@ngrx/entity/fesm2015/ngrx-entity.js

import { createSelector } from '@ngrx/store';
import { isDevMode } from '@angular/core';

function getInitialEntityState() {
    return {
        ids: [],
        entities: {},
    };
}
function createInitialStateFactory() {
    function getInitialState(additionalState = {}) {
        return Object.assign(getInitialEntityState(), additionalState);
    }
    return { getInitialState };
}

function createSelectorsFactory() {
    function getSelectors(selectState) {
        const selectIds = (state) => state.ids;
        const selectEntities = (state) => state.entities;
        const selectAll = createSelector(selectIds, selectEntities, (ids, entities) => ids.map((id) => entities[id]));
        const selectTotal = createSelector(selectIds, (ids) => ids.length);
        if (!selectState) {
            return {
                selectIds,
                selectEntities,
                selectAll,
                selectTotal,
            };
        }
        return {
            selectIds: createSelector(selectState, selectIds),
            selectEntities: createSelector(selectState, selectEntities),
            selectAll: createSelector(selectState, selectAll),
            selectTotal: createSelector(selectState, selectTotal),
        };
    }
    return { getSelectors };
}

var DidMutate;
(function (DidMutate) {
    DidMutate[DidMutate["EntitiesOnly"] = 0] = "EntitiesOnly";
    DidMutate[DidMutate["Both"] = 1] = "Both";
    DidMutate[DidMutate["None"] = 2] = "None";
})(DidMutate || (DidMutate = {}));
function createStateOperator(mutator) {
    return function operation(arg, state) {
        const clonedEntityState = {
            ids: [...state.ids],
            entities: Object.assign({}, state.entities),
        };
        const didMutate = mutator(arg, clonedEntityState);
        if (didMutate === DidMutate.Both) {
            return Object.assign({}, state, clonedEntityState);
        }
        if (didMutate === DidMutate.EntitiesOnly) {
            return Object.assign(Object.assign({}, state), { entities: clonedEntityState.entities });
        }
        return state;
    };
}

function selectIdValue(entity, selectId) {
    const key = selectId(entity);
    if (isDevMode() && key === undefined) {
        console.warn('@ngrx/entity: The entity passed to the `selectId` implementation returned undefined.', 'You should probably provide your own `selectId` implementation.', 'The entity that was passed:', entity, 'The `selectId` implementation:', selectId.toString());
    }
    return key;
}

