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using System;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using vnxbqy.UI;
 
public class MailModel : ManagerBase<MailModel>
{
    /// <summary>
    /// 邮件数据字典,存储所有邮件详情
    /// Key: 邮件GUID(唯一标识)
    /// Value: 邮件详细数据(MailData结构体)
    /// </summary>
    Dictionary<string, MailData> mailDataDict = new Dictionary<string, MailData>();
    public MailCategory nowMailCategory = MailCategory.Personal;
    public Redpoint parentRedpoint = new Redpoint(MainRedDot.MailRepoint);
    public Redpoint tabRedpoint0;
    public Redpoint tabRedpoint1;
    public event Action OnUpdateMailListEvent;// 更新邮件列表数据
    public event Action OnUpdateMailStateChangeEvent;// 更新邮件状态变更
 
    public readonly string dateFormat = "yyyy-MM-dd";
    public override void Init()
    {
        tabRedpoint0 = new Redpoint(MainRedDot.MailRepoint, GetTabRedpointId(MailCategory.Personal));
        tabRedpoint1 = new Redpoint(MainRedDot.MailRepoint, GetTabRedpointId(MailCategory.Global));
        DTC0102_tagCDBPlayer.beforePlayerDataInitializeEvent += OnBeforePlayerDataInitializeEvent;
    }
 
    public override void Release()
    {
        DTC0102_tagCDBPlayer.beforePlayerDataInitializeEvent -= OnBeforePlayerDataInitializeEvent;
    }
 
    public void OnBeforePlayerDataInitializeEvent()
    {
        mailDataDict.Clear();
    }
 
    public bool HasNoReadMail(MailCategory category)
    {
        var list = GetMailList(category);
        if (list.IsNullOrEmpty())
            return false;
 
        foreach (var guid in list)
        {
            if (mailDataDict.TryGetValue(guid, out var mailData) && mailData.MailState == 1)
                return true;
        }
        return false;
    }
 
    public int GetTabRedpointId(MailCategory type)
    {
        return MainRedDot.MailRepoint * 10 + (int)type;
    }
 
    public void UpdatePersonalRedPoint()
    {
        if (tabRedpoint0 == null)
            return;
        tabRedpoint0.state = RedPointState.None;
        if (HasNoReadMail(MailCategory.Personal))
        {
            tabRedpoint0.state = RedPointState.Simple;
        }
    }
 
    public void UpdateGlobalRedPoint()
    {
        if (tabRedpoint1 == null) return;
        tabRedpoint1.state = RedPointState.None;
        if (HasNoReadMail(MailCategory.Global))
        {
            tabRedpoint1.state = RedPointState.Simple;
        }
    }
 
    /// <summary>
    /// 更新邮件红点提示状态
    /// </summary>
    public void UpdateRedPoint()
    {
        UpdatePersonalRedPoint();
        UpdateGlobalRedPoint();
    }
 
    public bool TryGetMailData(string uuid, out MailData mailData)
    {
        return mailDataDict.TryGetValue(uuid, out mailData);
    }
 
    // // 邮件是否有效
    // public bool IsMailLimit(DateTime CreateDateTime, int limitDays)
    // {
    //     TimeSpan timeSpan = TimeUtility.ServerNow - CreateDateTime;
    //     double totalDays = timeSpan.TotalDays;
    //     return totalDays > limitDays;
    // }
 
    public List<string> GetMailList(MailCategory mailCategory)
    {
        var result = new List<string>();
        foreach (var kvp in mailDataDict)
        {
            if (kvp.Value.Category == mailCategory)
            {
                result.Add(kvp.Key);
            }
        }
        return result;
    }
 
    public List<string> GetSortMailScrList(MailCategory mailCategory)
    {
        List<string> resList = GetMailList(mailCategory);
        return resList.OrderByDescending(guid => mailDataDict[guid].CreateDateTime).ToList();
    }
 
    /// <summary>
    /// 更新邮件列表数据
    /// </summary>
    /// <param name="vNetData">从服务器接收的邮件列表数据包</param>
    public void UpdateMailList(HA362_tagMCMailList vNetData)
    {
        if (vNetData == null) return;
 
