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import { createSelector } from 'reselect';
import { DispatchFn, GetStateFn, Log, State } from 'src/store/types';
const LogSize = 300;
const getLogs = (s: State) => s.logs.logs;
const getTail = (s: State) => s.logs.tail;
export const getSearchText = (s: State) => s.logs.searchText;
export const getLogsForDisplay = createSelector(
getLogs,
getTail,
getSearchText,
(logs, tail, searchText) => {
const x = [];
for (let i = tail; i >= 0; i--) {
x.push(logs[i]);
}
if (logs.length === LogSize) {
for (let i = LogSize - 1; i > tail; i--) {
x.push(logs[i]);
}
}
if (searchText === '') return x;
return x.filter((r) => r.payload.toLowerCase().indexOf(searchText) >= 0);
}
);
export function updateSearchText(text: string) {
return (dispatch: DispatchFn) => {
dispatch('logsUpdateSearchText', (s) => {
s.logs.searchText = text.toLowerCase();
});
};
}
export function appendLog(log: Log) {
return (dispatch: DispatchFn, getState: GetStateFn) => {
const s = getState();
const logs = getLogs(s);
const tailCurr = getTail(s);
const tail = tailCurr >= LogSize - 1 ? 0 : tailCurr + 1;
// mutate intentionally for performance
logs[tail] = log;
dispatch('logsAppendLog', (s: State) => {
s.logs.tail = tail;
});
};
}
export const initialState = {
searchText: '',
logs: [],
// tail's initial value must be -1
tail: -1,
};
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