using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Cloud.Models;

namespace Cloud.Controllers;

[Authorize]
[ApiController]
[Route("api/[controller]")]
public class DecksController : ControllerBase
{
    private readonly AppDbContext _context;

    public DecksController(AppDbContext context)
    {
        _context = context;
    }

    [HttpGet]
    public async Task<ActionResult<List<UserDeck>>> GetDecks()
    {
        try
        {
            return Ok(await _context.UserDecks.OrderByDescending(d => d.UpdatedAt).ToListAsync());
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[WARNING] Could not retrieve decks: {ex.Message}");
            return Ok(new List<UserDeck>());
        }
    }

    [HttpGet("{id:guid}")]
    public async Task<ActionResult<UserDeck>> GetDeck(Guid id)
    {
        try
        {
            var deck = await _context.UserDecks.FindAsync(id);
            if (deck == null) return NotFound();
            return Ok(deck);
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[WARNING] Could not retrieve deck: {ex.Message}");
            return StatusCode(500);
        }
    }

    [HttpPost]
    public async Task<ActionResult<UserDeck>> CreateDeck(UserDeck deck)
    {
        try
        {
            deck.Id = Guid.NewGuid();
            deck.UpdatedAt = DateTime.UtcNow;
            _context.UserDecks.Add(deck);
            await _context.SaveChangesAsync();
            return Ok(deck);
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[WARNING] Could not create deck: {ex.Message}");
            return StatusCode(500, "Failed to save deck.");
        }
    }

    [HttpPut("{id:guid}")]
    public async Task<ActionResult<UserDeck>> UpdateDeck(Guid id, UserDeck deck)
    {
        try
        {
            var existing = await _context.UserDecks.FindAsync(id);
            if (existing == null) return NotFound();

            existing.Name = deck.Name;
            existing.Cards = deck.Cards;
            existing.Divers = deck.Divers;
            existing.Notes = deck.Notes;
            existing.Season = deck.Season;
            existing.UpdatedAt = DateTime.UtcNow;

            await _context.SaveChangesAsync();
            return Ok(existing);
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[WARNING] Could not update deck: {ex.Message}");
            return StatusCode(500, "Failed to update deck.");
        }
    }

    [HttpDelete("{id:guid}")]
    public async Task<IActionResult> DeleteDeck(Guid id)
    {
        try
        {
            var deck = await _context.UserDecks.FindAsync(id);
            if (deck == null) return NotFound();
            _context.UserDecks.Remove(deck);
            await _context.SaveChangesAsync();
            return NoContent();
        }
        catch (Exception ex)
        {
            Console.WriteLine($"[WARNING] Could not delete deck: {ex.Message}");
            return StatusCode(500);
        }
    }
}