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: { ...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 {
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59 | ...state,
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60 | entities: clonedEntityState.entities,
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61 | };
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62 | }
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63 | return state;
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64 | };
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65 | }
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66 |
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67 | function selectIdValue(entity, selectId) {
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68 | const key = selectId(entity);
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69 | if (isDevMode() && key === undefined) {
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70 | 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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71 | }
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72 | return key;
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73 | }
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74 |
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75 | function createUnsortedStateAdapter(selectId) {
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76 | function addOneMutably(entity, state) {
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77 | const key = selectIdValue(entity, selectId);
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78 | if (key in state.entities) {
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79 | return DidMutate.None;
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80 | }
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81 | state.ids.push(key);
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82 | state.entities[key] = entity;
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83 | return DidMutate.Both;
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84 | }
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85 | function addManyMutably(entities, state) {
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86 | let didMutate = false;
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87 | for (const entity of entities) {
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88 | didMutate = addOneMutably(entity, state) !== DidMutate.None || didMutate;
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89 | }
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90 | return didMutate ? DidMutate.Both : DidMutate.None;
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91 | }
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92 | function setAllMutably(entities, state) {
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93 | state.ids = [];
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94 | state.entities = {};
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95 | addManyMutably(entities, state);
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96 | return DidMutate.Both;
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97 | }
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98 | function setOneMutably(entity, state) {
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99 | const key = selectIdValue(entity, selectId);
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100 | if (key in state.entities) {
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101 | state.entities[key] = entity;
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102 | return DidMutate.EntitiesOnly;
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103 | }
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104 | state.ids.push(key);
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105 | state.entities[key] = entity;
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106 | return DidMutate.Both;
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107 | }
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108 | function setManyMutably(entities, state) {
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109 | const didMutateSetOne = entities.map((entity) => setOneMutably(entity, state));
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110 | switch (true) {
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111 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.Both):
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112 | return DidMutate.Both;
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113 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.EntitiesOnly):
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114 | return DidMutate.EntitiesOnly;
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115 | default:
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116 | return DidMutate.None;
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117 | }
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118 | }
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119 | function removeOneMutably(key, state) {
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120 | return removeManyMutably([key], state);
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121 | }
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122 | function removeManyMutably(keysOrPredicate, state) {
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123 | const keys = keysOrPredicate instanceof Array
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124 | ? keysOrPredicate
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125 | : state.ids.filter((key) => keysOrPredicate(state.entities[key]));
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126 | const didMutate = keys
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127 | .filter((key) => key in state.entities)
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128 | .map((key) => delete state.entities[key]).length > 0;
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129 | if (didMutate) {
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130 | state.ids = state.ids.filter((id) => id in state.entities);
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131 | }
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132 | return didMutate ? DidMutate.Both : DidMutate.None;
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133 | }
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134 | function removeAll(state) {
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135 | return Object.assign({}, state, {
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136 | ids: [],
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137 | entities: {},
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138 | });
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139 | }
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140 | function takeNewKey(keys, update, state) {
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141 | const original = state.entities[update.id];
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142 | const updated = Object.assign({}, original, update.changes);
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143 | const newKey = selectIdValue(updated, selectId);
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144 | const hasNewKey = newKey !== update.id;
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145 | if (hasNewKey) {
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146 | keys[update.id] = newKey;
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147 | delete state.entities[update.id];
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148 | }
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149 | state.entities[newKey] = updated;
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150 | return hasNewKey;
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151 | }
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152 | function updateOneMutably(update, state) {
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153 | return updateManyMutably([update], state);
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154 | }
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155 | function updateManyMutably(updates, state) {
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156 | const newKeys = {};
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157 | updates = updates.filter((update) => update.id in state.entities);
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158 | const didMutateEntities = updates.length > 0;
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159 | if (didMutateEntities) {
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160 | const didMutateIds = updates.filter((update) => takeNewKey(newKeys, update, state)).length >
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161 | 0;
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162 | if (didMutateIds) {
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163 | state.ids = state.ids.map((id) => newKeys[id] || id);
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164 | return DidMutate.Both;
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165 | }
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166 | else {
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167 | return DidMutate.EntitiesOnly;
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168 | }
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169 | }
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170 | return DidMutate.None;
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171 | }
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172 | function mapMutably(map, state) {
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173 | const changes = state.ids.reduce((changes, id) => {
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174 | const change = map(state.entities[id]);
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175 | if (change !== state.entities[id]) {
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176 | changes.push({ id, changes: change });
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177 | }
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178 | return changes;
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179 | }, []);
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180 | const updates = changes.filter(({ id }) => id in state.entities);
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181 | return updateManyMutably(updates, state);
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182 | }
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183 | function mapOneMutably({ map, id }, state) {
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184 | const entity = state.entities[id];
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185 | if (!entity) {
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186 | return DidMutate.None;
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187 | }
