add: last.fm status integration

crates/core/src/database/connections/last_fm.rs

@@ -0,0 +1,42 @@
+use std::collections::HashMap;
+use crate::{
+    config::Config,
+    model::auth::{ConnectionType, ExternalConnectionInfo, UserConnections},
+};
+use md5::{Md5, Digest};
+use base16ct::upper::encode_string;
+
+/// A connection to last.fm.
+pub struct LastFmConnection(pub UserConnections, pub Config);
+
+impl LastFmConnection {
+    /// Create a legacy MD5 signature, since last.fm is old.
+    pub fn signature(params: HashMap<String, String>, secret: String) -> String {
+        let mut params_string = String::new();
+
+        let mut params = params.clone();
+        params.remove("format");
+
+        let mut x = params.iter().collect::<Vec<(&String, &String)>>();
+        x.sort_by(|a, b| a.0.cmp(b.0));
+
+        for param in x {
+            params_string.push_str(&format!("{}{}", param.0, param.1));
+        }
+
+        let mut hasher = Md5::new();
+        hasher.update(format!("{params_string}{secret}"));
+
+        let hash = hasher.finalize();
+        encode_string(&hash)
+    }
+
+    /// Create a new [`ExternalConnectionInfo`] for the connection.
+    pub fn connection() -> ExternalConnectionInfo {
+        ExternalConnectionInfo {
+            con_type: ConnectionType::Token,
+            data: HashMap::new(),
+            show_on_profile: true,
+        }
+    }
+}

crates/core/src/database/connections/mod.rs

@@ -1 +1,2 @@
+pub mod last_fm;
 pub mod spotify;