ilyalehchylin/educats-xamarin

using EduCATS.Data.Models;
using EduCATS.Helpers.Forms;
using EduCATS.Helpers.Logs;
using EduCATS.Networking;
using EduCATS.Networking.Models.SaveMarks;
using EduCATS.Networking.Models.SaveMarks.LabSchedule;
using EduCATS.Pages.Statistics.Enums;
using EduCATS.Pages.Statistics.Marks.Models;
using EduCATS.Pages.Statistics.Students.Models;
using Newtonsoft.Json;
using Nyxbull.Plugins.CrossLocalization;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using Xamarin.Forms;

namespace EduCATS.Pages.SaveLabsAndPracticeMarks.Views
{
    public class SavePracticeAndLabsPageViewModel : ViewModel
    {
        public readonly IPlatformServices _services;
        public string _title { get; set; }
        public TakedLabs _takedLabs { get; set; }
        public LabsVisitingList labsVisitingList;
        public LabsVisitingList practiceVisitingList;
        public List<StudentsPageModel> _currentLabsVisitingMarksSubGroup1;
        public List<StudentsPageModel> _currentLabsVisitingMarksSubGroup2;
        public List<string> FullNames { get; set; }

        public SavePracticeAndLabsPageViewModel(IPlatformServices services, int subjectId, object stat, int groupId, string title)
        {
            _services = services;
            _title = title;
            if (title == CrossLocalization.Translate("practice_mark"))
            {
                practiceVisitingList = stat as LabsVisitingList;
                _takedLabs = new TakedLabs();
                WebRequest request = WebRequest.Create(Links.GetPracticialsTest + "subjectId=" + subjectId + "&groupId=" + groupId);
                request.Headers.Add("Authorization", _services.Preferences.AccessToken);
                WebResponse response = request.GetResponse();
                string json = "";
                using (Stream stream = response.GetResponseStream())
                {
                    using (StreamReader reader = new StreamReader(stream))
                    {
                        string line = "";
                        while ((line = reader.ReadLine()) != null)
                        {
                            json += line;
                        }
                    }
                };
                _takedLabs = JsonConvert.DeserializeObject<TakedLabs>(json);
                createPracticialsMarksPage(practiceVisitingList);
            }
            else if (title == CrossLocalization.Translate("stats_page_labs_rating"))
            {
                labsVisitingList = stat as LabsVisitingList;
                _takedLabs = new TakedLabs();
                WebRequest request = WebRequest.Create(Links.GetLabsTest + "subjectId=" + subjectId + "&groupId=" + groupId);
                request.Headers.Add("Authorization", _services.Preferences.AccessToken);
                WebResponse response = request.GetResponse();
                string json = "";
                using (Stream stream = response.GetResponseStream())
                {
                    using (StreamReader reader = new StreamReader(stream))
                    {
                        string line = "";
                        while ((line = reader.ReadLine()) != null)
                        {
                            json += line;
                        }
                    }
                };
                _takedLabs = JsonConvert.DeserializeObject<TakedLabs>(json);
                createLabsMarksPage(labsVisitingList);
            }
        }

        private void createLabsMarksPage(LabsVisitingList labsVisitingList)
        {
            FullNames = new List<string>();
            LabsVisitingMarks = new List<StudentsPageModel>();
            Date1 = new List<string>();
            Date2 = new List<string>();
            SubGroup = new List<string>();
            _currentLabsVisitingMarksSubGroup1 = new List<StudentsPageModel>();
            _currentLabsVisitingMarksSubGroup2 = new List<StudentsPageModel>();
            var currentStudents = new List<StudentsPageModel>();
            foreach (var group in labsVisitingList.Students)
            {
                if (group.SubGroup == 1)
                {
                    _currentLabsVisitingMarksSubGroup1.Add(new StudentsPageModel(group.Login, group.FullName));
                    FullNames.Add(group.FullName);
                }
                else
                {
                    _currentLabsVisitingMarksSubGroup2.Add(new StudentsPageModel(group.Login, group.FullName));
                    FullNames.Add(group.FullName);
                }
            }
            foreach (var lab in _takedLabs.ScheduleProtectionLabs.Where(v => v.SubGroup == 1))
            {
                Date1.Add(lab.Date);
            };
            foreach (var lab in _takedLabs.ScheduleProtectionLabs.Where(v => v.SubGroup == 2))
            {
                Date2.Add(lab.Date);
            };
            foreach (var lab in _takedLabs.ScheduleProtectionLabs)
            {
                if (!SubGroup.Contains(CrossLocalization.Translate("sub_group") + lab.SubGroup.ToString()))
                {
                    SubGroup.Add(CrossLocalization.Translate("sub_group") + lab.SubGroup.ToString());
                }
            }
            LabsVisitingMarksSubGroup = currentStudents;
            LabsVisitingMarksSubGroupOne = _currentLabsVisitingMarksSubGroup1;
            LabsVisitingMarksSubGroupTwo = _currentLabsVisitingMarksSubGroup2;
            SelectedSubGroup = SubGroup.FirstOrDefault();
        }

