chore(mobx): add legacy redux migations

src/mobx/legacy/redux.ts

@@ -0,0 +1,84 @@
+import { AuthState } from "../../redux/reducers/auth";
+
+import { Language } from "../../context/Locale";
+import { Fonts, MonospaceFonts, Overrides } from "../../context/Theme";
+
+import { Data as DataAuth } from "../stores/Auth";
+import { Data as DataLocaleOptions } from "../stores/LocaleOptions";
+import { Data as DataNotificationOptions } from "../stores/NotificationOptions";
+import { ISettings } from "../stores/Settings";
+
+export type LegacyTheme = Overrides & {
+    light?: boolean;
+    font?: Fonts;
+    css?: string;
+    monospaceFont?: MonospaceFonts;
+};
+
+export interface LegacyThemeOptions {
+    base?: string;
+    ligatures?: boolean;
+    custom?: Partial<LegacyTheme>;
+}
+
+export type LegacyEmojiPacks = "mutant" | "twemoji" | "noto" | "openmoji";
+export interface LegacyAppearanceOptions {
+    emojiPack?: LegacyEmojiPacks;
+}
+
+export type LegacyNotificationState = "all" | "mention" | "none" | "muted";
+
+export type LegacyNotifications = {
+    [key: string]: LegacyNotificationState;
+};
+
+export interface LegacySyncData {
+    locale?: Language;
+    theme?: LegacyThemeOptions;
+    appearance?: LegacyAppearanceOptions;
+    notifications?: LegacyNotifications;
+}
+
+function legacyMigrateAuth(auth: AuthState): DataAuth {
+    return {
+        current: auth.active,
+        sessions: auth.accounts,
+    };
+}
+
+function legacyMigrateLocale(lang: Language): DataLocaleOptions {
+    return {
+        lang,
+    };
+}
+
+function legacyMigrateTheme(theme: LegacyThemeOptions): Partial<ISettings> {
+    const { light, font, css, monospaceFont, ...variables } =
+        theme.custom ?? {};
+
+    return {
+        "appearance:ligatures": theme.ligatures,
+        "appearance:theme:base": theme.base === "light" ? "light" : "dark",
+        "appearance:theme:light": light,
+        "appearance:theme:font": font,
+        "appearance:theme:monoFont": monospaceFont,
+        "appearance:theme:css": css,
+        "appearance:theme:overrides": variables,
+    };
+}
+
+function legacyMigrateAppearance(
+    appearance: LegacyAppearanceOptions,
+): Partial<ISettings> {
+    return {
+        "appearance:emoji": appearance.emojiPack,
+    };
+}
+
+function legacyMigrateNotification(
+    channel: LegacyNotifications,
+): DataNotificationOptions {
+    return {
+        channel,
+    };
+}