#region

using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using MySql.Data.MySqlClient;
using website.Models;
using website.Models.events;

#endregion

namespace website.Controllers {
	[ApiController]
	[Route("[controller]")]
	public class EventController : ControllerBase { // TODO add docs to methods

		[HttpGet("~/event/get")]
		public ActionResult<Event> get(int eventId) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events where eventId=@eventId", cnn);
			cmd.Parameters.AddWithValue("@eventId", eventId);
			MySqlDataReader rdr = cmd.ExecuteReader();

			Event evnt = null;
			while (rdr.Read())
				evnt = new Event {
					eventId = rdr.GetInt32("eventId"),
					location = rdr.GetString("location"),
					date = rdr.GetDateTime("date"),
					time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
					color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
					textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
					imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
					description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
				};

			cnn.Close();
			if (evnt == null)
				return StatusCode(204, null);
			return StatusCode(200, evnt);
		}


		[HttpGet("~/event/getAll")]
		public ActionResult<List<Event>> get() {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events", cnn);
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(new Event {
					eventId = rdr.GetInt32("eventId"),
					location = rdr.GetString("location"),
					date = rdr.GetDateTime("date"),
					time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
					color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
					textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
					imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
					description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
				});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}
		
		[HttpPost("~/admin/event/postCsv.csv")]
		public IActionResult postCsv(IFormFile file) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd;

			Stream stream = file.OpenReadStream();

			byte[] byteFile = new byte[stream.Length];
			stream.Read(byteFile);

			string result = Encoding.Default.GetString(byteFile);
			string[] results = result.Split('\n');

			for (uint i = 1; i < results.Length-1; i++) {
				string[] items = results[i].Split(',');
				cmd = new(
					"INSERT INTO san_antonio_senior_golf.events (location, date, time, color, textColor, imageUri, description) VALUES (@location, @date, @time, @color, @textColor, @imageUri, @description);",
					cnn);

				cmd.Parameters.AddWithValue("@location", items[0]);
				cmd.Parameters.AddWithValue("@date", items[1]);
				cmd.Parameters.AddWithValue("@time", items[2]);
				cmd.Parameters.AddWithValue("@color", items[3]);
				cmd.Parameters.AddWithValue("@textColor", items[4]);
				cmd.Parameters.AddWithValue("@imageUri", items[5]);
				cmd.Parameters.AddWithValue("@description", items[6]);

				cmd.ExecuteReader().Close();
			}
			
			return NoContent();
		}

		[HttpGet("~/event/getBetween")]
		public ActionResult<List<Event>> get(string start, string end) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events WHERE date BETWEEN @start AND @end;", cnn);
			cmd.Parameters.AddWithValue("@start", start);
			cmd.Parameters.AddWithValue("@end", end);
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(new Event {
					eventId = rdr.GetInt32("eventId"),
					location = rdr.GetString("location"),
					date = rdr.GetDateTime("date"),
					time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
					color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
					textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
					imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
					description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
				});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}

		[HttpGet("~/event/getYear")]
		public ActionResult<List<Event>> getYear() {
			MySqlConnection cnn = Utilities.getConnection();
			cnn.Open();
			MySqlCommand cmd = new("SELECT * FROM events WHERE date BETWEEN @start AND @end;", cnn);
			cmd.Parameters.AddWithValue("@start", DateTime.Now.AddYears(-1));
			cmd.Parameters.AddWithValue("@end", DateTime.Now.AddYears(1));
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(new Event {
					eventId = rdr.GetInt32("eventId"),
					location = rdr.GetString("location"),
					date = rdr.GetDateTime("date"),
					time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
					color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
					textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
					imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
					description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
				});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}

		[HttpGet("~/event/getTodays")]
		public ActionResult<List<Event>> getTodays() {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events WHERE date=curdate()", cnn);
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(new Event {
					eventId = rdr.GetInt32("eventId"),
					location = rdr.GetString("location"),
					date = rdr.GetDateTime("date"),
					time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
					color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
					textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
					imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
					description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
				});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}

