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import ExpandMoreOutlinedIcon from "@mui/icons-material/ExpandMoreOutlined";
import {
Box,
FormControl,
ListItemIcon,
ListItemText,
MenuItem,
Select,
SelectChangeEvent,
Stack,
styled,
Typography,
useMediaQuery,
} from "@mui/material";
import { useMutation } from "@tanstack/react-query";
import CatalanFlagIcon from "components/Icons/CatalanFlagIcon";
import Snackbar from "components/Snackbar";
import { useAuthContext } from "features/auth/AuthProvider";
import { useWeblateStats } from "features/weblate/useWeblateStats";
import { useTranslation } from "i18n";
import { LANGUAGE_MAP } from "i18n/constants";
import { GLOBAL } from "i18n/namespaces";
import { useRouter } from "next/router"; // we'll use this to reload the components w/ changed languages
import { useState } from "react";
import { translateRoute } from "routes";
import { service } from "service";
import { theme } from "theme";
import { ALMOST_DONE_CUTOFF, HIDDEN_CUTOFF } from "./constants";
interface StyledMuiSelectProps {
displayMode?: "round" | "rect";
}
const StyledSelect = styled(Select, {
shouldForwardProp: (prop) => prop !== "displayMode",
})<StyledMuiSelectProps>(({ theme, displayMode }) => ({
borderRadius: displayMode === "round" ? 999 : theme.shape.borderRadius,
"& .MuiSelect-icon": {
color: theme.palette.text.primary,
fontSize: "1.25rem",
top: "50%",
transform: "translateY(-50%)",
right: 10,
},
height: 41.25,
}));
type LanguagePickerSelectProps = {
displayMode?: "round" | "rect";
};
export default function LanguagePickerSelect({
displayMode = "round",
}: LanguagePickerSelectProps) {
const router = useRouter();
const { asPath, locale, pathname } = router;
const { authState } = useAuthContext();
const isAuthenticated = authState.authenticated;
const isMobile = useMediaQuery(theme.breakpoints.down("md"));
const { t } = useTranslation([GLOBAL]);
const { data: languages, isLoading, error } = useWeblateStats();
const [isOpen, setIsOpen] = useState(false);
const { mutate: changeLanguageMutation } = useMutation({
mutationFn: (newLanguage: string) =>
service.account.changeLanguage(newLanguage),
});
const handleChange = async (event: SelectChangeEvent<unknown>) => {
const newLocale = event.target.value as string;
if (isAuthenticated) {
await changeLanguageMutation(newLocale);
}
// Push new route with updated locale, keep the current asPath for display
router.push({ pathname }, asPath, { locale: newLocale });
};
const handleTranslationProgressClick = (e: React.MouseEvent) => {
e.stopPropagation();
setIsOpen(false);
router.push(translateRoute);
};
const renderFlag = (flagCode: string, percent?: number) => {
const commonStyles = {
filter:
percent && percent < ALMOST_DONE_CUTOFF ? "grayscale(100%)" : "none",
opacity: percent && percent < ALMOST_DONE_CUTOFF ? 0.4 : 1,
} as const;
Iif (flagCode === "CAT") {
return (
<CatalanFlagIcon
sx={{ width: 25, height: 18.75, ...commonStyles }}
aria-label="Catalan flag"
/>
);
}
return (
<img
alt={`${flagCode} flag`}
src={`https://cdn.couchers.org/img/language-icons/${flagCode}.svg`}
style={{ width: 25, ...commonStyles }}
/>
);
};
// Languages with < 20% translated are hidden
// Languages with < 80% translated are greyed out
const availableLanguages = languages
?.filter(
(language) =>
LANGUAGE_MAP[language.code.replace("_", "-")] &&
language.translated_percent > HIDDEN_CUTOFF,
)
// sort by translated percent with the >= 80 grouped at the top, then sorted alphabetically by code
.sort((a, b) => {
Iif (
a.translated_percent >= ALMOST_DONE_CUTOFF &&
