1 | import { createSelector } from '@ngrx/store';
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2 | import { isDevMode } from '@angular/core';
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3 |
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4 | function getInitialEntityState() {
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5 | return {
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6 | ids: [],
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7 | entities: {},
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8 | };
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9 | }
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10 | function createInitialStateFactory() {
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11 | function getInitialState(additionalState = {}) {
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12 | return Object.assign(getInitialEntityState(), additionalState);
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13 | }
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14 | return { getInitialState };
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15 | }
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16 |
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17 | function createSelectorsFactory() {
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18 | function getSelectors(selectState) {
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19 | const selectIds = (state) => state.ids;
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20 | const selectEntities = (state) => state.entities;
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21 | const selectAll = createSelector(selectIds, selectEntities, (ids, entities) => ids.map((id) => entities[id]));
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22 | const selectTotal = createSelector(selectIds, (ids) => ids.length);
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23 | if (!selectState) {
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24 | return {
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25 | selectIds,
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26 | selectEntities,
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27 | selectAll,
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28 | selectTotal,
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29 | };
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30 | }
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31 | return {
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32 | selectIds: createSelector(selectState, selectIds),
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33 | selectEntities: createSelector(selectState, selectEntities),
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34 | selectAll: createSelector(selectState, selectAll),
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35 | selectTotal: createSelector(selectState, selectTotal),
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36 | };
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37 | }
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38 | return { getSelectors };
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39 | }
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40 |
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41 | var DidMutate;
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42 | (function (DidMutate) {
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43 | DidMutate[DidMutate["EntitiesOnly"] = 0] = "EntitiesOnly";
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44 | DidMutate[DidMutate["Both"] = 1] = "Both";
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45 | DidMutate[DidMutate["None"] = 2] = "None";
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46 | })(DidMutate || (DidMutate = {}));
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47 | function createStateOperator(mutator) {
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48 | return function operation(arg, state) {
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49 | const clonedEntityState = {
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50 | ids: [...state.ids],
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51 | entities: Object.assign({}, state.entities),
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52 | };
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53 | const didMutate = mutator(arg, clonedEntityState);
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54 | if (didMutate === DidMutate.Both) {
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55 | return Object.assign({}, state, clonedEntityState);
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56 | }
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57 | if (didMutate === DidMutate.EntitiesOnly) {
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58 | return Object.assign(Object.assign({}, state), { entities: clonedEntityState.entities });
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59 | }
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60 | return state;
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61 | };
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62 | }
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63 |
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64 | function selectIdValue(entity, selectId) {
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65 | const key = selectId(entity);
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66 | if (isDevMode() && key === undefined) {
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67 | 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());
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68 | }
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69 | return key;
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70 | }
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71 |
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72 | function createUnsortedStateAdapter(selectId) {
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73 | function addOneMutably(entity, state) {
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74 | const key = selectIdValue(entity, selectId);
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75 | if (key in state.entities) {
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76 | return DidMutate.None;
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77 | }
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78 | state.ids.push(key);
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79 | state.entities[key] = entity;
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80 | return DidMutate.Both;
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81 | }
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82 | function addManyMutably(entities, state) {
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83 | let didMutate = false;
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84 | for (const entity of entities) {
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85 | didMutate = addOneMutably(entity, state) !== DidMutate.None || didMutate;
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86 | }
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87 | return didMutate ? DidMutate.Both : DidMutate.None;
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88 | }
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89 | function setAllMutably(entities, state) {
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90 | state.ids = [];
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91 | state.entities = {};
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92 | addManyMutably(entities, state);
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93 | return DidMutate.Both;
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94 | }
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95 | function setOneMutably(entity, state) {
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96 | const key = selectIdValue(entity, selectId);
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97 | if (key in state.entities) {
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98 | state.entities[key] = entity;
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99 | return DidMutate.EntitiesOnly;
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100 | }
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101 | state.ids.push(key);
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102 | state.entities[key] = entity;
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103 | return DidMutate.Both;
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104 | }
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105 | function setManyMutably(entities, state) {
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106 | const didMutateSetOne = entities.map((entity) => setOneMutably(entity, state));
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107 | switch (true) {
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108 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.Both):
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109 | return DidMutate.Both;
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110 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.EntitiesOnly):
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111 | return DidMutate.EntitiesOnly;
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112 | default:
