refactor config

backend/src/main/kotlin/com/infendro/account/config/Config.kt

@@ -1,45 +1,42 @@
 package com.infendro.account.config
 
-import io.ktor.server.config.ApplicationConfig
+import io.ktor.server.application.*
+import io.ktor.server.config.*
+import kotlinx.serialization.Serializable
 
-data class DatabaseConfig(
-    val host: String,
-    val username: String,
-    val password: String,
+data class Config(
+    val database: Database,
+    val security: Security,
 ) {
-    val url: String
-        get() = "jdbc:postgresql://${host}/account"
+    @Serializable
+    data class Database(
+        val host: String,
+        val username: String,
+        val password: String,
+    ) {
+        val url: String
+            get() = "jdbc:postgresql://${host}/account"
+
+        operator fun component4() = url
+    }
+
+    @Serializable
+    data class Security(
+        val cookie: Cookie,
+    ) {
+        @Serializable
+        data class Cookie(
+            val domain: String,
+            val path: String,
+            val secure: Boolean,
+        )
+    }
 }
 
-data class SecurityConfig(
-    val cookie: CookieConfig,
-)
-
-data class CookieConfig(
-    val domain: String,
-    val path: String,
-    val secure: Boolean,
-)
-
-val ApplicationConfig.database: DatabaseConfig
+val Application.configuration: Config
     get() {
-        val host = property("database.host").getString()
-        val username = property("database.username").getString()
-        val password = property("database.password").getString()
-
-        return DatabaseConfig(host, username, password)
-    }
-
-val ApplicationConfig.security: SecurityConfig
-    get() {
-        return SecurityConfig(cookie)
-    }
-
-private val ApplicationConfig.cookie: CookieConfig
-    get() {
-        val domain = property("security.cookie.domain").getString()
-        val path = property("security.cookie.path").getString()
-        val secure = property("security.cookie.secure").getString().toBooleanStrict()
-
-        return CookieConfig(domain, path, secure)
+        return Config(
+            database = property("database"),
+            security = property("security"),
+        )
     }

backend/src/main/kotlin/com/infendro/account/config/Database.kt

@@ -8,12 +8,12 @@ import io.ktor.server.application.*
 import org.jetbrains.exposed.sql.Database
 
 fun Application.configureDatabase() {
-    val config = environment.config.database
+    val config = configuration
 
     Database.connect(
-        url = config.url,
-        user = config.username,
-        password = config.password,
+        url = config.database.url,
+        user = config.database.username,
+        password = config.database.password,
     )
 
     install(Migration) {

backend/src/main/kotlin/com/infendro/account/config/Security.kt

@@ -28,16 +28,16 @@ data class AuthenticationPrincipal(
 }
 
 fun Application.configureSecurity() {
-    val config = environment.config.security
+    val config = configuration
 
     install(Sessions) {
         cookie<AuthenticationSession>("Authentication") {
-            cookie.domain = config.cookie.domain
-            cookie.path = config.cookie.path
-            cookie.httpOnly = true
-            cookie.secure = config.cookie.secure
-            cookie.extensions["SameSite"] = "Strict"
-            cookie.maxAge = 7.days
+            this.cookie.domain = config.security.cookie.domain
+            this.cookie.path = config.security.cookie.path
+            this.cookie.httpOnly = true
+            this.cookie.secure = config.security.cookie.secure
+            this.cookie.extensions["SameSite"] = "Strict"
+            this.cookie.maxAge = 7.days
         }
     }
     install(Authentication) {