feat(dimentorin): admin sessions endpoint untuk backoffice (GET /admin/sessions, paginated + nama + feedback)

imphnen-dimentorin/src/sessions/application/session_query_service.rs

@@ -1,12 +1,14 @@
 use crate::sessions::domain::{
-	AvailabilitySlot, MentorAvailability, SessionDetail, SessionList, SessionListItem,
-	SessionRepository,
+	AdminSessionListItem, AvailabilitySlot, MentorAvailability, SessionDetail,
+	SessionList, SessionListItem, SessionRepository,
 };
 use chrono::{Duration, Utc};
 use imphnen_entities::seaorm::auth::mentors::{
 	Column as MentorColumn, Entity as MentorsEntity,
 };
+use imphnen_entities::seaorm::auth::users::{Column as UserColumn, Entity as UsersEntity};
 use imphnen_utils::AppError;
+use paginator_utils::PaginatorResponse;
 use sea_orm::{ColumnTrait, DatabaseConnection, EntityTrait, QueryFilter};
 use std::sync::Arc;
 use uuid::Uuid;
@@ -17,6 +19,89 @@ pub struct SessionQueryService {
 }
 
 impl SessionQueryService {
+	pub async fn get_admin_sessions(
+		&self,
+		page: u64,
+		per_page: u64,
+		status_filter: Option<String>,
+	) -> Result<PaginatorResponse<AdminSessionListItem>, AppError> {
+		use imphnen_entities::seaorm::auth::sessions::{
+			Column as SessionColumn, Entity as SessionsEntity,
+		};
+		use sea_orm::{Order, PaginatorTrait, QueryOrder};
+
+		let mut query = SessionsEntity::find().order_by(SessionColumn::CreatedAt, Order::Desc);
+		if let Some(status) = status_filter.as_deref() {
+			query = query.filter(SessionColumn::Status.eq(status));
+		}
+		let paginator = query.paginate(self.db.as_ref(), per_page);
+		let total = paginator.num_items().await?;
+		let models = paginator.fetch_page(page.saturating_sub(1)).await?;
+
+		// Resolve mentor/mentee names in one pass.
+		let mut user_ids = std::collections::HashSet::new();
+		for m in &models {
+			user_ids.insert(m.mentor_id);
+			user_ids.insert(m.mentee_id);
+		}
+		let users = if user_ids.is_empty() {
+			Vec::new()
+		} else {
+			UsersEntity::find()
+				.filter(UserColumn::Id.is_in(user_ids.iter().copied().collect::<Vec<_>>()))
+				.all(self.db.as_ref())
+				.await?
+		};
+		let name_by_id: std::collections::HashMap<Uuid, (Option<String>, String)> = users
+			.into_iter()
+			.map(|u| {
+				let fullname = u
+					.first_name
+					.clone()
+					.zip(u.last_name.clone())
+					.map(|(f, l)| format!("{} {}", f, l))
+					.or_else(|| u.first_name.clone())
+					.or_else(|| Some(u.username.clone()));
+				(u.id, (fullname, u.email))
+			})
+			.collect();
+
+		let data = models
+			.into_iter()
+			.map(|m| {
+				let (mentor_fullname, _) =
+					name_by_id.get(&m.mentor_id).cloned().unwrap_or_default();
+				let (mentee_fullname, mentee_email) =
+					name_by_id.get(&m.mentee_id).cloned().unwrap_or_default();
+				AdminSessionListItem {
+					id: m.id.to_string(),
+					mentor_id: m.mentor_id.to_string(),
+					mentor_fullname,
+					mentee_id: m.mentee_id.to_string(),
+					mentee_fullname,
+					mentee_email: Some(mentee_email),
+					topic: m.topic,
+					scheduled_at: m.scheduled_at.to_rfc3339(),
+					duration_minutes: m.duration_minutes,
+					meeting_link: m.meeting_link,
+					session_type: m.session_type,
+					status: m.status,
+					rating: m.rating,
+					feedback: m.feedback,
+					feedback_submitted_at: m
+						.feedback_submitted_at
+						.map(|dt| dt.to_rfc3339()),
+					created_at: m.created_at.to_rfc3339(),
+				}
+			})
+			.collect();
+
+		Ok(PaginatorResponse {
+			data,
+			meta: paginator_utils::PaginatorResponseMeta::new(page as u32, per_page as u32, total as u32),
+		})
+	}
+
 	pub async fn get_mentor_sessions(
 		&self,
 		mentor_id: String,

