using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Net.Http;
using System.Web;
using System.Windows.Forms;

namespace SatlocCloud.API.Sample
{
    public partial class frmMain : Form
    {
        #region Variables

        private HttpClient _httpClient;
        private string _baseUrl;
        private string _isAliveAPI;
        private string _authenticateUserAPI;
        private string _getAircraftListAPI;
        private string _uploadJobAPI;
        private string _getAircraftLogsAPI;
        private string _getAircraftLogDataAPI;
        private User _user;
        private List<Aircraft> _aircraftList = new List<Aircraft>();
        private Guid _selectAircraftId;
        private string _selectJobFile;
        private List<AircraftLog> _aircraftLogList;
        private AircraftLog _selectedLogData;

        private const string PMD_EXT = ".pmd";
        private const string PMH_EXT = ".pmh";

        #endregion

        #region Constructor

        public frmMain()
        {
            InitializeComponent();
        }

        #endregion

        #region Events

        private void frmMain_Load(object sender, EventArgs e)
        {
            // get values from App Config
            _baseUrl = ConfigurationManager.AppSettings["BaseUrl"].ToString();
            _isAliveAPI = ConfigurationManager.AppSettings["IsAliveAPI"].ToString();
            _authenticateUserAPI = ConfigurationManager.AppSettings["AuthenticateUserAPI"].ToString();
            _getAircraftListAPI = ConfigurationManager.AppSettings["GetAircraftListAPI"].ToString();
            _uploadJobAPI = ConfigurationManager.AppSettings["UploadJobAPI"].ToString();
            _getAircraftLogsAPI = ConfigurationManager.AppSettings["GetAircraftLogsAPI"].ToString();
            _getAircraftLogDataAPI = ConfigurationManager.AppSettings["GetAircraftLogDataAPI"].ToString();
            var userLogin = ConfigurationManager.AppSettings["UserLogin"].ToString();
            var password = ConfigurationManager.AppSettings["Password"].ToString();

            // instanciate HTTP Client
            _httpClient = new HttpClient { BaseAddress = new Uri(_baseUrl) };

            // check API service is available
            if (IsAlive())
            {
                // check if Authenticate API User is successful
                if(AuthenticateUser(userLogin, password))
                {
                    // get list of aircraft associated with the Company
                    GetAircraftList();


                    // enable controls if data exist
                    if(_aircraftList.Count > 0)
                    {
                        // enable group box
                        grpAPIData.Enabled = true;

                        // load Aircraft List
                        DisplayAircraftList();
                    }
                }
            }
        }

        private void lstAircraft_SelectedIndexChanged(object sender, EventArgs e)
        {
            // select selected aircraft
            _selectAircraftId = ((Aircraft)lstAircraft.SelectedItem).Id;

            // load selected aircraft log list
            GetAircraftLogs();

            // display selected aircraft log list
            DisplayAircraftLogs();

            // enable download all logs
            btnDownloadSelectedLog.Enabled = _selectedLogData != null && !string.IsNullOrEmpty(txtDownloadPath.Text);

            // enable download all logs
            btnDownloadAllLogs.Enabled = _aircraftLogList.Count > 0 && !string.IsNullOrEmpty(txtDownloadPath.Text);
        }

        private void btnSelectJob_Click(object sender, EventArgs e)
        {
            SelectJob();
        }

        private void btnUploadSelectedJob_Click(object sender, EventArgs e)
        {
            UploadSelectedJobData(_selectJobFile, _selectAircraftId, txtNotes.Text);
        }

        private void btnUploadMulitpleJobs_Click(object sender, EventArgs e)
        {
            UploadMultipeJobData();
        }

        private void lstLogList_SelectedIndexChanged(object sender, EventArgs e)
        {
            // set seleted log data
            _selectedLogData = (AircraftLog)lstLogList.SelectedItem;

            // enable download log
            btnDownloadSelectedLog.Enabled = !string.IsNullOrEmpty(txtDownloadPath.Text);
        }

        private void btnSelectPath_Click(object sender, EventArgs e)
        {
            using (var fldrDlg = new FolderBrowserDialog())
            {
                // quickly set download path
                if (fldrDlg.ShowDialog() == DialogResult.OK)
                {
                    //fldrDlg.SelectedPath -- your result
                    txtDownloadPath.Text = fldrDlg.SelectedPath;

                    // enable download selected log
                    btnDownloadSelectedLog.Enabled = _selectedLogData != null;

                    // enable download all logs
                    btnDownloadAllLogs.Enabled = _aircraftLogList.Count > 0;
                }
            }
        }

        private void btnDownloadSelectedLog_Click(object sender, EventArgs e)
        {
            DownloadSelectedLogData();
        }

        private void btnDownloadAllLogs_Click(object sender, EventArgs e)
        {
            DownloadAllLogData();
        }

