export const generateSQLAttribute = (type: string, length: number, scale: number): string => {
  switch (type) {
    case 'Number':
      return `Num(${length}, ${scale})`;
    case 'Date':
      return 'Date';
    default:
      // For string type, if converting from number, account for decimal point and scale
      const adjustedLength = scale > 0 ? length + scale + 1 : length;
      return `Varchar(${adjustedLength})`;
  }
};

export const generateSQLDefault = (type: string): string => {
  switch (type) {
    case 'Number':
      return 'Not Null Default 0';
    case 'Date':
      return `Not Null Default '1980-01-01'`;
    default:
      return `CCSID 37 Not Null Default ' '`;
  }
};

export const sanitizeColumnName = (name: string): string => {
  return name.replace(/[^a-zA-Z0-9_]/g, '_').toUpperCase();
};

export const getExcelColumn = (index: number): string => {
  let column = '';
  let num = index;
  while (num >= 0) {
    column = String.fromCharCode(65 + (num % 26)) + column;
    num = Math.floor(num / 26) - 1;
  }
  return column;
};