using System.IO;

namespace Housing.Services;

public sealed class BarcodeScannerSettings
{
    public bool Enabled { get; set; }
    public string PortName { get; set; } = "Auto";
    public int BaudRate { get; set; } = 9600;
    public int ReadTimeout { get; set; } = 500;
    public int IdleCommitMilliseconds { get; set; } = 250;
    public bool DtrEnable { get; set; } = true;
    public bool RtsEnable { get; set; } = true;

    public static BarcodeScannerSettings Load(string filePath)
    {
        if (!File.Exists(filePath))
        {
            throw new FileNotFoundException("Hardware.ini file was not found.", filePath);
        }

        var values = IniFile.LoadSection(filePath, "BarcodeScanner");
        return new BarcodeScannerSettings
        {
            Enabled = GetBool(values, "Enabled", false),
            PortName = GetString(values, "PortName", "Auto"),
            BaudRate = GetInt(values, "BaudRate", 9600),
            ReadTimeout = GetInt(values, "ReadTimeout", 500),
            IdleCommitMilliseconds = GetInt(values, "IdleCommitMilliseconds", 250),
            DtrEnable = GetBool(values, "DtrEnable", true),
            RtsEnable = GetBool(values, "RtsEnable", true)
        };
    }

    public static bool IsAutoPort(string portName)
    {
        return string.IsNullOrWhiteSpace(portName) ||
               string.Equals(portName.Trim(), "Auto", StringComparison.OrdinalIgnoreCase);
    }

    private static string GetString(Dictionary<string, string> values, string key, string defaultValue)
    {
        return values.TryGetValue(key, out var value) && !string.IsNullOrWhiteSpace(value)
            ? value.Trim()
            : defaultValue;
    }

    private static int GetInt(Dictionary<string, string> values, string key, int defaultValue)
    {
        return values.TryGetValue(key, out var value) && int.TryParse(value, out var result)
            ? result
            : defaultValue;
    }

    private static bool GetBool(Dictionary<string, string> values, string key, bool defaultValue)
    {
        if (!values.TryGetValue(key, out var value) || string.IsNullOrWhiteSpace(value))
        {
            return defaultValue;
        }

        return value.Trim().ToUpperInvariant() switch
        {
            "1" or "TRUE" or "YES" or "ON" => true,
            "0" or "FALSE" or "NO" or "OFF" => false,
            _ => defaultValue
        };
    }
}