!this.state.isInvalidated) {
      this.dispatch({
        type: 'invalidate'
      });
    }
  };

  _proto.fetch = function fetch(options, fetchOptions) {
    var _this2 = this,
        _this$options$behavio,
        _context$fetchOptions;

    if (this.state.isFetching) {
      if (this.state.dataUpdatedAt && (fetchOptions == null ? void 0 : fetchOptions.cancelRefetch)) {
        // Silently cancel current fetch if the user wants to cancel refetches
        this.cancel({
          silent: true
        });
      } else if (this.promise) {
        // Return current promise if we are already fetching
        return this.promise;
      }
    } // Update config if passed, otherwise the config from the last execution is used


    if (options) {
      this.setOptions(options);
    } // Use the options from the first observer with a query function if no function is found.
    // This can happen when the query is hydrated or created with setQueryData.


    if (!this.options.queryFn) {
      var observer = this.observers.find(function (x) {
        return x.options.queryFn;
      });

      if (observer) {
        this.setOptions(observer.options);
      }
    } // Create query function context


    var queryFnContext = {
      queryKey: this.queryKey,
      pageParam: undefined
    }; // Create fetch function

    var fetchFn = function fetchFn() {
      return _this2.options.queryFn ? _this2.options.queryFn(queryFnContext) : Promise.reject('Missing queryFn');
    }; // Trigger behavior hook


    var context = {
      fetchOptions: fetchOptions,
      options: this.options,
      queryKey: this.queryKey,
      state: this.state,
      fetchFn: fetchFn
    };

    if ((_this$options$behavio = this.options.behavior) == null ? void 0 : _this$options$behavio.onFetch) {
      var _this$options$behavio2;

      (_this$options$behavio2 = this.options.behavior) == null ? void 0 : _this$options$behavio2.onFetch(context);
    } // Store state in case the current fetch needs to be reverted


    this.revertState = this.state; // Set to fetching state if not already in it

    if (!this.state.isFetching || this.state.fetchMeta !== ((_context$fetchOptions = context.fetchOptions) == null ? void 0 : _context$fetchOptions.meta)) {
      var _context$fetchOptions2;

      this.dispatch({
        type: 'fetch',
        meta: (_context$fetchOptions2 = context.fetchOptions) == null ? void 0 : _context$fetchOptions2.meta
      });
    } // Try to fetch the data


    this.retryer = new Retryer({
      fn: context.fetchFn,
      onSuccess: function onSuccess(data) {
        _this2.setData(data); // Remove query after fetching if cache time is 0


        if (_this2.cacheTime === 0) {
          _this2.optionalRemove();
        }
      },
      onError: function onError(error) {
        // Optimistically update state if needed
        if (!(isCancelledError(error) && error.silent)) {
          _this2.dispatch({
            type: 'error',
            error: error
          });
        }

        if (!isCancelledError(error)) {
          // Notify cache callback
          if (_this2.cache.config.onError) {
            _this2.cache.config.onError(error, _this2);
          } // Log error


          getLogger().error(error);
        } // Remove query after fetching if cache time is 0


        if (_this2.cacheTime === 0) {
          _this2.optionalRemove();
        }
      },
      onFail: function onFail() {
        _this2.dispatch({
          type: 'failed'
        });
      },
      onPause: function onPause() {
        _this2.dispatch({
          type: 'pause'
        });
      },
      onContinue: function onContinue() {
        _this2.dispatch({
          type: 'continue'
        });
      },
      retry: context.options.retry,
      retryDelay: context.options.retryDelay
    });
    this.promise = this.retryer.promise;
    return this.promise;
  };

  _proto.dispatch = function dispatch(action) {
    var _this3 = this;

    this.state = this.reducer(this.state, action);
    notifyManager.batch(function () {
      _this3.observers.forEach(function (observer) {
        observer.onQueryUpdate(action);
      });

      _this3.cache.notify({
        query: _this3,
        type: 'queryUpdated',
        action: action
      });
    });
  };

  _proto.getDefaultState = function getDefaultState(options) {
    var data = typeof options.initialData === 'function' ? options.initialData() : options.initialData;
    var hasInitialData = typeof options.initialData !== 'undefined';
    var initialDataUpdatedAt = hasInitialData ? typeof options.initialDataUpdatedAt === 'function' ? options.initialDataUpdatedAt() : options.initialDataUpdatedAt : 0;
    var hasData = typeof data !== 'undefined';
    return {
      data: data,
      dataUpdateCount: 0,
      dataUpdatedAt: hasData ? initialDataUpdatedAt != null ? initialDataUpdatedAt : Date.now() : 0,
      error: null,
      errorUpdateCount: 0,
      errorUpdatedAt: 0,
      fetchFailureCount: 0,
      fetchMeta: null,
      isFetching: false,
      isInvalidated: false,
      isPaused: false,
      status: hasData ? 'success' : 'idle'
    };
  };

  _proto.reducer = function reducer(state, action) {
    var _action$meta, _action$dataUpdatedAt;

    switch (action.type) {
      case 'failed':
        return _extends({}, state, {
          fetchFailureCount: state.fetchFailureCount + 1
        });

      case 'pause':
        return _extends({}, state, {
          isPaused: true
        });

      case 'continue':
        return _extends({}, state, {
          isPaused: false
        });

      case 'fetch':
        return _extends({}, state, {
          fetchFailureCount: 0,
          fetchMeta: (_action$meta = action.meta) != null ? _action$meta : null,
          isFetching: true,
          isPaused: false,
          status: !state.dataUpdatedAt ? 'loading' : state.status
        });

      case 'success':
        return _extends({}, state, {
          data: action.data,
          dataUpdateCount: state.dataUpdateCount + 1,
          dataUpdatedAt: (_action$dataUpdatedAt = action.dataUpdatedAt) != null ? _action$dataUpdatedAt : Date.now(),
          error: null,
          fetchFailureCount: 0,
          isFetching: false,
          isInvalidated: false,
          isPaused: false,
          status: 'success'
        });

      case 'error':
        var error = action.error;

        if (isCancelledError(error) && error.revert && this.revertState) {
          return _extends({}, this.revertState);
        }

        return _extends({}, state, {
          error: error,
          errorUpdateCount: state.errorUpdateCount + 1,
          errorUpdatedAt: Date.now(),
          fetchFailureCount: state.fetchFailureCount + 1,
          isFetching: false,
          isPaused: false,
          status: 'error'
        });

      case 'invalidate':
        return _extends({}, state, {
          isInvalidated: true
        });

      case 'setState':
        return _extends({}, state, action.state);

      default:
        return state;
    }
  };

  return Query;
}();