Major rewrite

SoilMoistureAPI/Controllers/DeviceController.cs

@@ -0,0 +1,115 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
+using SoilMoistureAPI.Data;
+using SoilMoistureAPI.Models;
+using System.Threading.Tasks;
+
+namespace SoilMoistureAPI.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class DeviceController : ControllerBase
+    {
+        private readonly SoilMoistureContext _context;
+
+        public DeviceController(SoilMoistureContext context)
+        {
+            _context = context;
+        }
+
+        // POST: api/Device
+        [HttpPost]
+        public async Task<ActionResult<Device>> CreateDevice(Device device)
+        {
+            if (device == null || string.IsNullOrEmpty(device.DeviceId))
+            {
+                return BadRequest("Invalid device data.");
+            }
+
+            // Check if device already exists
+            var existingDevice = await _context.Devices.FindAsync(device.DeviceId);
+            if (existingDevice != null)
+            {
+                return Conflict("Device with the same DeviceId already exists.");
+            }
+
+            _context.Devices.Add(device);
+            await _context.SaveChangesAsync();
+
+            return CreatedAtAction(nameof(GetDevice), new { id = device.DeviceId }, device);
+        }
+
+        // GET: api/Device/{id}
+        [HttpGet("{id}")]
+        public async Task<ActionResult<Device>> GetDevice(string id)
+        {
+            var device = await _context.Devices
+                .Include(d => d.SoilMoistures)
+                .FirstOrDefaultAsync(d => d.DeviceId == id);
+
+            if (device == null)
+            {
+                return NotFound();
+            }
+
+            return device;
+        }
+
+        // PUT: api/Device/{id}/nickname
+        [HttpPut("{id}/nickname")]
+        public async Task<IActionResult> UpdateNickname(string id, [FromBody] string newNickname)
+        {
+            if (string.IsNullOrEmpty(newNickname))
+            {
+                return BadRequest("Nickname cannot be empty.");
+            }
+
+            var device = await _context.Devices.FindAsync(id);
+            if (device == null)
+            {
+                return NotFound("Device not found.");
+            }
+
+            device.Nickname = newNickname;
+            _context.Entry(device).State = EntityState.Modified;
+
+            try
+            {
+                await _context.SaveChangesAsync();
+                return NoContent(); // 204 No Content
+            }
+            catch (DbUpdateConcurrencyException)
+            {
+                if (!DeviceExists(id))
+                {
+                    return NotFound("Device not found.");
+                }
+                else
+                {
+                    throw;
+                }
+            }
+        }
+
+        // DELETE: api/Device/{id}
+        [HttpDelete("{id}")]
+        public async Task<IActionResult> DeleteDevice(string id)
+        {
+            var device = await _context.Devices.FindAsync(id);
+            if (device == null)
+            {
+                return NotFound("Device not found.");
+            }
+
+            _context.Devices.Remove(device);
+            await _context.SaveChangesAsync();
+
+            return NoContent(); // 204 No Content
+        }
+
+        private bool DeviceExists(string id)
+        {
+            return _context.Devices.Any(e => e.DeviceId == id);
+        }
+    }
+}