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import { fetchServicesAndProviders } from "@/api/ZMSAppointmentAPI";
export type ApiStatusType = "normal" | "maintenance" | "systemFailure";
export interface ApiStatusState {
status: Ref<ApiStatusType>;
lastCheckTime: Ref<number | null>;
checkInterval: Ref<number | null>;
baseUrl: Ref<string | undefined>;
}
const apiStatusState: ApiStatusState = {
status: ref<ApiStatusType>("normal"),
lastCheckTime: ref(null),
checkInterval: ref(null),
baseUrl: ref(undefined),
};
const CHECK_INTERVAL_MS = 30000;
/**
* Determines the API status based on error information
* @param firstError - The first error from the response
* @returns ApiStatusType - The determined status
*/
function determineStatusFromError(firstError: any): ApiStatusType {
if (firstError?.errorCode === "rateLimitExceeded") {
return "normal";
}
if (firstError?.statusCode === 503) {
return "maintenance";
}
if (firstError?.errorCode === "serviceUnavailable") {
return "maintenance";
}
if (firstError?.statusCode >= 500 || firstError?.statusCode === 0) {
return "systemFailure";
}
if (firstError?.statusCode >= 400 && firstError?.statusCode < 500) {
return "maintenance";
}
return "normal";
}
/**
* Checks if the offices-and-services API is available and determines the appropriate status
* @param baseUrl - Optional base URL for the API
* @returns Promise<ApiStatusType> - The current API status
*/
export async function checkApiStatus(baseUrl?: string): Promise<ApiStatusType> {
try {
const response = await fetchServicesAndProviders(
undefined,
undefined,
baseUrl
);
if (response && !(response as any).errors) {
return "normal";
}
const firstError = (response as any)?.errors?.[0];
return determineStatusFromError(firstError);
} catch (error) {
return "systemFailure";
}
}
/**
* Sets the API status and starts automatic recovery checking if needed
* @param status - The new API status
* @param baseUrl - Optional base URL for the API
*/
export function setApiStatus(status: ApiStatusType, baseUrl?: string): void {
apiStatusState.status.value = status;
apiStatusState.lastCheckTime.value = Date.now();
apiStatusState.baseUrl.value = baseUrl;
if (apiStatusState.checkInterval.value) {
clearInterval(apiStatusState.checkInterval.value);
apiStatusState.checkInterval.value = null;
}
if (status !== "normal") {
apiStatusState.checkInterval.value = setInterval(async () => {
const currentStatus = await checkApiStatus(baseUrl);
if (currentStatus === "normal") {
setApiStatus("normal", baseUrl);
} else if (currentStatus !== status) {
setApiStatus(currentStatus, baseUrl);
}
}, CHECK_INTERVAL_MS) as any;
}
}
/**
* Gets the current API status state
* @returns ApiStatusState - The current API status state
*/
export function getApiStatusState(): ApiStatusState {
return apiStatusState;
}
/**
* Checks if the application is currently in maintenance mode
* @returns boolean - true if in maintenance mode
*/
export function isInMaintenanceMode(): boolean {
return apiStatusState.status.value === "maintenance";
}
/**
* Checks if the application is currently in system failure mode
* @returns boolean - true if in system failure mode
*/
export function isInSystemFailureMode(): boolean {
return apiStatusState.status.value === "systemFailure";
}
/**
* Handles API response and determines the appropriate status
* @param response - The API response
* @param baseUrl - Optional base URL for the API
* @returns boolean - true if status was changed from normal
*/
export function handleApiResponseForDownTime(
response: any,
baseUrl?: string
): boolean {
if (!response || typeof response !== "object" || Array.isArray(response)) {
const prev = apiStatusState.status.value;
if (prev !== "systemFailure") {
setApiStatus("systemFailure", baseUrl);
return true;
}
return false;
}
if (
response.errors &&
Array.isArray(response.errors) &&
response.errors.length > 0
) {
const firstError = response.errors[0];
const status = determineStatusFromError(firstError);
if (status === "normal") {
return false;
}
const prev = apiStatusState.status.value;
if (prev !== status) {
setApiStatus(status, baseUrl);
return true;
}
return false;
}
return false;
}
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