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import {
createContext,
useContext,
useEffect,
useState,
type ReactNode,
} from "react";
import { APP_CONFIG } from "~/config/AppConfig";
export type Theme = "light" | "dark" | "system";
export type TableStyle = "regular" | "grouped" | "experimental_consolidated";
export type MapPositionMode = "gps" | "last";
interface SettingsContextProps {
theme: Theme;
setTheme: React.Dispatch<React.SetStateAction<Theme>>;
toggleTheme: () => void;
mapPositionMode: MapPositionMode;
setMapPositionMode: (mode: MapPositionMode) => void;
resolvedTheme: "light" | "dark";
}
const SettingsContext = createContext<SettingsContextProps | undefined>(
undefined
);
export const SettingsProvider = ({ children }: { children: ReactNode }) => {
//#region Theme
const getPreferredScheme = () => {
if (typeof window === "undefined" || !window.matchMedia) {
return "light" as const;
}
return window.matchMedia("(prefers-color-scheme: dark)").matches
? "dark"
: "light";
};
const [systemTheme, setSystemTheme] = useState<"light" | "dark">(
getPreferredScheme
);
const [theme, setTheme] = useState<Theme>(() => {
const savedTheme = localStorage.getItem("theme");
if (
savedTheme === "light" ||
savedTheme === "dark" ||
savedTheme === "system"
) {
return savedTheme;
}
return APP_CONFIG.defaultTheme;
});
useEffect(() => {
if (typeof window === "undefined" || !window.matchMedia) {
return;
}
const media = window.matchMedia("(prefers-color-scheme: dark)");
const handleChange = (event: MediaQueryListEvent) => {
setSystemTheme(event.matches ? "dark" : "light");
};
// Sync immediately in case theme changed before subscription
setSystemTheme(media.matches ? "dark" : "light");
if (media.addEventListener) {
media.addEventListener("change", handleChange);
} else {
media.addListener(handleChange);
}
return () => {
if (media.removeEventListener) {
media.removeEventListener("change", handleChange);
} else {
media.removeListener(handleChange);
}
};
}, []);
const resolvedTheme = theme === "system" ? systemTheme : theme;
const toggleTheme = () => {
setTheme((prevTheme) => {
if (prevTheme === "light") {
return "dark";
}
if (prevTheme === "dark") {
return "system";
}
return "light";
});
};
useEffect(() => {
document.documentElement.setAttribute("data-theme", resolvedTheme);
document.documentElement.style.colorScheme = resolvedTheme;
}, [resolvedTheme]);
useEffect(() => {
localStorage.setItem("theme", theme);
}, [theme]);
//#endregion
//#region Table Style
const [tableStyle, setTableStyle] = useState<TableStyle>(() => {
const savedTableStyle = localStorage.getItem("tableStyle");
if (savedTableStyle) {
return savedTableStyle as TableStyle;
}
return APP_CONFIG.defaultTableStyle;
});
const toggleTableStyle = () => {
setTableStyle((prevTableStyle) =>
prevTableStyle === "regular" ? "grouped" : "regular"
);
};
useEffect(() => {
localStorage.setItem("tableStyle", tableStyle);
}, [tableStyle]);
//#endregion
//#region Map Position Mode
const [mapPositionMode, setMapPositionMode] = useState<MapPositionMode>(
() => {
const saved = localStorage.getItem("mapPositionMode");
return saved === "last" || saved === "gps"
? (saved as MapPositionMode)
: APP_CONFIG.defaultMapPositionMode;
}
);
useEffect(() => {
localStorage.setItem("mapPositionMode", mapPositionMode);
}, [mapPositionMode]);
//#endregion
return (
<SettingsContext.Provider
value={{
theme,
setTheme,
toggleTheme,
mapPositionMode,
setMapPositionMode,
resolvedTheme,
}}
>
{children}
</SettingsContext.Provider>
);
};
export const useSettings = () => {
const context = useContext(SettingsContext);
if (!context) {
throw new Error("useSettings must be used within a SettingsProvider");
}
return context;
};
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