using Data.SeaHavenIndustries;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;

namespace Api.SeaHavenIndustries.Controllers
{
    [Authorize]
    [ApiController]
    [Route("api/[controller]")]
    public class DropdownOptionsController : Controller
    {
        private readonly ApplicationDbContext _db;

        public DropdownOptionsController(ApplicationDbContext db)
        {
            _db = db;
        }

        [HttpGet]
        public async Task<IActionResult> GetAll([FromQuery] string? category = null)
        {
            var query = _db.DropdownOptions.Where(d => d.IsActive);
            if (!string.IsNullOrWhiteSpace(category))
                query = query.Where(d => d.Category == category);

            var data = await query.OrderBy(d => d.Category).ThenBy(d => d.SortOrder).ThenBy(d => d.Value).ToListAsync();
            return Ok(data);
        }

        [HttpGet("ByCategory/{category}")]
        public async Task<IActionResult> GetByCategory(string category, [FromQuery] string? parent = null)
        {
            var query = _db.DropdownOptions.Where(d => d.IsActive && d.Category == category);
            if (!string.IsNullOrWhiteSpace(parent))
                query = query.Where(d => d.ParentValue == parent);

            var data = await query.OrderBy(d => d.SortOrder).ThenBy(d => d.Value).ToListAsync();
            return Ok(data);
        }

        [HttpPost]
        public async Task<IActionResult> Create([FromBody] DropdownOption model)
        {
            if (string.IsNullOrWhiteSpace(model.Category) || string.IsNullOrWhiteSpace(model.Value))
                return BadRequest(new { message = "Category and Value are required" });

            var existing = await _db.DropdownOptions
                .AnyAsync(d => d.Category == model.Category && d.Value == model.Value && d.ParentValue == model.ParentValue);
            if (existing)
                return BadRequest(new { message = "This option already exists" });

            model.Id = 0;
            model.IsActive = true;
            _db.DropdownOptions.Add(model);
            await _db.SaveChangesAsync();
            return Ok(model);
        }

        [HttpPut("{id}")]
        public async Task<IActionResult> Update(int id, [FromBody] DropdownOption model)
        {
            var item = await _db.DropdownOptions.FindAsync(id);
            if (item == null)
                return NotFound(new { message = "Option not found" });

            item.Value = model.Value;
            item.ParentValue = model.ParentValue;
            item.SortOrder = model.SortOrder;
            item.IsActive = model.IsActive;
            await _db.SaveChangesAsync();
            return Ok(item);
        }

        [HttpDelete("{id}")]
        public async Task<IActionResult> Delete(int id)
        {
            var item = await _db.DropdownOptions.FindAsync(id);
            if (item == null)
                return NotFound(new { message = "Option not found" });

            _db.DropdownOptions.Remove(item);
            await _db.SaveChangesAsync();
            return Ok(new { message = "Deleted" });
        }
    }
}