/// <summary>
/// This method deletes the selected weathe object from the file
/// </summary>
/// <param name="weather">Accepts the weather object to delete</param>
/// <returns>True if object if the object was removed</returns>
public bool deleteWeather(WeatherModel weather)
{
string conv = File.ReadAllText(weatherPath);
string write = string.Empty;
List <WeatherModel> oldList = new List <WeatherModel>();
oldList = JsonConvert.DeserializeObject <List <WeatherModel> >(conv);
foreach (WeatherModel item in oldList)
{
if (item.City.Equals(weather.City) && item.Date == weather.Date)
{
oldList.Remove(item);
break;
}
}
try
{
write = JsonConvert.SerializeObject(oldList);
File.WriteAllText(weatherPath, write);
MessageBox.Show("Data deleted");
return(true);
}
catch
{
MessageBox.Show("Could not delete the data");
return(false);
}
}
JSONconnection js = new JSONconnection(); //Create an instance f the JSON class to use the JSON methods
//----------------------------
//Begin helper methods
//-------------------------------
//Method to create the test data
private void SetTestValues()
{
//This is only to recreate the test data
//--------------------
File.Delete("weatherdata.json");
js.createFiles();
//-------------------
DateTime d1 = DateTime.Today;
DateTime d2 = DateTime.Today.AddDays(1);
DateTime d3 = DateTime.Today.AddDays(2);
DateTime d4 = DateTime.Today.AddDays(3);
DateTime d5 = DateTime.Today.AddDays(4);
string[] cit = { "Johannesburg", "Pretoria", "Durban", "Polokwane", "Cape Town", "Johannesburg", "Pretoria", "Durban", "Polokwane", "Cape Town", "Johannesburg", "Pretoria", "Durban", "Polokwane", "Cape Town", "Johannesburg", "Pretoria", "Durban", "Polokwane", "Cape Town", "Johannesburg", "Pretoria", "Durban", "Polokwane" };
DateTime[] dates = { d1, d1, d1, d1, d1, d2, d2, d2, d2, d2, d3, d3, d3, d3, d3, d4, d4, d4, d4, d4, d5, d5, d5, d5, d5 };
double[] maxes = { 25, 27, 30, 32, 24, 21, 23, 33, 20, 20, 28, 29, 31, 19, 17, 34, 22, 37, 29, 26, 23, 19, 10, 32, 24 };
double[] mins = { 18, 17, 20, 12, 14, 12, 11, 10, 17, 19, 10, 9, 20, 21, 13, 14, 19, 22, 23, 18, 19, 7, 2, 1, 4 };
double[] humids = { 10, 7, 3, 32, 4, 1, 27, 33, 12, 44, 18, 17, 33, 92, 24, 30, 27, 13, 52, 84, 40, 8, 33, 22, 64 };
double[] precips = { 23, 38, 2, 4, 10, 6, 76, 43, 52, 44, 20, 34, 24, 55, 24, 14, 56, 25, 32, 46, 67, 35, 35, 32, 4 };
double[] winds = { 32, 47, 11, 51, 13, 30, 7, 3, 35, 23, 10, 17, 11, 45, 43, 60, 37, 41, 23, 32, 33, 77, 91, 65, 3 };
int[] CloudCover = { 1, 2, 3, 4, 1, 2, 3, 4, 1, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2 };
string[] uvIndex = { "Low", "High", "Medium", "High", "Medium", "Low", "High", "Medium", "High", "Medium", "Low", "High", "Medium", "High", "Medium", "Low", "High", "Medium", "High", "Medium", "Low", "High", "Medium", "High", "Medium" };
for (int index = 0; index < cit.Length; index++)
{
WeatherModel hu = new WeatherModel();
hu.City = cit[index];
hu.Date = dates[index];
hu.Max = maxes[index];
hu.Min = mins[index];
hu.Precipitation = precips[index];
hu.Humidity = humids[index];
hu.Wind = winds[index];
hu.CloudCover = CloudCover[index];
hu.UvIndex = uvIndex[index];
hu.IsCelsius = true;
weath.Add(hu);
}
js.writeWeatherFile(weath); //write the test values to the file
}
/// <summary>
/// //This method will overwrite the existing weather data
/// </summary>
/// <param name="obj"></param>
public bool overwriteFile(WeatherModel obj)
{
string conv = File.ReadAllText(weatherPath);//read all data from the file
string write = string.Empty;
List <WeatherModel> List = new List <WeatherModel>();
List = JsonConvert.DeserializeObject <List <WeatherModel> >(conv);
foreach (WeatherModel item in List)
{
if (item.City.Equals(obj.City) && item.Date == obj.Date)
{
item.Max = obj.Max;
item.Min = obj.Min;
item.Humidity = obj.Humidity;
item.Precipitation = obj.Precipitation;
item.UvIndex = obj.UvIndex;
item.Wind = obj.Wind;
