public async Task <bool?> Handle(InlineQuery data, object context = default, CancellationToken cancellationToken = default)
{
var results = new List <InlineQueryResult>();
var query = data.Query;
string encodedId = null;
if (Regex.Match(query, PATTERN) is { Success : true } match)
{
encodedId = match.Groups["Id"].Value;
query = query.Remove(match.Index, match.Length);
}
query = query.Trim();
var matchedZones = myDateTimeZoneProvider.Ids.Where(id =>
{
// check tz id
if (id.Contains(query, StringComparison.OrdinalIgnoreCase))
{
return(true);
}
// check Region name
return(myTimeZoneService.TryGetRegion(id, out var region) && (
region.EnglishName.Contains(query, StringComparison.OrdinalIgnoreCase) ||
region.NativeName.Contains(query, StringComparison.OrdinalIgnoreCase)));
}).ToList();
InlineKeyboardMarkup replyMarkup = null;
if (myTimeZoneNotifyService.DecodeId(encodedId, out var chatId, out var messageId))
{
(_, replyMarkup) = await myTimeZoneNotifyService.GetSettingsMessage(new Chat { Id = chatId, Type = ChatType.Sender }, messageId, cancellationToken);
}
var instant = myClock.GetCurrentInstant();
int.TryParse(data.Offset, out var offset);
for (var index = offset; index < matchedZones.Count && index < offset + PAGE_SIZE; index++)
{
var id = matchedZones[index];
if (myDateTimeZoneProvider.GetZoneOrNull(id) is { } timeZone)
{
var title = $"{timeZone.Id} ({timeZone.GetUtcOffset(instant)})";
var builder = new TextBuilder()
.Append($"{title}\x00A0") // trailing space is necessary to allow edit it further to the same message
.NewLine();
string countryString = null;
if (myTimeZoneService.TryGetRegion(timeZone.Id, out var country))
{
countryString = $"{country.EnglishName} {country.NativeName}";
builder.Sanitize(countryString).NewLine();
}
results.Add(new InlineQueryResultArticle($"{PREFIX}:{encodedId}:{timeZone.Id}", title, builder.ToTextMessageContent())
{
Description = countryString,
ReplyMarkup = replyMarkup
});
}
}
string nextOffset = default;
if (results.Count == 0 && offset == 0)
{
results.Add(new InlineQueryResultArticle("NothingFound", "Nothing found",
new TextBuilder($"Nothing found by request ").Code(builder => builder.Sanitize(query)).ToTextMessageContent())
{
Description = $"Request {query}",
ThumbUrl = myUrlHelper.AssetsContent(@"static_assets/png/btn_close_normal.png").AbsoluteUri
});
}
else
{
nextOffset = (offset + PAGE_SIZE).ToString();
}
await myBot.AnswerInlineQueryWithValidationAsync(data.Id, results, nextOffset : nextOffset, cacheTime : 0, isPersonal : true, cancellationToken : cancellationToken);
return(true);
}
