using System.Collections.Generic;

namespace DDD
{
    public static class FoodDataExtensions
    {
        public static List<IngredientEntry> GetIngredients(this FoodData data)
        {
            return ExtractIngredients(
                data.IngredientKey1, data.IngredientAmount1,
                data.IngredientKey2, data.IngredientAmount2,
                data.IngredientKey3, data.IngredientAmount3,
                data.IngredientKey4, data.IngredientAmount4
            );
        }

        private static List<IngredientEntry> ExtractIngredients(params string[] values)
        {
            var list = new List<IngredientEntry>();

            for (int i = 0; i < values.Length; i += 2)
            {
                var key = values[i];
                var amountStr = values[i + 1];
                if (string.IsNullOrEmpty(key) || string.IsNullOrEmpty(amountStr)) continue;

                if (int.TryParse(amountStr, out int amount))
                {
                    list.Add(new IngredientEntry
                    {
                        IngredientId = key,
                        Amount = amount
                    });
                }
            }

            return list;
        }
        
        public static int GetCraftableCount(this FoodData data)
        {
            var ingredients = data.GetIngredients();
            if (ingredients.Count == 0) return 0;

            int minCraftable = int.MaxValue;

            foreach (var ingredient in ingredients)
            {
                int owned = InventoryManager.Instance.GetItemCount(ingredient.IngredientId);
                int craftable = owned / ingredient.Amount;

                if (craftable < minCraftable)
                    minCraftable = craftable;
            }

            return minCraftable;
        }
    }
}