feat: merge config

3 files changed, 64 insertions, 11 deletions

diff --git a/lib/auth-service/Cargo.toml b/lib/auth-service/Cargo.toml
index 147c2fa..8efdc57 100644
--- a/lib/auth-service/Cargo.toml
+++ b/lib/auth-service/Cargo.toml
@@ -7,5 +7,8 @@ readme.workspace = true
 documentation.workspace = true
 
 [dependencies]
+secrecy = "0.10.3"
 oauth2 = "5.0.0"
 thiserror.workspace = true
+tracing.workspace = true
+url = { workspace = true, features = ["serde"] }
diff --git a/lib/auth-service/src/client/mod.rs b/lib/auth-service/src/client/mod.rs
new file mode 100644
index 0000000..25cf16c
--- /dev/null
+++ b/lib/auth-service/src/client/mod.rs
@@ -0,0 +1,49 @@
+use oauth2::{AuthUrl, ClientId, ClientSecret, EndpointNotSet, EndpointSet, RedirectUrl, TokenUrl};
+use secrecy::{ExposeSecret, SecretString};
+use tracing::debug;
+use url::Url;
+
+use crate::AuthServiceError;
+
+pub struct OauthClient(
+    oauth2::basic::BasicClient<
+        EndpointSet,
+        EndpointNotSet,
+        EndpointNotSet,
+        EndpointNotSet,
+        EndpointSet,
+    >,
+);
+
+pub struct ClientConfig {
+    client_id: String,
+    client_secret: SecretString,
+    token_url: Url,
+    auth_url: Url,
+}
+
+impl TryFrom<ClientConfig> for OauthClient {
+    type Error = AuthServiceError;
+
+    fn try_from(value: ClientConfig) -> Result<Self, Self::Error> {
+        debug!("creating oauth client");
+        Ok(Self(
+            oauth2::basic::BasicClient::new(ClientId::new(value.client_id))
+                .set_client_secret(ClientSecret::new(
+                    value.client_secret.expose_secret().to_string(),
+                ))
+                .set_auth_uri(AuthUrl::from_url(value.auth_url))
+                .set_token_uri(TokenUrl::from_url(value.token_url)),
+        ))
+    }
+}
+
+impl OauthClient {
+    #[must_use]
+    pub fn with_redirect_url(self, url: &Url) -> Self {
+        Self(
+            self.0
+                .set_redirect_uri(RedirectUrl::from_url(url.to_owned())),
+        )
+    }
+}
diff --git a/lib/auth-service/src/lib.rs b/lib/auth-service/src/lib.rs
index b93cf3f..f7b9e80 100644
--- a/lib/auth-service/src/lib.rs
+++ b/lib/auth-service/src/lib.rs
@@ -1,14 +1,15 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
-}
+pub mod client;
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+use thiserror::Error;
 
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
+#[derive(Error, Debug)]
+pub enum AuthServiceError {
+    #[error("invalid url provided")]
+    InvalidUrl(#[from] url::ParseError),
+    #[error("the data for key `{0}` is not available")]
+    Redaction(String),
+    #[error("invalid header (expected {expected:?}, found {found:?})")]
+    InvalidHeader { expected: String, found: String },
+    #[error("unknown data store error")]
+    Unknown,
 }