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const { Promise, Immutable } = require('gitbook-core');
const { List } = Immutable;
const TYPES = require('./types');
/**
* Start a search query
* @param {String} q
* @return {Action}
*/
function query(q) {
if (!q) {
return clear();
}
return (dispatch, getState) => {
const { handlers } = getState().search;
dispatch({ type: TYPES.UPDATE_QUERY, query: q });
return Promise.reduce(handlers, (results, handler) => {
return Promise(handler(q))
.then(handlerResults => results.concat(handlerResults));
}, List())
.then(results => {
dispatch({ type: TYPES.UPDATE_RESULTS, query: q });
});
};
}
/**
* Clear the whole search
* @return {Action}
*/
function clear() {
return { type: TYPES.CLEAR };
}
/**
* Register a search handler
* @param {String} name
* @param {Function} handler
* @return {Action}
*/
function registerHandler(name, handler) {
return { type: TYPES.REGISTER_HANDLER, name, handler };
}
/**
* Unregister a search handler
* @param {String} name
* @return {Action}
*/
function unregisterHandler(name) {
return { type: TYPES.UNREGISTER_HANDLER, name };
}
module.exports = {
clear,
query,
registerHandler,
unregisterHandler
};
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