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113 | return DidMutate.None;
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114 | }
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115 | }
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116 | function removeOneMutably(key, state) {
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117 | return removeManyMutably([key], state);
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118 | }
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119 | function removeManyMutably(keysOrPredicate, state) {
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120 | const keys = keysOrPredicate instanceof Array
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121 | ? keysOrPredicate
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122 | : state.ids.filter((key) => keysOrPredicate(state.entities[key]));
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123 | const didMutate = keys
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124 | .filter((key) => key in state.entities)
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125 | .map((key) => delete state.entities[key]).length > 0;
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126 | if (didMutate) {
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127 | state.ids = state.ids.filter((id) => id in state.entities);
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128 | }
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129 | return didMutate ? DidMutate.Both : DidMutate.None;
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130 | }
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131 | function removeAll(state) {
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132 | return Object.assign({}, state, {
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133 | ids: [],
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134 | entities: {},
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135 | });
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136 | }
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137 | function takeNewKey(keys, update, state) {
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138 | const original = state.entities[update.id];
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139 | const updated = Object.assign({}, original, update.changes);
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140 | const newKey = selectIdValue(updated, selectId);
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141 | const hasNewKey = newKey !== update.id;
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142 | if (hasNewKey) {
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143 | keys[update.id] = newKey;
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144 | delete state.entities[update.id];
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145 | }
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146 | state.entities[newKey] = updated;
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147 | return hasNewKey;
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148 | }
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149 | function updateOneMutably(update, state) {
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150 | return updateManyMutably([update], state);
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151 | }
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152 | function updateManyMutably(updates, state) {
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153 | const newKeys = {};
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154 | updates = updates.filter((update) => update.id in state.entities);
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155 | const didMutateEntities = updates.length > 0;
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156 | if (didMutateEntities) {
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157 | const didMutateIds = updates.filter((update) => takeNewKey(newKeys, update, state)).length >
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158 | 0;
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159 | if (didMutateIds) {
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160 | state.ids = state.ids.map((id) => newKeys[id] || id);
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161 | return DidMutate.Both;
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162 | }
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163 | else {
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164 | return DidMutate.EntitiesOnly;
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165 | }
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166 | }
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167 | return DidMutate.None;
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168 | }
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169 | function mapMutably(map, state) {
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170 | const changes = state.ids.reduce((changes, id) => {
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171 | const change = map(state.entities[id]);
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172 | if (change !== state.entities[id]) {
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173 | changes.push({ id, changes: change });
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174 | }
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175 | return changes;
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176 | }, []);
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177 | const updates = changes.filter(({ id }) => id in state.entities);
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178 | return updateManyMutably(updates, state);
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179 | }
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180 | function mapOneMutably({ map, id }, state) {
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181 | const entity = state.entities[id];
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182 | if (!entity) {
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183 | return DidMutate.None;
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184 | }
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185 | const updatedEntity = map(entity);
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186 | return updateOneMutably({
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187 | id: id,
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188 | changes: updatedEntity,
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189 | }, state);
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190 | }
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191 | function upsertOneMutably(entity, state) {
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192 | return upsertManyMutably([entity], state);
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193 | }
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194 | function upsertManyMutably(entities, state) {
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195 | const added = [];
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196 | const updated = [];
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197 | for (const entity of entities) {
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198 | const id = selectIdValue(entity, selectId);
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199 | if (id in state.entities) {
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200 | updated.push({ id, changes: entity });
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201 | }
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202 | else {
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203 | added.push(entity);
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204 | }
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205 | }
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206 | const didMutateByUpdated = updateManyMutably(updated, state);
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207 | const didMutateByAdded = addManyMutably(added, state);
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208 | switch (true) {
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209 | case didMutateByAdded === DidMutate.None &&
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210 | didMutateByUpdated === DidMutate.None:
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211 | return DidMutate.None;
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212 | case didMutateByAdded === DidMutate.Both ||
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213 | didMutateByUpdated === DidMutate.Both:
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214 | return DidMutate.Both;
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215 | default:
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216 | return DidMutate.EntitiesOnly;
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217 | }
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218 | }
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219 | return {
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220 | removeAll,
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221 | addOne: createStateOperator(addOneMutably),
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222 | addMany: createStateOperator(addManyMutably),
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223 | setAll: createStateOperator(setAllMutably),
