don't serialise some unecessary stuff

MainWindow.cs

@@ -573,6 +573,7 @@ namespace Buypeeb {
 				try {
 					using (var writer = new StreamWriter(sd.Filename))
 					using (var csv = new CsvWriter(writer, System.Globalization.CultureInfo.InvariantCulture)) {
+
 						csv.WriteRecords(this.settings.watchlist);
 					}
 				}

YahooAuctionsItem.cs

@@ -3,6 +3,8 @@ using System.Globalization;
 using System.Text.RegularExpressions;
 using System.Collections.Generic;
 using System.Text.Json;
+using System.Text.Json.Serialization;
+using CsvHelper.Configuration.Attributes;
 
 namespace Buypeeb {
 	class YahooAuctionsItem {
@@ -23,6 +25,7 @@ namespace Buypeeb {
 		// the id *must* be saved!
 		// i'm also saving the original name to make it easier to tell what the items are in the userdata.json
 		// there's not really a need for it i guess but it's my program and i can do what i want
+		[Ignore]
 		public string id { get; set; }
 		public string name { get; set; }
 		private int price = 0;
@@ -38,6 +41,7 @@ namespace Buypeeb {
 		public bool ready;
 		public bool available;
 
+		[Ignore, JsonIgnore]
 		public bool updatedRecently {
 			get {
 				var later = this.lastUpdated.AddSeconds(15);
@@ -45,15 +49,21 @@ namespace Buypeeb {
 			}
 		}
 
-		// TODO: don't serialise this stuff
+		[JsonIgnore]
 		public string priceJPY { get { return $"¥{this.price}"; } }
+		[JsonIgnore]
 		public string winPriceJPY { get { return $"¥{this.winPrice}"; } }
+		[Ignore, JsonIgnore]
 		public string priceAUD { get { return $"${(this.price / 75.0):f2}"; } }
+		[Ignore, JsonIgnore]
 		public string winPriceAUD { get { return $"${(this.winPrice / 75.0):f2}"; } }
+		[Ignore, JsonIgnore]
 		public bool endingToday { get { return this.endDate.DayOfYear == DateTime.UtcNow.DayOfYear; } }
+		[Ignore, JsonIgnore]
 		public bool hasWinPrice { get { return this.winPrice != 0; } }
-		private bool success { get; set; } // TODO: custom setter that throws an exception if set to false or something idk
+		[Ignore, JsonIgnore]
 		public bool endingSoon { get { return DateTime.Compare(DateTime.UtcNow.AddMinutes(10), this.endDate) > 0; } }
+		private bool success { get; set; } // TODO: custom setter that throws an exception if set to false or something idk
 
 		public YahooAuctionsItem(string id, string name) {
 			this.id = id;