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188 | const updatedEntity = map(entity);
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189 | return updateOneMutably({
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190 | id: id,
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191 | changes: updatedEntity,
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192 | }, state);
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193 | }
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194 | function upsertOneMutably(entity, state) {
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195 | return upsertManyMutably([entity], state);
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196 | }
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197 | function upsertManyMutably(entities, state) {
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198 | const added = [];
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199 | const updated = [];
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200 | for (const entity of entities) {
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201 | const id = selectIdValue(entity, selectId);
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202 | if (id in state.entities) {
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203 | updated.push({ id, changes: entity });
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204 | }
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205 | else {
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206 | added.push(entity);
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207 | }
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208 | }
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209 | const didMutateByUpdated = updateManyMutably(updated, state);
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210 | const didMutateByAdded = addManyMutably(added, state);
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211 | switch (true) {
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212 | case didMutateByAdded === DidMutate.None &&
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213 | didMutateByUpdated === DidMutate.None:
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214 | return DidMutate.None;
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215 | case didMutateByAdded === DidMutate.Both ||
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216 | didMutateByUpdated === DidMutate.Both:
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217 | return DidMutate.Both;
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218 | default:
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219 | return DidMutate.EntitiesOnly;
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220 | }
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221 | }
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222 | return {
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223 | removeAll,
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224 | addOne: createStateOperator(addOneMutably),
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225 | addMany: createStateOperator(addManyMutably),
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226 | setAll: createStateOperator(setAllMutably),
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227 | setOne: createStateOperator(setOneMutably),
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228 | setMany: createStateOperator(setManyMutably),
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229 | updateOne: createStateOperator(updateOneMutably),
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230 | updateMany: createStateOperator(updateManyMutably),
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231 | upsertOne: createStateOperator(upsertOneMutably),
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232 | upsertMany: createStateOperator(upsertManyMutably),
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233 | removeOne: createStateOperator(removeOneMutably),
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234 | removeMany: createStateOperator(removeManyMutably),
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235 | map: createStateOperator(mapMutably),
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236 | mapOne: createStateOperator(mapOneMutably),
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237 | };
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238 | }
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239 |
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240 | function createSortedStateAdapter(selectId, sort) {
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241 | const { removeOne, removeMany, removeAll } = createUnsortedStateAdapter(selectId);
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242 | function addOneMutably(entity, state) {
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243 | return addManyMutably([entity], state);
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244 | }
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245 | function addManyMutably(newModels, state) {
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246 | const models = newModels.filter((model) => !(selectIdValue(model, selectId) in state.entities));
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247 | if (models.length === 0) {
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248 | return DidMutate.None;
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249 | }
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250 | else {
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251 | merge(models, state);
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252 | return DidMutate.Both;
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253 | }
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254 | }
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255 | function setAllMutably(models, state) {
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256 | state.entities = {};
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257 | state.ids = [];
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258 | addManyMutably(models, state);
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259 | return DidMutate.Both;
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260 | }
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261 | function setOneMutably(entity, state) {
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262 | const id = selectIdValue(entity, selectId);
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263 | if (id in state.entities) {
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264 | state.ids = state.ids.filter((val) => val !== id);
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265 | merge([entity], state);
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266 | return DidMutate.Both;
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267 | }
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268 | else {
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269 | return addOneMutably(entity, state);
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270 | }
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271 | }
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272 | function setManyMutably(entities, state) {
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273 | const didMutateSetOne = entities.map((entity) => setOneMutably(entity, state));
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274 | switch (true) {
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275 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.Both):
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276 | return DidMutate.Both;
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277 | case didMutateSetOne.some((didMutate) => didMutate === DidMutate.EntitiesOnly):
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278 | return DidMutate.EntitiesOnly;
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279 | default:
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280 | return DidMutate.None;
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281 | }
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282 | }
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283 | function updateOneMutably(update, state) {
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284 | return updateManyMutably([update], state);
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285 | }
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286 | function takeUpdatedModel(models, update, state) {
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287 | if (!(update.id in state.entities)) {
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288 | return false;
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289 | }
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290 | const original = state.entities[update.id];
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291 | const updated = Object.assign({}, original, update.changes);
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292 | const newKey = selectIdValue(updated, selectId);
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293 | delete state.entities[update.id];
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294 | models.push(updated);
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295 | return newKey !== update.id;
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296 | }
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297 | function updateManyMutably(updates, state) {
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298 | const models = [];
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299 | const didMutateIds = updates.filter((update) => takeUpdatedModel(models, update, state))
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300 | .length > 0;
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301 | if (models.length === 0) {
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302 | return DidMutate.None;
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303 | }
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304 | else {
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305 | const originalIds = state.ids;
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306 | const updatedIndexes = [];
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307 | state.ids = state.ids.filter((id, index) => {
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308 | if (id in state.entities) {
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309 | return true;
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310 | }
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311 | else {
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312 | updatedIndexes.push(index);
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313 | return false;
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314 | }
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315 | });
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316 | merge(models, state);
