/**
 * Client-only settings - persisted in localStorage.
 *
 * These settings affect only the frontend UX and never need to be read by
 * the server. Server-authoritative settings live in `ServerSettings`
 * (defined in `@t3tools/contracts/server`).
 */
import { Option, Schema } from "effect";

export const CLIENT_SETTINGS_STORAGE_KEY = "t3code:client-settings:v1";

export const TimestampFormat = Schema.Literals(["locale", "12-hour", "24-hour"]);
export type TimestampFormat = typeof TimestampFormat.Type;
export const DEFAULT_TIMESTAMP_FORMAT: TimestampFormat = "locale";

export const SidebarProjectSortOrder = Schema.Literals(["updated_at", "created_at", "manual"]);
export type SidebarProjectSortOrder = typeof SidebarProjectSortOrder.Type;
export const DEFAULT_SIDEBAR_PROJECT_SORT_ORDER: SidebarProjectSortOrder = "updated_at";

export const SidebarThreadSortOrder = Schema.Literals(["updated_at", "created_at"]);
export type SidebarThreadSortOrder = typeof SidebarThreadSortOrder.Type;
export const DEFAULT_SIDEBAR_THREAD_SORT_ORDER: SidebarThreadSortOrder = "updated_at";

const withDefaults =
  <
    S extends Schema.Top & Schema.WithoutConstructorDefault,
    D extends S["~type.make.in"] & S["Encoded"],
  >(
    fallback: () => D,
  ) =>
  (schema: S) =>
    schema.pipe(
      Schema.withConstructorDefault(() => Option.some(fallback())),
      Schema.withDecodingDefault(() => fallback()),
    );

export const ClientSettingsSchema = Schema.Struct({
  confirmThreadDelete: Schema.Boolean.pipe(withDefaults(() => true)),
  diffWordWrap: Schema.Boolean.pipe(withDefaults(() => false)),
  sidebarProjectSortOrder: SidebarProjectSortOrder.pipe(
    withDefaults(() => DEFAULT_SIDEBAR_PROJECT_SORT_ORDER),
  ),
  sidebarThreadSortOrder: SidebarThreadSortOrder.pipe(
    withDefaults(() => DEFAULT_SIDEBAR_THREAD_SORT_ORDER),
  ),
  timestampFormat: TimestampFormat.pipe(withDefaults(() => DEFAULT_TIMESTAMP_FORMAT)),
});
export type ClientSettings = typeof ClientSettingsSchema.Type;

export const DEFAULT_CLIENT_SETTINGS: ClientSettings = ClientSettingsSchema.makeUnsafe({});