using MedicalDatabaseContracts;
using MedicalDatabaseContracts.Models;
using MedicalDatabaseContracts.SearchModels;
using MedicalDatabaseContracts.ViewModels;
using Microsoft.Extensions.Logging;
using System.Windows.Forms;

namespace MedicalView.Visits
{
    public partial class FormVisit : FormAbstractDetail
    {
        private readonly ILogger _logger;
        private readonly ILogic<Visit, VisitViewModel, VisitSearchModel> _visitLogic;
        private readonly ILogic<Diagnose, DiagnoseViewModel, DiagnoseSearchModel> _diagnoseLogic;
        private readonly ILogic<Doctor, DoctorViewModel, DoctorSearchModel> _doctorLogic;
        private readonly ILogic<Patient, PatientViewModel, PatientSearchModel> _patientLogic;
        private readonly ILogic<Specialization, SpecializationViewModel, SpecializationSearchModel> _specLogic;
        public FormVisit(
            ILogger<FormVisit> logger,
            ILogic<Visit, VisitViewModel, VisitSearchModel> visitLogic,
            ILogic<Diagnose, DiagnoseViewModel, DiagnoseSearchModel> diagnoseLogic,
            ILogic<Doctor, DoctorViewModel, DoctorSearchModel> doctorLogic,
            ILogic<Patient, PatientViewModel, PatientSearchModel> patientLogic,
            ILogic<Specialization, SpecializationViewModel, SpecializationSearchModel> specLogic)
        {
            InitializeComponent();
            _logger = logger;
            _visitLogic = visitLogic;
            _diagnoseLogic = diagnoseLogic;
            _doctorLogic = doctorLogic;
            _patientLogic = patientLogic;
            _specLogic = specLogic;
        }

        private void ApplyToolStripMenuItem_Click(object sender, EventArgs e)
        {
            if (comboBoxPatient.SelectedItem == null)
            {
                MessageBox.Show("Выберите пациента", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            else if (comboBoxDoctor.SelectedItem == null)
            {
                MessageBox.Show("Выберите врача", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                return;
            }
            _logger.LogInformation("Сохранение модели приема");
            try
            {
                var model = new Visit
                {
                    Id = ModelId ?? 0,
                    Comment = textBoxComment.Text,
                    PatientId = (comboBoxPatient.SelectedItem as PatientViewModel).Id,
                    DoctorId = (comboBoxDoctor.SelectedItem as DoctorViewModel).Id,
                    DiagnoseId = comboBoxDiagnose.SelectedItem != null ? (comboBoxDiagnose.SelectedItem as DiagnoseViewModel).Id : null,
                    Date = DateOnly.FromDateTime(datePicker.Value),
                    Time = TimeOnly.FromDateTime(timePicker.Value)
                };
                var operationResult = ModelId.HasValue ? _visitLogic.Update(model) : _visitLogic.Create(model);
                if (!operationResult)
                {
                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
                }
                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
                DialogResult = DialogResult.OK;
                Close();
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка сохранения модели приема");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        private void CancelToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Cancel();
        }

        private void FormVisit_Load(object sender, EventArgs e)
        {
            var patients = _patientLogic.ReadList();
            var doctors = _doctorLogic.ReadList();
            var diagnoses = _diagnoseLogic.ReadList();

            comboBoxPatient.DataSource = patients;
            comboBoxPatient.SelectedIndex = -1;

            comboBoxDoctor.DataSource = doctors;
            comboBoxDoctor.SelectedIndex = -1;

            comboBoxDiagnose.DataSource = diagnoses;
            comboBoxDiagnose.SelectedIndex = -1;

            if (ModelId.HasValue)
            {
                try
                {
                    _logger.LogInformation("Получение модели приема");
                    var view = _visitLogic.ReadElement(ModelId.Value);
                    if (view != null)
                    {
                        textBoxComment.Text = view.Comment;
                        datePicker.Value = view.Date.ToDateTime(view.Time);
                        timePicker.Value = view.Date.ToDateTime(view.Time);
                        if (view.DiagnoseId != null)
                        {
                            comboBoxDiagnose.SelectedIndex = diagnoses.FindIndex(x => x.Id == view.DiagnoseId);
                        }
                        comboBoxDoctor.SelectedIndex = doctors.FindIndex(x => x.Id == view.DoctorId);
                        comboBoxPatient.SelectedIndex = patients.FindIndex(x => x.Id == view.PatientId);
                    }
                }
                catch (Exception ex)
                {
                    _logger.LogError(ex, "Ошибка получения модели приема");
                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }