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317 | if (!didMutateIds &&
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318 | updatedIndexes.every((i) => state.ids[i] === originalIds[i])) {
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319 | return DidMutate.EntitiesOnly;
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320 | }
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321 | else {
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322 | return DidMutate.Both;
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323 | }
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324 | }
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325 | }
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326 | function mapMutably(updatesOrMap, state) {
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327 | const updates = state.ids.reduce((changes, id) => {
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328 | const change = updatesOrMap(state.entities[id]);
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329 | if (change !== state.entities[id]) {
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330 | changes.push({ id, changes: change });
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331 | }
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332 | return changes;
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333 | }, []);
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334 | return updateManyMutably(updates, state);
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335 | }
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336 | function mapOneMutably({ map, id }, state) {
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337 | const entity = state.entities[id];
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338 | if (!entity) {
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339 | return DidMutate.None;
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340 | }
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341 | const updatedEntity = map(entity);
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342 | return updateOneMutably({
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343 | id: id,
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344 | changes: updatedEntity,
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345 | }, state);
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346 | }
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347 | function upsertOneMutably(entity, state) {
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348 | return upsertManyMutably([entity], state);
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349 | }
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350 | function upsertManyMutably(entities, state) {
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351 | const added = [];
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352 | const updated = [];
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353 | for (const entity of entities) {
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354 | const id = selectIdValue(entity, selectId);
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355 | if (id in state.entities) {
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356 | updated.push({ id, changes: entity });
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357 | }
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358 | else {
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359 | added.push(entity);
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360 | }
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361 | }
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362 | const didMutateByUpdated = updateManyMutably(updated, state);
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363 | const didMutateByAdded = addManyMutably(added, state);
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364 | switch (true) {
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365 | case didMutateByAdded === DidMutate.None &&
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366 | didMutateByUpdated === DidMutate.None:
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367 | return DidMutate.None;
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368 | case didMutateByAdded === DidMutate.Both ||
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369 | didMutateByUpdated === DidMutate.Both:
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370 | return DidMutate.Both;
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371 | default:
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372 | return DidMutate.EntitiesOnly;
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373 | }
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374 | }
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375 | function merge(models, state) {
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376 | models.sort(sort);
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377 | const ids = [];
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378 | let i = 0;
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379 | let j = 0;
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380 | while (i < models.length && j < state.ids.length) {
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381 | const model = models[i];
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382 | const modelId = selectIdValue(model, selectId);
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383 | const entityId = state.ids[j];
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384 | const entity = state.entities[entityId];
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385 | if (sort(model, entity) <= 0) {
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386 | ids.push(modelId);
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387 | i++;
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388 | }
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389 | else {
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390 | ids.push(entityId);
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391 | j++;
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392 | }
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393 | }
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394 | if (i < models.length) {
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395 | state.ids = ids.concat(models.slice(i).map(selectId));
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396 | }
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397 | else {
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398 | state.ids = ids.concat(state.ids.slice(j));
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399 | }
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400 | models.forEach((model, i) => {
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401 | state.entities[selectId(model)] = model;
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402 | });
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403 | }
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404 | return {
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405 | removeOne,
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406 | removeMany,
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407 | removeAll,
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408 | addOne: createStateOperator(addOneMutably),
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409 | updateOne: createStateOperator(updateOneMutably),
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410 | upsertOne: createStateOperator(upsertOneMutably),
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411 | setAll: createStateOperator(setAllMutably),
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412 | setOne: createStateOperator(setOneMutably),
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413 | setMany: createStateOperator(setManyMutably),
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414 | addMany: createStateOperator(addManyMutably),
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415 | updateMany: createStateOperator(updateManyMutably),
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416 | upsertMany: createStateOperator(upsertManyMutably),
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417 | map: createStateOperator(mapMutably),
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418 | mapOne: createStateOperator(mapOneMutably),
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419 | };
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420 | }
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421 |
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422 | function createEntityAdapter(options = {}) {
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423 | const { selectId, sortComparer } = {
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424 | selectId: options.selectId ?? ((entity) => entity.id),
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425 | sortComparer: options.sortComparer ?? false,
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426 | };
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427 | const stateFactory = createInitialStateFactory();
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428 | const selectorsFactory = createSelectorsFactory();
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429 | const stateAdapter = sortComparer
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430 | ? createSortedStateAdapter(selectId, sortComparer)
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431 | : createUnsortedStateAdapter(selectId);
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432 | return {
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433 | selectId,
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434 | sortComparer,
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435 | ...stateFactory,
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436 | ...selectorsFactory,
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437 | ...stateAdapter,
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438 | };
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439 | }
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440 |
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441 | class Dictionary {
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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 |
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448 |
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449 |
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450 |
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451 |
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452 |
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453 |
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454 | export { Dictionary, createEntityAdapter };
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455 |
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