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import { logger } from "../utils/logger";
// Configuration constants
const SUPABASE_CONFIG = {
auth: {
persistSession: true,
autoRefreshToken: true,
detectSessionInUrl: true,
flowType: "pkce" as const,
},
global: {
headers: {
"X-Client-Info": "newsletter-hub-web",
},
},
db: {
schema: "public",
},
realtime: {
params: {
eventsPerSecond: 10,
},
},
} as const;
// Initialize logger
const log = logger;
// Environment variables validation
const supabaseUrl = (import.meta as any).env?.VITE_SUPABASE_URL || "";
const supabaseAnonKey = (import.meta as any).env?.VITE_SUPABASE_ANON_KEY || "";
if (!supabaseUrl || !supabaseAnonKey) {
const missingVars = [];
if (!supabaseUrl) missingVars.push("VITE_SUPABASE_URL");
if (!supabaseAnonKey) missingVars.push("VITE_SUPABASE_ANON_KEY");
log.error(
`Missing required Supabase environment variables: ${missingVars.join(", ")}`,
{
component: "SupabaseClient",
metadata: {
missingVars,
mode: "meta.env.MODE",
},
},
);
if (process.env.NODE_ENV === "development") {
log.warn(
"Running in development mode with missing Supabase configuration",
{ component: "SupabaseClient" },
);
}
}
// Create the Supabase client
export const supabase: SupabaseClient = createClient(
supabaseUrl,
supabaseAnonKey,
SUPABASE_CONFIG,
);
// Enhanced error handling utilities
export class SupabaseError extends Error {
constructor(
message: string,
public code?: string,
public details?: unknown,
public hint?: string,
) {
super(message);
this.name = "SupabaseError";
}
}
// Error handler utility
export const handleSupabaseError = (error: unknown): never => {
if (!error) {
throw new SupabaseError("Unknown error occurred");
}
// Type guard for error objects with code property
const hasCode = (
err: unknown,
): err is {
code: string;
message?: string;
details?: unknown;
hint?: string;
} => {
return typeof err === "object" && err !== null && "code" in err;
};
// Handle different types of errors
if (hasCode(error)) {
switch (error.code) {
case "PGRST116":
throw new SupabaseError(
"No data found",
error.code,
error.details,
"The requested resource does not exist or you do not have permission to access it",
);
case "23505":
throw new SupabaseError(
"Duplicate entry",
error.code,
error.details,
"A record with this information already exists",
);
case "23503":
throw new SupabaseError(
"Foreign key constraint violation",
error.code,
error.details,
"Referenced record does not exist",
);
case "42501":
throw new SupabaseError(
"Insufficient privileges",
error.code,
error.details,
"You do not have permission to perform this action",
);
default:
throw new SupabaseError(
error.message || "Database error occurred",
error.code,
error.details,
error.hint,
);
}
}
// Handle auth errors
if (error instanceof AuthError) {
throw new SupabaseError(
error.message,
"AUTH_ERROR",
error,
"Authentication required or invalid credentials",
);
}
// Type guard for error objects with name/message properties
const hasNameOrMessage = (
err: unknown,
): err is { name?: string; message?: string } => {
return (
typeof err === "object" &&
err !== null &&
("name" in err || "message" in err)
);
};
// Handle network errors
if (
hasNameOrMessage(error) &&
(error.name === "NetworkError" || error.message?.includes("fetch"))
) {
throw new SupabaseError(
"Network error occurred",
"NETWORK_ERROR",
error,
"Please check your internet connection and try again",
);
}
// Generic error handling
const errorMessage = hasNameOrMessage(error)
? error.message || "An unexpected error occurred"
: "An unexpected error occurred";
throw new SupabaseError(errorMessage, "UNKNOWN_ERROR", error);
};
// Auth state management utilities
export const getCurrentUser = async () => {
try {
const {
data: { user },
error,
} = await supabase.auth.getUser();
if (error) handleSupabaseError(error);
return user;
} catch (error) {
handleSupabaseError(error);
}
};
export const getCurrentSession = async () => {
try {
const {
data: { session },
error,
} = await supabase.auth.getSession();
if (error) handleSupabaseError(error);
return session;
} catch (error) {
handleSupabaseError(error);
}
};
// Utility to ensure user is authenticated
export const requireAuth = async () => {
const user = await getCurrentUser();
if (!user) {
throw new SupabaseError(
"User not authenticated",
"AUTH_REQUIRED",
null,
"Please sign in to continue",
);
}
return user;
};
// Connection health check
export const checkConnection = async (): Promise<boolean> => {
try {
const { error } = await supabase.from("users").select("id").limit(1);
return !error;
} catch {
return false;
}
};
// Performance monitoring
export const withPerformanceLogging = async <T>(
operation: string,
fn: () => Promise<T>,
): Promise<T> => {
const start = performance.now();
log.debug(`Starting operation: ${operation}`, {
component: "SupabaseClient",
action: "performance_start",
metadata: { operation },
});
try {
const result = await fn();
const duration = performance.now() - start;
log.info(`Operation completed: ${operation}`, {
component: "SupabaseClient",
action: "performance_success",
metadata: {
operation,
duration: `${duration.toFixed(2)}ms`,
durationMs: duration,
},
});
return result;
} catch (error) {
const duration = performance.now() - start;
log.error(
`Operation failed: ${operation}`,
{
component: "SupabaseClient",
action: "performance_error",
metadata: {
operation,
duration: `${duration.toFixed(2)}ms`,
durationMs: duration,
},
},
error instanceof Error ? error : new Error(String(error)),
);
throw error;
}
};
// Export the client as default for backward compatibility
export default supabase;
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