refactor Generalise temporary directory structure (#458)

The temp folder we create could be reused for a lot more things, like extracting Northstar before moving files into the correct place.

As such adjust the naming and structure to accommodate this.

src-tauri/src/development/mod.rs

@@ -25,7 +25,7 @@ pub async fn install_git_main(game_install_path: &str) -> Result<String, String>
     };
 
     let extract_directory = format!(
-        "{}/___flightcore-temp-download-dir/launcher-pr-{}",
+        "{}/___flightcore-temp/download-dir/launcher-pr-{}",
         game_install_path, latest_commit_sha
     );
     match std::fs::create_dir_all(extract_directory.clone()) {

src-tauri/src/github/pull_requests.rs

@@ -253,7 +253,7 @@ pub async fn apply_launcher_pr(
     };
 
     let extract_directory = format!(
-        "{}/___flightcore-temp-download-dir/launcher-pr-{}",
+        "{}/___flightcore-temp/download-dir/launcher-pr-{}",
         game_install_path, pull_request.number
     );
     match std::fs::create_dir_all(extract_directory.clone()) {

src-tauri/src/mod_management/mod.rs

@@ -537,7 +537,7 @@ pub async fn fc_download_mod_and_install(
     log::info!("Attempting to install \"{thunderstore_mod_string}\" to {game_install:?}");
     // Get mods and download directories
     let download_directory = format!(
-        "{}/___flightcore-temp-download-dir/",
+        "{}/___flightcore-temp/download-dir/",
         game_install.game_path
     );
 
@@ -584,7 +584,7 @@ pub async fn fc_download_mod_and_install(
     };
 
     let path = format!(
-        "{}/___flightcore-temp-download-dir/{thunderstore_mod_string}.zip",
+        "{}/___flightcore-temp/download-dir/{thunderstore_mod_string}.zip",
         game_install.game_path
     );
 

src-tauri/src/northstar/install.rs

@@ -37,7 +37,7 @@ async fn do_install(
 ) -> Result<()> {
     let filename = format!("northstar-{}.zip", nmod.version);
     let download_directory = format!(
-        "{}/___flightcore-temp-download-dir/",
+        "{}/___flightcore-temp/download-dir/",
         game_install.game_path
     );
 

src-tauri/src/repair_and_verify/mod.rs

@@ -40,26 +40,30 @@ pub fn clean_up_download_folder(
     game_install: &GameInstall,
     force: bool,
 ) -> Result<(), anyhow::Error> {
-    // Get download directory
-    let download_directory = format!(
-        "{}/___flightcore-temp-download-dir/",
-        game_install.game_path
-    );
+    const TEMPORARY_DIRECTORIES: [&str; 3] = [
+        "___flightcore-temp-download-dir",
+        "___flightcore-temp/download-dir",
+        "___flightcore-temp",
+    ];
 
-    // Check if files in folder
-    let download_dir_contents = std::fs::read_dir(download_directory.clone())?;
-    // dbg!(download_dir_contents);
+    for directory in TEMPORARY_DIRECTORIES {
+        // Get download directory
+        let download_directory = format!("{}/{}/", game_install.game_path, directory);
 
-    let mut count = 0;
-    download_dir_contents.for_each(|_| count += 1);
+        // Check if files in folder
+        let download_dir_contents = std::fs::read_dir(download_directory.clone())?;
+        // dbg!(download_dir_contents);
 
-    if count > 0 && !force {
-        return Err(anyhow!("Folder not empty, not deleting"));
-    }
+        let mut count = 0;
+        download_dir_contents.for_each(|_| count += 1);
 
-    // Delete folder
-    std::fs::remove_dir_all(download_directory)?;
+        if count > 0 && !force {
+            return Err(anyhow!("Folder not empty, not deleting"));
+        }
 
+        // Delete folder
+        std::fs::remove_dir_all(download_directory)?;
+    }
     Ok(())
 }