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Radicade Public Code

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JogmansonReal
2026-10-16 23:33:13 -07:00
commit 55175acdf6
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Server/Discord/DiscordPayloadJson.cs
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using System.Globalization;
using System.Text.Json.Nodes;
namespace RadicadeServer.Radicade.Discord;
public static class DiscordPayloadJson
{
private const int MaxContentLength = 2000;
private const int MaxTitleLength = 256;
private const int MaxDescriptionLength = 4096;
private const int MaxFieldNameLength = 256;
private const int MaxFieldValueLength = 1024;
private const int MaxFieldCount = 25;
public static string Build(DiscordPayload payload, string? contentOverride = null, string? embedImageUrl = null)
{
var embed = new JsonObject();
if (!string.IsNullOrWhiteSpace(payload.Title))
embed["title"] = Truncate(payload.Title, MaxTitleLength);
if (!string.IsNullOrWhiteSpace(payload.Description))
embed["description"] = Truncate(payload.Description, MaxDescriptionLength);
embed["color"] = payload.Color;
var imageUrl = string.IsNullOrWhiteSpace(embedImageUrl) ? payload.ImageUrl : embedImageUrl;
if (!string.IsNullOrWhiteSpace(imageUrl))
embed["image"] = new JsonObject { ["url"] = Truncate(imageUrl, MaxTitleLength) };
if (!string.IsNullOrWhiteSpace(payload.ThumbnailUrl))
embed["thumbnail"] = new JsonObject { ["url"] = Truncate(payload.ThumbnailUrl, MaxTitleLength) };
if (!string.IsNullOrWhiteSpace(payload.TimestampUtc)
&& DateTime.TryParse(payload.TimestampUtc, CultureInfo.InvariantCulture, DateTimeStyles.RoundtripKind, out var parsed))
{
embed["timestamp"] = parsed.ToString("O");
}
var fields = new JsonArray();
foreach (var field in (payload.Fields ?? new List<DiscordField>()).Take(MaxFieldCount))
{
if (field == null) continue;
fields.Add(new JsonObject
{
["name"] = Truncate(field.Name ?? "", MaxFieldNameLength),
["value"] = Truncate(field.Value ?? "", MaxFieldValueLength),
["inline"] = field.Inline
});
}
if (fields.Count > 0)
embed["fields"] = fields;
var message = new JsonObject
{
["content"] = Truncate(contentOverride ?? payload.Title ?? "", MaxContentLength)
};
message["embeds"] = new JsonArray { embed };
return message.ToJsonString();
}
private static string Truncate(string value, int max)
{
if (string.IsNullOrEmpty(value)) return "";
if (value.Length <= max) return value;
var cut = max;
if (char.IsHighSurrogate(value[cut - 1]) && cut < value.Length && char.IsLowSurrogate(value[cut]))
cut--;
return value[..cut];
}
}