using Microsoft.AspNetCore.Mvc;

namespace FishGameHost.Controllers;

[ApiController]
[Route("fishapi/[controller]")]
public class TimeController : ControllerBase
{
    /// <summary>
    /// 获取 FishApi 当前服务器时间，用于比较不同容器的系统时钟。
    /// </summary>
    [HttpGet("GetDateTime")]
    [ResponseCache(NoStore = true, Location = ResponseCacheLocation.None)]
    public IActionResult GetDateTime()
    {
        var dateTimeNow = DateTime.Now;
        var dateTimeNowOffset = new DateTimeOffset(dateTimeNow);
        var utcNow = DateTimeOffset.UtcNow;
        var dateTimeNowTimestamp = dateTimeNowOffset.ToUnixTimeMilliseconds();
        var utcNowTimestamp = utcNow.ToUnixTimeMilliseconds();

        return Ok(new
        {
            code = 200,
            data = new
            {
                service = "FishApi",
                timestamp = utcNowTimestamp,
                dateTimeNow = dateTimeNow.ToString("yyyy-MM-dd HH:mm:ss.fff"),
                dateTimeNowKind = dateTimeNow.Kind.ToString(),
                dateTimeNowTimestamp,
                dateTimeOffsetUtcNow = utcNow.ToString("yyyy-MM-dd HH:mm:ss.fff zzz"),
                dateTimeOffsetUtcNowTimestamp = utcNowTimestamp,
                differenceMs = utcNowTimestamp - dateTimeNowTimestamp,
                timeZone = TimeZoneInfo.Local.Id,
                utcOffset = dateTimeNowOffset.Offset.ToString(),
                container = Environment.MachineName
            }
        });
    }
}