【Unity】[iOS]Xcode projectの Localization 自動化

using System.IO;
using UnityEditor;
using UnityEditor.Callbacks;
using System.Collections;
using System.Collections.Generic;
#if UNITY_IOS
using UnityEditor.iOS.Xcode;
#endif

public class PostXcodeBuild
{
#if UNITY_IOS
    private struct InfoplistInfo
    {
        public string key;
        public string value;
        public InfoplistInfo(string str1, string str2)
        {
            key = str1;
            value = str2;
        }
    };

    private struct LocalizationInfo
    {
        public string lang;
        public bool isdefault;
        public InfoplistInfo[] infoplist;
        public LocalizationInfo(string langstr, bool flg, InfoplistInfo[] info )
        {
            lang = langstr;
            infoplist = info;
            isdefault = flg;
        }
    };
    private struct CommonInfoPlistInfo
    {
        public InfoplistInfo[] infoplist;
        public CommonInfoPlistInfo(InfoplistInfo[] info)
        {
            infoplist = info;
        }
    };

    private static LocalizationInfo[] localizationInfo = {
        new LocalizationInfo("en", true, new InfoplistInfo[]
        {new InfoplistInfo("CFBundleDisplayName",            "Camera Info"),
         new InfoplistInfo("NSUserTrackingUsageDescription", "Please set to Allow to avoid displaying inappropriate advertisements"),
         new InfoplistInfo("NSCameraUsageDescription",       "Please set to Allow to use camera for displaying preview and getting camera parameters")
        }),
        new LocalizationInfo("ja", false, new InfoplistInfo[]
        {new InfoplistInfo("CFBundleDisplayName",            "カメラパラメータ"),
         new InfoplistInfo("NSUserTrackingUsageDescription", "不適切な広告の表示を避けるために”トラッキングを許可”に設定してください"),
         new InfoplistInfo("NSCameraUsageDescription",       "カメラのプレビュー表示とパラメータ取得のためにカメラ使用を許可設定にしてください。")
        })
    };

    private static string[] skadnetworkitems = new string[] { "cstr6suwn9.skadnetwork"};


    static void createInfoPlistString(string pjdirpath, LocalizationInfo localizationinfo)
    {
        string dirpath = Path.Combine(pjdirpath, "Unity-iPhone Tests");

        if (!Directory.Exists(Path.Combine(dirpath, string.Format("{0}.lproj", localizationinfo.lang)))) {
            Directory.CreateDirectory(Path.Combine(dirpath, string.Format("{0}.lproj", localizationinfo.lang)));
        }
        string plistpath = Path.Combine(dirpath, string.Format("{0}.lproj/InfoPlist.strings", localizationinfo.lang));
        StreamWriter w = new StreamWriter(plistpath, false);
        foreach (InfoplistInfo info in localizationinfo.infoplist) {
            string convertedval = System.Text.Encoding.UTF8.GetString(
                System.Text.Encoding.Convert(
                    System.Text.Encoding.Unicode,
                    System.Text.Encoding.UTF8,
                    System.Text.Encoding.Unicode.GetBytes(info.value)
                    )
            );
            w.WriteLine(string.Format(info.key + " = \"{0}\";", convertedval));
        }
        w.Close();
    }

    static void addknownRegions(string pjdirpath, LocalizationInfo[] info)
    {
        string strtmp = "";
        string pjpath = PBXProject.GetPBXProjectPath(pjdirpath);

        foreach (LocalizationInfo infotmp in info) {
            strtmp += "\t\t" + infotmp.lang + ",\n";
        }
        strtmp += "\t\t);\n";

        StreamReader r = new StreamReader(pjpath);
        string prjstr = "";
        string linetmp = "";
        while (r.Peek() >= 0) {
            linetmp = r.ReadLine();
            if (linetmp.IndexOf("knownRegions") != -1) {
                prjstr += linetmp + "\n";
                prjstr += strtmp;
                while (true) {
                    linetmp = r.ReadLine();
                    if (linetmp.IndexOf(");") != -1) {
                        break;
                    }
                }
            } else {
                prjstr += linetmp + "\n";
            }
        }
        r.Close();
        StreamWriter sw = new StreamWriter(pjpath, false);
        sw.Write(prjstr);
        sw.Close();
    }

    static void addLocalizationInfoPlist(string pjdirpath, LocalizationInfo[] info)
    {
        string plistPath = Path.Combine(pjdirpath, "Info.plist");
        PlistDocument plist = new PlistDocument();

        plist.ReadFromFile(plistPath);
        var array = plist.root.CreateArray("CFBundleLocalizations");
        foreach (LocalizationInfo infotmp in info) {
            array.AddString(infotmp.lang);
        }
        var rootDict = plist.root;
        foreach (LocalizationInfo infotmp in info) {
            if(infotmp.isdefault) {
                foreach (InfoplistInfo pinfo in infotmp.infoplist) {
                    string convertedval = System.Text.Encoding.UTF8.GetString(
                        System.Text.Encoding.Convert(
                            System.Text.Encoding.Unicode,
                            System.Text.Encoding.UTF8,
                            System.Text.Encoding.Unicode.GetBytes(pinfo.value)
                    ));
                    rootDict.SetString(pinfo.key, convertedval);
                }
            }
        }
        plist.WriteToFile(plistPath);
    }

    static void addSkAdNetworkItems(string pjdirpath, string[] skadvallist)
    {
        string plistPath = Path.Combine(pjdirpath, "Info.plist");
        PlistDocument plist = new PlistDocument();
        plist.ReadFromFile(plistPath);

        if (skadvallist != null) {
            var array = plist.root.CreateArray("SKAdNetworkItems");
            foreach (string value in skadvallist) {
                PlistElementDict dict = array.AddDict();
                dict.SetString("SKAdNetworkIdentifier", value);
            }
        }
        plist.WriteToFile(plistPath);
    }

    [PostProcessBuild]
    public static void SetXcodePlist(BuildTarget buildTarget, string pathToBuiltProject)
    {
        if (buildTarget != BuildTarget.iOS) {
            return;
        }

        foreach (LocalizationInfo entry in localizationInfo) {
            /* add infoplist.string */
            createInfoPlistString(pathToBuiltProject, entry);
        }

        /* add knownregions to project */
        addknownRegions(pathToBuiltProject, localizationInfo);

        /* add localization to infoplist */
        addLocalizationInfoPlist(pathToBuiltProject, localizationInfo);

        /* add addSkAdNetworkItems */
        addSkAdNetworkItems(pathToBuiltProject, skadnetworkitems);
    }
#endif
}