MotdManager.cs

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using System.Globalization;
using System.Text.Json;
using System.Xml.Linq;
using Engine;
using Game.IContentReader;
using XmlUtilities;
 
namespace Game {
    public static class MotdManager {
        public class Message {
            public List<Line> Lines = [];
        }
 
        public class Line {
            public float Time;
 
            public XElement Node;
 
            public string Text;
        }
 
        public class Bulletin {
            public string Title = string.Empty;
 
            public string EnTitle = string.Empty;
 
            public string Time = string.Empty;
 
            public string Content = string.Empty;
 
            public string EnContent = string.Empty;
        }
 
        public class FilterMod {
            public string Name = string.Empty;
 
            public string PackageName = string.Empty;
 
            public string Version = string.Empty;
 
            public string FilterAPIVersion = string.Empty;
 
            public string Explanation = string.Empty;
        }
 
        public static Bulletin m_bulletin;
 
        public static bool CanShowBulletin;
 
        public static bool CanDownloadMotd = true;
 
        public static List<FilterMod> FilterModAll = [];
 
        public static Message m_message;
 
        public static JsonDocument UpdateResult;
 
        public static bool m_isAdmin;
 
        public static Message MessageOfTheDay {
            get => m_message;
            set {
                m_message = value;
                MessageOfTheDayUpdated?.Invoke();
            }
        }
 
        public static event Action MessageOfTheDayUpdated;
 
        public static void ForceRedownload() {
            SettingsManager.MotdLastUpdateTime = DateTime.MinValue;
        }
 
        public static void Initialize() {
            if (VersionsManager.Version != VersionsManager.LastLaunchedVersion) {
                ForceRedownload();
            }
        }
 
        public static void UpdateVersion() {
            string url = string.Format(
                SettingsManager.MotdUpdateCheckUrl,
                VersionsManager.SerializationVersion,
                VersionsManager.PlatformString,
                ModsManager.APIVersionString,
                LanguageControl.LName()
            );
            WebManager.Get(
                url,
                null,
                null,
                new CancellableProgress(),
                data => { UpdateResult = JsonDocument.Parse(data, JsonDocumentReader.DefaultJsonOptions); },
                ex => { Log.Warning($"Failed processing Update check. Reason: {ex.Message}"); }
            );
        }
 
        public static void DownloadMotd() {
            string url = GetMotdUrl();
            WebManager.Get(
                url,
                null,
                null,
                null,
                delegate(byte[] result) {
                    try {
                        string motdLastDownloadedData = UnpackMotd(result);
                        MessageOfTheDay = null;
                        SettingsManager.MotdLastDownloadedData = motdLastDownloadedData;
                        Log.Information("Downloaded MOTD");
                    }
                    catch (Exception ex) {
                        Log.Warning($"Failed processing MOTD string. Reason: {ex.Message}");
                    }
                },
                delegate(Exception error) { Log.Warning($"Failed downloading MOTD. Reason: {error.Message}"); }
            );
        }
 
        public static void Update() {
            //if (Time.PeriodicEvent(1.0, 0.0) && ModsManager.ConfigLoaded)
            //{
            //var t = TimeSpan.FromHours(SettingsManager.MotdUpdatePeriodHours);
            //DateTime now = DateTime.Now;
            //if (now >= SettingsManager.MotdLastUpdateTime + t)
            //{
            //    SettingsManager.MotdLastUpdateTime = now;
            //    DownloadMotd();
            //    UpdateVersion();
            //}
            //}
#if DEBUG
            CanDownloadMotd = false;
#endif
            if (CanDownloadMotd) {
                DownloadMotd();
                CommunityContentManager.IsAdmin(new CancellableProgress(), delegate(bool isAdmin) { m_isAdmin = isAdmin; }, delegate { });
                CanDownloadMotd = false;
            }
            if (MessageOfTheDay == null
                && !string.IsNullOrEmpty(SettingsManager.MotdLastDownloadedData)) {
                MessageOfTheDay = ParseMotd(SettingsManager.MotdLastDownloadedData);
                if (MessageOfTheDay == null) {
                    SettingsManager.MotdLastDownloadedData = string.Empty;
                }
                if (m_bulletin != null
                    && SettingsManager.BulletinTime != m_bulletin.Time) {
                    if (IsCNLanguageType()
                        && m_bulletin.Title.ToLower() != "null") {
                        CanShowBulletin = true;
                    }
                    else if (!IsCNLanguageType()
                        && m_bulletin.EnTitle.ToLower() != "null") {
                        CanShowBulletin = true;
                    }
                }
            }
        }
 
