From cc62df19e5f8aa216660915f46ff290c8eeab1d0 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Fri, 12 Jun 2020 18:39:24 +0800
Subject: refactor(backend): Move some string constant from PathProvider to
 ApplicationConfiguration.

---
 Timeline/Configs/ApplicationConfiguration.cs | 3 +++
 Timeline/Services/PathProvider.cs            | 7 +++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Timeline/Configs/ApplicationConfiguration.cs b/Timeline/Configs/ApplicationConfiguration.cs
index 2715f84e..fec7f06c 100644
--- a/Timeline/Configs/ApplicationConfiguration.cs
+++ b/Timeline/Configs/ApplicationConfiguration.cs
@@ -2,6 +2,9 @@
 {
     public static class ApplicationConfiguration
     {
+        public const string WorkDirKey = "WorkDir";
+        public const string DefaultWorkDir = "/timeline";
+        public const string DatabaseFileName = "timeline.db";
         public const string DisableFrontEndKey = "DisableFrontEnd";
         public const string FrontEndProxyOnlyKey = "FrontEndProxyOnly";
     }
diff --git a/Timeline/Services/PathProvider.cs b/Timeline/Services/PathProvider.cs
index eefbf41a..ac7cd800 100644
--- a/Timeline/Services/PathProvider.cs
+++ b/Timeline/Services/PathProvider.cs
@@ -1,5 +1,6 @@
 using Microsoft.Extensions.Configuration;
 using System.IO;
+using Timeline.Configs;
 
 namespace Timeline.Services
 {
@@ -11,8 +12,6 @@ namespace Timeline.Services
 
     public class PathProvider : IPathProvider
     {
-        const string DatabaseFileName = "timeline.db";
-
         private readonly IConfiguration _configuration;
 
         private readonly string _workingDirectory;
@@ -21,7 +20,7 @@ namespace Timeline.Services
         public PathProvider(IConfiguration configuration)
         {
             _configuration = configuration;
-            _workingDirectory = configuration.GetValue<string?>("WorkDir") ?? "/timeline";
+            _workingDirectory = configuration.GetValue<string?>(ApplicationConfiguration.WorkDirKey) ?? ApplicationConfiguration.DefaultWorkDir;
         }
 
         public string GetWorkingDirectory()
@@ -31,7 +30,7 @@ namespace Timeline.Services
 
         public string GetDatabaseFilePath()
         {
-            return Path.Combine(_workingDirectory, DatabaseFileName);
+            return Path.Combine(_workingDirectory, ApplicationConfiguration.DatabaseFileName);
         }
     }
 }
-- 
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