From 242c22e9043602e601d5299749c5c0f4c4d1cd09 Mon Sep 17 00:00:00 2001
From: bigfoot547 <bigfoot@figboot.dev>
Date: Wed, 1 Jan 2025 16:11:41 -0600
Subject: prelim launcher init code

---
 src/launcher.rs        | 55 +++++++++++++++++++++++++++++++++++++++++++++++---
 src/launcher/strsub.rs |  2 +-
 2 files changed, 53 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/launcher.rs b/src/launcher.rs
index 06a5d5b..a4a36e2 100644
--- a/src/launcher.rs
+++ b/src/launcher.rs
@@ -4,6 +4,8 @@ mod profile;
 mod strsub;
 
 use std::collections::HashMap;
+use std::error::Error;
+use std::path::{Path, PathBuf};
 use serde::{Deserialize, Serialize};
 use version::VersionList;
 use crate::launcher::profile::{Instance, Profile};
@@ -15,17 +17,64 @@ pub struct Settings {
 }
 
 pub struct Launcher {
+    home: PathBuf,
     versions: VersionList,
+    
+    settings_path: PathBuf, // maybe redundant but idc >:3
     settings: Settings,
 }
 
 impl Launcher {
-    pub fn new(versions: VersionList, settings: Settings) -> Launcher {
-        Launcher {
+    // FIXME: more descriptive error type por favor
+    pub async fn new(home: &Path, online: bool) -> Result<Launcher, Box<dyn Error>> {
+        let home = home.to_owned();
+        let versions;
+        
+        if online {
+            versions = VersionList::online(home.join("versions").as_ref()).await?;
+        } else {
+            versions = VersionList::offline(home.join("versions").as_ref()).await?;
+        }
+        
+        let settings_path = home.join("ozone.json");
+        let settings = serde_json::from_str(tokio::fs::read_to_string(&settings_path).await?.as_str())?;
+
+        Ok(Launcher {
+            home: home.to_owned(),
             versions,
+            settings_path,
             settings
-        }
+        })
     }
 
+    pub async fn launch(profile: &Profile) -> Result<(), Box<dyn Error>> {
+        /* tasks 2 l;aunch the gayme!!!! :3
+         *  - java runtime
+         *    - normal process (good research, past figboot :3)
+         *  - libraries
+         *    - check which libraries we actually need (some have classifiers that don't apply to us)
+         *    - of the libraries we need, check which have correct size and sha1
+         *    - redownload necessary libraries
+         *      - (if offline mode and there are libraries to download, then explode violently)
+         *    - extract natives
+         *  - logging
+         *    - download the config if present and necessary
+         *      - (explode if offline mode and we need to download stuff)
+         *  - assets
+         *    - get asset index (check if our local copy is good and redownload if not)
+         *    - check what ones are good and what needs to be downloaded
+         *    - download them
+         *      - (if offline mode, explode)
+         *    - if virtual or resource-mapped, copy (or perhaps hardlink? that would be cool)
+         *  - the actual client jar
+         *    - check integriddy and download if needed
+         *      - (explode if offline mode)
+         *  - launch the game
+         *    - build argument list and whatnot also
+         */
 
+
+
+        todo!()
+    }
 }
\ No newline at end of file
diff --git a/src/launcher/strsub.rs b/src/launcher/strsub.rs
index fba449a..447021a 100644
--- a/src/launcher/strsub.rs
+++ b/src/launcher/strsub.rs
@@ -34,7 +34,7 @@ where
 
 // handles ${replacements} on this string IN-PLACE. Calls the "sub" function for each key it receives.
 // if "sub" returns None, it will use a default value or ignore the ${substitution}.
-// There are no "invalid inputs" and this function should never panic.
+// There are no "invalid inputs" and this function should never panic unless "sub" panics.
 pub fn replace_string<T>(input: &mut String, sub: T)
 where
     T: Fn(/*key: */ &str) -> Option<String>
-- 
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