        #endregion

        #region Private Methods

        private bool IsAlive()
        {
            var returnData = false;
            try
            {
                // create uri with parameters
                var builder = new UriBuilder(_baseUrl + _isAliveAPI);

                // initialize http client
                var client = new HttpClient();

                // execute get
                var response = client.GetAsync(builder.Uri).Result;
                returnData = GetBooleanResponse(response);
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }

            return returnData;
        }

        private bool AuthenticateUser(string userLogin, string password)
        {
            var returnData = false;
            try
            {
                // instanciate client
                var client = new HttpClient { BaseAddress = new Uri(_baseUrl) };

                // create uri with parameters
                var builder = new UriBuilder(_baseUrl + _authenticateUserAPI);
                builder.Query = "userLogin=" + HttpUtility.UrlEncode(userLogin) + "&password=" + HttpUtility.UrlEncode(password);

                var response = client.GetAsync(builder.Uri).Result;
                if (response.IsSuccessStatusCode)   //User should be returned
                {
                    // deserialize data local object APIUser
                    _user = response.Content.ReadAsAsync<User>().Result;
                    returnData = true;
                }
                else
                {
                    MessageBox.Show(response.ReasonPhrase.ToString());
                }
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
            return returnData;
        }

        public void GetAircraftList()
        {
            try
            {
                // create uri with parameters
                var builder = new UriBuilder(_baseUrl + _getAircraftListAPI);
                builder.Query = "userId=" + _user.UserId + "&companyId=" + _user.CompanyId;

                // execute get
                var response = _httpClient.GetAsync(builder.Uri).Result;
                _aircraftList = response.Content.ReadAsAsync<List<Aircraft>>().Result;
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }

        public void GetAircraftLogs()
        {
            try
            {
                // create uri with parameters
                var builder = new UriBuilder(_baseUrl + _getAircraftLogsAPI);
                builder.Query = "userId=" + _user.UserId + "&aircraftId=" + _selectAircraftId;

                // execute get
                var response = _httpClient.GetAsync(builder.Uri).Result;
                _aircraftLogList = response.Content.ReadAsAsync<List<AircraftLog>>().Result;
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }

        private void UploadSelectedJobData(string filePath, Guid aircraftId, string notes = "")
        {
            HttpResponseMessage uploadStatus = null;

            try
            {
                var fileName = Path.GetFileName(filePath);
                var ext = Path.GetExtension(filePath).ToLower();

                // create job package and job data object
                var jobPackage = new JobPackage { CompanyId = _user.CompanyId, UserId = _user.UserId };
                var jobDataModel = new JobDataModel();

                // check ext type
                if (ext.Equals(PMD_EXT))
                {
                    // load original data
                    var byteArray = File.ReadAllBytes(filePath);
                    jobDataModel = new JobDataModel { AircraftId = aircraftId, JobData = byteArray, JobName = fileName, Notes = notes };
                    jobPackage.JobDataList.Add(jobDataModel);

                    // check if accompanying data exist
                    if (File.Exists(filePath.ToLower().Replace(PMD_EXT, PMH_EXT)))
                    {
                        // load accompanying data
                        var stringData = File.ReadAllText(filePath.ToLower().Replace(PMD_EXT, PMH_EXT));
                        jobDataModel = new JobDataModel { AircraftId = aircraftId, JobData = stringData, JobName = fileName.ToLower().Replace(PMD_EXT, PMH_EXT) };
                        jobPackage.JobDataList.Add(jobDataModel);
                    }
                }
                else if (ext.Equals(PMH_EXT))
                {
                    // load orginal data 
                    var stringData = File.ReadAllText(filePath);
                    jobDataModel = new JobDataModel { AircraftId = aircraftId, JobData = stringData, JobName = fileName, Notes = notes };
                    jobPackage.JobDataList.Add(jobDataModel);

                    // check if accompanying data exist
                    if (File.Exists(filePath.ToLower().Replace(PMH_EXT, PMD_EXT)))
                    {
                        // load data
                        var byteArray = File.ReadAllBytes(filePath.ToLower().Replace(PMH_EXT, PMD_EXT));
                        jobDataModel = new JobDataModel { AircraftId = aircraftId, JobData = byteArray, JobName = fileName.ToLower().Replace(PMH_EXT, PMD_EXT) };
                        jobPackage.JobDataList.Add(jobDataModel);
                    }
                }
                else // handle regular job file
                {
                    var stringData = File.ReadAllText(filePath);
                    jobDataModel = new JobDataModel { AircraftId = aircraftId, JobData = stringData, JobName = fileName, Notes = notes };
                    jobPackage.JobDataList.Add(jobDataModel);
                }

                // POST Json
                var jsonData = JsonConvert.SerializeObject(jobPackage);
                uploadStatus = _httpClient.PostAsJsonAsync(_baseUrl + _uploadJobAPI, jsonData).Result;

