1 files changed, 486 insertions, 0 deletions
diff --git a/src/api/admin/api.rs b/src/api/admin/api.rs
new file mode 100644
index 00000000..a2dc95c2
--- /dev/null
+++ b/src/api/admin/api.rs
@@ -0,0 +1,486 @@
+use std::net::SocketAddr;
+
+use serde::{Deserialize, Serialize};
+
+use crate::helpers::is_default;
+
+pub enum AdminApiRequest {
+	// Cluster operations
+	GetClusterStatus(GetClusterStatusRequest),
+	GetClusterHealth(GetClusterHealthRequest),
+	ConnectClusterNodes(ConnectClusterNodesRequest),
+	GetClusterLayout(GetClusterLayoutRequest),
+	UpdateClusterLayout(UpdateClusterLayoutRequest),
+	ApplyClusterLayout(ApplyClusterLayoutRequest),
+	RevertClusterLayout(RevertClusterLayoutRequest),
+}
+
+pub enum AdminApiResponse {
+	// Cluster operations
+	GetClusterStatus(GetClusterStatusResponse),
+	GetClusterHealth(GetClusterHealthResponse),
+	ConnectClusterNodes(ConnectClusterNodesResponse),
+	GetClusterLayout(GetClusterLayoutResponse),
+	UpdateClusterLayout(UpdateClusterLayoutResponse),
+	ApplyClusterLayout(ApplyClusterLayoutResponse),
+	RevertClusterLayout(RevertClusterLayoutResponse),
+}
+
+// **********************************************
+//      Metrics-related endpoints
+// **********************************************
+
+// TODO: do we want this here ??
+
+// ---- Metrics ----
+
+pub struct MetricsRequest;
+
+// ---- Health ----
+
+pub struct HealthRequest;
+
+// **********************************************
+//      Cluster operations
+// **********************************************
+
+// ---- GetClusterStatus ----
+
+pub struct GetClusterStatusRequest;
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetClusterStatusResponse {
+	pub node: String,
+	pub garage_version: &'static str,
+	pub garage_features: Option<&'static [&'static str]>,
+	pub rust_version: &'static str,
+	pub db_engine: String,
+	pub layout_version: u64,
+	pub nodes: Vec<NodeResp>,
+}
+
+#[derive(Serialize, Default)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeResp {
+	pub id: String,
+	pub role: Option<NodeRoleResp>,
+	pub addr: Option<SocketAddr>,
+	pub hostname: Option<String>,
+	pub is_up: bool,
+	pub last_seen_secs_ago: Option<u64>,
+	pub draining: bool,
+	#[serde(skip_serializing_if = "Option::is_none")]
+	pub data_partition: Option<FreeSpaceResp>,
+	#[serde(skip_serializing_if = "Option::is_none")]
+	pub metadata_partition: Option<FreeSpaceResp>,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeRoleResp {
+	pub id: String,
+	pub zone: String,
+	pub capacity: Option<u64>,
+	pub tags: Vec<String>,
+}
+
+#[derive(Serialize, Default)]
+#[serde(rename_all = "camelCase")]
+pub struct FreeSpaceResp {
+	pub available: u64,
+	pub total: u64,
+}
+
+// ---- GetClusterHealth ----
+
+pub struct GetClusterHealthRequest;
+
+#[derive(Debug, Clone, Copy, Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetClusterHealthResponse {
+	pub status: &'static str,
+	pub known_nodes: usize,
+	pub connected_nodes: usize,
+	pub storage_nodes: usize,
+	pub storage_nodes_ok: usize,
+	pub partitions: usize,
+	pub partitions_quorum: usize,
+	pub partitions_all_ok: usize,
+}
+
+// ---- ConnectClusterNodes ----
+
+#[derive(Debug, Clone, Deserialize)]
+pub struct ConnectClusterNodesRequest(pub Vec<String>);
+
+#[derive(Serialize)]
+pub struct ConnectClusterNodesResponse(pub Vec<ConnectClusterNodeResponse>);
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ConnectClusterNodeResponse {
+	pub success: bool,
+	pub error: Option<String>,
+}
+
+// ---- GetClusterLayout ----
+
+pub struct GetClusterLayoutRequest;
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetClusterLayoutResponse {
+	pub version: u64,
+	pub roles: Vec<NodeRoleResp>,
+	pub staged_role_changes: Vec<NodeRoleChange>,
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct NodeRoleChange {