item.CloudCover = obj.CloudCover;
item.IsCelsius = obj.IsCelsius;
}
}
try
{
write = JsonConvert.SerializeObject(List);
File.WriteAllText(weatherPath, write);
return(true);
}
catch
{
MessageBox.Show("Could not overwrite the data");
return(false);
}
}
//This event will capture the weather forecast
private void btnCapture_Click(object sender, EventArgs e)
{
JSONconnection js = new JSONconnection(); //create an object of the JSONconnection class in order to manipulate the JSON file
WeatherModel w = new WeatherModel(); // create a weather object that will capture all the weather information
weath = js.readWeatherFile(); // read all the values in the weather file into a list
bool valid = false;
if (cboCity1.SelectedIndex == -1) // only enter if an item has been selected
{
captureError.SetError(cboCity1, "Please select a city"); // if an item has not been selected display an error message
}
else
{
//check for errors first
if (errorCheck(txtMax) == false) // check if the control is a numeric value and check if it is not empty
{
valid = false; //if there is an error end the event here and return till the error is cleared
return;
}
if (errorCheck(txtMin) == false)
{
valid = false;
return;
}
if (Convert.ToDouble(txtMin) > Convert.ToDouble(txtMax)) // ensure that the minimum temperature is not greater than the maximum
{
captureError.SetError(txtMin, "The minimum temperature cannot be greater than the maximum temperature");
valid = false;
return;
}
if (errorCheck(txtHumid) == false)
{
valid = false;
return;
}
if (errorCheck(txtMin) == false)
{
valid = false;
return;
}
if (errorCheck(txtWind) == false)
{
valid = false;
return;
}
//check the combobox controls for errors
if (cboCloud.SelectedIndex == -1)
{
captureError.SetError(cboCloud, "Please select the cloud cover");
valid = false;
return;
}
else
{
captureError.Clear(); //clear any errors that were created
}
if (cboUvIndex.SelectedIndex == -1)
{
captureError.SetError(cboUvIndex, "Please select the UV index");
valid = false;
return;
}
else
{
captureError.Clear(); //clear any errors that were created
valid = true;
}
if (valid)
{
captureError.Clear(); //clear any previous errors
foreach (WeatherModel v in weath)
{
//check if user wants to overwrite or continue with the operation
if (v.City.Equals(cboCity1.Text) && v.Date == dtpDate.Value.Date) //check if there is already a value with the same date
{
//if a value already exits for the this city and date, ask the user if they would like to overide
DialogResult dr = MessageBox.Show("Values already exits for this city on this day. Would you like to overwrite?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (dr == DialogResult.Yes)
{
//Add all the values to the weather object
w.City = cboCity1.Text;
w.Date = dtpDate.Value.Date;
w.Max = Convert.ToDouble(txtMax.Text);
w.Min = Convert.ToDouble(txtMin.Text);
w.Humidity = Convert.ToDouble(txtHumid.Text);
w.Precipitation = Convert.ToDouble(txtPrecip.Text);
w.Wind = Convert.ToDouble(txtWind.Text);
w.CloudCover = cboCloud.SelectedIndex;
w.UvIndex = cboUvIndex.Text;
if (radCelsius.Checked == true)
{
w.IsCelsius = true;
}
else
{
w.IsCelsius = false;
}
if (js.overwriteFile(w)) //overwrite the existing value if the user has chosen to update
{
MessageBox.Show("Data overwritten successfully");
cboCity1.SelectedIndex = -1;
txtMax.Clear();
txtMin.Clear();
txtHumid.Clear();
txtPrecip.Clear();
txtWind.Clear();
cboCloud.SelectedIndex = -1;
cboUvIndex.SelectedIndex = -1;
}
else
{
MessageBox.Show("There was an error with the request", "Overwrite error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
valid = false;
break; //break the foreach
}
else
{
//if the user doesnt want to overwrite, clear all the fields
cboCity1.SelectedIndex = -1;
txtMax.Clear();
txtMin.Clear();
txtHumid.Clear();
txtPrecip.Clear();
txtWind.Clear();
cboCloud.SelectedIndex = -1;
cboUvIndex.SelectedIndex = -1;
valid = false; // set valid to false to end this event
