bykovme/nswallet

using System;
using System.IO;
using System.Reflection;
using System.Text;
using NSWallet.Shared.Helpers.Logs.AppLog;

namespace NSWallet.Shared
{
    public static class NSWLocalFiles
    {
        const string notPremium = ".notpremium.html";
        const string oldPremium = ".old_premium.html";
        const string helpImportBackup = ".help_import_backup.html";
        const string privacyPolicy = ".privacy_policy.html";
        const string termsOfUse = ".terms_of_use.html";
        const string feedbackDescription = ".feedback_description.html";

        static string RunNameSpace;

        public static void Init(string resNamespace)
        {
            RunNameSpace = resNamespace;
        }

        static Stream GetStream(string langCode, string file)
        {
            var assembly = typeof(NSWLocalFiles).GetTypeInfo().Assembly;
            return assembly.GetManifestResourceStream(RunNameSpace + GConsts.EMBEDDED_LOCAL_FILES_PATH + langCode + file);
        }

        static string GetHTML(string langCode, string file)
        {
            if (string.IsNullOrEmpty(RunNameSpace))
            {
                throw new ResourcesException("Namespace is not set");
            }

            var stream = GetStream(langCode, file);
            if (stream == null)
                stream = GetStream("en", file);

            try {
                using (var reader = new StreamReader(stream, Encoding.UTF8)) {
                    return reader.ReadToEnd();
                }
            } catch (Exception ex) {
                AppLogs.Log(ex.Message, nameof(GetHTML), nameof(NSWLocalFiles));
                return "HTML Source is not found: " + GConsts.EMBEDDED_LOCAL_FILES_PATH + langCode + file + ", " + ex.Message;
            }
        }

        public static string GetNotPremiumHTML(string langCode)
        {
            return GetHTML(langCode, notPremium);
        }

        public static string GetOldPremiumHTML(string langCode)
        {
            return GetHTML(langCode, oldPremium);
        }

        public static string GetImportBackupHelpHTML(string langCode) {
            return GetHTML(langCode, helpImportBackup);
        }

        public static string GetPrivacyPolicyHTML(string langCode)
        {
            return GetHTML(langCode, privacyPolicy);
        }

        public static string GetTermsOfUseHTML(string langCode)
        {
            return GetHTML(langCode, termsOfUse);
        }

        public static string GetFeedbackDescriptionHTML(string langCode)
        {
            return GetHTML(langCode, feedbackDescription);
        }
    }
}