using System;

namespace PayRollBLL.SAP.Builders
{
    /// <summary>
    /// Shared amount-to-string formatting for all SAP infotype builders.
    /// SAP OData services require numeric amounts as JSON strings, not JSON numbers.
    /// </summary>
    internal static class SapFmt
    {
        /// <summary>
        /// Formats a whole-rupee amount (salary, tax, PF, PT).
        /// Always produces an integer string — e.g. 1022305.0 → "1022305".
        /// </summary>
        internal static string Integer(double value) =>
            ((long)Math.Round(value, MidpointRounding.AwayFromZero)).ToString();

        /// <summary>
        /// Formats an amount that may carry fractional rupees (rent, investments, deductions).
        /// Strips trailing zeros — e.g. 8300.0 → "8300", 8300.5 → "8300.5", 8300.55 → "8300.55".
        /// </summary>
        internal static string Amount(double value) =>
            value == Math.Floor(value)
                ? ((long)value).ToString()
                : value.ToString("0.##");
    }
}