Fix the admin server not creating config.json if not found

.gitignore

@@ -1,2 +1,3 @@
 /target
 .idea/
+config.json

src/bin/kawari-admin.rs

@@ -10,6 +10,14 @@ use axum::response::{Html, Redirect};
 use axum::routing::post;
 use kawari::config::Config;
 
+fn get_config() -> Config {
+    if let Ok(data) = std::fs::read_to_string("config.json") {
+        serde_json::from_str(&data).expect("Failed to parse")
+    } else {
+        Config::default()
+    }
+}
+
 #[derive(Debug, Clone, Serialize, Deserialize)]
 struct GateStatus {
     status: i32,
@@ -18,14 +26,9 @@ struct GateStatus {
 async fn root() -> Html<String> {
     tracing::info!("Requesting gate status...");
 
-    // read config
+    let config = get_config();
-    if let Ok(data) = std::fs::read_to_string("config.json") {
-        let config: Config = serde_json::from_str(&data).expect("Failed to parse");
 
     Html(format!("<p>Gate open:{}</p><form action='apply' method='post'><input type='checkbox' id='gate_open' name='gate_open' checked /><button type='submit'>Apply</button></form>", config.gate_open))
-    } else {
-        Html(format!("unknown error"))
-    }
 }
 
 #[derive(Deserialize, Debug)]
@@ -37,8 +40,8 @@ struct Input {
 async fn apply(Form(input): Form<Input>) -> Redirect {
     tracing::info!("Apply config changes...");
 
-    if let Ok(data) = std::fs::read_to_string("config.json") {
+    let mut config = get_config();
-        let mut config: Config = serde_json::from_str(&data).expect("Failed to parse");
+
     if let Some(gate_open) = input.gate_open {
         config.gate_open = gate_open == "on";
     } else {
@@ -50,7 +53,6 @@ async fn apply(Form(input): Form<Input>) -> Redirect {
         &config,
     )
     .expect("TODO: panic message");
-    }
 
     Redirect::to("/")
 }

src/config.rs

@@ -4,3 +4,11 @@ use serde::{Deserialize, Serialize};
 pub struct Config {
     pub gate_open: bool
 }
+
+impl Default for Config {
+    fn default() -> Self {
+        Self {
+            gate_open: false,
+        }
+    }
+}