using Microsoft.AspNetCore.Mvc;
using YD_TrainingCompetition_Api.Serial;

namespace YD_TrainingCompetition_Api.Controllers;

[ApiController]
[Route("api/[controller]")]
// SerialController 给前端提供串口管理入口：
// 查询串口列表、查看状态、手动打开和关闭串口。
public sealed class SerialController : ControllerBase
{
    private readonly ISerialGateway _serial;

    public SerialController(ISerialGateway serial)
    {
        _serial = serial;
    }

    // 返回当前机器所有可见串口，供配置页下拉框选择。
    [HttpGet("ports")]
    public IActionResult GetPorts() => Ok(_serial.GetAvailablePorts());

    // 返回当前串口连接状态，便于前端展示“已连接/未连接”。
    [HttpGet("status")]
    public IActionResult GetStatus() => Ok(new { isOpen = _serial.IsOpen, port = _serial.CurrentPort });

    // 手动切换到指定串口。
    [HttpPost("open/{portName}")]
    public async Task<IActionResult> Open(string portName, CancellationToken cancellationToken)
    {
        await _serial.OpenAsync(portName, cancellationToken);
        return Ok(new { message = "opened", port = portName });
    }

    // 主动关闭当前已打开的串口。
    [HttpPost("close")]
    public async Task<IActionResult> Close(CancellationToken cancellationToken)
    {
        await _serial.CloseAsync(cancellationToken);
        return Ok(new { message = "closed" });
    }
}