demeter

Autonomous Hydroponic Intelligence
git clone https://github.com/maydayv7/demeter

useSettings.js (1752B)

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
import React, { createContext, useContext, useState, useEffect } from "react";

const DEFAULTS = {
  userName: "Rajesh Rai",
  userDesignation: "Farm Owner",
  userInitials: "R",
  theme: "dark",
  language: "en",
  maxResultsPerPage: 12,
  alertsShowAcked: false,
  compactMode: false,
  onboardingDone: false,
  historyLogLimit: 20,
};

const SettingsContext = createContext();

const STORAGE_KEY = "demeter_settings";

export function SettingsProvider({ children }) {
  const [settings, setSettings] = useState(() => {
    try {
      const stored = localStorage.getItem(STORAGE_KEY);
      return stored ? { ...DEFAULTS, ...JSON.parse(stored) } : DEFAULTS;
    } catch {
      return DEFAULTS;
    }
  });

  // Persist on change
  useEffect(() => {
    localStorage.setItem(STORAGE_KEY, JSON.stringify(settings));
  }, [settings]);

  // Apply theme to <html>
  useEffect(() => {
    const theme =
      settings.theme === "auto"
        ? window.matchMedia("(prefers-color-scheme: dark)").matches
          ? "dark"
          : "light"
        : settings.theme;
    document.documentElement.setAttribute("data-theme", theme);
  }, [settings.theme]);

  // Use Noto Sans for Hindi
  useEffect(() => {
    if (settings.language === "hi") {
      document.documentElement.setAttribute("data-lang", "hi");
    } else {
      document.documentElement.setAttribute("data-lang", "en");
    }
  }, [settings.language]);

  const update = (key, value) =>
    setSettings((prev) => ({ ...prev, [key]: value }));

  const reset = () => setSettings(DEFAULTS);

  return (
    <SettingsContext.Provider value={{ settings, update, reset }}>
      {children}
    </SettingsContext.Provider>
  );
}

export const useSettings = () => useContext(SettingsContext);