b.translated_percent < ALMOST_DONE_CUTOFF
)
return -1;
if (
a.translated_percent < ALMOST_DONE_CUTOFF &&
b.translated_percent >= ALMOST_DONE_CUTOFF
)
return 1;
return a.code.localeCompare(b.code);
});
const menuItems: React.ReactNode[] | undefined = isLoading
? []
: availableLanguages?.map((language) => {
// language.code has underscore, we need to change to hyphen
const languageCode = language.code.replace("_", "-");
return (
<MenuItem
key={languageCode}
value={languageCode}
sx={{
display: "flex",
alignItems: "center",
gap: theme.spacing(1),
"& .Mui-selected": {
backgroundColor: theme.palette.action.selected,
},
"& .Mui-selected:hover": {
backgroundColor: theme.palette.action.hover,
},
}}
>
<Stack
sx={{ width: "100%" }}
direction="row"
alignItems="center"
justifyContent="space-between"
>
<Stack direction="row">
<ListItemIcon>
{renderFlag(
LANGUAGE_MAP[languageCode].flagIconCode,
language.translated_percent,
)}
</ListItemIcon>
<ListItemText
sx={{
opacity:
language.translated_percent < ALMOST_DONE_CUTOFF
? 0.4
: 1,
fontWeight: "bold",
display: "inline",
}}
>
{languageCode.toUpperCase()}
</ListItemText>
</Stack>
<div>
{locale === languageCode && (
<CheckIcon fontSize="small" sx={{ color: "#00a69a" }} />
)}
</div>
</Stack>
</MenuItem>
);
});
// renderValue function for what should be rendered after a selection is made
const renderValue = (value: unknown) => {
const selected = value as string;
const selectedDisplay = (
<Box
sx={{
display: "flex",
alignItems: "center",
gap: 1,
pl: 1,
color: "#666666",
fontWeight: "bold",
}}
>
{renderFlag(LANGUAGE_MAP[selected].flagIconCode)}
{selected.toUpperCase()}
</Box>
);
return selectedDisplay;
};
return (
<>
{error && (
<Snackbar severity="error">
{t("global:language_preference.error_loading_languages")}
</Snackbar>
)}
<Box sx={{ minWidth: 40 }}>
<FormControl
variant="outlined"
sx={{
width:
displayMode === "round"
? "fit-content"
: !isMobile
? "241px"
: "100%",
}}
>
{displayMode === "round" ? (
<StyledSelect
id="language-select"
value={isLoading ? "" : locale || ""}
displayMode={displayMode}
onChange={handleChange}
// Use renderValue to display the selected language in collapsed state
renderValue={renderValue}
IconComponent={ExpandMoreOutlinedIcon}
disabled={isLoading}
open={isOpen}
onOpen={() => setIsOpen(true)}
onClose={() => setIsOpen(false)}
>
{menuItems}
<Box
key="translation-progress"
onClick={handleTranslationProgressClick}
sx={{
borderTop: `1px solid ${theme.palette.divider}`,
mt: 1,
pt: 1,
px: 2,
cursor: "pointer",
"&:hover": {
backgroundColor: "action.hover",
},
}}
>
<Typography
color="primary"
sx={{ fontWeight: "bold" }}
onClick={handleTranslationProgressClick}
>
{t("global:language_preference.translation_progress.title")}
</Typography>
</Box>
</StyledSelect>
) : (
<StyledSelect
id="newLanguage"
displayMode={displayMode}
value={isLoading ? "" : locale}
placeholder={t("global:language_preference.select_language")}
fullWidth={isMobile}
onChange={handleChange}
disabled={isLoading}
open={isOpen}
onOpen={() => setIsOpen(true)}
onClose={() => setIsOpen(false)}
>
{menuItems}
<Box
onClick={handleTranslationProgressClick}
sx={{
borderTop: `1px solid ${theme.palette.divider}`,
mt: 1,
pt: 1,
px: 2,
py: 1,
cursor: "pointer",
"&:hover": {
backgroundColor: "action.hover",
},
}}
>
<Typography
variant="body2"
color="primary"
onClick={handleTranslationProgressClick}
>
{t("global:language_preference.translation_progress.title")}
</Typography>
</Box>
</StyledSelect>
)}
</FormControl>
</Box>
</>
);
}
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