Disforget/Search.cs

using System.Net;
using System.Net.Http.Json;

namespace Disforget;

public class Search
{
    public Search(ulong channel)
    {
        _channel = channel;
        _cli = Utils.CreateClient();
    }

    private readonly HttpClient _cli;
    private readonly List<Message> _messages = new();
    private readonly ulong _channel;
    private int _pages = -1, _total;

    public async Task<List<Message>> Perform()
    {
        int page = 0;

        do
        {
            await DoSearch(page);
            await Task.Delay(1500);
            page++;
        } while (page < _pages);

        Console.WriteLine($"\nFound and processed {_messages.Count} messages.");

        return _messages;
    }

    private async Task DoSearch(int page)
    {
        var reqstr = $"https://discord.com/api/v9/{(Utils.Data.Type.ToLower() == "dm" ? "channels" : "guilds")}/{_channel}/messages/search?author_id={Utils.Data.UserId}&include_nsfw=true{(page > 0 ? $"&offset={page * 25}" : "")}";

    REQ:
        var resp = await _cli.GetAsync(reqstr);

        if (resp.StatusCode == HttpStatusCode.TooManyRequests)
        {
            await Task.Delay(30000);
            Console.Write($"\x1b[2K\rRequest {++page}/{_pages} FAILED [REPEATING] ({_messages.Count}/{_total})");
            goto REQ;
        }

        Response? result = await resp.Content.ReadFromJsonAsync<Response>();

        if (result == null)
        {
            Console.WriteLine("Failed (null)...");
            Environment.Exit(3);
        }

        _total = result.TotalResults;
        _pages = (int)Math.Ceiling(_total / 25.0);

        _messages.AddRange(result.Messages);

        Console.Write($"\x1b[2K\rRequest {++page}/{_pages} Status: {resp.StatusCode} ({_messages.Count}/{_total})");
    }

    public override bool Equals(object? obj)
    {
        return obj is Search search &&
               _channel == search._channel;
    }

    public override int GetHashCode()
    {
        return HashCode.Combine(_cli, _messages, _channel, _pages, _total);
    }
}