using SK.Framework;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;


/// <summary>
/// UI工具管理类，通用方法
/// </summary>
public class UIUtils : MonoSingleton<UIUtils>
{

    private List<PhaseObjectiveItem> phaseObjectiveItems = new List<PhaseObjectiveItem>();

    #region ScrollView部分

    /// <summary>
    /// 向滚动视图添加子项。
    /// </summary>
    /// <param name="item"></param>
    /// <param name="scrollViewContent"></param>
    public void AddItemToScrollView(RectTransform item, RectTransform scrollViewContent)
    {
        GameObject newItem = Instantiate(item.gameObject, scrollViewContent.transform);
        newItem.Activate();

        if (newItem.GetComponent<PhaseObjectiveItem>() != null)
        {
            phaseObjectiveItems.Add(newItem.GetComponent<PhaseObjectiveItem>());
            newItem.GetComponent<PhaseObjectiveItem>().deleteBtn.onClick.AddListener(() =>
            {
                phaseObjectiveItems.Remove(newItem.GetComponent<PhaseObjectiveItem>());
                RefreshAll();
                Destroy(newItem);
            });

        }


        AdjustContentLength(scrollViewContent);
    }

    /// <summary>
    /// 调整内容长度以适应子项数量和布局设置。
    /// 计算内容长度，以便在滚动视图中正确显示所有子项。
    /// </summary>
    /// <param name="contentRect"></param>
    public void AdjustContentLength(RectTransform contentRect)
    {
        GridLayoutGroup gridLayout = contentRect.GetComponent<GridLayoutGroup>();
        int childCount = contentRect.childCount;
        if (childCount == 0) return;

        Vector2 cellSize = gridLayout.cellSize;
        Vector2 spacing = gridLayout.spacing;
        GridLayoutGroup.Constraint constraint = gridLayout.constraint;
        int constraintCount = gridLayout.constraintCount;
        GridLayoutGroup.Axis startAxis = gridLayout.startAxis;

        int rows = 1;
        int columns = 1;

        // 根据Grid Layout Group设置计算行和列
        if (startAxis == GridLayoutGroup.Axis.Vertical) // 垂直排列
        {
            switch (constraint)
            {
                case GridLayoutGroup.Constraint.FixedColumnCount:
                    columns = constraintCount;
                    rows = Mathf.CeilToInt((float)childCount / columns);
                    break;
                case GridLayoutGroup.Constraint.FixedRowCount:
                    rows = constraintCount;
                    columns = Mathf.CeilToInt((float)childCount / rows);
                    break;
                case GridLayoutGroup.Constraint.Flexible: // Flexible模式
                    float contentWidth = contentRect.rect.width;
                    if (contentWidth > 0)
                    {
                        columns = Mathf.FloorToInt((contentWidth + spacing.x) / (cellSize.x + spacing.x));
                        if (columns < 1) columns = 1;
                        rows = Mathf.CeilToInt((float)childCount / columns);
                    }
                    else
                    {
                        columns = 1;
                        rows = childCount;
                    }
                    break;
            }
        }
        else // 水平排列
        {
            switch (constraint)
            {
                case GridLayoutGroup.Constraint.FixedColumnCount:
                    columns = constraintCount;
                    rows = Mathf.CeilToInt((float)childCount / columns);
                    break;
                case GridLayoutGroup.Constraint.FixedRowCount:
                    rows = constraintCount;
                    columns = Mathf.CeilToInt((float)childCount / rows);
                    break;
                case GridLayoutGroup.Constraint.Flexible: // Flexible模式
                    float contentHeight = contentRect.rect.height;
                    if (contentHeight > 0)
                    {
                        rows = Mathf.FloorToInt((contentHeight + spacing.y) / (cellSize.y + spacing.y));
                        if (rows < 1) rows = 1;
                        columns = Mathf.CeilToInt((float)childCount / rows);
                    }
                    else
                    {
                        rows = 1;
                        columns = childCount;
                    }
                    break;
            }
        }

        // 计算所需Content尺寸
        float requiredWidth = columns * cellSize.x + Mathf.Max(0, columns - 1) * spacing.x;
        float requiredHeight = rows * cellSize.y + Mathf.Max(0, rows - 1) * spacing.y;

        // 更新Content大小
        contentRect.sizeDelta = new Vector2(requiredWidth, requiredHeight);
    }

    #endregion

    #region InputField部分

    /// <summary>
    /// 检查输入框
    /// </summary>
    /// <param name="inputField"></param>
    public bool IsInputCorrect(InputField inputField)
    {
        if (string.IsNullOrEmpty(inputField.text) || string.IsNullOrWhiteSpace(inputField.text))
        {
            //ShowWarming(inputField.transform.GetChild(0).GetComponent<Text>().text);
            return false;
        }
        return true;
    }

    #endregion

    public GameObject particalObj;

    public void SetParticalActive(bool isActive)
    {
        particalObj.SetActive(isActive);
    }

    private void RefreshAll()
    {
        StartCoroutine(LateRefresh());
    }

    private IEnumerator LateRefresh()
    {
        yield return new WaitForEndOfFrame();
        for (int i = 0; i < phaseObjectiveItems.Count; i++)
        {
            phaseObjectiveItems[i].RefreshWhileDelete();
        }
    }

    /// <summary>
    /// UUid
    /// </summary>
    private string uuid;
    public string GetUuid() { return uuid; }

    /// <summary>
    /// 项目名称
    /// </summary>
    public string ProjectName
    { get; set; }

    /// <summary>
    /// 项目服务对象
    /// </summary>
    public string ProjectServiceTarget
    { get; set; }

    /// <summary>
    /// 项目目标
    /// </summary>
    public float ProjectTarget
    { get; set; }

    /// <summary>
    /// 项目周期
    /// </summary>
    public string ProjectPeriod
    { get; set; }

    protected override void Initialize()
    {
        uuid = System.Guid.NewGuid().ToString();

        phaseObjectiveItems.Clear();
    }
}