                // display notification
                if (uploadStatus.StatusCode == System.Net.HttpStatusCode.OK) UploadJobSuccessful();
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }

        private void UploadMultipeJobData()
        {
            HttpResponseMessage uploadStatus = null;

            try
            {
                // load multiple jobs
                var jobFile = File.ReadAllText(@"C:\__1 SATLOC\Projects\SampleFiles\SampleJob1.job");
                var textFile = File.ReadAllText(@"C:\__1 SATLOC\Projects\SampleFiles\SampleJob3.PMH");
                var byteArray = File.ReadAllBytes(@"C:\__1 SATLOC\Projects\SampleFiles\SampleJob3.PMD");

                // instanciate job Package
                var jobPackage = new JobPackage { CompanyId = _user.CompanyId, UserId = _user.UserId };

                // instanciate job data model
                var jobDataModel = new JobDataModel { AircraftId = _selectAircraftId, JobData = byteArray, JobName = "SampleJob3.PMD" };
                // add to job package
                jobPackage.JobDataList.Add(jobDataModel);

                // instanciate another job data model
                jobDataModel = new JobDataModel { AircraftId = _selectAircraftId, JobData = textFile, JobName = "SampleJob3.PMH" };
                jobPackage.JobDataList.Add(jobDataModel);

                jobDataModel = new JobDataModel { AircraftId = _selectAircraftId, JobData = jobFile, JobName = "SampleJob1.job" };
                jobPackage.JobDataList.Add(jobDataModel);

                // POST Json
                var jsonData = JsonConvert.SerializeObject(jobPackage);
                uploadStatus = _httpClient.PostAsJsonAsync(_baseUrl + _uploadJobAPI, jsonData).Result;

                // display notification
                if (uploadStatus.StatusCode == System.Net.HttpStatusCode.OK) UploadJobSuccessful();
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }

        private void UploadJobSuccessful()
        {
            MessageBox.Show("Upload Job(s) completed successfully!");
        }

        private void DownloadLogSuccessful()
        {
            MessageBox.Show("Download Log(s) completed successfully!");
        }

        public void DownloadSelectedLogData()
        {
            try
            {
                // create uri with parameters
                var builder = new UriBuilder(_baseUrl + _getAircraftLogDataAPI);
                builder.Query = "userId=" + _user.UserId + "&logId=" + _selectedLogData.Id;

                // execute get
                var response = _httpClient.GetAsync(builder.Uri).Result;
                var aircraftLogData = response.Content.ReadAsAsync<AircraftLogData>().Result;

                // write file to 
                File.WriteAllBytes(Path.Combine(txtDownloadPath.Text, aircraftLogData.LogFileName), aircraftLogData.LogFile);

                DownloadLogSuccessful();
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }

        public void DownloadAllLogData()
        {
            try
            {
                // iterate thru log list
                foreach (var logData in _aircraftLogList)
                {
                    // create uri with parameters
                    var builder = new UriBuilder(_baseUrl + _getAircraftLogDataAPI);
                    builder.Query = "userId=" + _user.UserId + "&logId=" + logData.Id;

                    // execute get
                    var response = _httpClient.GetAsync(builder.Uri).Result;
                    var aircraftLogData = response.Content.ReadAsAsync<AircraftLogData>().Result;

                    // write file to 
                    File.WriteAllBytes(Path.Combine(txtDownloadPath.Text, aircraftLogData.LogFileName), aircraftLogData.LogFile);
                }

                DownloadLogSuccessful();
            }
            catch (Exception ex)
            {
                // Show exception
                MessageBox.Show(ex.ToString());
            }
        }


        private void DisplayAircraftList()
        {
            // populate Aircraft Combo
            lstAircraft.ValueMember = "Id";
            lstAircraft.DisplayMember = "TailNumber";
            lstAircraft.DataSource = _aircraftList;
        }

        private void DisplayAircraftLogs()
        {
            // reset
            lstLogList.DataSource = null;

            // populate Aircraft Combo
            lstLogList.ValueMember = "Id";
            lstLogList.DisplayMember = "LogFileName";
            lstLogList.DataSource = _aircraftLogList;
        }

        private static bool GetBooleanResponse(HttpResponseMessage response)
        {
            // return boolean result
            return response.IsSuccessStatusCode ? JsonConvert.DeserializeObject<bool>(response.Content.ReadAsStringAsync().Result) : false;
        }

        private void SelectJob()
        {
            if (openFileDialog.ShowDialog() == DialogResult.OK)
            {
                //Get the path of specified file
                _selectJobFile = openFileDialog.FileName;

                // set filename on textbox
                txtJobName.Text = openFileDialog.SafeFileName;

                // enable job upload
                btnUploadSelectedJob.Enabled = _selectAircraftId != Guid.Empty;
            }
        }

        #endregion
    }
}