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import type { PublicClientConfig } from "@/shared/types";
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declare global {
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  interface Window {
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    __BLAND_PUBLIC_CONFIG__?: unknown;
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    __BLAND_CSP_NONCE__?: unknown;
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  }
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}
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type ClientConfigState = {
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  config: PublicClientConfig | null;
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  error: Error | null;
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};
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let clientConfigState: ClientConfigState | null = null;
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function isPublicClientConfig(rawConfig: unknown): rawConfig is PublicClientConfig {
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  if (!rawConfig || typeof rawConfig !== "object") {
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    return false;
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  }
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  const value = rawConfig as Record<string, unknown>;
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  const sentryDsn = value.sentry_dsn;
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  return sentryDsn === null || (typeof sentryDsn === "string" && sentryDsn.length > 0);
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}
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function resolveClientConfigState(): ClientConfigState {
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  if (clientConfigState) {
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    return clientConfigState;
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  }
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  const rawConfig = typeof window === "undefined" ? undefined : window.__BLAND_PUBLIC_CONFIG__;
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  if (rawConfig === undefined) {
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    clientConfigState = {
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      config: null,
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      error: new Error("Missing Worker bootstrap config"),
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    };
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    return clientConfigState;
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  }
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  if (!isPublicClientConfig(rawConfig)) {
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    clientConfigState = {
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      config: null,
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      error: new Error("Invalid Worker bootstrap config"),
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    };
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    return clientConfigState;
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  }
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  clientConfigState = {
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    config: rawConfig,
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    error: null,
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  };
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  return clientConfigState;
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}
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export function getClientConfigSnapshot(): PublicClientConfig | null {
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  return resolveClientConfigState().config;
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}
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export function getClientConfigErrorSnapshot(): Error | null {
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  return resolveClientConfigState().error;
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}
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export function getBootstrapCspNonceSnapshot(): string | null {
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  if (typeof window === "undefined") return null;
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  return typeof window.__BLAND_CSP_NONCE__ === "string" && window.__BLAND_CSP_NONCE__.length > 0
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    ? window.__BLAND_CSP_NONCE__
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    : null;
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}