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224 | setOne: createStateOperator(setOneMutably),
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225 | setMany: createStateOperator(setManyMutably),
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226 | updateOne: createStateOperator(updateOneMutably),
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227 | updateMany: createStateOperator(updateManyMutably),
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228 | upsertOne: createStateOperator(upsertOneMutably),
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229 | upsertMany: createStateOperator(upsertManyMutably),
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230 | removeOne: createStateOperator(removeOneMutably),
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231 | removeMany: createStateOperator(removeManyMutably),
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232 | map: createStateOperator(mapMutably),
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233 | mapOne: createStateOperator(mapOneMutably),
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234 | };
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235 | }
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236 |
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237 | function createSortedStateAdapter(selectId, sort) {
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238 | const { removeOne, removeMany, removeAll } = createUnsortedStateAdapter(selectId);
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239 | function addOneMutably(entity, state) {
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240 | return addManyMutably([entity], state);
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241 | }
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242 | function addManyMutably(newModels, state) {
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243 | const models = newModels.filter((model) => !(selectIdValue(model, selectId) in state.entities));
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244 | if (models.length === 0) {
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245 | return DidMutate.None;
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246 | }
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247 | else {
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248 | merge(models, state);
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249 | return DidMutate.Both;
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250 | }
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251 | }
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252 | function setAllMutably(models, state) {
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253 | state.entities = {};
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254 | state.ids = [];
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255 | addManyMutably(models, state);
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256 | return DidMutate.Both;
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257 | }
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258 | function setOneMutably(entity, state) {
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259 | const id = selectIdValue(entity, selectId);
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260 | if (id in state.entities) {
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261 | state.ids = state.ids.filter((val) => val !== id);
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262 | merge([entity], state);
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263 | return DidMutate.Both;
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264 | }
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265 | else {
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266 | return addOneMutably(entity, state);
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267 | }
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268 | }
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269 | function setManyMutably(entities, state) {
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270 | const didMutateSetOne = entities.map((entity) => setOneMutably(entity, state));
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271 | switch (true) {
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272 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.Both):
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273 | return DidMutate.Both;
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274 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.EntitiesOnly):
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275 | return DidMutate.EntitiesOnly;
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276 | default:
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277 | return DidMutate.None;
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278 | }
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279 | }
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280 | function updateOneMutably(update, state) {
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281 | return updateManyMutably([update], state);
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282 | }
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283 | function takeUpdatedModel(models, update, state) {
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284 | if (!(update.id in state.entities)) {
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285 | return false;
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286 | }
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287 | const original = state.entities[update.id];
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288 | const updated = Object.assign({}, original, update.changes);
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289 | const newKey = selectIdValue(updated, selectId);
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290 | delete state.entities[update.id];
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291 | models.push(updated);
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292 | return newKey !== update.id;
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293 | }
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294 | function updateManyMutably(updates, state) {
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295 | const models = [];
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296 | const didMutateIds = updates.filter((update) => takeUpdatedModel(models, update, state))
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297 | .length > 0;
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298 | if (models.length === 0) {
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299 | return DidMutate.None;
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300 | }
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301 | else {
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302 | const originalIds = state.ids;
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303 | const updatedIndexes = [];
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304 | state.ids = state.ids.filter((id, index) => {
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305 | if (id in state.entities) {
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306 | return true;
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307 | }
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308 | else {
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309 | updatedIndexes.push(index);
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310 | return false;
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311 | }
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312 | });
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313 | merge(models, state);
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314 | if (!didMutateIds &&
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315 | updatedIndexes.every((i) => state.ids[i] === originalIds[i])) {
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316 | return DidMutate.EntitiesOnly;
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317 | }
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318 | else {
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319 | return DidMutate.Both;
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320 | }
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321 | }
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322 | }
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323 | function mapMutably(updatesOrMap, state) {
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324 | const updates = state.ids.reduce((changes, id) => {
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325 | const change = updatesOrMap(state.entities[id]);
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326 | if (change !== state.entities[id]) {
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327 | changes.push({ id, changes: change });
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328 | }
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329 | return changes;
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330 | }, []);
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331 | return updateManyMutably(updates, state);
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332 | }
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333 | function mapOneMutably({ map, id }, state) {
