namespace PagerParser.Sites;

// Interface class for fetching pager messages from PagerMon
// sites such as Jobyyy over HTTP.
public class PagerMon {
    public record PagerMonMessage {
        public long   Timestamp { get; set; }
        public string Message   { get; set; }
    }

    public record PagerMonQueryResponse {
        public PagerMonMessage[] Messages { get; set; }
    }

    private const string QueryUrl =
        "https://jobyyy.net/api/messageSearch?alias=6&limit=100";

    private HttpClient httpClient = new();

    public PagerMessage[] Fetch() {
        List<PagerMessage> messages = new();

        var result = httpClient
            .GetFromJsonAsync<PagerMonQueryResponse>(QueryUrl)
            .GetAwaiter()
            .GetResult();

        if(result is null)
            return Array.Empty<PagerMessage>();

        return result.Messages.Select(m => new PagerMessage() {
            Timestamp = DateTimeOffset.FromUnixTimeSeconds(m.Timestamp).DateTime.ToUniversalTime(),
            Message   = m.Message
        }).ToArray();
    }
}