advotracker: implement get_lang

* readin language environment and preset the strings

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

advotracker/src/callbacks/global_state.rs

@@ -5,7 +5,10 @@
  * SPDX-License-Identifier: (0BSD or MIT)
  */
 
+use dotenv::dotenv;
 use serde::Deserialize;
+use std::env;
+use tracing::{info, trace};
 
 use orbtk::prelude::*;
 
@@ -23,8 +26,25 @@ struct Environment {
     rust_log: String,
 }
 
-/// Provides generic methods to handle states of datatypes (e.g. used in `PolicyCheckState`).
+/// Provides generic methods to handle states of datatypes.
 pub trait GlobalState {
+    /// Get the active language environment.
+    fn get_lang() -> String {
+        // get system environment
+        let mut lang = env::var("LANG").unwrap_or("C".to_string());
+
+        // testing environment: read from .env file
+        dotenv().ok();
+        match envy::from_env::<Environment>() {
+            Ok(environment) => {
+                if environment.test_lang != lang { lang = environment.test_lang; }
+            },
+            Err(e) => { info!(target: "advotracker", "{}", e) }
+        }
+        trace!(target: "advotracker", lang = ?lang);
+        lang
+    }
+
     // /// Navigates to the given entity.
     // fn navigate(&self, to: Entity, ctx: &mut Context<'_>) {
     //     if let Some(old_focused_element) = ctx.window().get::<Global>("global").focused_widget {
@@ -53,3 +73,9 @@ pub trait GlobalState {
             .unwrap();
     }
 }
+
+// #[cfg(test)]
+// mod tests {
+//     #[test]
+//     assert_eq!(2 + 2, 4);
+// }

advotracker/src/callbacks/policycheck_state.rs

@@ -1,4 +1,3 @@
-use dotenv::dotenv;
 use locales::t;
 use orbtk::{
     prelude::*,
@@ -14,7 +13,7 @@ use orbtk::theme::DARK_THEME_RON;
 use orbtk::theme::LIGHT_THEME_RON;
 
 use serde::Deserialize;
-use std::{env, process};
+use std::process;
 use std::collections::HashMap;
 use std::time::{Duration, SystemTime};
 use tracing::{error, info, trace};
@@ -134,23 +133,6 @@ impl PolicyCheckState {
         TextBox::text_set(&mut ctx.widget(), String::from(""));
     }
 
-    /// Get the active language environment.
-    pub fn get_lang() -> String {
-        // get system environment
-        let mut lang = env::var("LANG").unwrap_or("C".to_string());
-
-        // testing environment: read from .env file
-        dotenv().ok();
-        match envy::from_env::<Environment>() {
-            Ok(environment) => {
-                if environment.test_lang != lang { lang = environment.test_lang; }
-            },
-            Err(e) => { info!(target: "advotracker", "{}", e) }
-        }
-        trace!(target: "advotracker", lang = ?lang);
-        lang
-    }
-
     /// Import policy numbers into hashmap
     fn import_data(&mut self, ctx: &mut Context<'_>)
                    -> Result<(), Box<dyn std::error::Error>> {

advotracker/src/main.rs

@@ -12,18 +12,19 @@
 //extern crate lazy_static;
 
 //use chrono::{Local, DateTime};
+use dotenv::dotenv;
 use locales::t;
 use serde::Deserialize;
-//use std::env;
+use std::env;
 //use std::process;
-use tracing::{trace, Level};
+use tracing::{info, trace, Level};
 
 use orbtk::prelude::*;
 
 // The Main view
 use advotracker::{
-    widgets::main_view,
     callbacks::policycheck_state::PolicyCheckState,
+    widgets::main_view,
 };
 
 mod parse_args;
@@ -33,6 +34,7 @@ mod parse_args;
 /// this is primarily used in testing scenarios (eg. debugging)
 #[derive(Debug, Deserialize)]
 struct Environment {
+    lang: String,
     test_lang: String,
     rust_log: String,
 }
@@ -40,6 +42,23 @@ struct Environment {
 // German localization file.
 static ADVOTRACKER_DE_DE: &str = include_str!("../resources/advotracker/advotracker_de_DE.ron");
 
+/// Get the active language environment.
+fn get_lang() -> String {
+    // get system environment
+    let mut lang = env::var("LANG").unwrap_or("C".to_string());
+
+    // testing environment: read from .env file
+    dotenv().ok();
+    match envy::from_env::<Environment>() {
+        Ok(environment) => {
+            if environment.test_lang != lang { lang = environment.test_lang; }
+        },
+        Err(e) => { info!(target: "advotracker", "{}", e) }
+    }
+    trace!(target: "advotracker", lang = ?lang);
+    lang
+}
+
 fn main() -> Result<(), Box<dyn std::error::Error>> {
     use parse_args::parse_args;
     use tracing_subscriber::fmt;
@@ -69,7 +88,7 @@ fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     tracing::subscriber::with_default(subscriber, || {
         // get system environment
-        let lang = PolicyCheckState::get_lang();
+        let lang = get_lang();
 
         let mut state = t!("state.started", lang);
         let mut res = t!("parse.environment", lang);