public TodolistViewModel()
{
_todolists = new ObservableCollection <Todolist>();
_switchTodolist = new Xamarin.Forms.Command(async(id) => {
// Set the header
IDictionary <string, string> headers = new Dictionary <string, string>();
// Fetch the user token
headers.Add("Authorization", "Bearer " + App.UserSession.Token);
// define the body
string body = " { \"todolistId\": \"" + id + "\" } ";
CurrentItems = await App.WsHost.ExecuteGet <ObservableCollection <Item> >("todos", "get", headers, body);
});
_tickItem = new Xamarin.Forms.Command(async(id) => {
// Get the selected item
Item item = CurrentItems.Where <Item>(item => item.Id == id.ToString()).FirstOrDefault();
// Set the header
IDictionary <string, string> headers = new Dictionary <string, string>();
// Fetch the user token
headers.Add("Authorization", "Bearer " + App.UserSession.Token);
// Set paraeters
string[] parameters = { id.ToString() };
// Check it in the data base
await App.WsHost.ExecutePut("todos", "check", headers, null, parameters);
// Switch the boolean attribute of Done
item.Done = !item.Done;
CurrentItems[CurrentItems.IndexOf(item)] = item;
});
_addItem = new Xamarin.Forms.Command(async() =>
{
// Set the header
IDictionary <string, string> headers = new Dictionary <string, string>();
// Fetch the user token
headers.Add("Authorization", "Bearer " + App.UserSession.Token);
// define the body
string body = " { \"name\": \"" + FormTitle + "\",\"todolistId\": \"" + CurrentTodolist.Id + "\" } ";
// Check it in the data base
var item = await App.WsHost.ExecutePost <Item>("todos", "add", headers, body);
// Add to the current item
CurrentItems.Add(new Item
{
ItemTitle = item.ItemTitle,
Id = item.Id
});
// Empty the form
FormTitle = string.Empty;
});
_signout = new Xamarin.Forms.Command(() =>
{
try
{
// Remove the stored token
SecureStorage.Remove("oauth_token");
// Move to the sign in page
App.Current.MainPage = new SignInPage();
}
catch (Exception ex)
{
throw new Exception("Signout process: " + ex.Message);
}
});
_deleteItem = new Xamarin.Forms.Command(async(id) =>
{
try
{
//Item item = new Item();
// Get the selected item
// item = (from itm in CurrentItems
// where itm.Id == id.ToString()
// select itm)
//.FirstOrDefault<Item>();//CurrentItems.Where<Item>(item => item.Id == id.ToString()).FirstOrDefault();
// int itemIndex = CurrentItems.IndexOf(item);
// Set the header
IDictionary <string, string> headers = new Dictionary <string, string>();
// Fetch the user token
headers.Add("Authorization", "Bearer " + App.UserSession.Token);
// Set paraeters
string[] parameters = { id.ToString() };
// Check it in the data base
await App.WsHost.ExecuteDelete("todos", null, headers, null, parameters);
// ToDo: I'm reloading everery data but it's not a good things performance wise.
// I can't remove the item directely form the list because SwipeView is boken
//
// define the body
string body = " { \"todolistId\": \"" + CurrentTodolist.Id + "\" } ";
// Reload data
CurrentItems = await App.WsHost.ExecuteGet <ObservableCollection <Item> >("todos", "get", headers, body);
// Remove the item from the list
//CurrentItems.Remove(item);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
});
_addTodolist = new Xamarin.Forms.Command(async() =>
{
try
{
// Set the header
IDictionary <string, string> headers = new Dictionary <string, string>();
// Fetch the user token
headers.Add("Authorization", "Bearer " + App.UserSession.Token);
// define the body
string body = " { \"title\": \"" + FormTitle + "\" } ";
// Check it in the data base
var todolist = await App.WsHost.ExecutePost <Todolist>("todolists", "create", headers, body);
// Add to the current item
Todolists.Add(new Todolist
{
Title = todolist.Title,
Id = todolist.Id
});
// Empty the form
FormTitle = string.Empty;
UpdateCurrentTodolist(Todolists.Last());
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
});
// Fetch all the todolists
FetchTodolist();
}