using System.ComponentModel.DataAnnotations;
using System.Text.Json;

namespace WinLog.Models.Binder;

public class AppSettings
{

#nullable disable

    [Display(Name = "Date Format"), Required] public string DateFormat { get; set; }
    [Display(Name = "Directory"), Required] public string Directory { get; set; }
    [Display(Name = "Log Filter"), Required] public string LogFilter { get; set; }
    [Display(Name = "Message Filter"), Required] public string[] MessageFilters { get; set; }
    [Display(Name = "Monitor Application Resource"), Required] public string MonitorApplicationResource { get; set; }
    [Display(Name = "Monitor Application Site"), Required] public string MonitorApplicationSite { get; set; }
    [Display(Name = "Milliseconds Delay"), Required] public int? MillisecondsDelay { get; set; }
    [Display(Name = "Rolling Minutes"), Required] public int? RollingMinutes { get; set; }

#nullable restore

    public override string ToString()
    {
        string result = JsonSerializer.Serialize(this, new JsonSerializerOptions() { WriteIndented = true });
        return result;
    }

    private static Models.AppSettings Get(AppSettings appSettings)
    {
        Models.AppSettings result;
        if (appSettings.DateFormat is null)
            throw new NullReferenceException(nameof(DateFormat));
        if (appSettings.Directory is null)
            throw new NullReferenceException(nameof(Directory));
        if (appSettings.LogFilter is null)
            throw new NullReferenceException(nameof(LogFilter));
        if (appSettings.MessageFilters is null)
            throw new NullReferenceException(nameof(MessageFilters));
        if (appSettings.MillisecondsDelay is null)
            throw new NullReferenceException(nameof(MillisecondsDelay));
        if (appSettings.MonitorApplicationResource is null)
            throw new NullReferenceException(nameof(MonitorApplicationResource));
        if (appSettings.MonitorApplicationSite is null)
            throw new NullReferenceException(nameof(MonitorApplicationSite));
        if (appSettings.RollingMinutes is null)
            throw new NullReferenceException(nameof(RollingMinutes));
        result = new(appSettings.DateFormat, appSettings.Directory, appSettings.LogFilter, appSettings.MessageFilters, appSettings.MonitorApplicationResource, appSettings.MonitorApplicationSite, appSettings.MillisecondsDelay.Value, appSettings.RollingMinutes.Value);
        return result;
    }

    public static Models.AppSettings Get(IConfiguration configuration)
    {
        Models.AppSettings result;
        AppSettings appSettings = configuration.Get<AppSettings>();
        result = Get(appSettings);
        return result;
    }

}