From e49cc9cb91a7bbe74d95b0502e7aaf809137ac77 Mon Sep 17 00:00:00 2001
From: Christoph Hagen <github@christophhagen.de>
Date: Tue, 11 Oct 2022 12:00:46 +0200
Subject: [PATCH] Load configuration from file

---
 Sources/App/Management/Configuration.swift | 32 ++++++++++++++++++++++
 Sources/App/configure.swift                |  6 +++-
 2 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 Sources/App/Management/Configuration.swift

diff --git a/Sources/App/Management/Configuration.swift b/Sources/App/Management/Configuration.swift
new file mode 100644
index 0000000..57796e9
--- /dev/null
+++ b/Sources/App/Management/Configuration.swift
@@ -0,0 +1,32 @@
+import Foundation
+
+struct Configuration {
+
+    let serverPort: Int
+}
+
+extension Configuration {
+
+    init(loadFromUrl url: URL) throws {
+        let data: Data
+        do {
+            data = try Data(contentsOf: url)
+        } catch {
+            print("Failed to load configuration data from \(url.path): \(error)")
+            throw error
+        }
+        try self.init(data: data)
+    }
+
+    init(data: Data) throws {
+        do {
+            self = try JSONDecoder().decode(Configuration.self, from: data)
+        } catch {
+            print("Failed to decode configuration: \(error)")
+            throw error
+        }
+    }
+}
+extension Configuration: Codable {
+
+}
diff --git a/Sources/App/configure.swift b/Sources/App/configure.swift
index c8de8af..085afca 100644
--- a/Sources/App/configure.swift
+++ b/Sources/App/configure.swift
@@ -7,7 +7,11 @@ var server: SQLiteDatabase!
 public func configure(_ app: Application) throws {
     let storageFolder = URL(fileURLWithPath: app.directory.resourcesDirectory)
 
-    app.http.server.configuration.port = 6002
+    let configPath = URL(fileURLWithPath: app.directory.resourcesDirectory)
+        .appendingPathComponent("config.json")
+    let configuration = try Configuration(loadFromUrl: configPath)
+
+    app.http.server.configuration.port = configuration.serverPort
 
     // Set target environment
     app.environment = .production