break; //break the foreach
}
}
}
//continue if there were no errors and no overwrite request
if (valid)
{
captureError.Clear(); //clear any previous errors
w.City = cboCity1.Text;
w.Date = Convert.ToDateTime(dtpDate.Value.ToShortDateString()); //input the date
w.Max = Convert.ToDouble(txtMax.Text); //convert and input the max value
w.Min = Convert.ToDouble(txtMin.Text); //convert and input
w.Humidity = Convert.ToDouble(txtHumid.Text); //convert and input the data
w.Precipitation = Convert.ToDouble(txtPrecip.Text); //convert and input
w.Wind = Convert.ToDouble(txtWind.Text); //convert the value and input it
w.CloudCover = cboCloud.SelectedIndex; //convert the value and input it
w.UvIndex = cboUvIndex.Text;
if (radCelsius.Checked == true)
{
w.IsCelsius = true;
}
else
{
w.IsCelsius = false;
}
weath.Add(w); // add the object to the list
DialogResult dg = MessageBox.Show("Would you like to add more values", "Enter More", MessageBoxButtons.YesNo);
if (dg == DialogResult.Yes)
{
//reset all the controls and return
cboCity1.SelectedIndex = -1;
txtMax.Clear();
txtMin.Clear();
txtHumid.Clear();
txtPrecip.Clear();
txtWind.Clear();
cboCloud.SelectedIndex = -1;
cboUvIndex.SelectedIndex = -1;
return;
}
else
{
js.writeWeatherFile(weath);
cboCity1.SelectedIndex = -1;
txtMax.Clear();
txtMin.Clear();
txtHumid.Clear();
txtPrecip.Clear();
cboCloud.SelectedIndex = -1;
cboUvIndex.SelectedIndex = -1;
SetAcivePanel(pnlHome);
}
}
}
}
}
//end of helper methods
//--------------------------------
//start of events
//-----------------------------
//this method will overwrite the data stored in the file with new values
private void btnCapture_Click(object sender, EventArgs e)
{
WeatherModel weather = new WeatherModel();
bool valid = true;
weath = js.readWeatherFile();
//check for errors
#region
if (errorCheck(txtMax) == false) // check if the control is a numeric value and check if it is not empty
{
valid = false;
return;
}
if (errorCheck(txtMin) == false)
{
valid = false;
return;
}
if (errorCheck(txtHumid) == false)
{
valid = false;
return;
}
if (errorCheck(txtMin) == false)
{
valid = false;
return;
}
if (errorCheck(txtWind) == false)
{
valid = false;
return;
}
if (cboCloud.SelectedIndex == -1)
{
captureError.SetError(cboCloud, "Please select the cloud cover");
valid = false;
}
if (cboUvIndex.SelectedIndex == -1)
{
captureError.SetError(cboUvIndex, "Please select the UV index");
valid = false;
}
#endregion
if (valid)
{
captureError.Clear();
foreach (WeatherModel item in weath)
{
if (item.City.Equals(cboCity.Text) && item.Date == dtpDate.Value.Date) //check if there is already a value with the same date
{
//if a value already exits for the this city and date, ask the user if they would like to overide
DialogResult dr = MessageBox.Show("are you sure you would like to overwrite the values?", "", MessageBoxButtons.YesNo, MessageBoxIcon.Exclamation);
if (dr == DialogResult.Yes)
{
weather.City = cboCity.Text;
weather.Date = dtpDate.Value.Date;
weather.Max = Convert.ToDouble(txtMax.Text);
weather.Min = Convert.ToDouble(txtMin.Text);
weather.Humidity = Convert.ToDouble(txtHumid.Text);
weather.Precipitation = Convert.ToDouble(txtPrecip.Text);
weather.Wind = Convert.ToDouble(txtWind.Text);
weather.CloudCover = cboCloud.SelectedIndex;
weather.UvIndex = cboUvIndex.Text;
if (js.overwriteFile(weather))
{
MessageBox.Show("Data overwritten successfully");
ForecasterMenu fm = new ForecasterMenu(fUser);
this.Hide();
fm.Show();
}
else
{
MessageBox.Show("There was an error with the request", "Overwrite error", MessageBoxButtons.OK, MessageBoxIcon.Error);
break;
}
}
else
{
MessageBox.Show("Operation cancelled", "Overwrite cancelled", MessageBoxButtons.OK, MessageBoxIcon.Information);
cboCity.SelectedIndex = -1;
txtMax.Clear();
txtMin.Clear();
txtHumid.Clear();
txtPrecip.Clear();
txtWind.Clear();
cboCloud.SelectedIndex = -1;
cboUvIndex.SelectedIndex = -1;
}
}
}
}
}
