PuppyClient/Assets/Resources/Shopping/ShoppingController.cs

using Newtonsoft.Json;
using System;
using System.Collections;
using System.Collections.Generic;
using Unity.VisualScripting;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.SocialPlatforms.Impl;
using UnityEngine.UIElements;

/* 这个controller 是用于控制 Shopping UI菜单的
 */

public class ShoppingController : MonoBehaviour
{
    // Start is called before the first frame update
    // 主页面元素
    private Button foodButton, toyButton, otherButton, backButton;
    private Label coinQty;
    private List<ItemInShop> shoppingItems = new();
    private VisualElement itemListView;

    //弹窗元素
    private Button yesButton, noButton;
    private Label msgBody;
    private VisualElement msgRoot, msgField;
    private TextField qtyField;
    int purchaseQty = 1; // 购买数量，默认1个    

    // 选中的产品
    private string selectedItemId, selectedItemDesc, selectedItemPrice;

    void OnEnable()
    {
        // 基层元素获取
        var root = GetComponent<UIDocument>().rootVisualElement;
        var mainManu = root.Q<VisualElement>("mainManu");
        itemListView = root.Q<VisualElement>("itemListView");
        foodButton = mainManu.Q<Button>("food");
        foodButton.clicked += () => TabSwitch(foodButton);
        toyButton = mainManu.Q<Button>("toy");
        toyButton.clicked += () => TabSwitch(toyButton);
        otherButton = mainManu.Q<Button>("other");
        otherButton.clicked += () => TabSwitch(otherButton);
        var coinArea = root.Q<VisualElement>("coinArea");
        coinQty = coinArea.Q<Label>("coinQty");
        backButton = root.Q<Button>("back");

        // 绑定事件
        backButton.clicked += BackBtnClick;

        // 弹窗元素获取
        msgRoot = root.Q<VisualElement>("msgRoot");
        msgField = msgRoot.Q<VisualElement>("msgField");
        msgBody = msgField.Q<Label>("msgBody");
        yesButton = msgField.Q<Button>("msgYes");
        noButton = msgField.Q<Button>("msgNo");
        qtyField = msgField.Q<TextField>("qtyField");
        noButton.clicked += MsgNoClick;
        yesButton.clicked += MsgYesClick;
        qtyField.RegisterValueChangedCallback(OnQtyFieldValueChanged);

        //初始化设定
        LanguageSetting();
        DataLoading();
        GetItemList("food");
        foodButton.transform.scale = new Vector3(1.2f, 1.2f);
        InstallItems("food");

    }

    private void OnDisable()
    {
        shoppingItems.Clear();       // 因为启动时候调用OnEable数据会被重复加载      
    }

    // Update is called once per frame
    //void Update()
    //{

    //}

    //菜单语言设定
    void LanguageSetting()
    {
        // 设置 shopping UI界面里面label和按键的语言显示
        string textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "food", EnviromentSetting.languageCode });
        foodButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "toy", EnviromentSetting.languageCode });
        toyButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "other", EnviromentSetting.languageCode });
        otherButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "back", EnviromentSetting.languageCode });
        backButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "yes", EnviromentSetting.languageCode });
        yesButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "button", "no", EnviromentSetting.languageCode });
        noButton.text = textValue;
        textValue = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "message_box", "qty", EnviromentSetting.languageCode });
        qtyField.label = textValue;
    }

    /*获取所有产品列表，切换商品分类之后，需要重新读取和加载
     */
    void GetItemList(string type)
    {
        // 按照类别获取shopping items
        shoppingItems.Clear();
        string itemRawData = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "item", type});
        Dictionary<string, object> itemDict = JsonConvert.DeserializeObject<Dictionary<string, object>>(itemRawData);
        foreach (string _item in itemDict.Keys)
        {
            var itemDetail = JsonConvert.DeserializeObject<Dictionary<string, object>>(itemDict[_item].ToString());
            string price = itemDetail["price"].ToString();
            string picture = itemDetail["picture"].ToString();
            var desc = JsonConvert.DeserializeObject<Dictionary<string, object>>(itemDetail["description"].ToString());
            string description = desc[EnviromentSetting.languageCode].ToString();