imphnen-dimentorin/src/sessions/application/session_service.rs

@@ -1,12 +1,14 @@
 use super::session_booking_service::SessionBookingService;
 use super::session_query_service::SessionQueryService;
 use crate::sessions::domain::{
-	BookSessionCommand, BookedSession, MentorAvailability, MentorStats,
-	SessionDetail, SessionFeedbackCommand, SessionFeedbackResult, SessionList,
-	SessionRepository, SessionService, UpdateSessionStatusCommand, UpdatedSessionStatus,
+	AdminSessionListItem, BookSessionCommand, BookedSession, MentorAvailability,
+	MentorStats, SessionDetail, SessionFeedbackCommand, SessionFeedbackResult,
+	SessionList, SessionRepository, SessionService, UpdateSessionStatusCommand,
+	UpdatedSessionStatus,
 };
 use async_trait::async_trait;
 use imphnen_utils::AppError;
+use paginator_utils::PaginatorResponse;
 use std::sync::Arc;
 
 pub struct SessionServiceImpl {
@@ -39,6 +41,17 @@ impl SessionService for SessionServiceImpl {
 		self.booking.book_session(mentor_id, user_id, cmd).await
 	}
 
+	async fn get_admin_sessions(
+		&self,
+		page: u64,
+		per_page: u64,
+		status_filter: Option<String>,
+	) -> Result<PaginatorResponse<AdminSessionListItem>, AppError> {
+		self.query
+			.get_admin_sessions(page, per_page, status_filter)
+			.await
+	}
+
 	async fn get_mentor_sessions(
 		&self,
 		mentor_id: String,

imphnen-dimentorin/src/sessions/domain/mod.rs

@@ -7,7 +7,8 @@ pub use repository::SessionRepository;
 pub use service::SessionService;
 pub use session::SessionEntity;
 pub use session_types::{
-	AvailabilitySlot, BookSessionCommand, BookedSession, MentorAvailability,
-	MentorStats, SessionDetail, SessionFeedbackCommand, SessionFeedbackResult,
-	SessionList, SessionListItem, UpdateSessionStatusCommand, UpdatedSessionStatus,
+	AdminSessionListItem, AvailabilitySlot, BookSessionCommand, BookedSession,
+	MentorAvailability, MentorStats, SessionDetail, SessionFeedbackCommand,
+	SessionFeedbackResult, SessionList, SessionListItem, UpdateSessionStatusCommand,
+	UpdatedSessionStatus,
 };

imphnen-dimentorin/src/sessions/domain/service.rs

@@ -1,10 +1,11 @@
 use super::session_types::{
-	BookSessionCommand, BookedSession, MentorAvailability, MentorStats,
-	SessionDetail, SessionFeedbackCommand, SessionFeedbackResult, SessionList,
-	UpdateSessionStatusCommand, UpdatedSessionStatus,
+	AdminSessionListItem, BookSessionCommand, BookedSession, MentorAvailability,
+	MentorStats, SessionDetail, SessionFeedbackCommand, SessionFeedbackResult,
+	SessionList, UpdateSessionStatusCommand, UpdatedSessionStatus,
 };
 use async_trait::async_trait;
 use imphnen_utils::AppError;
+use paginator_utils::PaginatorResponse;
 
 #[async_trait]
 pub trait SessionService: Send + Sync {
@@ -15,6 +16,15 @@ pub trait SessionService: Send + Sync {
 		cmd: BookSessionCommand,
 	) -> Result<BookedSession, AppError>;
 
