using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Assignment3.Data;
using Assignment3.Models;
using System.Xml.Linq;

namespace Assignment3.Controllers
{
    [Route("api/[controller]")]
    [ApiController]
    public class PatientsController : ControllerBase
    {
        private readonly Assignment3Context _context;

        public PatientsController(Assignment3Context context)
        {
            _context = context;
        }

        // GET: api/Patients
        [HttpGet]
        public async Task<ActionResult<IEnumerable<Patient>>> GetPatient()
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            return await _context.Patient.ToListAsync();
        }

        // GET: api/Patients/5
        [HttpGet("{id}")]
        public async Task<ActionResult<Patient>> GetPatient(Guid id)
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            var patient = await _context.Patient.FindAsync(id);
            if (patient == null)
            {
                return NotFound();
            }

            return patient;
        }

        // PUT: api/Patients/5
        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
        [HttpPut("{id}")]
        public async Task<IActionResult> PutPatient(Guid id, Patient patient)
        {
            if (id != patient.Id)
            {
                return BadRequest();
            }

            _context.Entry(patient).State = EntityState.Modified;

            try
            {
                await _context.SaveChangesAsync();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!PatientExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return NoContent();
        }

        // POST: api/Patients
        // To protect from overposting attacks, see https://go.microsoft.com/fwlink/?linkid=2123754
        [HttpPost]
        public async Task<ActionResult<Patient>> PostPatient(Patient patient)
        {
            if (_context.Patient == null)
            {
                return Problem("Entity set 'Assignment3Context.Patient'  is null.");
            }
            _context.Patient.Add(patient);
            await _context.SaveChangesAsync();

            return CreatedAtAction("GetPatient", new { id = patient.Id }, patient);
        }

        // DELETE: api/Patients/5
        [HttpDelete("{id}")]
        public async Task<IActionResult> DeletePatient(Guid id)
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            var patient = await _context.Patient.FindAsync(id);
            if (patient == null)
            {
                return NotFound();
            }

            _context.Patient.Remove(patient);
            await _context.SaveChangesAsync();

            return NoContent();
        }


        [HttpGet("firstName={value}")]
        public async Task<ActionResult<Patient>> GetPatientFirstName(string firstName)
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            var patient = await _context.Patient.FirstOrDefaultAsync(i => i.FirstName == firstName);

            if (patient == null)
            {
                return NotFound();
            }

            return patient;
        }



        [HttpGet("lastName={value}")]
        public async Task<ActionResult<Patient>> GetPatientLastName(string lastname)
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            var patient = await _context.Patient.FirstOrDefaultAsync(i => i.LastName == lastname);

            if (patient == null)
            {
                return NotFound();
            }

            return patient;
        }








        [HttpGet("dateOfBirth={value}")]
        public async Task<ActionResult<Patient>> GetPatientdateOfBirth(DateTimeOffset date)
        {
            if (_context.Patient == null)
            {
                return NotFound();
            }
            var patient = await _context.Patient.FirstOrDefaultAsync(i => i.DateOfBirth == date);



            if (patient == null)
            {
                return NotFound();
            }

            return patient;
        }






        private bool PatientExists(Guid id)
        {
            return (_context.Patient?.Any(e => e.Id == id)).GetValueOrDefault();
        }


    }

}