        private void createPracticialsMarksPage(LabsVisitingList practiceVisitingList)
        {
            var currentStudents = new List<StudentsPageModel>();
            foreach (var pract in practiceVisitingList.Students)
            {
                currentStudents.Add(new StudentsPageModel(pract.Login, pract.FullName));
            }
            Students = currentStudents;
        }

        List<string> _subGroup;
        public List<string> SubGroup
        {
            get { return _subGroup; }
            set { SetProperty(ref _subGroup, value); }
        }

        List<string> _date1;
        public List<string> Date1
        {
            get { return _date1; }
            set { SetProperty(ref _date1, value); }
        }

        List<string> _date2;
        public List<string> Date2
        {
            get { return _date2; }
            set { SetProperty(ref _date2, value); }
        }

        List<StudentsPageModel> _labsVisitingMarks;
        public List<StudentsPageModel> LabsVisitingMarks
        {
            get { return _labsVisitingMarks; }
            set { SetProperty(ref _labsVisitingMarks, value); }
        }

        List<StudentsPageModel> _labsVisitingMarksSubGroup;
        public List<StudentsPageModel> LabsVisitingMarksSubGroup
        {
            get { return _labsVisitingMarksSubGroup; }
            set { SetProperty(ref _labsVisitingMarksSubGroup, value); }
        }

        List<StudentsPageModel> _labsVisitingMarksSubGroupTwo;
        public List<StudentsPageModel> LabsVisitingMarksSubGroupTwo
        {
            get { return _labsVisitingMarksSubGroupTwo; }
            set { SetProperty(ref _labsVisitingMarksSubGroupTwo, value); }
        }

        List<StudentsPageModel> _labsVisitingMarksSubGroupOne;
        public List<StudentsPageModel> LabsVisitingMarksSubGroupOne
        {
            get { return _labsVisitingMarksSubGroupOne; }
            set { SetProperty(ref _labsVisitingMarksSubGroupOne, value); }
        }

        List<string> _datelabs;
        public List<string> DateLabs
        {
            get { return _datelabs; }
            set { SetProperty(ref _datelabs, value); }
        }

        public int selSubGroup { get; set; }

        object _selectedItem;
        public object SelectedItem
        {
            get { return _selectedItem; }
            set
            {
                SetProperty(ref _selectedItem, value);

                if (_selectedItem != null)
                {
                    openPage(_selectedItem);
                }
            }
        }

        List<StudentsPageModel> _students;
        public List<StudentsPageModel> Students
        {
            get { return _students; }
            set { SetProperty(ref _students, value); }
        }

        string _selectedSubGroup;
        public string SelectedSubGroup
        {
            get
            {
                if (SubGroup.Count != 0)
                {
                    if (_selectedSubGroup == SubGroup[0])
                    {
                        LabsVisitingMarksSubGroup = LabsVisitingMarksSubGroupOne;
                        DateLabs = Date1;
                        selSubGroup = 1;
                    }
                    else if (_selectedSubGroup == SubGroup[1])
                    {
                        LabsVisitingMarksSubGroup = LabsVisitingMarksSubGroupTwo;
                        DateLabs = Date2;
                        selSubGroup = 2;
                    }
                }
                return _selectedSubGroup;
            }
            set
            {
                SetProperty(ref _selectedSubGroup, value);
            }
        }

        void openPage(object selectedObject)
        {
            try
            {
                if (selectedObject == null || selectedObject.GetType() != typeof(StudentsPageModel))
                {
                    return;
                }

                var student = selectedObject as StudentsPageModel;

                if (_title == CrossLocalization.Translate("practice_mark"))
                {
                    _services.Navigation.OpenAddSingleMark(_title, student.Name, practiceVisitingList, _takedLabs, selSubGroup);
                }
                else if (_title == CrossLocalization.Translate("stats_page_labs_rating"))
                {
                    _services.Navigation.OpenAddSingleMark(_title, student.Name, labsVisitingList, _takedLabs, selSubGroup);
                }

            }
            catch (Exception ex)
            {
                AppLogs.Log(ex);
            }
        }
    }
}