feat: Patch notes (#18)

* feat: add Rust method to fetch Northstar release notes

* feat: fetch release notes on changelog view mount

* feat: only transmit some info to frontend

GitHub API gives much information about releases, we only need some: name,
publication date and content of such release; so other information is not
transmitted to UI.

* feat: add ReleaseInfo Typescript interface matching Rust struct

* feat: display release notes on a timeline

* refactor: remove old releases external link

* build: add marked dependency

* build: add marked types dev dependency

* feat: format release notes' markdown

* fix: member typo in ReleaseInfo interface

* fix: type releases array

* fix: open github links in external browser

* fix: adjust marked import

* refactor: store release notes in store

Release notes are now stored in the app store, so we don't have to
fetch them multiple times.

* fix: notes fetching method is now async

* feat: display a loading bar while release notes are being fetched

* feat: display dates in white

* feat: release notes' dates are human-readable

* fix: make menu bar appear on top of release notes view when scrolled

* feat: add custom scrollbar

* refactor: format releases creation to please reviewer

* Update src-tauri/src/github/mod.rs

* Update src-tauri/src/github/release_notes.rs

* Update src-vue/src/utils/ReleaseInfo.d.ts

* fix: augment scrollbar opacity

* fix: only display releases' release date (no more time of the day)

* fix: adjust Github request user agent

* style: add missing end line in src-vue/src/style.css

* fix: link formatting only targets GitHub PR links (whose name begins with a #)

* fix: timeline element children cannot be bigger than container card

3 files changed, 53 insertions, 0 deletions

diff --git a/src-tauri/src/github/mod.rs b/src-tauri/src/github/mod.rs
new file mode 100644
index 00000000..80a1831a
--- /dev/null
+++ b/src-tauri/src/github/mod.rs
@@ -0,0 +1 @@
+pub mod release_notes;
diff --git a/src-tauri/src/github/release_notes.rs b/src-tauri/src/github/release_notes.rs
new file mode 100644
index 00000000..db705dab
--- /dev/null
+++ b/src-tauri/src/github/release_notes.rs
@@ -0,0 +1,48 @@
+use std::vec::Vec;
+use serde::{Deserialize, Serialize};
+
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct ReleaseInfo {
+    pub name: String,
+    pub published_at: String,
+    pub body: String
+}
+
+#[tauri::command]
+pub async fn get_northstar_release_notes() -> Result<Vec<ReleaseInfo>, String> {
+    println!("Fetching releases notes from GitHub API");
+
+    let url = "https://api.github.com/repos/R2Northstar/Northstar/releases";
+    let user_agent = "GeckoEidechse/FlightCore";
+    let client = reqwest::Client::new();
+    let res = client
+        .get(url)
+        .header(reqwest::header::USER_AGENT, user_agent)
+        .send()
+        .await
+        .unwrap()
+        .text()
+        .await
+        .unwrap();
+
+    let json_response: Vec<serde_json::Value> =
+        serde_json::from_str(&res).expect("JSON was not well-formatted");
+    println!("Done checking GitHub API");
+    
+    return Ok(
+        json_response.iter().map(|release| ReleaseInfo {
+            name: release.get("name")
+                .and_then(|value| value.as_str())
+                .unwrap()
+                .to_string(),
+            published_at: release.get("published_at")
+                .and_then(|value| value.as_str())
+                .unwrap()
+                .to_string(),
+            body: release.get("body")
+                .and_then(|value| value.as_str())
+                .unwrap()
+                .to_string(),
+        }).collect()
+    );
+}
diff --git a/src-tauri/src/main.rs b/src-tauri/src/main.rs
index c3172ee8..26f138ba 100644
--- a/src-tauri/src/main.rs
+++ b/src-tauri/src/main.rs
@@ -16,6 +16,9 @@ use app::{
     install_northstar, launch_northstar, linux_checks_librs, GameInstall, NorthstarMod,
 };
 
+mod github;
+use github::release_notes::get_northstar_release_notes;
+
 mod repair_and_verify;
 use repair_and_verify::{verify_game_files, disable_all_but_core};
 
@@ -91,6 +94,7 @@ fn main() {
             set_mod_enabled_status_caller,
             disable_all_but_core_caller,
             is_debug_mode,
+            get_northstar_release_notes,
             linux_checks,
             get_installed_mods_caller,
         ])