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fix(site): fix floating number on duration fields #13209

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May 17, 2024
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Replace useState by useReducer
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BrunoQuaresma committed May 10, 2024
commit e6101cf18f77cf04ac3371ed3cfb07db36f12d37
77 changes: 54 additions & 23 deletions site/src/components/DurationField/DurationField.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ import FormHelperText from "@mui/material/FormHelperText";
import MenuItem from "@mui/material/MenuItem";
import Select from "@mui/material/Select";
import TextField, { type TextFieldProps } from "@mui/material/TextField";
import { useState, type FC, useEffect } from "react";
import { type FC, useEffect, useReducer } from "react";
import {
type TimeUnit,
durationInDays,
Expand All @@ -23,19 +23,62 @@ type State = {
durationFieldValue: string;
};

type Action =
| { type: "SYNC_WITH_PARENT"; parentValueMs: number }
| { type: "CHANGE_DURATION_FIELD_VALUE"; fieldValue: string }
| { type: "CHANGE_TIME_UNIT"; unit: TimeUnit };

const reducer = (state: State, action: Action): State => {
switch (action.type) {
case "SYNC_WITH_PARENT": {
return initState(action.parentValueMs);
}
case "CHANGE_DURATION_FIELD_VALUE": {
return {
...state,
durationFieldValue: action.fieldValue,
};
}
case "CHANGE_TIME_UNIT": {
const currentDurationMs = durationInMs(
state.durationFieldValue,
state.unit,
);

if (
action.unit === "days" &&
!canConvertDurationToDays(currentDurationMs)
) {
return state;
}
Comment on lines +48 to +53
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Just making sure: this is just a precaution/double-bookkeeping, right? Even though the UI has the disabled check to prevent the days unit from being selected at certain points, the reducer is also enforcing that the state update can't go through, in case the UI is set up wrong?

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@BrunoQuaresma BrunoQuaresma May 17, 2024

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Yes, I think it can be useful to have it in the reducer + disabled attribute. Wdyt?


return {
unit: action.unit,
durationFieldValue:
action.unit === "hours"
? durationInHours(currentDurationMs).toString()
: durationInDays(currentDurationMs).toString(),
};
}
default: {
return state;
}
}
};

export const DurationField: FC<DurationFieldProps> = (props) => {
const {
valueMs: parentValueMs,
onChange,
helperText,
...textFieldProps
} = props;
const [state, setState] = useState<State>(() => initState(parentValueMs));
const [state, dispatch] = useReducer(reducer, initState(parentValueMs));
const currentDurationMs = durationInMs(state.durationFieldValue, state.unit);

useEffect(() => {
if (parentValueMs !== currentDurationMs) {
setState(initState(parentValueMs));
dispatch({ type: "SYNC_WITH_PARENT", parentValueMs });
}
}, [currentDurationMs, parentValueMs]);

Expand All @@ -55,10 +98,10 @@ export const DurationField: FC<DurationFieldProps> = (props) => {
onChange={(e) => {
const durationFieldValue = e.currentTarget.value;

setState((state) => ({
...state,
durationFieldValue,
}));
dispatch({
type: "CHANGE_DURATION_FIELD_VALUE",
fieldValue: durationFieldValue,
});

const newDurationInMs = durationInMs(
durationFieldValue,
Expand All @@ -78,23 +121,15 @@ export const DurationField: FC<DurationFieldProps> = (props) => {
value={state.unit}
onChange={(e) => {
const unit = e.target.value as TimeUnit;
setState(() => ({
dispatch({
type: "CHANGE_TIME_UNIT",
unit,
durationFieldValue:
unit === "hours"
? durationInHours(currentDurationMs).toString()
: durationInDays(currentDurationMs).toString(),
}));
});
}}
inputProps={{ "aria-label": "Time unit" }}
IconComponent={KeyboardArrowDown}
>
<MenuItem
value="hours"
disabled={!canConvertDurationToHours(currentDurationMs)}
>
Hours
</MenuItem>
<MenuItem value="hours">Hours</MenuItem>
<MenuItem
value="days"
disabled={!canConvertDurationToDays(currentDurationMs)}
Expand Down Expand Up @@ -147,7 +182,3 @@ function daysToDuration(days: number): number {
function canConvertDurationToDays(duration: number): boolean {
return Number.isInteger(durationInDays(duration));
}

function canConvertDurationToHours(duration: number): boolean {
return Number.isInteger(durationInHours(duration));
}