using Microsoft.AspNetCore.Mvc;
using GrossesMitainesAPI.Models;
using System.Linq;
using GrossesMitainesAPI.Data;
using Microsoft.Extensions.Logging;

namespace GrossesMitainesAPI.Controllers;

[ApiController, Route("api/[controller]")]
public class ProductController : Controller {
    private readonly ILogger<ProductController> _logger;
    private readonly InventoryContext _context;

    public ProductController(ILogger<ProductController> logger, InventoryContext context) {
        _logger = logger;
        _context = context;
    }

    [HttpGet(Name = "Product")]
    public Product Get(int id) {
        Product prod;
        try {
            prod = _context.Products.Where(x => x.Id == id).First();
        } catch (Exception e) {
            _logger.LogError(8, e.Message);
            prod = new Product();
        }
        return prod;
    }

    [HttpPost(Name = "Product")]
    public void Post(int id, string title, string category, string description, decimal? price, uint? quantity, bool? disc, string imagename) {
        Product prod = new() { 
            Title =  title,
            Category = category,
            Description = description,
            Price = price.HasValue? (decimal)price: 0.01M,
            Quantity = quantity.HasValue ? (uint)quantity : 0,
            isDiscontinued = disc.HasValue? (bool)disc: false,
            ImageName = imagename
        };
        try {
            _context.Products.Add(prod);
        } catch (Exception e) {
            _logger.LogError(8, e.Message);
        }
    }

    [HttpPut(Name = "Product")]
    public void Put(int id, string title, string category, string description, decimal? price, uint? quantity, bool? disc, string imagename) {
        try {
            Product prod = _context.Products.Where(x => x.Id == id).First();

            if (title != null || title != "")
                prod.Title = title;

            if (category != null || category != "")
                prod.Category = category;

            if (description != null || description != "")
                prod.Description = description;

            if (price.HasValue || price > 0)
                prod.Price = (decimal)price;

            if (quantity.HasValue)
                prod.Quantity = (uint)quantity;

            if (disc.HasValue)
                prod.isDiscontinued = (bool)disc;

            if (imagename != null || imagename != "")
                prod.ImageName = imagename;

            _context.Products.Update(prod);
        } catch (Exception e) {
            _logger.LogError(8, e.Message);
        }
    }

    [HttpPatch(Name = "Product")]
    public void Patch(int id, string title, string category, string description, decimal? price, uint? quantity, bool? disc, string imagename) {
        try {
            Product prod = _context.Products.Where(x => x.Id == id).First();

            if (title != null)
                prod.Title = title;
            else prod.Title = "";

            if (category != null)
                prod.Category = category;
            else prod.Category = "";

            if (description != null)
                prod.Description = description;
            else prod.Description = "";

            if (price.HasValue || price > 0)
                prod.Price = (decimal)price;
            else prod.Price = 0.01M;

            if (quantity.HasValue)
                prod.Quantity = (uint)quantity;
            else prod.Quantity = 0;

            if (disc.HasValue)
                prod.isDiscontinued = (bool)disc;
            else prod.isDiscontinued = false;

            if (imagename != null)
                prod.ImageName = imagename;
            else prod.ImageName = "";

            _context.Products.Update(prod);
        } catch (Exception e) {
            _logger.LogError(8, e.Message);
        }
    }
}