        // 更新邮件数据字典
        foreach (var mail in vNetData.MailList)
        {
            var category = vNetData.IsServerMail == 1 ? MailCategory.Global : MailCategory.Personal;
            var mailData = new MailData();
 
            mailData.Category = category;
            mailData.GUID = mail.GUID;
            mailData.Type = mail.Type;
            mailData.CreateTime = mail.CreateTime;
            mailData.CreateDateTime = Convert.ToDateTime(UIHelper.GetTime(mail.CreateTime));
            mailData.LimitDays = mail.LimitDays;
            mailData.Title = mail.Title;
            mailData.Text = mail.Text;
            mailData.MailState = mail.MailState;
 
            mailData.Items = mail.Items?.Select(i => new MailItemData
            {
                ItemID = i.ItemID,
                Count = i.Count,
                IsBind = i.IsBind,
                UserData = i.UserData
            }).ToList();
            mailDataDict[mail.GUID] = mailData;
        }
 
        UpdateRedPoint();
        OnUpdateMailListEvent?.Invoke();
    }
 
    /// <summary>
    /// 更新邮件状态变更
    /// </summary>
    /// <param name="vNetData">从服务器接收的邮件状态变更数据包</param>
    public void UpdateMailStateChange(HA363_tagMCMailStateChange vNetData)
    {
        if (vNetData == null || vNetData.MailList == null) return;
 
        foreach (var stateChange in vNetData.MailList)
        {
            if (mailDataDict.TryGetValue(stateChange.GUID, out var mailData))
            {
                if (stateChange.MailState == 4)
                {
                    mailDataDict.Remove(stateChange.GUID);
                    continue;
                }
                mailData.MailState = stateChange.MailState;
                mailDataDict[stateChange.GUID] = mailData;
            }
        }
 
        UpdateRedPoint();
        OnUpdateMailStateChangeEvent?.Invoke();
    }
 
 
    /// <summary>
    /// 阅读邮件
    /// </summary>
    /// <param name="GUID">邮件GUID</param>
    public void ReadMail(string GUID)
    {
        if (string.IsNullOrEmpty(GUID))
        {
            Debug.LogError("阅读邮件GUID不能为空");
            return;
        }
        SendRequestMail(GUID, 0);
    }
 
    /// <summary>
    /// 领取邮件
    /// </summary>
    /// <param name="GUID">邮件GUID,为空时批量领取所有邮件</param>
    public void ClaimMail(string GUID = null)
    {
        SendRequestMail(GUID, 1);
    }
 
    /// <summary>
    /// 删除邮件
    /// </summary>
    /// <param name="GUID">邮件GUID,为空时批量删除已领取或无物品的已读邮件</param>
    public void DeleteMail(string GUID = null)
    {
        SendRequestMail(GUID, 2);
    }
 
    /// <summary>
    /// 发送邮件请求到服务器
    /// </summary>
    /// <param name="GUID">邮件GUID</param>
    /// <param name="ReqType">请求类型 0-设置已读,1-领取邮件,2-删除邮件</param>
    public void SendRequestMail(string GUID, byte ReqType)
    {
        CA537_tagCMRequestMail pack = new CA537_tagCMRequestMail();
        pack.GUID = GUID;
        pack.ReqType = ReqType;
        GameNetSystem.Instance.SendInfo(pack);
    }
}
 
public enum MailCategory
{
    Personal = 0,  // 个人邮件
    Global = 1     // 全服邮件
}
 
public class MailItemData
{
    public uint ItemID;        //物品ID
    public uint Count;        //数量
    public byte IsBind;        //是否绑定
    public string UserData;        //自定义数据    
}
 
public class MailData
{
    public MailCategory Category;
    public string GUID;        //邮件GUID
    public byte Type;        //邮件类型,暂时默认0
    public string CreateTime;        //创建时间
    public DateTime CreateDateTime;
    public byte LimitDays;        //有效天数
    public string Title;        //标题
    public string Text;        //内容
    public byte MailState;        //邮件状态: 0-未知;1-未读;2-已读;3-已领;
    public List<MailItemData> Items;        //物品信息
}