import { router } from "expo-router";
import { Alert } from "react-native";

import type { RemoveAccountResult } from "@/contexts/AccountsContext";

type FinishAccountRemovalInput = {
  result: RemoveAccountResult;
  clearActiveAccount: () => Promise<void>;
  signOut: () => Promise<unknown>;
};

/** Navigate to sign-in when the last saved account was removed. */
export async function finishAccountRemoval({
  result,
  clearActiveAccount,
  signOut,
}: FinishAccountRemovalInput): Promise<void> {
  if (result.remainingCount > 0) return;

  await signOut();
  await clearActiveAccount();
  router.replace("/(auth)/sign-in");
}

export function confirmRemoveAccount(
  label: string,
  onRemove: () => Promise<RemoveAccountResult>,
  onFinished: (result: RemoveAccountResult) => Promise<void>,
) {
  Alert.alert("Remove account", `Remove ${label} from this device?`, [
    { text: "Cancel", style: "cancel" },
    {
      text: "Remove",
      style: "destructive",
      onPress: () => {
        void (async () => {
          const result = await onRemove();
          await onFinished(result);
        })();
      },
    },
  ]);
}