// -----------------------------------------------------
// UTILITIES
// -----------------------------------------------------

export const extractOperator = (val?: string | null): string | null => {
  if (!val) return null;

  const match = val.match(/^(==|!=|>=|<=|LIKE|>|<)/);
  return match ? match[0] : null;
};

export const formatWithOperator = (operator: string, value: string) =>
  `${operator}/${value}`;

export const normalizeValue = (input: any): string => {
  if (input == null) return "";
  if (typeof input === "string" || typeof input === "number")
    return String(input);

  if (input?.value) return String(input.value);
  if (input?.id) return String(input.id);

  if (Array.isArray(input)) {
    return input.map(normalizeValue).join(",");
  }

  return "";
};

export const encodeFilter = (fullValue: string): string => {
  // Split ONLY on the first slash
  const index = fullValue.indexOf("/");
  if (index === -1) return fullValue;

  const operator = fullValue.slice(0, index);
  const rawValue = fullValue.slice(index + 1);

  return `${operator}/${encodeURIComponent(rawValue)}`;
};

export const decodeFilter = (encoded: string): string => {
  const [operator, encodedValue] = encoded.split("/");
  return `${operator}/${decodeURIComponent(encodedValue)}`;
};

// Default operator based on field and type
export const defaultOperatorForField = (
  field: string,
  type: string
): string => {
  if (field === "Amount") return ">="; // numeric field
  if (type === "text") return "LIKE"; // string/text search
  return "=="; // everything else (select, etc.)
};