function createUnsortedStateAdapter(selectId) {
    function addOneMutably(entity, state) {
        const key = selectIdValue(entity, selectId);
        if (key in state.entities) {
            return DidMutate.None;
        }
        state.ids.push(key);
        state.entities[key] = entity;
        return DidMutate.Both;
    }
    function addManyMutably(entities, state) {
        let didMutate = false;
        for (const entity of entities) {
            didMutate = addOneMutably(entity, state) !== DidMutate.None || didMutate;
        }
        return didMutate ? DidMutate.Both : DidMutate.None;
    }
    function setAllMutably(entities, state) {
        state.ids = [];
        state.entities = {};
        addManyMutably(entities, state);
        return DidMutate.Both;
    }
    function setOneMutably(entity, state) {
        const key = selectIdValue(entity, selectId);
        if (key in state.entities) {
            state.entities[key] = entity;
            return DidMutate.EntitiesOnly;
        }
        state.ids.push(key);
        state.entities[key] = entity;
        return DidMutate.Both;
    }
    function removeOneMutably(key, state) {
        return removeManyMutably([key], state);
    }
    function removeManyMutably(keysOrPredicate, state) {
        const keys = keysOrPredicate instanceof Array
            ? keysOrPredicate
            : state.ids.filter((key) => keysOrPredicate(state.entities[key]));
        const didMutate = keys
            .filter((key) => key in state.entities)
            .map((key) => delete state.entities[key]).length > 0;
        if (didMutate) {
            state.ids = state.ids.filter((id) => id in state.entities);
        }
        return didMutate ? DidMutate.Both : DidMutate.None;
    }
    function removeAll(state) {
        return Object.assign({}, state, {
            ids: [],
            entities: {},
        });
    }
    function takeNewKey(keys, update, state) {
        const original = state.entities[update.id];
        const updated = Object.assign({}, original, update.changes);
        const newKey = selectIdValue(updated, selectId);
        const hasNewKey = newKey !== update.id;
        if (hasNewKey) {
            keys[update.id] = newKey;
            delete state.entities[update.id];
        }
        state.entities[newKey] = updated;
        return hasNewKey;
    }
    function updateOneMutably(update, state) {
        return updateManyMutably([update], state);
    }
    function updateManyMutably(updates, state) {
        const newKeys = {};
        updates = updates.filter((update) => update.id in state.entities);
        const didMutateEntities = updates.length > 0;
        if (didMutateEntities) {
            const didMutateIds = updates.filter((update) => takeNewKey(newKeys, update, state)).length >
                0;
            if (didMutateIds) {
                state.ids = state.ids.map((id) => newKeys[id] || id);
                return DidMutate.Both;
            }
            else {
                return DidMutate.EntitiesOnly;
            }
        }
        return DidMutate.None;
    }
    function mapMutably(map, state) {
        const changes = state.ids.reduce((changes, id) => {
            const change = map(state.entities[id]);
            if (change !== state.entities[id]) {
                changes.push({ id, changes: change });
            }
            return changes;
        }, []);
        const updates = changes.filter(({ id }) => id in state.entities);
        return updateManyMutably(updates, state);
    }
    function mapOneMutably({ map, id }, state) {
        const entity = state.entities[id];
        if (!entity) {
            return DidMutate.None;
        }
        const updatedEntity = map(entity);
        return updateOneMutably({
            id: id,
            changes: updatedEntity,
        }, state);
    }
    function upsertOneMutably(entity, state) {
        return upsertManyMutably([entity], state);
    }
    function upsertManyMutably(entities, state) {
        const added = [];
        const updated = [];
        for (const entity of entities) {
            const id = selectIdValue(entity, selectId);
            if (id in state.entities) {
                updated.push({ id, changes: entity });
            }
            else {
                added.push(entity);
            }
        }
        const didMutateByUpdated = updateManyMutably(updated, state);
        const didMutateByAdded = addManyMutably(added, state);
        switch (true) {
            case didMutateByAdded === DidMutate.None &&
                didMutateByUpdated === DidMutate.None:
                return DidMutate.None;
            case didMutateByAdded === DidMutate.Both ||
                didMutateByUpdated === DidMutate.Both:
                return DidMutate.Both;
            default:
                return DidMutate.EntitiesOnly;
        }
    }
    return {
        removeAll,
        addOne: createStateOperator(addOneMutably),
        addMany: createStateOperator(addManyMutably),
        setAll: createStateOperator(setAllMutably),
        setOne: createStateOperator(setOneMutably),
        updateOne: createStateOperator(updateOneMutably),
        updateMany: createStateOperator(updateManyMutably),
        upsertOne: createStateOperator(upsertOneMutably),
        upsertMany: createStateOperator(upsertManyMutably),
        removeOne: createStateOperator(removeOneMutably),
        removeMany: createStateOperator(removeManyMutably),
        map: createStateOperator(mapMutably),
        mapOne: createStateOperator(mapOneMutably),
    };
}

