Refreshable connections, refactoring, access-token endpoint

- Aded /users/@me/connections/:connection_name/:connection_id/access-token
- Replaced `access_token` property on ConnectedAccount with `token_data` object for refreshing tokens
- Made a common interface for connection things like ComonOAuthTokenResponse
- Added `RefreshableConnection` class
- Added token refresh to Spotify connection (disabled)

2 files changed, 19 insertions, 2 deletions

diff --git a/src/util/interfaces/ConnectedAccount.ts b/src/util/interfaces/ConnectedAccount.ts
new file mode 100644
index 00000000..c96e5f79
--- /dev/null
+++ b/src/util/interfaces/ConnectedAccount.ts
@@ -0,0 +1,16 @@
+export interface ConnectedAccountCommonOAuthTokenResponse {
+	access_token: string;
+	token_type: string;
+	scope: string;
+	refresh_token?: string;
+	expires_in?: number;
+}
+
+export interface ConnectedAccountTokenData {
+	access_token: string;
+	token_type?: string;
+	scope?: string;
+	refresh_token?: string;
+	expires_in?: number;
+	expires_at?: number;
+}
diff --git a/src/util/interfaces/index.ts b/src/util/interfaces/index.ts
index fa259ce1..e194d174 100644
--- a/src/util/interfaces/index.ts
+++ b/src/util/interfaces/index.ts
@@ -17,7 +17,8 @@
 */
 
 export * from "./Activity";
-export * from "./Presence";
-export * from "./Interaction";
+export * from "./ConnectedAccount";
 export * from "./Event";
+export * from "./Interaction";
+export * from "./Presence";
 export * from "./Status";