/// <summary>
/// Writes a integral property to the specified writer if the value is not null.
/// </summary>
/// <param name="writer">The writer to write.</param>
/// <param name="name">The name of the property.</param>
/// <param name="value">The value of the property.</param>
public static void WritePropertyIfNeeded(this IResponseWriter writer, string name, int?value)
{
if (value != null)
{
writer.WriteProperty(name, value.Value);
}
}
/// <summary>
/// Writes a property to the specified writer if the value is not null.
/// </summary>
/// <param name="writer">The writer to write.</param>
/// <param name="name">The name of the property.</param>
/// <param name="value">The value of the property.</param>
public static void WritePropertyIfNeeded(this IResponseWriter writer, string name, object value)
{
if (value != null)
{
var t = value.GetType();
if (t == typeof(bool))
{
writer.WriteProperty(name, (bool)value);
}
else if (Regex.IsMatch(t.FullName, "^System.(U?Int(16|32|64)|S?Byte|Single|Double|Decimal)$"))
{
writer.WriteProperty(name, ((IConvertible)value).ToDouble(null));
}
else
{
writer.WriteProperty(name, value.ToString());
}
}
}
/// <summary>
/// Writes a EmbedData to the specified writer.
/// </summary>
/// <param name="writer">The writer to write.</param>
/// <param name="obj">The <see cref="EmbedData" />.</param>
/// <param name="hash">The URL hash to append.</param>
public static async Task WriteEmbedDataAsync(this IResponseWriter writer, EmbedData obj, string hash = null)
{
writer.WriteStartResponse();
writer.WritePropertyIfNeeded("type", obj.Type);
writer.WritePropertyIfNeeded("url", obj.Url + hash);
writer.WritePropertyIfNeeded("title", obj.Title);
writer.WritePropertyIfNeeded("description", obj.Description);
writer.WritePropertyIfNeeded("author_name", obj.AuthorName);
writer.WritePropertyIfNeeded("author_url", obj.AuthorUrl);
writer.WritePropertyIfNeeded("provider_name", obj.ProviderName);
writer.WritePropertyIfNeeded("provider_url", obj.ProviderUrl);
writer.WritePropertyIfNeeded("cache_age", obj.CacheAge);
writer.WriteStartObjectProperty("metadata_image");
writer.WritePropertyIfNeeded("type", obj.MetadataImage?.Type);
writer.WritePropertyIfNeeded("restriction_policy", obj.MetadataImage?.RestrictionPolicy);
writer.WritePropertyIfNeeded("raw_url", obj.MetadataImage?.RawUrl);
writer.WritePropertyIfNeeded("location", obj.MetadataImage?.Location);
writer.WriteStartObjectProperty("thumbnail");
writer.WritePropertyIfNeeded("url", obj.MetadataImage?.Thumbnail?.Url);
writer.WritePropertyIfNeeded("width", obj.MetadataImage?.Thumbnail?.Width);
writer.WritePropertyIfNeeded("height", obj.MetadataImage?.Thumbnail?.Height);
writer.WriteEndObjectProperty();
writer.WriteEndObjectProperty();
writer.WritePropertyIfNeeded("restriction_policy", obj.RestrictionPolicy);
if (obj.Medias.Count > 0)
{
writer.WriteStartArrayProperty("medias");
foreach (var media in obj.Medias)
{
writer.WriteStartObject("media");
writer.WriteProperty("type", media.Type.ToString());
if (media.Thumbnail != null)
{
writer.WriteStartObjectProperty("thumbnail");
writer.WritePropertyIfNeeded("url", media.Thumbnail.Url);
writer.WritePropertyIfNeeded("width", media.Thumbnail.Width);
writer.WritePropertyIfNeeded("height", media.Thumbnail.Height);
writer.WriteEndObjectProperty();
}
writer.WritePropertyIfNeeded("raw_url", media.RawUrl);
writer.WritePropertyIfNeeded("location", media.Location);
writer.WritePropertyIfNeeded("restriction_policy", media.RestrictionPolicy);
writer.WriteEndObject();
}
writer.WriteEndArrayProperty();
}
await writer.WriteEndResponseAsync();
}