function createSortedStateAdapter(selectId, sort) {
    const { removeOne, removeMany, removeAll } = createUnsortedStateAdapter(selectId);
    function addOneMutably(entity, state) {
        return addManyMutably([entity], state);
    }
    function addManyMutably(newModels, state) {
        const models = newModels.filter((model) => !(selectIdValue(model, selectId) in state.entities));
        if (models.length === 0) {
            return DidMutate.None;
        }
        else {
            merge(models, state);
            return DidMutate.Both;
        }
    }
    function setAllMutably(models, state) {
        state.entities = {};
        state.ids = [];
        addManyMutably(models, state);
        return DidMutate.Both;
    }
    function setOneMutably(entity, state) {
        const id = selectIdValue(entity, selectId);
        if (id in state.entities) {
            state.ids = state.ids.filter((val) => val !== id);
            merge([entity], state);
            return DidMutate.Both;
        }
        else {
            return addOneMutably(entity, state);
        }
    }
    function updateOneMutably(update, state) {
        return updateManyMutably([update], state);
    }
    function takeUpdatedModel(models, update, state) {
        if (!(update.id in state.entities)) {
            return false;
        }
        const original = state.entities[update.id];
        const updated = Object.assign({}, original, update.changes);
        const newKey = selectIdValue(updated, selectId);
        delete state.entities[update.id];
        models.push(updated);
        return newKey !== update.id;
    }
    function updateManyMutably(updates, state) {
        const models = [];
        const didMutateIds = updates.filter((update) => takeUpdatedModel(models, update, state))
            .length > 0;
        if (models.length === 0) {
            return DidMutate.None;
        }
        else {
            const originalIds = state.ids;
            const updatedIndexes = [];
            state.ids = state.ids.filter((id, index) => {
                if (id in state.entities) {
                    return true;
                }
                else {
                    updatedIndexes.push(index);
                    return false;
                }
            });
            merge(models, state);
            if (!didMutateIds &&
                updatedIndexes.every((i) => state.ids[i] === originalIds[i])) {
                return DidMutate.EntitiesOnly;
            }
            else {
                return DidMutate.Both;
            }
        }
    }
    function mapMutably(updatesOrMap, state) {
        const updates = state.ids.reduce((changes, id) => {
            const change = updatesOrMap(state.entities[id]);
            if (change !== state.entities[id]) {
                changes.push({ id, changes: change });
            }
            return changes;
        }, []);
        return updateManyMutably(updates, state);
    }
    function mapOneMutably({ map, id }, state) {
        const entity = state.entities[id];
        if (!entity) {
            return DidMutate.None;
        }
        const updatedEntity = map(entity);
        return updateOneMutably({
            id: id,
            changes: updatedEntity,
        }, state);
    }
    function upsertOneMutably(entity, state) {
        return upsertManyMutably([entity], state);
    }
    function upsertManyMutably(entities, state) {
        const added = [];
        const updated = [];
        for (const entity of entities) {
            const id = selectIdValue(entity, selectId);
            if (id in state.entities) {
                updated.push({ id, changes: entity });
            }
            else {
                added.push(entity);
            }
        }
        const didMutateByUpdated = updateManyMutably(updated, state);
        const didMutateByAdded = addManyMutably(added, state);
        switch (true) {
            case didMutateByAdded === DidMutate.None &&
                didMutateByUpdated === DidMutate.None:
                return DidMutate.None;
            case didMutateByAdded === DidMutate.Both ||
                didMutateByUpdated === DidMutate.Both:
                return DidMutate.Both;
            default:
                return DidMutate.EntitiesOnly;
        }
    }
    function merge(models, state) {
        models.sort(sort);
        const ids = [];
        let i = 0;
        let j = 0;
        while (i < models.length && j < state.ids.length) {
            const model = models[i];
            const modelId = selectIdValue(model, selectId);
            const entityId = state.ids[j];
            const entity = state.entities[entityId];
            if (sort(model, entity) <= 0) {
                ids.push(modelId);
                i++;
            }
            else {
                ids.push(entityId);
                j++;
            }
        }
        if (i < models.length) {
            state.ids = ids.concat(models.slice(i).map(selectId));
        }
        else {
            state.ids = ids.concat(state.ids.slice(j));
        }
        models.forEach((model, i) => {
            state.entities[selectId(model)] = model;
        });
    }
    return {
        removeOne,
        removeMany,
        removeAll,
        addOne: createStateOperator(addOneMutably),
        updateOne: createStateOperator(updateOneMutably),
        upsertOne: createStateOperator(upsertOneMutably),
        setAll: createStateOperator(setAllMutably),
        setOne: createStateOperator(setOneMutably),
        addMany: createStateOperator(addManyMutably),
        updateMany: createStateOperator(updateManyMutably),
        upsertMany: createStateOperator(upsertManyMutably),
        map: createStateOperator(mapMutably),
        mapOne: createStateOperator(mapOneMutably),
    };
}

function createEntityAdapter(options = {}) {
    const { selectId, sortComparer } = Object.assign({ sortComparer: false, selectId: (instance) => instance.id }, options);
    const stateFactory = createInitialStateFactory();
    const selectorsFactory = createSelectorsFactory();
    const stateAdapter = sortComparer
        ? createSortedStateAdapter(selectId, sortComparer)
        : createUnsortedStateAdapter(selectId);
    return Object.assign(Object.assign(Object.assign({ selectId,
        sortComparer }, stateFactory), selectorsFactory), stateAdapter);
}

class Dictionary {
}

/**
 * DO NOT EDIT
 *
 * This file is automatically generated at build
 */

/**
 * Generated bundle index. Do not edit.
 */

export { Dictionary, createEntityAdapter };
//# sourceMappingURL=ngrx-entity.js.map