+	pub id: String,
+	#[serde(flatten)]
+	pub action: NodeRoleChangeEnum,
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(untagged)]
+pub enum NodeRoleChangeEnum {
+	#[serde(rename_all = "camelCase")]
+	Remove { remove: bool },
+	#[serde(rename_all = "camelCase")]
+	Update {
+		zone: String,
+		capacity: Option<u64>,
+		tags: Vec<String>,
+	},
+}
+
+// ---- UpdateClusterLayout ----
+
+#[derive(Deserialize)]
+pub struct UpdateClusterLayoutRequest(pub Vec<NodeRoleChange>);
+
+#[derive(Serialize)]
+pub struct UpdateClusterLayoutResponse(pub GetClusterLayoutResponse);
+
+// ---- ApplyClusterLayout ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ApplyClusterLayoutRequest {
+	pub version: u64,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ApplyClusterLayoutResponse {
+	pub message: Vec<String>,
+	pub layout: GetClusterLayoutResponse,
+}
+
+// ---- RevertClusterLayout ----
+
+pub struct RevertClusterLayoutRequest;
+
+#[derive(Serialize)]
+pub struct RevertClusterLayoutResponse(pub GetClusterLayoutResponse);
+
+// **********************************************
+//      Access key operations
+// **********************************************
+
+// ---- ListKeys ----
+
+pub struct ListKeysRequest;
+
+#[derive(Serialize)]
+pub struct ListKeysResponse(pub Vec<ListKeysResponseItem>);
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ListKeysResponseItem {
+	pub id: String,
+	pub name: String,
+}
+
+// ---- GetKeyInfo ----
+
+pub struct GetKeyInfoRequest {
+	pub id: Option<String>,
+	pub search: Option<String>,
+	pub show_secret_key: bool,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetKeyInfoResponse {
+	pub name: String,
+	pub access_key_id: String,
+	#[serde(skip_serializing_if = "is_default")]
+	pub secret_access_key: Option<String>,
+	pub permissions: KeyPerm,
+	pub buckets: Vec<KeyInfoBucketResponse>,
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct KeyPerm {
+	#[serde(default)]
+	pub create_bucket: bool,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct KeyInfoBucketResponse {
+	pub id: String,
+	pub global_aliases: Vec<String>,
+	pub local_aliases: Vec<String>,
+	pub permissions: ApiBucketKeyPerm,
+}
+
+#[derive(Serialize, Deserialize, Default)]
+#[serde(rename_all = "camelCase")]
+pub struct ApiBucketKeyPerm {
+	#[serde(default)]
+	pub read: bool,
+	#[serde(default)]
+	pub write: bool,
+	#[serde(default)]
+	pub owner: bool,
+}
+
+// ---- CreateKey ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateKeyRequest {
+	pub name: Option<String>,
+}
+
+#[derive(Serialize)]
+pub struct CreateKeyResponse(pub GetKeyInfoResponse);
+
+// ---- ImportKey ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ImportKeyRequest {
+	pub access_key_id: String,
+	pub secret_access_key: String,
+	pub name: Option<String>,
+}
+
+#[derive(Serialize)]
+pub struct ImportKeyResponse(pub GetKeyInfoResponse);
+
+// ---- UpdateKey ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateKeyRequest {
+	// TODO: id (get parameter) goes here
+	pub name: Option<String>,
+	pub allow: Option<KeyPerm>,
+	pub deny: Option<KeyPerm>,
+}
+
+#[derive(Serialize)]
+pub struct UpdateKeyResponse(pub GetKeyInfoResponse);
+
+// ---- DeleteKey ----
+
+pub struct DeleteKeyRequest {
+	pub id: String,
+}
+
+pub struct DeleteKeyResponse;
+
+// **********************************************
+//      Bucket operations
+// **********************************************
+
+// ---- ListBuckets ----
+
+pub struct ListBucketsRequest;
+
+pub struct ListBucketsResponse(pub Vec<ListBucketsResponseItem>);
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ListBucketsResponseItem {
+	pub id: String,
+	pub global_aliases: Vec<String>,
+	pub local_aliases: Vec<BucketLocalAlias>,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct BucketLocalAlias {
