{
  "version": 3,
  "sources": ["../../src/store/reducer.ts"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { combineReducers } from '@wordpress/data';\n/**\n * Internal dependencies\n */\nimport type { StoreState, WPPreferencesPersistenceLayer } from './types';\nimport type { AvailableActions } from './actions';\n\n/**\n * Reducer returning the defaults for user preferences.\n *\n * This is kept intentionally separate from the preferences\n * themselves so that defaults are not persisted.\n *\n * @param state  Current state.\n * @param action Dispatched action.\n *\n * @return Updated state.\n */\nexport function defaults(\n\tstate: StoreState[ 'defaults' ] = {},\n\taction: AvailableActions\n): StoreState[ 'defaults' ] {\n\tif ( action.type === 'SET_PREFERENCE_DEFAULTS' ) {\n\t\tconst { scope, defaults: values } = action;\n\t\treturn {\n\t\t\t...state,\n\t\t\t[ scope ]: {\n\t\t\t\t...state[ scope ],\n\t\t\t\t...values,\n\t\t\t},\n\t\t};\n\t}\n\n\treturn state;\n}\n\ntype PreferencesReducer = (\n\tstate: StoreState[ 'preferences' ],\n\taction: AvailableActions\n) => StoreState[ 'preferences' ];\n\n/**\n * Higher order reducer that does the following:\n * - Merges any data from the persistence layer into the state when the\n *   `SET_PERSISTENCE_LAYER` action is received.\n * - Passes any preferences changes to the persistence layer.\n *\n * @param reducer The preferences reducer.\n *\n * @return The enhanced reducer.\n */\nfunction withPersistenceLayer( reducer: PreferencesReducer ) {\n\tlet persistenceLayer: WPPreferencesPersistenceLayer< any >;\n\n\treturn ( state: StoreState[ 'preferences' ], action: AvailableActions ) => {\n\t\t// Set up the persistence layer, and return the persisted data\n\t\t// as the state.\n\t\tif ( action.type === 'SET_PERSISTENCE_LAYER' ) {\n\t\t\tconst { persistenceLayer: persistence, persistedData } = action;\n\t\t\tpersistenceLayer = persistence;\n\t\t\treturn persistedData;\n\t\t}\n\n\t\tconst nextState = reducer( state, action );\n\t\tif ( action.type === 'SET_PREFERENCE_VALUE' ) {\n\t\t\tpersistenceLayer?.set( nextState );\n\t\t}\n\n\t\treturn nextState;\n\t};\n}\n\n/**\n * Reducer returning the user preferences.\n *\n * @param {Object} state  Current state.\n * @param {Object} action Dispatched action.\n *\n * @return {Object} Updated state.\n */\nexport const preferences = withPersistenceLayer( ( state = {}, action ) => {\n\tif ( action.type === 'SET_PREFERENCE_VALUE' ) {\n\t\tconst { scope, name, value } = action;\n\t\treturn {\n\t\t\t...state,\n\t\t\t[ scope ]: {\n\t\t\t\t...state[ scope ],\n\t\t\t\t[ name ]: value,\n\t\t\t},\n\t\t};\n\t}\n\n\treturn state;\n} );\n\nexport default combineReducers( {\n\tdefaults,\n\tpreferences,\n} );\n"],
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