utils.ts

export const getInitials = (name: string) => {
    const parts = name.trim().split(/\s+/);
    if (parts.length === 0) return '';
    if (parts.length === 1) return parts[0].substring(0, 2).toUpperCase();
    return (parts[0][0] + parts[parts.length - 1][0]).toUpperCase();
};

export const formatName = (name: string) => {
    const parts = name.trim().split(/\s+/);
    if (parts.length < 2) return name;
    // Return full First Name and Last Name (and middle names if present)
    // User request: "do not abbreviate first name"
    return parts.join(' ');
};

export const getFriendlyErrorMessage = (error: any): string => {
    // If it's not a string or object with message, return generic
    if (!error) return "An unexpected error occurred.";

    const message = typeof error === 'string' ? error : (error.message || '');
    const code = error.code || '';

    // Handle specific Firebase Auth codes
    switch (code) {
        case 'auth/user-not-found':
        case 'auth/invalid-credential':
        case 'auth/wrong-password':
            return "Incorrect email or password. Please try again.";
        case 'auth/email-already-in-use':
            return "This email address is already registered. Please sign in instead.";
        case 'auth/weak-password':
            return "Password should be at least 6 characters long.";
        case 'auth/invalid-email':
            return "Please enter a valid email address.";
        case 'auth/too-many-requests':
            return "Too many failed attempts. Please try again later.";
        case 'auth/network-request-failed':
            return "Network error. Please check your internet connection.";
        case 'permission-denied':
            return "You do not have permission to perform this action.";
        case 'unavailable':
            return "The service is temporarily unavailable.";
        default:
            // Fallback: Clean up "Firebase: Error (auth/foo)." -> "auth/foo" -> better text?
            // Or just return the cleaner message.
            if (message.includes('billing-not-enabled')) {
                return "Phone authentication is currently unavailable (Billing required).";
            }

            // Remove "Firebase: " prefix and "Error (code)." wrapper if present
            return message
                .replace(/^Firebase:\s*/, '')
                .replace(/^Error\s*\(([^)]+)\)\.?\s*$/, '$1')
                .replace(/\.$/, ''); // Remove trailing dot
    }
};