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334 | const entity = state.entities[id];
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335 | if (!entity) {
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336 | return DidMutate.None;
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337 | }
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338 | const updatedEntity = map(entity);
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339 | return updateOneMutably({
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340 | id: id,
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341 | changes: updatedEntity,
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342 | }, state);
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343 | }
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344 | function upsertOneMutably(entity, state) {
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345 | return upsertManyMutably([entity], state);
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346 | }
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347 | function upsertManyMutably(entities, state) {
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348 | const added = [];
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349 | const updated = [];
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350 | for (const entity of entities) {
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351 | const id = selectIdValue(entity, selectId);
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352 | if (id in state.entities) {
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353 | updated.push({ id, changes: entity });
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354 | }
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355 | else {
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356 | added.push(entity);
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357 | }
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358 | }
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359 | const didMutateByUpdated = updateManyMutably(updated, state);
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360 | const didMutateByAdded = addManyMutably(added, state);
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361 | switch (true) {
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362 | case didMutateByAdded === DidMutate.None &&
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363 | didMutateByUpdated === DidMutate.None:
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364 | return DidMutate.None;
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365 | case didMutateByAdded === DidMutate.Both ||
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366 | didMutateByUpdated === DidMutate.Both:
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367 | return DidMutate.Both;
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368 | default:
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369 | return DidMutate.EntitiesOnly;
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370 | }
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371 | }
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372 | function merge(models, state) {
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373 | models.sort(sort);
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374 | const ids = [];
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375 | let i = 0;
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376 | let j = 0;
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377 | while (i < models.length && j < state.ids.length) {
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378 | const model = models[i];
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379 | const modelId = selectIdValue(model, selectId);
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380 | const entityId = state.ids[j];
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381 | const entity = state.entities[entityId];
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382 | if (sort(model, entity) <= 0) {
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383 | ids.push(modelId);
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384 | i++;
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385 | }
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386 | else {
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387 | ids.push(entityId);
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388 | j++;
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389 | }
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390 | }
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391 | if (i < models.length) {
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392 | state.ids = ids.concat(models.slice(i).map(selectId));
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393 | }
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394 | else {
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395 | state.ids = ids.concat(state.ids.slice(j));
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396 | }
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397 | models.forEach((model, i) => {
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398 | state.entities[selectId(model)] = model;
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399 | });
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400 | }
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401 | return {
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402 | removeOne,
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403 | removeMany,
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404 | removeAll,
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405 | addOne: createStateOperator(addOneMutably),
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406 | updateOne: createStateOperator(updateOneMutably),
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407 | upsertOne: createStateOperator(upsertOneMutably),
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408 | setAll: createStateOperator(setAllMutably),
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409 | setOne: createStateOperator(setOneMutably),
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410 | setMany: createStateOperator(setManyMutably),
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411 | addMany: createStateOperator(addManyMutably),
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412 | updateMany: createStateOperator(updateManyMutably),
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413 | upsertMany: createStateOperator(upsertManyMutably),
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414 | map: createStateOperator(mapMutably),
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415 | mapOne: createStateOperator(mapOneMutably),
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416 | };
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417 | }
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418 |
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419 | function createEntityAdapter(options = {}) {
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420 | var _a, _b;
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421 | const { selectId, sortComparer } = {
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422 | selectId: (_a = options.selectId) !== null && _a !== void 0 ? _a : ((entity) => entity.id),
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423 | sortComparer: (_b = options.sortComparer) !== null && _b !== void 0 ? _b : false,
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424 | };
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425 | const stateFactory = createInitialStateFactory();
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426 | const selectorsFactory = createSelectorsFactory();
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427 | const stateAdapter = sortComparer
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428 | ? createSortedStateAdapter(selectId, sortComparer)
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429 | : createUnsortedStateAdapter(selectId);
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430 | return Object.assign(Object.assign(Object.assign({ selectId,
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431 | sortComparer }, stateFactory), selectorsFactory), stateAdapter);
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432 | }
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433 |
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434 | class Dictionary {
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435 | }
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436 |
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437 |
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438 |
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439 |
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440 |
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441 |
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442 |
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443 |
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444 |
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445 |
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446 |
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447 | export { Dictionary, createEntityAdapter };
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448 |
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