From 05ccb4d8f1bbe3fb64e117136b4a89bcfb0b0b33 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Tue, 27 Oct 2020 19:21:35 +0800
Subject: Split front and back end.

---
 BackEnd/Timeline/Services/PathProvider.cs | 42 +++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100644 BackEnd/Timeline/Services/PathProvider.cs

(limited to 'BackEnd/Timeline/Services/PathProvider.cs')

diff --git a/BackEnd/Timeline/Services/PathProvider.cs b/BackEnd/Timeline/Services/PathProvider.cs
new file mode 100644
index 00000000..1baba5c0
--- /dev/null
+++ b/BackEnd/Timeline/Services/PathProvider.cs
@@ -0,0 +1,42 @@
+using Microsoft.Extensions.Configuration;
+using System.IO;
+using Timeline.Configs;
+
+namespace Timeline.Services
+{
+    public interface IPathProvider
+    {
+        public string GetWorkingDirectory();
+        public string GetDatabaseFilePath();
+        public string GetDatabaseBackupDirectory();
+    }
+
+    public class PathProvider : IPathProvider
+    {
+        private readonly IConfiguration _configuration;
+
+        private readonly string _workingDirectory;
+
+
+        public PathProvider(IConfiguration configuration)
+        {
+            _configuration = configuration;
+            _workingDirectory = configuration.GetValue<string?>(ApplicationConfiguration.WorkDirKey) ?? ApplicationConfiguration.DefaultWorkDir;
+        }
+
+        public string GetWorkingDirectory()
+        {
+            return _workingDirectory;
+        }
+
+        public string GetDatabaseFilePath()
+        {
+            return Path.Combine(_workingDirectory, ApplicationConfiguration.DatabaseFileName);
+        }
+
+        public string GetDatabaseBackupDirectory()
+        {
+            return Path.Combine(_workingDirectory, ApplicationConfiguration.DatabaseBackupDirectoryName);
+        }
+    }
+}
-- 
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