+	/// Admin: list ALL sessions across every mentor/mentee, paginated,
+	/// with resolved names + feedback. Guards on Administrator permission.
+	async fn get_admin_sessions(
+		&self,
+		page: u64,
+		per_page: u64,
+		status_filter: Option<String>,
+	) -> Result<PaginatorResponse<AdminSessionListItem>, AppError>;
+
 	async fn get_mentor_sessions(
 		&self,
 		mentor_id: String,

imphnen-dimentorin/src/sessions/domain/session_types.rs

@@ -39,6 +39,29 @@ pub struct SessionList {
 	pub total: usize,
 }
 
+/// Admin backoffice view of a session: enriches the list item with
+/// mentor/mentee names, meeting link, and feedback so one endpoint
+/// powers Session Management, Feedback & Review, and the dashboard.
+#[derive(Clone, Debug, serde::Serialize, serde::Deserialize)]
+pub struct AdminSessionListItem {
+	pub id: String,
+	pub mentor_id: String,
+	pub mentor_fullname: Option<String>,
+	pub mentee_id: String,
+	pub mentee_fullname: Option<String>,
+	pub mentee_email: Option<String>,
+	pub topic: String,
+	pub scheduled_at: String,
+	pub duration_minutes: i32,
+	pub meeting_link: Option<String>,
+	pub session_type: String,
+	pub status: String,
+	pub rating: Option<i32>,
+	pub feedback: Option<String>,
+	pub feedback_submitted_at: Option<String>,
+	pub created_at: String,
+}
+
 pub struct SessionDetail {
 	pub id: String,
 	pub mentor_id: String,

imphnen-dimentorin/src/sessions/infrastructure/http/dto/mod.rs

@@ -5,8 +5,8 @@ pub use request::{
 	BookSessionRequestDto, SessionFeedbackRequestDto, UpdateSessionStatusRequestDto,
 };
 pub use response::{
-	AvailabilitySlotDto, BookSessionResponseDto, MentorAvailabilityDto,
-	MentorStatsDto, SessionDetailDto, SessionFeedbackResponseDto,
-	SessionListItemDto, SessionListResponseDto,
+	AdminSessionListItemDto, AvailabilitySlotDto, BookSessionResponseDto,
+	MentorAvailabilityDto, MentorStatsDto, SessionDetailDto,
+	SessionFeedbackResponseDto, SessionListItemDto, SessionListResponseDto,
 	UpdateSessionStatusResponseDto,
 };

imphnen-dimentorin/src/sessions/infrastructure/http/dto/response.rs

@@ -1,6 +1,7 @@
 use crate::sessions::domain::{
-	AvailabilitySlot, BookedSession, MentorAvailability, MentorStats, SessionDetail,
-	SessionFeedbackResult, SessionList, SessionListItem, UpdatedSessionStatus,
+	AdminSessionListItem, AvailabilitySlot, BookedSession, MentorAvailability,
+	MentorStats, SessionDetail, SessionFeedbackResult, SessionList, SessionListItem,
+	UpdatedSessionStatus,
 };
 use serde::{Deserialize, Serialize};
 use utoipa::ToSchema;
@@ -229,3 +230,46 @@ impl From<SessionFeedbackResult> for SessionFeedbackResponseDto {
 		}
 	}
 }
+
+#[derive(Clone, Debug, Serialize, Deserialize, ToSchema)]
+pub struct AdminSessionListItemDto {
+	pub id: String,
+	pub mentor_id: String,
+	pub mentor_fullname: Option<String>,
+	pub mentee_id: String,
+	pub mentee_fullname: Option<String>,
+	pub mentee_email: Option<String>,
+	pub topic: String,
+	pub scheduled_at: String,
+	pub duration_minutes: i32,
+	pub meeting_link: Option<String>,
+	pub session_type: String,
+	pub status: String,
+	pub rating: Option<i32>,
+	pub feedback: Option<String>,
+	pub feedback_submitted_at: Option<String>,
+	pub created_at: String,
+}
+
+impl From<AdminSessionListItem> for AdminSessionListItemDto {
+	fn from(s: AdminSessionListItem) -> Self {
+		Self {
+			id: s.id,
+			mentor_id: s.mentor_id,
+			mentor_fullname: s.mentor_fullname,
+			mentee_id: s.mentee_id,
+			mentee_fullname: s.mentee_fullname,
+			mentee_email: s.mentee_email,
+			topic: s.topic,
+			scheduled_at: s.scheduled_at,
+			duration_minutes: s.duration_minutes,
+			meeting_link: s.meeting_link,
+			session_type: s.session_type,
+			status: s.status,
+			rating: s.rating,
+			feedback: s.feedback,
+			feedback_submitted_at: s.feedback_submitted_at,
+			created_at: s.created_at,
+		}
+	}
+}

