/// <summary>
/// Gets the variable value asynchronous for the provided <paramref name="variable"/> name.
/// </summary>
/// <param name="variable">The variable.</param>
/// <returns></returns>
public async Task<Result<Variable>> GetVariableValueAsync(String variable)
{
if (variable == null)
{
throw new ArgumentNullException(nameof(variable));
}
Variable vari;
vari = await Task.Run(() => variables.FirstOrDefault(i => String.Compare(i.Name, variable) == 0));
if (vari == null)
{
vari = new Variable(this);
vari.Name = variable;
}
return await GetVariableValueAsync(vari);
}
/// <summary>
/// Gets the variable value asynchronous for the provided <paramref name="variable"/>.
/// </summary>
/// <param name="variable">The variable.</param>
/// <returns></returns>
public async Task<Result<Variable>> GetVariableValueAsync(Variable variable)
{
if (variable == null)
{
throw new ArgumentNullException(nameof(variable));
}
if (String.IsNullOrWhiteSpace(variable.Name))
{
throw new ArgumentException(Messages.PassedVariableMustHaveAName, nameof(variable));
}
var svariable = await Task.Run(() => variables.FirstOrDefault(i => i == variable));
if (svariable == null)
{
ParticleCloud.SyncContext.InvokeIfRequired(() =>
{
variables.Add(variable);
});
}
try
{
var response = await cloud.MakeGetRequestAsync($"devices/{Id}/{Uri.EscapeDataString(variable.Name)}");
if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
await cloud.RefreshTokenAsync();
response = await cloud.MakeGetRequestAsync($"devices/{Id}/{Uri.EscapeDataString(variable.Name)}");
if (response.StatusCode == System.Net.HttpStatusCode.Unauthorized)
{
return response.AsResult<Variable>();
}
}
if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
var tresult = response.Response.SelectToken("result");
variable.Value = tresult.Value<Object>().ToString();
/*
"name": "temperature",
"result": 46,
"coreInfo": {
"name": "weatherman",
"deviceID": "0123456789abcdef01234567",
"connected": true,
"last_handshake_at": "2015-07-17T22:28:40.907Z",
"last_app": ""
}*/
return new Result<Variable>
{
Success = true,
Data = variable
};
}
else
{
return response.AsResult<Variable>();
}
}
catch(HttpRequestException re)
{
return new Result<Variable>
{
Success = false,
Error = re.Message,
Exception = re
};
}
}
/// <summary>
/// Parses the variables.
/// </summary>
/// <param name="obj">The object.</param>
protected virtual void ParseVariables(JObject obj)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
var list = new List<Variable>();
foreach (var prop in obj.Properties())
{
var first = variables.FirstOrDefault(i => String.Compare(i.Name, prop.Name) == 0);
if (first == null)
{
first = new Variable(this)
{
Name = prop.Name,
Type = getVariableType(prop.Value)
};
}
else
{
first.Type = getVariableType(prop.Value);
}
list.Add(first);
}
ParticleCloud.SyncContext.InvokeIfRequired(() =>
{
variables.Clear();
foreach (var item in list)
{
variables.Add(item);
}
});
}