        public static string UnpackMotd(byte[] data) {
            using (MemoryStream stream = new(data)) {
                return new StreamReader(stream).ReadToEnd();
            }
            //throw new InvalidOperationException("\"motd.xml\" file not found in Motd zip archive.");
        }
 
        public static Message ParseMotd(string dataString) {
            try {
                int num = dataString.IndexOf("<Motd");
                if (num < 0) {
                    throw new InvalidOperationException("Invalid MOTD data string.");
                }
                int num2 = dataString.IndexOf("</Motd>");
                if (num2 >= 0
                    && num2 > num) {
                    num2 += 7;
                }
                XElement xElement = XmlUtils.LoadXmlFromString(dataString.Substring(num, num2 - num), true);
                SettingsManager.MotdUpdatePeriodHours = XmlUtils.GetAttributeValue(xElement, "UpdatePeriodHours", 24);
                SettingsManager.MotdUpdateUrl = XmlUtils.GetAttributeValue(xElement, "UpdateUrl", SettingsManager.MotdUpdateUrl);
                Message message = new();
                foreach (XElement item2 in xElement.Elements()) {
                    if (Widget.IsNodeIncludedOnCurrentPlatform(item2)) {
                        Line item = new() {
                            Time = XmlUtils.GetAttributeValue<float>(item2, "Time"), Node = item2.Elements().FirstOrDefault(), Text = item2.Value
                        };
                        message.Lines.Add(item);
                    }
                }
                LoadBulletin(dataString);
                LoadFilterMods(dataString);
                return message;
            }
            catch (Exception ex) {
                Log.Warning($"Failed extracting MOTD string. Reason: {ex.Message}");
            }
            return null;
        }
 
        public static void LoadBulletin(string dataString) {
            int num = dataString.IndexOf("<Motd2");
            if (num < 0) {
                throw new InvalidOperationException("Invalid MOTD2 data string.");
            }
            int num2 = dataString.IndexOf("</Motd2>");
            if (num2 >= 0
                && num2 > num) {
                num2 += 8;
            }
            XElement xElement = XmlUtils.LoadXmlFromString(dataString.Substring(num, num2 - num), true);
            string languageType = !ModsManager.Configs.TryGetValue("Language", out string config) ? "zh-CN" : config;
            foreach (XElement item in xElement.Elements()) {
                if (item.Name.LocalName == "Bulletin") {
                    XAttribute title = item.Attribute("Title");
                    if (title == null) {
                        break;
                    }
                    XAttribute enTitle = item.Attribute("EnTitle");
                    if (enTitle == null) {
                        break;
                    }
                    XAttribute time = item.Attribute("Time");
                    if (time == null) {
                        break;
                    }
                    XElement content = item.Element("Content");
                    if (content == null) {
                        break;
                    }
                    XElement enContent = item.Element("EnContent");
                    if (enContent == null) {
                        break;
                    }
                    m_bulletin = new Bulletin {
                        Title = title.Value,
                        EnTitle = enTitle.Value,
                        Time = $"{languageType}${time.Value}",
                        Content = content.Value,
                        EnContent = enContent.Value
                    };
                    break;
                }
            }
        }
 