            // 检测toy是否达到最大可以拥有的数量，如果达到就不再添加
            if (type == "toy")
            {
                if(!UserProperty.toy.TryGetValue(_item, out int qty))
                {
                    // 如果用户没有这个道具，就商品里面添加这个道具
                    
                    ItemInShop SearchedItem = new(_item, description, price, picture);
                    shoppingItems.Add(SearchedItem);
                }
                else
                {
                    // 如果用户有这个，并且拥有数量小于最大值，就商品里面添加这个道具
                    if (qty < int.Parse(itemDetail["max qty"].ToString()))
                    {
                        ItemInShop SearchedItem = new(_item, description, price, picture);
                        shoppingItems.Add(SearchedItem);
                    }
                }
            }

            // 检测food是否达到最大可以拥有的数量，如果达到就不再添加
            if (type == "food")
            {
                if (!UserProperty.food.TryGetValue(_item, out int qty))
                {
                    // 如果用户没有这个道具，就商品里面添加这个道具

                    ItemInShop SearchedItem = new(_item, description, price, picture);
                    shoppingItems.Add(SearchedItem);
                }
                else
                {
                    // 如果用户有这个，并且拥有数量小于最大值，就商品里面添加这个道具
                    if (qty < int.Parse(itemDetail["max qty"].ToString()))
                    {
                        ItemInShop SearchedItem = new(_item, description, price, picture);
                        shoppingItems.Add(SearchedItem);
                    }
                }
            }

            // 检测other是否达到最大可以拥有的数量，如果达到就不再添加
            if (type == "other")
            {
                if (!UserProperty.other.TryGetValue(_item, out int qty))
                {
                    // 如果用户没有这个道具，就商品里面添加这个道具

                    ItemInShop SearchedItem = new(_item, description, price, picture);
                    shoppingItems.Add(SearchedItem);
                }
                else
                {
                    // 如果用户有这个，并且拥有数量小于最大值，就商品里面添加这个道具
                    if (qty < int.Parse(itemDetail["max qty"].ToString()))
                    {
                        ItemInShop SearchedItem = new(_item, description, price, picture);
                        shoppingItems.Add(SearchedItem);
                    }
                }
            }
        }
    }

    // 将items装载到菜单中，切换商品分类之后，需要重新读取和加载
    void InstallItems(string type)
    {
        var root = GetComponent<UIDocument>().rootVisualElement;
        itemListView.Clear();
        VisualTreeAsset itemResource = Resources.Load<VisualTreeAsset>("Shopping/Item");
        List<ItemInShop> items = new();
        foreach(var item in shoppingItems)
        {
            var itemFrame = new VisualElement();
            itemFrame = itemResource.CloneTree();
            var description = itemFrame.Q<Label>("description");
            description.text = item.description;
            var price = itemFrame.Q<Label>("price");
            price.text = "$ "+item.price;
            var texture = Resources.Load<Texture2D>(item.picture);
            var picture = itemFrame.Q<VisualElement>("picture");
            picture.style.backgroundImage = new StyleBackground(texture);
            itemFrame.RegisterCallback<ClickEvent>(e => ItemClick(e, item.id, item.description, item.price));

            itemListView.Add(itemFrame);
        }
    }

    // 点击商品后跳出确认窗口
    void ItemClick(ClickEvent clickEvent, string itemId, string description, string price)
    {
        selectedItemId = itemId;
        selectedItemDesc = description;
        selectedItemPrice = price;
        msgBody.text = description;
        msgRoot.visible = true;
        qtyField.value = "1"; // 重置数量输入框
        purchaseQty = 1; // 重置购买数量
    }

    // 数据读取
    void DataLoading()
    {
        // 游戏金币数量读取
        coinQty.text = UserProperty.coin.ToString();
    }
    
    void TabSwitch(Button btn)
    {
        itemListView.style.backgroundColor = btn.resolvedStyle.backgroundColor;
        foodButton.transform.scale = new Vector3(1f, 1f, 1);
        toyButton.transform.scale = new Vector3(1f, 1f, 1);
        otherButton.transform.scale = new Vector3(1f, 1f, 1);
        btn.transform.scale = new Vector3(1.2f, 1.2f, 1);
        itemListView.Clear();

