// Turn a raw record/detail-view field value into a display string. The Zino
// view APIs return heterogeneous shapes — scalars, phone objects, file blobs,
// {label,value} option objects, and arrays (grids) — so normalize them here.

interface PhoneLike {
  phone_with_dial_code?: string;
  phone?: string;
  dial_code?: string;
}

function isObject(v: unknown): v is Record<string, unknown> {
  return typeof v === 'object' && v !== null && !Array.isArray(v);
}

/** Best-effort single-line display string for a field value. */
export function formatValue(value: unknown): string {
  if (value == null || value === '') return '—';
  if (typeof value === 'boolean') return value ? 'Yes' : 'No';
  if (typeof value === 'number' || typeof value === 'string') return String(value);

  if (Array.isArray(value)) {
    if (value.length === 0) return '—';
    return `${value.length} item${value.length === 1 ? '' : 's'}`;
  }

  if (isObject(value)) {
    const o = value as PhoneLike & Record<string, unknown>;
    // Phone
    if (o.phone_with_dial_code) return String(o.phone_with_dial_code);
    if (o.phone) return `${o.dial_code ?? ''}${o.phone}`.trim();
    // Option / lookup {label,value}
    if ('label' in o && o.label != null) return String(o.label);
    // File / image blob
    if ('original_name' in o && o.original_name != null) return String(o.original_name);
    if ('url' in o && o.url != null) return String(o.url);
    if ('name' in o && o.name != null) return String(o.name);
    if ('value' in o && o.value != null) return String(o.value);
    // Custom workflow lookups
    if ('business_name_2' in o && o.business_name_2 != null) return String(o.business_name_2);
    if ('business_name_3' in o && o.business_name_3 != null) return String(o.business_name_3);
    if ('business_name' in o && o.business_name != null) return String(o.business_name);
  }

  try {
    return JSON.stringify(value);
  } catch {
    return String(value);
  }
}

/** Number with Indian-locale grouping; falls back to the raw string. */
export function formatNumber(value: unknown): string {
  const n = typeof value === 'number' ? value : Number(value);
  return Number.isFinite(n) ? n.toLocaleString('en-IN') : formatValue(value);
}