        public static void SaveBulletin(string dataString, CancellableProgress progress, Action<byte[]> success, Action<Exception> failure) {
            progress = progress ?? new CancellableProgress();
            if (!WebManager.IsInternetConnectionAvailable()) {
                failure(new InvalidOperationException("Internet connection is unavailable."));
                return;
            }
            Dictionary<string, string> header = new() { { "Content-Type", "application/x-www-form-urlencoded" } };
            Dictionary<string, string> dictionary = new() { { "Operater", SettingsManager.ScpboxAccessToken }, { "Content", dataString } };
            WebManager.Post(
                "https://m.schub.top/com/api/zh/setnotice",
                null,
                header,
                WebManager.UrlParametersToStream(dictionary),
                progress,
                success,
                failure
            );
        }
 
        public static void LoadFilterMods(string dataString) {
            int num = dataString.IndexOf("<Motd3");
            if (num < 0) {
                throw new InvalidOperationException("Invalid MOTD3 data string.");
            }
            int num2 = dataString.IndexOf("</Motd3>");
            if (num2 >= 0
                && num2 > num) {
                num2 += 8;
            }
            XElement xElement = XmlUtils.LoadXmlFromString(dataString.Substring(num, num2 - num), true);
            FilterModAll.Clear();
            foreach (XElement item in xElement.Elements()) {
                if (item.Name.LocalName == "FilterMod") {
                    XAttribute name = item.Attribute("Name");
                    if (name == null) {
                        continue;
                    }
                    XAttribute packageName = item.Attribute("PackageName");
                    if (packageName == null) {
                        continue;
                    }
                    XAttribute version = item.Attribute("Version");
                    if (version == null) {
                        continue;
                    }
                    XAttribute filterAPIVersion = item.Attribute("FilterAPIVersion");
                    if (filterAPIVersion == null) {
                        continue;
                    }
                    FilterMod filterMod = new() {
                        Name = name.Value,
                        PackageName = packageName.Value,
                        Version = version.Value,
                        FilterAPIVersion = filterAPIVersion.Value,
                        Explanation = item.Value
                    };
                    FilterModAll.Add(filterMod);
                }
            }
        }
 
