using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Cors;
using Peripherals.SwitchClient;

namespace server.Controllers;

[ApiController]
[Route("api/[controller]")]
public class SwitchController : ControllerBase
{
    private static readonly NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();

    private readonly Database.UserManager _userManager = new();

    /// <summary>
    /// 获取示波器实例
    /// </summary>
    private SwitchCtrl? GetSwitchCtrl()
    {
        var userName = User.Identity?.Name;
        if (string.IsNullOrEmpty(userName))
            return null;

        var userRet = _userManager.GetUserByName(userName);
        if (!userRet.IsSuccessful || !userRet.Value.HasValue)
            return null;

        var user = userRet.Value.Value;
        if (user.BoardID == Guid.Empty)
            return null;

        var boardRet = _userManager.GetBoardByID(user.BoardID);
        if (!boardRet.IsSuccessful || !boardRet.Value.HasValue)
            return null;

        var board = boardRet.Value.Value;
        return new SwitchCtrl(board.IpAddr, board.Port, 0);
    }

    /// <summary>
    /// 启用或禁用 Switch 外设
    /// </summary>
    /// <param name="enable">是否启用</param>
    /// <returns>操作结果</returns>
    [HttpPost("enable")]
    [EnableCors("Users")]
    [ProducesResponseType(typeof(bool), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(Exception), StatusCodes.Status500InternalServerError)]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    public async Task<IActionResult> SetEnable([FromQuery] bool enable)
    {
        var switchCtrl = GetSwitchCtrl();
        if (switchCtrl == null)
            return BadRequest("Can't get user or board info");

        var result = await switchCtrl.SetEnable(enable);
        if (!result.IsSuccessful)
        {
            logger.Error(result.Error, "SetEnable failed");
            return StatusCode(500, result.Error);
        }
        return Ok(result.Value);
    }

    /// <summary>
    /// 控制指定编号的 Switch 开关
    /// </summary>
    /// <param name="num">开关编号</param>
    /// <param name="onOff">开/关</param>
    /// <returns>操作结果</returns>
    [HttpPost("switch")]
    [EnableCors("Users")]
    [ProducesResponseType(typeof(bool), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ArgumentException), StatusCodes.Status400BadRequest)]
    [ProducesResponseType(typeof(Exception), StatusCodes.Status500InternalServerError)]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    public async Task<IActionResult> SetSwitchOnOff([FromQuery] int num, [FromQuery] bool onOff)
    {
        if (num <= 0 || num > 6)
            return BadRequest(new ArgumentException($"Switch num should be 1~5, instead of {num}"));

        var switchCtrl = GetSwitchCtrl();
        if (switchCtrl == null)
            return BadRequest("Can't get user or board info");

        var result = await switchCtrl.SetSwitchOnOff(num, onOff);
        if (!result.IsSuccessful)
        {
            logger.Error(result.Error, $"SetSwitchOnOff({num}, {onOff}) failed");
            return StatusCode(500, result.Error);
        }
        return Ok(result.Value);
    }

    /// <summary>
    /// 控制 Switch 开关
    /// </summary>
    /// <param name="keyStatus">开关状态</param>
    /// <returns>操作结果</returns>
    [HttpPost("MultiSwitch")]
    [EnableCors("Users")]
    [ProducesResponseType(typeof(bool), StatusCodes.Status200OK)]
    [ProducesResponseType(typeof(ArgumentException), StatusCodes.Status400BadRequest)]
    [ProducesResponseType(typeof(Exception), StatusCodes.Status500InternalServerError)]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    public async Task<IActionResult> SetMultiSwitchsOnOff(bool[] keyStatus)
    {
        if (keyStatus.Length == 0 || keyStatus.Length > 6) return BadRequest(
                new ArgumentException($"Switch num should be 1~5, instead of {keyStatus.Length}"));

        var switchCtrl = GetSwitchCtrl();
        if (switchCtrl == null)
            return BadRequest("Can't get user or board info");

        for (int i = 0; i < keyStatus.Length; i++)
        {
            var result = await switchCtrl.SetSwitchOnOff(i + 1, keyStatus[i]);
            if (!result.IsSuccessful)
            {
                logger.Error(result.Error, $"SetSwitchOnOff({i}, {keyStatus[i]}) failed");
                return StatusCode(500, result.Error);
            }
            if (!result.Value) return Ok(false);
        }
        return Ok(true);
    }
}