        public void DeleteAllDatabaseData()
        {
            try
            {
                _logger.LogInformation("Удаление всех данных БД");
                _visitLogic.DeleteAll();
                _diagnoseLogic.DeleteAll();
                _doctorLogic.DeleteAll();
                _specLogic.DeleteAll();
                _patientLogic.DeleteAll();
                MessageBox.Show("Все данные успешно удалены", "Успех", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "Ошибка получения модели приема");
                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }

        public void GenerateRandomDatabaseData()
        {
            int specsCount = 100;
            int diagnosesCount = 100;
            int doctorsCount = 100;
            int patientsCount = 100;
            int visitsCount = 100;

            double avgInsertSpecsTimer = 0;
            double avgInsertDiagnosesTimer = 0;
            double avgInsertDoctorsTimer = 0;
            double avgInsertPatientsTimer = 0;
            double avgInsertVisitsTimer = 0;
            double temp = 0;

            Random rnd = new();

            for (int i = 0; i < specsCount; i++)
            {
                _specLogic.Create(new Specialization
                {
                    Name = i.ToString(),
                    IsPediatric = Convert.ToBoolean(rnd.Next(2)),
                    IsTherapeutic = Convert.ToBoolean(rnd.Next(2))
                }, out temp);
                avgInsertSpecsTimer += temp;
            }
            avgInsertSpecsTimer /= specsCount;

            var specs = _specLogic.ReadList();

            for (int i = 0; i < diagnosesCount; i++)
            {
                _diagnoseLogic.Create(new Diagnose
                {
                    Name = i.ToString()
                }, out temp);
                avgInsertDiagnosesTimer += temp;
            }
            avgInsertDiagnosesTimer /= diagnosesCount;

            var diagnoses = _diagnoseLogic.ReadList();

            for (int i = 0; i < doctorsCount; i++)
            {
                _doctorLogic.Create(new Doctor { 
                    Name = i.ToString(),
                    Surname = i.ToString(),
                    Patronymic = i.ToString(),
                    PhoneNumber = i.ToString(),
                    SpecializationId = specs[rnd.Next(specs.Count)].Id
                }, out temp);
                avgInsertDoctorsTimer += temp;
            }

            avgInsertDoctorsTimer /= doctorsCount;

            var doctors = _doctorLogic.ReadList();

            for (int i = 0; i < patientsCount; i++)
            {
                _patientLogic.Create(new Patient {
                    Name = i.ToString(),
                    Surname = i.ToString(),
                    Patronymic = i.ToString(),
                    PhoneNumber = i.ToString(),
                    Birthday = new DateTime(2021, 12, 21),
                    Gender = rnd.Next(2) == 0 ? "М" : "Ж",
                    Height = rnd.Next(100, 250),
                    Weight = rnd.Next(50, 100)
                }, out temp);
                avgInsertPatientsTimer += temp;
            }

            avgInsertPatientsTimer /= patientsCount;
            var patients = _patientLogic.ReadList();

            for (int i = 0; i < visitsCount; i++)
            {
                _visitLogic.Create(new Visit {
                    Date = new DateOnly(2021, 12, 12),
                    Time = new TimeOnly(12, 34),
                    PatientId = patients[rnd.Next(patients.Count)].Id,
                    DoctorId = doctors[rnd.Next(doctors.Count)].Id,
                    DiagnoseId = diagnoses[rnd.Next(diagnoses.Count)].Id,
                    Comment = "iusnefiuesnfes yf ey fiuewfwe fhweiufiuefiuweh fwehf uewyiufwe fuewoiuf oweyiuf weuif ioewfuyewuif yweufoiwefuywef"
                }, out temp);
                avgInsertVisitsTimer += temp;
            }

            avgInsertVisitsTimer /= visitsCount;

            MessageBox.Show(
                "Данные успешно сгенерированы!\n\n" +
                "Среднее время вставки:\n" +
                $"Специализации: {specsCount} шт : {avgInsertSpecsTimer} мск\n" +
                $"Диагнозы: {diagnosesCount} шт : {avgInsertDiagnosesTimer} мск\n" +
                $"Врачи: {doctorsCount} шт : {avgInsertDoctorsTimer} мск\n" +
                $"Пациенты: {patientsCount} шт : {avgInsertPatientsTimer} мск\n" +
                $"Приемы: {visitsCount} шт : {avgInsertVisitsTimer} мск\n",
                "Успех",
                MessageBoxButtons.OK,
                MessageBoxIcon.Information);
        }
    }
}