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import fuzzy from 'fuzzy';
import users from '../users';
const DEFAULT_STATE = {
results: [
's/18562',
],
searchText: '',
selectedResult: null,
isExactMatch: false,
};
function getSearchResults(allUsers, query) {
if (query.trim() === '') {
return [];
}
const allResults = fuzzy.filter(query, allUsers, {
extract: user => user.value,
});
const firstResults = allResults.splice(0, 4);
const userIds = firstResults.map(result => result.original.id);
return userIds;
}
const search = (state = DEFAULT_STATE, action) => {
switch (action.type) {
case 'SEARCH/INPUT_CHANGE': {
const { searchText } = action;
const results = getSearchResults(users.allUsers, action.searchText);
let selectedResult = null;
let isExactMatch = false;
// Is the typed value exactly the same as the first result? Then show the
// appropiate icon instead of the generic search icon.
if ((results.length === 1) && (action.searchText === users.byId[results[0]].value)) {
[selectedResult] = results;
isExactMatch = true;
}
return {
...state,
results,
searchText,
selectedResult,
isExactMatch,
};
}
case 'SEARCH/CHANGE_SELECTED_RESULT': {
const { results, isExactMatch } = state;
if (isExactMatch) return state;
const prevSelectedResult = state.selectedResult;
const prevSelectedResultIndex = results.indexOf(prevSelectedResult);
let nextSelectedResultIndex =
prevSelectedResultIndex + action.relativeChange;
if (nextSelectedResultIndex < -1) {
nextSelectedResultIndex = results.length - 1;
} else if (nextSelectedResultIndex > results.length - 1) {
nextSelectedResultIndex = -1;
}
const nextSelectedResult =
nextSelectedResultIndex === -1
? null
: results[nextSelectedResultIndex];
return {
...state,
selectedResult: nextSelectedResult,
};
}
default:
return state;
}
};
export default search;
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