buypeeb-cs/YahooAuctionsItem.cs

132 lines
4.9 KiB
C#

using System;
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 {
[JsonIgnore]
public string url {
get {
return $"https://page.auctions.yahoo.co.jp/jp/auction/{this.id}";
}
}
[JsonIgnore]
public string buyeeUrl {
get {
return $"https://buyee.jp/item/yahoo/auction/{this.id}";
}
}
// any items with a getter will be saved to userdata.json
// anything that's configurable by the user, such as the custom name, should be saved
// 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
// anything with the attribute [Ignore] won't be put in the CSV, and things with [JsonIgnore] won't be put in userdata.json
[Ignore]
public string id { get; set; }
public string name { get; set; }
public int price = 0;
public int winPrice;
public string originalName { get; set; }
public string notes { get; set; }
public bool favourite { get; set; } = false;
public DateTime startDate;
public DateTime endDate { get; set; }
public DateTime lastUpdated;
public int bids;
public bool autoExtension;
public bool ready;
public bool available;
[Ignore, JsonIgnore]
public bool updatedRecently {
get {
var later = this.lastUpdated.AddSeconds(15);
return DateTime.Compare(later, this.lastUpdated) < 0;
}
}
[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; } }
[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;
this.name = name;
}
public YahooAuctionsItem() {
// parameterless constructor for deserialisation
}
public void Update(string html) {
// TODO: handle all the parsing errors and weird interpretation that could possibly happen here
var rx = new Regex(@"var pageData ?= ?(\{.+?\});", RegexOptions.Singleline); // TODO: maybe compile and match the regex in another thread
var m = rx.Match(html);
if (m == null) {
Console.WriteLine("no sir i don't like it");
return;
}
Dictionary<string, Dictionary<string, string>> j_full;
try {
// master forgive me, but i must go all out, just this once...
j_full = JsonSerializer.Deserialize<Dictionary<string, Dictionary<string, string>>>(m.Groups[1].Value);
}
catch (Exception e) {
Console.WriteLine("oh jeez oh man oh jeez oh man oh jeez oh man");
Console.WriteLine(m.Groups[1].Value);
throw e;
}
var jst = TimeZoneInfo.CreateCustomTimeZone("JST", new TimeSpan(9, 0, 0), "Japan Standard Time", "Japen Standard Time");
var j = j_full["items"];
this.originalName = j["productName"];
this.startDate = TimeZoneInfo.ConvertTimeToUtc(DateTime.ParseExact(j["starttime"], "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture), jst);
this.endDate = TimeZoneInfo.ConvertTimeToUtc(DateTime.ParseExact(j["endtime"], "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture), jst);
this.lastUpdated = DateTime.UtcNow;
this.available = j["isClosed"] == "0";
this.success = int.TryParse(j["price"], out this.price);
this.success = int.TryParse(j["winPrice"], out this.winPrice);
this.success = int.TryParse(j["bids"], out this.bids);
if (String.IsNullOrWhiteSpace(this.name)) {
this.name = this.originalName;
}
// as far as i can tell, neither the `pageData` nor the `conf` variables in the html seem to store whether or not the auction uses automatic extension
// the `conf` variable *does* store whether or not the auction has the "early end" feature enabled, in the key `earlyed`.
// unfortunately, it seems like the only way to get the auto extension info is to scrape the page for the info column that displays the auto ext status
// and check whether or not it's equal to "ari" (japanese for "yes").
var autoExtensionCheck = new Regex(@"自動延長.+\n.+>(.+)<");
m = rx.Match(html);
if (m.Groups[1].Value != null) {
this.autoExtension = (m.Groups[1].Value == "あり");
}
}
public override string ToString() {
return $"{this.id}: {this.name}";
}
}
}