		[HttpGet("~/event/getLocation")]
		public ActionResult<string> getLocation(int eventId) {
			ObjectResult result = get(eventId).Result as ObjectResult;
			return StatusCode((int)result.StatusCode, ((Event)result.Value).date);
		}

		[HttpGet("~/event/getDate")]
		public ActionResult<string> getDate(int eventId) {
			ObjectResult result = get(eventId).Result as ObjectResult;
			return StatusCode((int)result.StatusCode, ((Event)result.Value).date);
		}

		[HttpGet("~/event/getTime")]
		public ActionResult<string>? getTime(int eventId) {
			ObjectResult result = get(eventId).Result as ObjectResult;
			return StatusCode((int)result.StatusCode, ((Event)result.Value).date);
		}

		[HttpGet("~/event/getColor")]
		public ActionResult<string> getColor(int eventId) {
			ObjectResult result = get(eventId).Result as ObjectResult;
			return StatusCode((int)result.StatusCode, ((Event)result.Value).date);
		}

		[HttpGet("~/event/getDescription")]
		public ActionResult<string> getDescription(int eventId) {
			ObjectResult result = get(eventId).Result as ObjectResult;
			return StatusCode((int)result.StatusCode, ((Event)result.Value).date);
		}

		[HttpGet("~/event/getEventsAt")]
		public ActionResult<List<Event>> getEventsAt(string location) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events WHERE location=@location", cnn);
			cmd.Parameters.AddWithValue("@location", location);
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(
					new Event {
						eventId = rdr.GetInt32("eventId"),
						location = rdr.GetString("location"),
						date = rdr.GetDateTime("date"),
						time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
						color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
						textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
						imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
						description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
					});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}

		[HttpGet("~/event/getEventsOn")]
		public ActionResult<List<Event>> GetEventsOn(string date) {
			Regex regex = new("^[0-9]{4}/[0-9]{2}/[0-9]{2}$", RegexOptions.IgnoreCase);
			if (!regex.IsMatch(date)) return StatusCode(432, null);

			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531, null);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532, null);
			}

			MySqlCommand cmd = new("SELECT * FROM events WHERE date=@date", cnn);
			cmd.Parameters.AddWithValue("@date", date);
			MySqlDataReader rdr = cmd.ExecuteReader();
			List<Event> events = new();

			while (rdr.Read())
				events.Add(
					new Event {
						eventId = rdr.GetInt32("eventId"),
						location = rdr.GetString("location"),
						date = rdr.GetDateTime("date"),
						time = rdr.IsDBNull(3) ? null : rdr.GetTimeSpan("time"),
						color = rdr.IsDBNull(4) ? null : rdr.GetString("color"),
						textColor = rdr.IsDBNull(5) ? null : rdr.GetString("textColor"),
						imageUri = rdr.IsDBNull(6) ? null : rdr.GetString("imageUri"),
						description = rdr.IsDBNull(7) ? null : rdr.GetString("description")
					});

			cnn.Close();
			if (events.Count == 0)
				return StatusCode(204, null);
			return StatusCode(200, events);
		}

		[HttpPost("~/admin/event/create")]
		public ActionResult create([FromBody] PostEvent evnt) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new(
					"INSERT INTO san_antonio_senior_golf.events (location, date, time, color, textColor, imageUri, description) VALUES (@location, @date, @time, @color, @textColor, @imageUri, @description);"
					, cnn);
			cmd.Parameters.AddWithValue("@location", evnt.location);
			cmd.Parameters.AddWithValue("@date", evnt.date);
			cmd.Parameters.AddWithValue("@time", evnt.time);
			cmd.Parameters.AddWithValue("@color", evnt.color);
			cmd.Parameters.AddWithValue("@textColor", evnt.textColor);
			cmd.Parameters.AddWithValue("@imageUri", evnt.imageUri);
			cmd.Parameters.AddWithValue("@description", evnt.description);

			try {
				cmd.ExecuteNonQuery();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				cnn.Close();
				return StatusCode(435);
			}

			cnn.Close();
			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/location")]
		public ActionResult editLocation([FromBody] EditEventLocation editEventLocation) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.location = @location WHERE t.eventId = @eventId;",
					cnn);
			cmd.Parameters.AddWithValue("@location", editEventLocation.location);
			cmd.Parameters.AddWithValue("@eventId", editEventLocation.eventId);
			try {
				cmd.ExecuteNonQuery();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				cnn.Close();
				return StatusCode(435);
			}

