using System.Collections.Generic;
using System.Linq;
using Cysharp.Threading.Tasks;
using UnityEngine;

public class GuildAtkDefBatChangeMemberWin : UIBase
{
    [SerializeField] ScrollerController scroller;

    private static HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem s_SourceMember;

    private HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem m_SourceMember;
    private List<HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem> m_FilteredMembers;

    public static void Open(HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem sourceMember)
    {
        s_SourceMember = sourceMember;
        UIManager.Instance.OpenWindow<GuildAtkDefBatChangeMemberWin>();
    }

    protected override void InitComponent()
    {
        base.InitComponent();
    }

    protected override void OnPreOpen()
    {
        base.OnPreOpen();
        scroller.OnRefreshCell += OnRefreshCell;
        m_SourceMember = s_SourceMember;
        if (m_SourceMember == null)
        {
            CloseWindow();
            return;
        }

        // 1. 获取所有己方参战成员
        var allMembers = GuildAtkDefBatManager.Instance.MyFamilyMembers.Values.ToList();

        // 2. 排除被替换的成员
        m_FilteredMembers = allMembers.Where(m => m.PlayerID != m_SourceMember.PlayerID).ToList();

        // 3. 排序：防守成员靠前（DefType 升序 -> PosNum 升序 -> PlayerID 升序），非防守成员靠后（PlayerID 升序）
        m_FilteredMembers.Sort((a, b) =>
        {
            bool aIsDef = a.DefType != 0;
            bool bIsDef = b.DefType != 0;
            if (aIsDef != bIsDef)
                return aIsDef ? -1 : 1;

            if (aIsDef && bIsDef)
            {
                int defTypeCompare = a.DefType.CompareTo(b.DefType);
                if (defTypeCompare != 0)
                    return defTypeCompare;
                int posCompare = a.PosNum.CompareTo(b.PosNum);
                if (posCompare != 0)
                    return posCompare;
            }
            return a.PlayerID.CompareTo(b.PlayerID);
        });

        // 4. 填充 Scroller
        RefreshScroller();
    }

    private void RefreshScroller()
    {
        scroller.Refresh();
        for (int i = 0; i < m_FilteredMembers.Count; i++)
        {
            scroller.AddCell(ScrollerDataType.Header, i);
        }
        scroller.Restart();
    }

    private void OnRefreshCell(ScrollerDataType type, CellView cell)
    {
        var changeCell = cell as GuildAtkDefBatChangeMemberCell;
        if (changeCell == null) return;

        int index = cell.index;
        if (index < 0 || index >= m_FilteredMembers.Count) return;

        var mem = m_FilteredMembers[index];
        changeCell.Display(mem, OnChangeButtonClick);
    }

    private void OnChangeButtonClick(HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem selectedMem)
    {
        bool isDefender = selectedMem.DefType != 0;

        if (isDefender)
        {
            // 选中的是防守成员：弹出互换确认框
            string msg = string.Format(
                Language.Get("GuildAtkDefBat45"),
                m_SourceMember.Name,
                selectedMem.Name);
            ConfirmCancel.ShowPopConfirm(Language.Get("Mail101"), msg, (isOk) =>
            {
                if (isOk)
                {
                    DoChangeMember(selectedMem);
                }
            });
        }
        else
        {
            // 选中的不是防守成员：直接执行更换
            DoChangeMember(selectedMem);
        }
    }

    private void DoChangeMember(HA525_tagSCFamilyAtkDefBatInfo.tagSCFamilyAtkDefBatMem selectedMem)
    {
        GuildAtkDefBatManager.Instance.SendChangeBatMember(m_SourceMember.PlayerID, selectedMem.PlayerID);
        SysNotifyMgr.Instance.ShowTip("GuildAtkDefBat3");
        CloseWindow();
    }

    protected override void OnPreClose()
    {
        base.OnPreClose();
        scroller.OnRefreshCell -= OnRefreshCell;
        if (ReferenceEquals(s_SourceMember, m_SourceMember))
        {
            s_SourceMember = null;
        }
    }
}