From a1c00cc7ea096c996333a2c1ea6668d94f81423a Mon Sep 17 00:00:00 2001
From: Finn Brewer <weeaseled@gmail.com>
Date: Sun, 4 Aug 2024 12:52:26 -0700
Subject: [PATCH] fix: problems when renaming languages

---
 src-tauri/src/main.rs           | 21 +++++++++++++++++++++
 src-tauri/src/stats.rs          |  1 +
 src/App.vue                     |  5 +++++
 src/pages/settings/Index.vue    |  6 +++++-
 src/pages/settings/Settings.vue | 12 ++++++++++--
 5 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index e6ff546..e7ceaa3 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -264,6 +264,7 @@ fn main() {
             setup_stanza,
             check_stanza_installed,
             get_export_variables,
+            rename_language,
         ])
         .on_window_event(handle_window_event)
         .run(tauri::generate_context!())
@@ -470,6 +471,26 @@ async fn set_language(state: State<'_, KalbaState>, language: String) -> Result<
     Ok(())
 }
 
+#[tauri::command]
+async fn rename_language(
+    state: State<'_, KalbaState>,
+    original_name: String,
+    new_name: String,
+) -> Result<(), String> {
+    let mut state = state.0.lock().await;
+    if let Some(old) = state.to_save.language_specific.remove(&original_name) {
+        state
+            .to_save
+            .language_specific
+            .insert(new_name.clone(), old);
+    }
+    if let Some(old) = state.language_cached_data.remove(&original_name) {
+        state.language_cached_data.insert(new_name.clone(), old);
+    }
+    state.current_language = Some(new_name);
+    Ok(())
+}
+
 #[tauri::command]
 async fn write_settings(
     state: State<'_, KalbaState>,
diff --git a/src-tauri/src/stats.rs b/src-tauri/src/stats.rs
index da5e07f..29f39da 100644
--- a/src-tauri/src/stats.rs
+++ b/src-tauri/src/stats.rs
@@ -72,6 +72,7 @@ pub async fn get_words_known_at_levels(
 ) -> Result<Vec<NumWordsKnown>, String> {
     let state = state.0.lock().await;
     let current_language = state.current_language.as_ref().expect("language to be set");
+    log::info!("loading stats for profile {current_language}");
     let words = &state
         .to_save
         .language_specific
diff --git a/src/App.vue b/src/App.vue
index 499a17b..69d1f73 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -252,6 +252,11 @@ onMounted(async () => {
           <router-view
             :currentLanguage="currentLanguage"
             @settingsChanged="updateLanguages"
+            @newCurrentLanguage="
+              updateLanguages();
+              console.log($event);
+              currentLanguage = $event;
+            "
           ></router-view>
         </Suspense>
       </main>
diff --git a/src/pages/settings/Index.vue b/src/pages/settings/Index.vue
index d60bc6b..af40d99 100644
--- a/src/pages/settings/Index.vue
+++ b/src/pages/settings/Index.vue
@@ -8,5 +8,9 @@ const props = defineProps<{
 </script>
 
 <template>
-  <Suspense><Settings :current-language="props.currentLanguage" /></Suspense>
+  <Suspense
+    ><Settings
+      :current-language="props.currentLanguage"
+      @newCurrentLanguage="$emit('newCurrentLanguage', $event)"
+  /></Suspense>
 </template>
diff --git a/src/pages/settings/Settings.vue b/src/pages/settings/Settings.vue
index a1cb959..8d311ba 100644
--- a/src/pages/settings/Settings.vue
+++ b/src/pages/settings/Settings.vue
@@ -90,7 +90,7 @@ watch(
   },
 );
 
-const emit = defineEmits(["settingsChanged"]);
+const emit = defineEmits(["settingsChanged", "newCurrentLanguage"]);
 
 console.log(settings);
 
@@ -294,12 +294,20 @@ async function newLanguage(language: string) {
           class="w-64"
           id="language-name"
           @change="
-            () => {
+            async () => {
               if (selectedLang === null) return;
               const newName = languageNameChanges[selectedLang];
               settings.languages[newName] = settings.languages[selectedLang];
               delete settings.languages[selectedLang];
               languageNameChanges[newName] = newName;
+              if (selectedLang === props.currentLanguage) {
+                await invoke('rename_language', {
+                  originalName: selectedLang,
+                  newName,
+                });
+              }
+              $emit('newCurrentLanguage', newName);
+              selectedLang = newName;
             }
           "
         />