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// Copyright © Pixel Crushers. All rights reserved.

using UnityEngine;
using Devdog.General;
using Devdog.InventoryPro;

namespace PixelCrushers.QuestMachine
{

    /// <summary>
    /// Adds or removes items.
    /// </summary>
    public class InventoryProItemQuestAction : QuestAction
    {

        #region Serialized Fields

        [Tooltip("Character collection name (e.g., 'Character') of player whose stat to set. Leave blank for default player.")]
        [SerializeField]
        private StringField m_player = new StringField();

        [SerializeField]
        private StringField m_itemName = new StringField();

        [Tooltip("Set an absolute amount or modify the current amount?")]
        [SerializeField]
        private SetCounterValueQuestAction.Operation m_operation;

        [Tooltip("New amount.")]
        [SerializeField]
        private QuestNumber m_amount = new QuestNumber(1);

        #endregion

        #region Public Properties

        private StringField player
        {
            get { return m_player; }
            set { m_player = value; }
        }

        public StringField itemName
        {
            get { return m_itemName; }
            set { m_itemName = value; }
        }

        public SetCounterValueQuestAction.Operation operation
        {
            get { return m_operation; }
            set { m_operation = value; }
        }

        public QuestNumber amount
        {
            get { return m_amount; }
            set { m_amount = value; }
        }

        #endregion

        public override string GetEditorName()
        {
            if (StringField.IsNullOrEmpty(itemName)) return "Inventory Pro Item Quest Action";
            return "Inventory Pro " + itemName + " " + operation + " " + amount.GetEditorName(quest);
        }

        public override void Execute()
        {
            base.Execute();
            var operationValue = amount.GetValue(quest);
            var itemNameValue = StringField.GetStringValue(itemName);
            if (QuestMachine.debug) Debug.Log("Quest Machine: InventoryProItemQuestAction: " + itemName + " " + operation + " " + operationValue + ".", quest);
            switch (m_operation)
            {
                case SetCounterValueQuestAction.Operation.ModifyByValue:
                    AddRemoveAmount(itemNameValue, operationValue);
                    break;
                case SetCounterValueQuestAction.Operation.SetToValue:
                    SetAmount(itemNameValue, operationValue);
                    break;
                case SetCounterValueQuestAction.Operation.Randomize:
                    SetAmount(itemNameValue, Random.Range(0, operationValue + 1));
                    break;
            }
        }

        private void AddRemoveAmount(string itemNameValue, int operationValue)
        {
            if (operationValue < 0)
            {
                InventoryProUtility.RemoveItem(itemNameValue, -operationValue);
            }
            else
            {
                InventoryProUtility.AddItem(itemNameValue, operationValue);
            }
        }

        private void SetAmount(string itemNameValue, int operationValue)
        {
            var currentAmount = InventoryProUtility.GetItemCount(itemNameValue);
            AddRemoveAmount(itemNameValue, operationValue - (int)currentAmount);
        }
    }

}