imphnen-dimentorin/src/sessions/infrastructure/http/handlers/mod.rs

@@ -5,5 +5,6 @@ pub use mutation_handlers::{
 	post_book_session, post_submit_feedback, put_update_session_status,
 };
 pub use query_handlers::{
-	get_mentor_availability, get_mentor_sessions, get_mentor_stats, get_my_sessions,
+	get_admin_sessions, get_mentor_availability, get_mentor_sessions, get_mentor_stats,
+	get_my_sessions,
 };

imphnen-dimentorin/src/sessions/infrastructure/http/handlers/query_handlers.rs

@@ -1,4 +1,4 @@
-use super::super::dto::{MentorAvailabilityDto, MentorStatsDto, SessionListResponseDto};
+use super::super::dto::{AdminSessionListItemDto, MentorAvailabilityDto, MentorStatsDto, SessionListResponseDto};
 use crate::sessions::domain::SessionService;
 use axum::{
 	extract::{Extension, Path, Query},
@@ -8,6 +8,7 @@ use axum::{
 use imphnen_libs::decode_access_token;
 use imphnen_utils::AppError;
 use imphnen_utils::{ApiSuccess, extract_email};
+use paginator_axum::PaginationQuery;
 use serde::Deserialize;
 use std::sync::Arc;
 
@@ -118,3 +119,41 @@ pub async fn get_my_sessions(
 	);
 	Ok(ApiSuccess(resp))
 }
+
+#[utoipa::path(
+    get,
+    path = "/v1/dimentorin/admin/sessions",
+    tag = "sessions",
+    security(("Bearer" = [])),
+    params(
+        ("page" = Option<u64>, Query, description = "Page number"),
+        ("per_page" = Option<u64>, Query, description = "Items per page"),
+        ("status" = Option<String>, Query, description = "Filter by status"),
+    ),
+    responses(
+        (status = 200, description = "All sessions (admin) retrieved successfully", body = AdminSessionListItemDto),
+        (status = 401, description = "Unauthorized"),
+        (status = 403, description = "Forbidden"),
+    )
+)]
+pub async fn get_admin_sessions(
+	headers: HeaderMap,
+	Extension(state): Extension<imphnen_libs::AppState>,
+	Extension(service): Extension<Arc<dyn SessionService>>,
+	PaginationQuery(params): PaginationQuery,
+	Query(filter): Query<SessionStatusFilter>,
+) -> Result<impl IntoResponse, AppError> {
+	imphnen_iam::require_permissions!(
+		headers,
+		state,
+		[imphnen_entities::PermissionsEnum::Administrator],
+		{
+			let page = u64::from(params.page.max(1));
+			let per_page = u64::from(params.per_page.clamp(1, 100));
+			let resp = service
+				.get_admin_sessions(page, per_page, filter.status)
+				.await?;
+			Ok(imphnen_utils::ApiPaginated(resp))
+		}
+	)
+}

imphnen-dimentorin/src/sessions/infrastructure/http/routes.rs

@@ -1,7 +1,6 @@
 use super::handlers::{
-	get_mentor_availability, get_mentor_sessions, get_mentor_stats,
-	get_my_sessions, post_book_session, post_submit_feedback,
-	put_update_session_status,
+	get_admin_sessions, get_mentor_availability, get_mentor_sessions, get_mentor_stats,
+	get_my_sessions, post_book_session, post_submit_feedback, put_update_session_status,
 };
 use crate::sessions::application::SessionServiceImpl;
 use crate::sessions::domain::SessionService;
@@ -42,6 +41,7 @@ pub fn sessions_protected_routes(
 		)
 		.route("/sessions/{id}/feedback/create", post(post_submit_feedback))
 		.route("/sessions/me", get(get_my_sessions))
+		.route("/admin/sessions", get(get_admin_sessions))
 		.layer(Extension(service))
 		.layer(Extension((*state).clone()))
 }