File size: 2,885 Bytes
65d68f5 | 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 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | /**
* Mode Storage
* Safe localStorage wrapper for mode persistence
* Handles localStorage failures gracefully
*/
export type DocDoeMode = "tuition" | "study-chat" | "first-hour" | "learn-anything" | "exam-coach" | "home";
const STORAGE_KEYS = {
MODE: "docdoe_selected_mode",
LAST_QUERY: "docdoe_last_query",
LAST_EXAM_DATE: "docdoe_last_exam_date",
LAST_DURATION: "docdoe_last_duration",
} as const;
/**
* Safely get an item from localStorage
* Returns null if localStorage is unavailable or item doesn't exist
*/
export function getStorageItem<T>(key: string): T | null {
try {
if (typeof window === "undefined") {
return null;
}
const item = window.localStorage.getItem(key);
return item ? JSON.parse(item) : null;
} catch {
// Silently fail if localStorage is not available
return null;
}
}
/**
* Safely set an item in localStorage
* Returns false if localStorage is unavailable
*/
export function setStorageItem<T>(key: string, value: T): boolean {
try {
if (typeof window === "undefined") {
return false;
}
window.localStorage.setItem(key, JSON.stringify(value));
return true;
} catch {
// Silently fail if localStorage is not available
return false;
}
}
/**
* Get the current selected mode
*/
export function getMode(): DocDoeMode | null {
return getStorageItem<DocDoeMode>(STORAGE_KEYS.MODE);
}
/**
* Set the current selected mode
*/
export function setMode(mode: DocDoeMode): boolean {
return setStorageItem(STORAGE_KEYS.MODE, mode);
}
/**
* Get the last query the user submitted
*/
export function getLastQuery(): string | null {
return getStorageItem<string>(STORAGE_KEYS.LAST_QUERY);
}
/**
* Set the last query the user submitted
*/
export function setLastQuery(query: string): boolean {
return setStorageItem(STORAGE_KEYS.LAST_QUERY, query);
}
/**
* Get the last exam date the user entered
*/
export function getLastExamDate(): string | null {
return getStorageItem<string>(STORAGE_KEYS.LAST_EXAM_DATE);
}
/**
* Set the last exam date the user entered
*/
export function setLastExamDate(date: string): boolean {
return setStorageItem(STORAGE_KEYS.LAST_EXAM_DATE, date);
}
/**
* Get the last duration the user selected
*/
export function getLastDuration(): number | null {
return getStorageItem<number>(STORAGE_KEYS.LAST_DURATION);
}
/**
* Set the last duration the user selected (in minutes)
*/
export function setLastDuration(duration: number): boolean {
return setStorageItem(STORAGE_KEYS.LAST_DURATION, duration);
}
/**
* Clear all mode-related storage
*/
export function clearModeStorage(): boolean {
try {
if (typeof window === "undefined") {
return false;
}
Object.values(STORAGE_KEYS).forEach((key) => {
window.localStorage.removeItem(key);
});
return true;
} catch {
return false;
}
}
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