From 312cddf2c2b6fd715e3133095c4562c78807b236 Mon Sep 17 00:00:00 2001
From: GeckoEidechse <gecko.eidechse+git@pm.me>
Date: Thu, 1 Sep 2022 19:26:39 +0200
Subject: Handle gamepath check if manually selected

as well as Northstar existence and up-to-date check
---
 src-tauri/src/lib.rs  | 13 +++++++++++++
 src-tauri/src/main.rs | 17 +++++++++++++++--
 src-ui/src/main.ts    | 28 ++++++++++++++++++++++------
 3 files changed, 50 insertions(+), 8 deletions(-)

diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 626f083b..58a04c5e 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -88,3 +88,16 @@ pub fn get_northstar_version_number() -> Result<String, anyhow::Error> {
 
     Ok(initial_version_number)
 }
+
+/// Checks whether the provided path is a valid Titanfall2 gamepath by checking against a certain set of criteria
+pub fn check_is_valid_game_path(game_install_path: &str) -> Result<(), anyhow::Error> {
+    let is_correct_game_path =
+        std::path::Path::new(&format!("{}/Titanfall2.exe", game_install_path)).exists();
+    println!("Titanfall2.exe exists in path? {}", is_correct_game_path);
+
+    // Exit early if wrong game path
+    if !is_correct_game_path {
+        return Err(anyhow!("Incorrect game path \"{}\"", game_install_path)); // Return error cause wrong game path
+    }
+    Ok(())
+}
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index e81be131..34dcc39c 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -8,7 +8,7 @@ use std::{
     time::Duration,
 };
 
-use app::{find_game_install_location, get_northstar_version_number};
+use app::{check_is_valid_game_path, find_game_install_location, get_northstar_version_number};
 use tauri::{Manager, State};
 use tokio::time::sleep;
 
@@ -47,7 +47,8 @@ fn main() {
             find_game_install_location_caller,
             get_version_number,
             get_northstar_version_number_caller,
-            check_is_northstar_outdated
+            check_is_northstar_outdated,
+            verify_install_location
         ])
         .run(tauri::generate_context!())
         .expect("error while running tauri application");
@@ -107,3 +108,15 @@ fn check_is_northstar_outdated() -> bool {
     // TODO implement check
     false
 }
+
+#[tauri::command]
+/// Checks if is valid Titanfall2 install based on certain conditions
+fn verify_install_location(game_path: String) -> bool {
+    match check_is_valid_game_path(&game_path) {
+        Ok(()) => true,
+        Err(err) => {
+            println!("{}", err);
+            false
+        }
+    }
+}
diff --git a/src-ui/src/main.ts b/src-ui/src/main.ts
index aedcceb5..6eaee030 100644
--- a/src-ui/src/main.ts
+++ b/src-ui/src/main.ts
@@ -51,16 +51,32 @@ document.addEventListener("DOMContentLoaded", async function () {
             } else {
                 // user selected a single directory
                 alert(selected);
-                
-                globalState.gamepath = selected;
+
 
                 // TODO Verify if valid Titanfall2 install location
+                let is_valid_titanfall2_install = await invoke("verify_install_location", { game_path: selected }) as boolean;
+                if (is_valid_titanfall2_install) {
+                    globalState.gamepath = selected;
 
-                // Update omni-button
-                omniButtonEl.textContent = "Install";
+                    // Update omni-button
+                    omniButtonEl.textContent = "Install";
 
-                // TODO Check for Northstar install
-                // TODO Check for updated Northstar
+                    // Check for Northstar install
+                    let northstar_version_number = await invoke("get_northstar_version_number_caller") as string;
+                    if (northstar_version_number && northstar_version_number.length > 0) {
+                        globalState.installed_northstar_version = northstar_version_number;
+                        omniButtonEl.textContent = `Play (${northstar_version_number})`;
+                        // Check for updated Northstar
+                        let northstar_is_outdated = await invoke("check_is_northstar_outdated") as boolean;
+                        if (northstar_is_outdated) {
+                            omniButtonEl.textContent = "Update";
+                        }
+                    }
+                }
+                else {
+                    // Not valid Titanfall2 install
+                    alert("Not a valid Titanfall2 install");
+                }
             }
             return;
         }
-- 
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