From 32c266e3663a978e0105dbc9d6280b8524ae7ed7 Mon Sep 17 00:00:00 2001
From: Sebastian Pravda <sebastian.pravda@gmail.com>
Date: Tue, 25 Oct 2022 17:35:03 +0200
Subject: [PATCH] feat: user login service

---
 core/src/lib.rs                        |  1 +
 core/src/services/candidate_service.rs | 28 ++++++++++++++++++++++++++
 core/src/services/mod.rs               |  1 +
 core/src/token/candidate_token.rs      | 13 ++++++++++++
 entity/src/mod.rs                      |  8 ++++++++
 5 files changed, 51 insertions(+)
 create mode 100644 core/src/services/candidate_service.rs
 create mode 100644 core/src/services/mod.rs
 create mode 100644 entity/src/mod.rs

diff --git a/core/src/lib.rs b/core/src/lib.rs
index 4f820ca..942af37 100644
--- a/core/src/lib.rs
+++ b/core/src/lib.rs
@@ -2,6 +2,7 @@ mod mutation;
 mod query;
 pub mod crypto;
 pub mod token;
+pub mod services;
 
 pub use mutation::*;
 pub use query::*;
diff --git a/core/src/services/candidate_service.rs b/core/src/services/candidate_service.rs
new file mode 100644
index 0000000..dffb5ba
--- /dev/null
+++ b/core/src/services/candidate_service.rs
@@ -0,0 +1,28 @@
+use jsonwebtoken::{Header, EncodingKey};
+use sea_orm::DatabaseConnection;
+
+use crate::{crypto, Query, token::candidate_token::CandidateToken};
+
+pub async fn login(db: &DatabaseConnection, id: i32, password: String) -> Option<String> {
+    let candidate = Query::find_candidate_by_id(db, id).await
+        .unwrap()
+        .unwrap();
+
+    
+    let valid = crypto::verify_password(&password,&candidate.code )
+        .expect("Invalid password");
+    
+    if !valid {
+        return None;
+    }
+    let payload = CandidateToken::generate(candidate.name.unwrap(),
+        candidate.surname.unwrap());
+
+    let jwt = jsonwebtoken::encode(
+        &Header::default(), 
+    &payload,
+        &EncodingKey::from_secret(&[0])
+    ).ok();
+    jwt
+}
+
diff --git a/core/src/services/mod.rs b/core/src/services/mod.rs
new file mode 100644
index 0000000..1992ce2
--- /dev/null
+++ b/core/src/services/mod.rs
@@ -0,0 +1 @@
+pub mod candidate_service;
\ No newline at end of file
diff --git a/core/src/token/candidate_token.rs b/core/src/token/candidate_token.rs
index 5a43493..7c5a973 100644
--- a/core/src/token/candidate_token.rs
+++ b/core/src/token/candidate_token.rs
@@ -1,3 +1,4 @@
+use chrono::Utc;
 use serde::{Serialize, Deserialize};
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -8,4 +9,16 @@ pub struct CandidateToken {
     pub exp: i64,
     pub name: String,
     pub surname: String,
+}
+
+impl CandidateToken {
+    pub fn generate(name: String, surname: String) -> Self {
+        let now = Utc::now().timestamp();
+        CandidateToken {
+            iat: now,
+            exp: now + 60 * 60, // 1 hour for now
+            name,
+            surname,
+        }
+    }
 }
\ No newline at end of file
diff --git a/entity/src/mod.rs b/entity/src/mod.rs
new file mode 100644
index 0000000..63cf621
--- /dev/null
+++ b/entity/src/mod.rs
@@ -0,0 +1,8 @@
+//! SeaORM Entity. Generated by sea-orm-codegen 0.9.3
+
+pub mod prelude;
+
+pub mod admin;
+pub mod candidate;
+pub mod parent;
+pub mod session;