Get queue item (#9)

Reviewed-on: #9

src/app.rs

@@ -46,7 +46,7 @@ pub async fn load_app() -> Result<App, std::io::Error> {
                 auth_url: envs[1].value.clone(),
                 service_username: envs[2].value.clone(),
                 service_passphrase: envs[3].value.clone(),
-                twilio_config: twilio_config,
+                twilio_config,
             }),
             Err(err) => Err(err),
         }

src/main.rs

@@ -30,7 +30,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     let mut svc = catapult::service::core::Service {
         app: app.clone(),
-        token: token,
+        token,
     };
 
     loop {

src/service/core.rs

@@ -6,17 +6,41 @@ pub struct Service {
 impl Service {
     pub async fn do_the_work(&mut self) {
         println!("Do some work");
+        println!("Checking queue");
+
+        use textsender_models::message::scheduling::ScheduledMessage;
+
+        let queue = super::queue::Queue {
+            app: self.app.clone(),
+            token: self.token.clone(),
+        };
+        let queue_item: Option<ScheduledMessage> = match queue.get_queue().await {
+            Ok(item) => Some(item),
+            Err(err) => {
+                eprintln!("Error: {err:?}");
+                None
+            }
+        };
+
+        if queue_item.is_none() {
+            println!("No queue item found");
+            return;
+        }
+        let queue_item = queue_item.unwrap();
+
+        println!("Queue item Id: {:?}", queue_item.id);
+
         todo!(
             r#"
         Need to finish this
 
-        This function should fetch a token, check if the token is valid, and obtain a refresh token if
+        [X] - 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
+        1. Check the queue - Done
-        2. If there is an item, get the data, 
+        2. If there is an item, get the data - Done
         3. Evaluate if it is schedulable
         4. Get the events and iterate each one
         5. starting with the message

src/service/mod.rs

@@ -1,4 +1,5 @@
 pub mod core;
+pub mod queue;
 
 pub mod auth {
     pub struct Auth {
@@ -72,7 +73,7 @@ pub mod auth {
     }
 
     async fn parse_token_response(
-        response: &String,
+        response: &str,
     ) -> Result<textsender_models::token::LoginResult, std::io::Error> {
         match serde_json::from_str::<serde_json::Value>(response) {
             Ok(j) => {
@@ -118,3 +119,11 @@ pub mod auth {
         now > expire
     }
 }
+
+pub fn auth_header(
+    access_token: &str,
+) -> (reqwest::header::HeaderName, reqwest::header::HeaderValue) {
+    let bearer = format!("Bearer {}", access_token);
+    let header_value = reqwest::header::HeaderValue::from_str(&bearer).unwrap();
+    (reqwest::header::AUTHORIZATION, header_value)
+}

src/service/queue.rs

@@ -0,0 +1,68 @@
+pub struct Queue {
+    pub app: crate::app::App,
+    pub token: textsender_models::token::LoginResult,
+}
+
+impl Queue {
+    pub async fn get_queue(
+        &self,
+    ) -> Result<textsender_models::message::scheduling::ScheduledMessage, std::io::Error> {
+        let client = reqwest::Client::new();
+        let endpoint = String::from("api/v1/schedule/message/fetch");
+        let api_url = format!("{}/{endpoint}", self.app.api_url);
+
+        println!("Url: {api_url:?}");
+
+        let (key, header) = super::auth_header(&self.token.access_token);
+
+        match client.get(api_url).header(key, header).send().await {
+            Ok(response) => match response.status() {
+                reqwest::StatusCode::OK => {
+                    println!("Response: {response:?}");
+                    match response.text().await {
+                        Ok(val) => match parse_queue_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_queue_response(
+    response: &str,
+) -> Result<textsender_models::message::scheduling::ScheduledMessage, std::io::Error> {
+    match serde_json::from_str::<serde_json::Value>(response) {
+        Ok(j) => {
+            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::message::scheduling::ScheduledMessage =
+                            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())),
+    }
+}