+	pub access_key_id: String,
+	pub alias: String,
+}
+
+// ---- GetBucketInfo ----
+
+pub struct GetBucketInfoRequest {
+	pub id: Option<String>,
+	pub global_alias: Option<String>,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetBucketInfoResponse {
+	pub id: String,
+	pub global_aliases: Vec<String>,
+	pub website_access: bool,
+	#[serde(default)]
+	pub website_config: Option<GetBucketInfoWebsiteResponse>,
+	pub keys: Vec<GetBucketInfoKey>,
+	pub objects: i64,
+	pub bytes: i64,
+	pub unfinished_uploads: i64,
+	pub unfinished_multipart_uploads: i64,
+	pub unfinished_multipart_upload_parts: i64,
+	pub unfinished_multipart_upload_bytes: i64,
+	pub quotas: ApiBucketQuotas,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetBucketInfoWebsiteResponse {
+	pub index_document: String,
+	pub error_document: Option<String>,
+}
+
+#[derive(Serialize)]
+#[serde(rename_all = "camelCase")]
+pub struct GetBucketInfoKey {
+	pub access_key_id: String,
+	pub name: String,
+	pub permissions: ApiBucketKeyPerm,
+	pub bucket_local_aliases: Vec<String>,
+}
+
+#[derive(Serialize, Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct ApiBucketQuotas {
+	pub max_size: Option<u64>,
+	pub max_objects: Option<u64>,
+}
+
+// ---- CreateBucket ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateBucketRequest {
+	pub global_alias: Option<String>,
+	pub local_alias: Option<CreateBucketLocalAlias>,
+}
+
+#[derive(Serialize)]
+pub struct CreateBucketResponse(GetBucketInfoResponse);
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct CreateBucketLocalAlias {
+	pub access_key_id: String,
+	pub alias: String,
+	#[serde(default)]
+	pub allow: ApiBucketKeyPerm,
+}
+
+// ---- UpdateBucket ----
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateBucketRequest {
+	pub website_access: Option<UpdateBucketWebsiteAccess>,
+	pub quotas: Option<ApiBucketQuotas>,
+}
+
+#[derive(Serialize)]
+pub struct UpdateBucketResponse(GetBucketInfoResponse);
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct UpdateBucketWebsiteAccess {
+	pub enabled: bool,
+	pub index_document: Option<String>,
+	pub error_document: Option<String>,
+}
+
+// ---- DeleteBucket ----
+
+pub struct DeleteBucketRequest {
+	pub id: String,
+}
+
+pub struct DeleteBucketResponse;
+
+// **********************************************
+//      Operations on permissions for keys on buckets
+// **********************************************
+
+// ---- BucketAllowKey ----
+
+pub struct BucketAllowKeyRequest(pub BucketKeyPermChangeRequest);
+
+pub struct BucketAllowKeyResponse;
+
+#[derive(Deserialize)]
+#[serde(rename_all = "camelCase")]
+pub struct BucketKeyPermChangeRequest {
+	pub bucket_id: String,
+	pub access_key_id: String,
+	pub permissions: ApiBucketKeyPerm,
+}
+
+// ---- BucketDenyKey ----
+
+pub struct BucketDenyKeyRequest(pub BucketKeyPermChangeRequest);
+
+pub struct BucketDenyKeyResponse;
+
+// **********************************************
+//      Operations on bucket aliases
+// **********************************************
+
+// ---- GlobalAliasBucket ----
+
+pub struct GlobalAliasBucketRequest {
+	pub id: String,
+	pub alias: String,
+}
+
+pub struct GlobalAliasBucketReponse;
+
+// ---- GlobalUnaliasBucket ----
+
+pub struct GlobalUnaliasBucketRequest {
+	pub id: String,
+	pub alias: String,
+}
+
+pub struct GlobalUnaliasBucketReponse;
+
+// ---- LocalAliasBucket ----
+
+pub struct LocalAliasBucketRequest {
+	pub id: String,
+	pub access_key_id: String,
+	pub alias: String,
+}
+
+pub struct LocalAliasBucketReponse;
+
+// ---- LocalUnaliasBucket ----
+
+pub struct LocalUnaliasBucketRequest {
+	pub id: String,
+	pub access_key_id: String,
+	pub alias: String,
+}
+
+pub struct LocalUnaliasBucketReponse;