        HomeSoundEffectController.Instance.PlaySoundEffect(0);

        // 这里btn.name必须和json里面商品类别完全匹配
        GetItemList(btn.name);
        InstallItems(btn.name);

        
    }

    // msg no button 点击
    void MsgNoClick()
    {
        msgRoot.visible = false;
    }
    // msg yes button 点击
    void MsgYesClick()
    {     
        msgRoot.visible = false;
        // 检测用户金币是否足够
        if (UserProperty.coin > int.Parse(selectedItemPrice)*purchaseQty)
        {
            PurchaseItemRequest(selectedItemId);
        }
        else
        {
            string msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "message", "not_enough_coin", EnviromentSetting.languageCode });
            MessageBoxController.ShowMessage(msg);
        }
    }

    void BackBtnClick()
    {
        HomeSoundEffectController.Instance.PlaySoundEffect(2);

        var uiPlaceholder = GameObject.Find("UI Placeholder");
        if (uiPlaceholder != null)
        {
            var shoppingUI = uiPlaceholder.transform.Find("ShoppingUI").gameObject;
            var vamUI = uiPlaceholder.transform.Find("VoiceAndMenu").gameObject;
            shoppingUI.SetActive(false);
            vamUI.SetActive(true);
        }
    }

    // 购物request
    void PurchaseItemRequest(string itemId)
    {
        Debug.Log("Purchase item request");

        string url = "/api/item/purchase/";
        WWWForm form = new();
        form.AddField("user_id", UserProperty.userId);
        form.AddField("item_id", itemId);
        form.AddField("qty", purchaseQty);
        StartCoroutine(WebController.PostRequest(url, form, callback: PurchaseItemCallback));
    }

    void PurchaseItemCallback(string json)
    {
        var data = JsonConvert.DeserializeObject<Dictionary<string, object>>(json);
        if (data != null && data["status"].ToString() == "success")
        {
            HomeSoundEffectController.Instance.PlaySoundEffect(3);

            // 重新写入用户数据
            string userInfo = data["user_info"].ToString();
            UserProperty.FreshUserInfo(userInfo);

            // TODO 然后重新写入道具数据
            string props = data["props"].ToString();
            UserProperty.FreshUserItems(props);

            // 弹出窗户提示购买成功
            string msg = GameTool.GetValueAtPath(EnviromentSetting.languageData, new string[] { "shoppingUI", "message", "purchase_success", EnviromentSetting.languageCode });
            msg = msg.Replace("<<item_name>>", selectedItemDesc);
            MessageBoxController.ShowMessage(msg, BackBtnClick);
        }
        else
        {
            Debug.Log(data["message"]);
        }
    }

    private void OnQtyFieldValueChanged(ChangeEvent<string> evt)
    {
        // 尝试将输入内容转换为整数
        if (int.TryParse(evt.newValue, out int value))
        {
            // 检查是否在 1 到 999 的范围内
            if (value < 1)
            {
                qtyField.value = "1"; // 如果小于 1，自动修正为 1
            }
            else if (value > 99)
            {
                qtyField.value = "99"; // 如果大于 999，自动修正为 999
            }
            yesButton.SetEnabled(true); // 启用确认按钮
            purchaseQty = value; // 更新购买数量
        }
        else
        {
            // 如果输入不是有效的整数，清空或提示用户
            qtyField.value = ""; // 清空输入
            yesButton.SetEnabled(false); // 禁用确认按钮
            Debug.Log("请输入有效的整数！");
        }
    }
}


public class ItemInShop
{
    public string id;
    public string description;
    public string picture;
    public string price;

    public ItemInShop(string id, string desc, string price, string picture) { 
        this.id = id;
        this.description = desc;
        this.price = price;
        this.picture = picture;
    }
}