Get token (#8)

Reviewed-on: #8

src/service/core.rs

@@ -0,0 +1,29 @@
+pub struct Service {
+    pub app: crate::app::App,
+    pub token: textsender_models::token::Login,
+}
+
+impl Service {
+    pub async fn do_the_work(&mut self) {
+        println!("Do some work");
+        todo!(
+            r#"
+        Need to finish this
+
+        This function should fetch a token, check if the token is valid, and obtain a refresh token if
+        it has expired.
+
+        Then do the real work.
+
+        1. Check the queue
+        2. If there is an item, get the data, 
+        3. Evaluate if it is schedulable
+        4. Get the events and iterate each one
+        5. starting with the message
+        6. Get the contact
+        7. Send the message
+        8. Record the message event response
+            "#
+        );
+    }
+}

src/service/mod.rs

@@ -0,0 +1,120 @@
+pub mod core;
+
+pub mod auth {
+    pub struct Auth {
+        pub app: crate::app::App,
+    }
+
+    impl Auth {
+        pub async fn get_token(&self) -> Result<textsender_models::token::Login, std::io::Error> {
+            let client = reqwest::Client::new();
+            let endpoint = String::from("api/v1/service/login");
+            let api_url = format!("{}/{endpoint}", self.app.auth_url);
+
+            println!("Url: {api_url:?}");
+
+            let payload = serde_json::json!({
+                "username": &self.app.service_username,
+                "passphrase": &self.app.service_passphrase,
+            });
+
+            println!("Payload: {payload:?}");
+
+            match client.post(api_url).json(&payload).send().await {
+                Ok(response) => match response.status() {
+                    reqwest::StatusCode::OK => {
+                        println!("Response: {response:?}");
+                        match response.text().await {
+                            Ok(val) => match parse_token_response(&val).await {
+                                Ok(login_result) => Ok(login_result),
+                                Err(err) => Err(err),
+                            },
+                            Err(err) => Err(std::io::Error::other(err)),
+                        }
+                    }
+                    _ => Err(std::io::Error::other("Error getting token")),
+                },
+                Err(err) => Err(std::io::Error::other(err.to_string())),
+            }
+        }
+
+        pub async fn get_refresh_token(
+            &self,
+            login_result: &textsender_models::token::Login,
+        ) -> Result<textsender_models::token::Login, std::io::Error> {
+            let client = reqwest::Client::new();
+            let endpoint = String::from("api/v1/token/refresh");
+            let api_url = format!("{}/{endpoint}", self.app.auth_url);
+
+            println!("Url: {api_url:?}");
+
+            let payload = serde_json::json!({
+                "access_token": login_result.access_token
+            });
+
+            match client.post(api_url).json(&payload).send().await {
+                Ok(response) => match response.status() {
+                    reqwest::StatusCode::OK => {
+                        println!("Response: {response:?}");
+                        match response.text().await {
+                            Ok(val) => match parse_token_response(&val).await {
+                                Ok(login_result) => Ok(login_result),
+                                Err(err) => Err(err),
+                            },
+                            Err(err) => Err(std::io::Error::other(err)),
+                        }
+                    }
+                    _ => Err(std::io::Error::other("Error getting token")),
+                },
+                Err(err) => Err(std::io::Error::other(err.to_string())),
+            }
+        }
+    }
+
+    async fn parse_token_response(
+        response: &String,
+    ) -> Result<textsender_models::token::LoginResult, std::io::Error> {
+        match serde_json::from_str::<serde_json::Value>(response) {
+            Ok(j) => {
+                println!("Good");
+                let message = &j["message"];
+                let data = &j["data"];
+
+                println!("Message: {message:?}");
+                println!("Data: {data:?}");
+                match j.get("data") {
+                    Some(serde_json::Value::Array(lrs)) => {
+                        if lrs.is_empty() {
+                            Err(std::io::Error::other("Error response is empty"))
+                        } else {
+                            let lr = lrs[0].clone();
+                            let ll: textsender_models::token::LoginResult =
+                                match serde_json::from_value(lr) {
+                                    Ok(lr) => lr,
+                                    Err(err) => {
+                                        return Err(std::io::Error::other(err.to_string()));
+                                    }
+                                };
+                            Ok(ll)
+                        }
+                    }
+                    _ => Err(std::io::Error::other("Error parsing response")),
+                }
+            }
+            Err(err) => Err(std::io::Error::other(err.to_string())),
+        }
+    }
+
+    pub async fn has_token_expired(token: &textsender_models::token::LoginResult) -> bool {
+        let now = time::OffsetDateTime::now_utc();
+        let expire = match time::OffsetDateTime::from_unix_timestamp(token.expires_in) {
+            Ok(res) => res,
+            Err(err) => {
+                eprintln!("Error: {err:?}");
+                return false;
+            }
+        };
+
+        now > expire
+    }
+}