			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/date")]
		public ActionResult editDate([FromBody] EditEventDate editEventDate) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.date = @date WHERE t.eventId = @eventId;", cnn);
			cmd.Parameters.AddWithValue("@date", editEventDate.date);
			cmd.Parameters.AddWithValue("@eventId", editEventDate.eventId);
			try {
				cmd.ExecuteNonQuery();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				cnn.Close();
				return StatusCode(435);
			}

			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/time")]
		public ActionResult editTime([FromBody] EditEventTime editEventTime) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.time = @time WHERE t.eventId = @eventId;", cnn);
			cmd.Parameters.AddWithValue("@time", editEventTime.time);
			cmd.Parameters.AddWithValue("@eventId", editEventTime.eventId);
			try {
				cmd.ExecuteNonQuery();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				cnn.Close();
				return StatusCode(435);
			}

			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/color")]
		public ActionResult editColor([FromBody] EditEventColor editEventColor) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.color = @color WHERE t.eventId=@eventId;", cnn);
			cmd.Parameters.AddWithValue("@color", editEventColor.color);
			cmd.Parameters.AddWithValue("@eventId", editEventColor.eventId);
			cmd.ExecuteNonQuery();

			cnn.Close();
			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/textColor")]
		public ActionResult editTextColor([FromBody] EditEventTextColor editEventTextColor) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.textColor = @textColor WHERE t.eventId=@eventId;",
					cnn);
			cmd.Parameters.AddWithValue("@textColor", editEventTextColor.textColor);
			cmd.Parameters.AddWithValue("@eventId", editEventTextColor.eventId);
			cmd.ExecuteNonQuery();

			cnn.Close();
			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/imageUri")]
		public ActionResult editImageUri([FromBody] EditEventImageUri editEventImageUri) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new("UPDATE san_antonio_senior_golf.events t SET t.imageUri = @imageUri WHERE t.eventId=@eventId;",
					cnn);
			cmd.Parameters.AddWithValue("@imageUri", editEventImageUri.imageUri);
			cmd.Parameters.AddWithValue("@eventId", editEventImageUri.eventId);
			cmd.ExecuteNonQuery();

			cnn.Close();
			return StatusCode(204);
		}

		[HttpPut("~/admin/event/edit/description")]
		public ActionResult editDescription([FromBody] EditEventDescription editEventDescription) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd =
				new(
					"UPDATE san_antonio_senior_golf.events t SET t.description = @description WHERE t.eventId=@eventId;",
					cnn);
			cmd.Parameters.AddWithValue("@description", editEventDescription.description);
			cmd.Parameters.AddWithValue("@eventId", editEventDescription.eventId);
			cmd.ExecuteNonQuery();

			cnn.Close();
			return StatusCode(204);
		}

		[HttpDelete("~/admin/event/delete")]
		public ActionResult delete(int eventId) {
			MySqlConnection cnn;
			try {
				cnn = Utilities.getConnection();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(531);
			}

			try {
				cnn.Open();
			}
			catch (MySqlException e) {
				Console.WriteLine(e);
				return StatusCode(532);
			}

			MySqlCommand cmd = new("DELETE FROM san_antonio_senior_golf.events WHERE eventId=@eventId;", cnn);
			cmd.Parameters.AddWithValue("@eventId", eventId);
			cmd.ExecuteNonQuery();

			cnn.Close();
			return StatusCode(204);
		}
	}
}