        public static void ShowBulletin() {
            try {
                string time = m_bulletin.Time.Contains('$') ? m_bulletin.Time.Split('$', StringSplitOptions.RemoveEmptyEntries)[1] : string.Empty;
                if (!string.IsNullOrEmpty(time)) {
                    time = (IsCNLanguageType() ? "公告发布时间: " : "Time: ") + time;
                }
                string title = IsCNLanguageType() ? m_bulletin.Title : m_bulletin.EnTitle;
                string content = IsCNLanguageType() ? m_bulletin.Content : m_bulletin.EnContent;
                BulletinDialog bulletinDialog = new(
                    title,
                    content,
                    time,
                    delegate { SettingsManager.BulletinTime = m_bulletin.Time; },
                    delegate(LabelWidget titleLabel, LabelWidget contentLabel) {
                        DialogsManager.ShowDialog(
                            null,
                            new TextBoxDialog(
                                "请输入标题",
                                titleLabel.Text,
                                1024,
                                delegate(string inputTitle) {
                                    DialogsManager.ShowDialog(
                                        null,
                                        new TextBoxDialog(
                                            "请输入内容",
                                            contentLabel.Text.Replace("\n", "[n]"),
                                            8192,
                                            delegate(string inputContent) {
                                                if (!string.IsNullOrEmpty(inputTitle)
                                                    && !string.IsNullOrEmpty(inputContent)) {
                                                    titleLabel.Text = inputTitle;
                                                    contentLabel.Text = inputContent.Replace("[n]", "\n");
                                                    if (IsCNLanguageType()) {
                                                        m_bulletin.Title = titleLabel.Text;
                                                        m_bulletin.Content = contentLabel.Text;
                                                    }
                                                    else {
                                                        m_bulletin.EnTitle = titleLabel.Text;
                                                        m_bulletin.EnContent = contentLabel.Text;
                                                    }
                                                    string languageType = !ModsManager.Configs.TryGetValue("Language", out string value)
                                                        ? "zh-CN"
                                                        : value;
                                                    m_bulletin.Time = $"{languageType}${DateTime.Now}";
                                                }
                                            },
                                            delegate(TextBoxWidget textBox) { textBox.Text = textBox.Text.Replace("\n", "[n]"); }
                                        )
                                    );
                                }
                            )
                        );
                    },
                    delegate(LabelWidget titleLabel, LabelWidget contentLabel) {
                        int num = SettingsManager.MotdLastDownloadedData.IndexOf("<Motd2");
                        int num2 = SettingsManager.MotdLastDownloadedData.IndexOf("</Motd2>") + 8;
                        XElement xElement = XmlUtils.LoadXmlFromString(SettingsManager.MotdLastDownloadedData.Substring(num, num2 - num), true);
                        //string languageType = (!ModsManager.Configs.TryGetValue("Language", out string config)) ? "zh-CN" : config;
                        foreach (XElement item in xElement.Elements()) {
                            if (item.Name.LocalName == "Bulletin") {
                                if (IsCNLanguageType()) {
                                    XAttribute titleAttribute = item.Attribute("Title");
                                    if (titleAttribute != null) {
                                        titleAttribute.Value = titleLabel.m_text;
                                    }
                                    XAttribute contentAttribute = item.Attribute("Content");
                                    if (contentAttribute != null) {
                                        contentAttribute.Value = contentLabel.m_text;
                                    }
                                }
                                else {
                                    XAttribute enTitleAttribute = item.Attribute("EnTitle");
                                    if (enTitleAttribute != null) {
                                        enTitleAttribute.Value = titleLabel.m_text;
                                    }
                                    XAttribute enContentAttribute = item.Attribute("EnContent");
                                    if (enContentAttribute != null) {
                                        enContentAttribute.Value = contentLabel.m_text;
                                    }
                                }
                                XAttribute timeAttribute = item.Attribute("Time");
                                if (timeAttribute != null) {
                                    timeAttribute.Value = DateTime.Now.ToString(CultureInfo.InvariantCulture);
                                }
                                break;
                            }
                        }
                        string newDownloadedData = SettingsManager.MotdLastDownloadedData.Substring(0, num);
                        newDownloadedData += xElement.ToString();
                        newDownloadedData += SettingsManager.MotdLastDownloadedData.Substring(num2);
                        CancellableBusyDialog busyDialog = new("操作等待中", false);
                        DialogsManager.ShowDialog(null, busyDialog);
                        SaveBulletin(
                            newDownloadedData,
                            busyDialog.Progress,
                            delegate(byte[] data) {
                                DialogsManager.HideDialog(busyDialog);
                                JsonElement result = JsonDocument.Parse(data, JsonDocumentReader.DefaultJsonOptions).RootElement;
                                bool success = result[0].GetInt32() == 200;
                                string msg = success ? "公告已更新,建议重启游戏检查效果" : result[1].GetString();
                                if (success) {
                                    SettingsManager.MotdLastDownloadedData = newDownloadedData;
                                }
                                DialogsManager.ShowDialog(null, new MessageDialog("操作成功", msg, LanguageControl.Ok, null, null));
                            },
                            delegate(Exception e) {
                                DialogsManager.HideDialog(busyDialog);
                                Log.Warning($"SaveBulletin:{e.Message}");
                            }
                        );
                    }
                );
                CommunityContentManager.IsAdmin(new CancellableProgress(), delegate(bool isAdmin) { m_isAdmin = isAdmin; }, delegate { });
                bulletinDialog.m_editButton.IsVisible = m_isAdmin;
                bulletinDialog.m_updateButton.IsVisible = m_isAdmin;
                DialogsManager.ShowDialog(null, bulletinDialog);
                CanShowBulletin = false;
            }
            catch (Exception ex) {
                Log.Warning($"Failed ShowBulletin. Reason: {ex.Message}");
            }
        }
 
        public static bool IsCNLanguageType() {
            string languageType = !ModsManager.Configs.TryGetValue("Language", out string value) ? "zh-CN" : value;
            return languageType == "zh-CN";
        }
 
        public static string GetMotdUrl() {
            string languageType = !ModsManager.Configs.TryGetValue("Language", out string value) ? "zh-CN" : value;
            return string.Format(SettingsManager.MotdUpdateUrl, VersionsManager.SerializationVersion, languageType);
        }
    }
}