From 0829ae900a3c7917fcedb05ab386d7a2a8722faf Mon Sep 17 00:00:00 2001
From: GeckoEidechse <40122905+GeckoEidechse@users.noreply.github.com>
Date: Thu, 28 Dec 2023 02:13:07 +0100
Subject: feat: Delete previous core mod files (#659)

* feat: Delete previous mod files

* feat: Print folder name that failed to get removed

* fix: Remove print visual guard

* fix: Remove unnecessary print
---
 src-tauri/src/northstar/install.rs | 48 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/src-tauri/src/northstar/install.rs b/src-tauri/src/northstar/install.rs
index 693d7af2..a89de018 100644
--- a/src-tauri/src/northstar/install.rs
+++ b/src-tauri/src/northstar/install.rs
@@ -4,7 +4,7 @@ use std::time::Duration;
 use std::{cell::RefCell, time::Instant};
 use ts_rs::TS;
 
-use crate::constants::{NORTHSTAR_DEFAULT_PROFILE, NORTHSTAR_DLL, TITANFALL2_STEAM_ID};
+use crate::constants::{CORE_MODS, NORTHSTAR_DEFAULT_PROFILE, NORTHSTAR_DLL, TITANFALL2_STEAM_ID};
 use crate::{
     util::{extract, move_dir_all},
     GameInstall, InstallType,
@@ -162,6 +162,52 @@ async fn do_install(
 
     log::info!("Installing Northstar...");
 
+    // Delete previous version here
+    for core_mod in CORE_MODS {
+        let path_to_delete_string = format!(
+            "{}/{}/mods/{}/",
+            game_install.game_path, game_install.profile, core_mod
+        );
+        log::info!("Preparing to remove {}", path_to_delete_string);
+
+        // Check if folder exists
+        let path_to_delete = std::path::Path::new(&path_to_delete_string);
+
+        // Check if path even exists before we attempt to remove
+        if !path_to_delete.exists() {
+            log::info!("{} does not exist. Skipping", path_to_delete_string);
+            continue;
+        }
+
+        if !path_to_delete.is_dir() {
+            log::error!(
+                "{} exists but is a file? This should never happen",
+                path_to_delete_string
+            );
+            continue;
+        }
+
+        // Safety check for mod.json
+        // Just so that we won't ever have a https://github.com/ValveSoftware/steam-for-linux/issues/3671 moment
+        let mod_json_path = format!("{}/mod.json", path_to_delete_string);
+        let mod_json_path = std::path::Path::new(&mod_json_path);
+
+        if !mod_json_path.exists() {
+            log::error!("Missing mod.json for {path_to_delete_string} this shouldn't happen");
+            continue;
+        }
+
+        // Finally delete file
+        match std::fs::remove_dir_all(path_to_delete) {
+            Ok(()) => {
+                log::info!("Succesfully removed")
+            }
+            Err(err) => {
+                log::error!("Failed removing {} due to {}", path_to_delete_string, err)
+            }
+        };
+    }
+
     for entry in std::fs::read_dir(extract_directory).unwrap() {
         let entry = entry.unwrap();
         let destination = format!(
-- 
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