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Diffstat (limited to 'code/api/src/Endpoints/EndpointBase.cs')
| -rw-r--r-- | code/api/src/Endpoints/EndpointBase.cs | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/code/api/src/Endpoints/EndpointBase.cs b/code/api/src/Endpoints/EndpointBase.cs index de5d967..a5b0931 100644 --- a/code/api/src/Endpoints/EndpointBase.cs +++ b/code/api/src/Endpoints/EndpointBase.cs @@ -1,3 +1,5 @@ +using ILogger = Microsoft.Extensions.Logging.ILogger; + namespace IOL.GreatOffice.Api.Endpoints; [ApiController] @@ -20,4 +22,32 @@ public class EndpointBase : ControllerBase TraceId = HttpContext.TraceIdentifier }); } + + [NonAction] + protected RequestTimeZoneInfo GetRequestTimeZone(ILogger logger = default) { + Request.Headers.TryGetValue(AppHeaders.BROWSER_TIME_ZONE, out var timeZoneHeader); + var tz = TimeZoneInfo.FindSystemTimeZoneById(timeZoneHeader.ToString().HasValue() ? timeZoneHeader.ToString() : "UTC"); + var offset = tz.BaseUtcOffset.Hours; + + // This is fine as long as the client is not connecting from Australia: Lord Howe Island, + // according to https://en.wikipedia.org/wiki/Daylight_saving_time_by_country + if (tz.IsDaylightSavingTime(AppDateTime.UtcNow)) { + offset++; + } + + logger?.LogInformation("Request time zone (" + tz.Id + ") offset is: " + offset + " hours"); + + return new RequestTimeZoneInfo() { + TimeZoneInfo = tz, + Offset = offset, + LocalDateTime = TimeZoneInfo.ConvertTimeFromUtc(AppDateTime.UtcNow, tz) + }; + } + + public class RequestTimeZoneInfo + { + public TimeZoneInfo TimeZoneInfo { get; set; } + public int Offset { get; set; } + public DateTime LocalDateTime { get; set; } + } }
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