feat: implemented the /backup/list [GET] API endpoint

src/api/calls.rs

@@ -19,6 +19,17 @@ async fn backup_create(
     }
 }
 
+#[get("/backup/list")]
+async fn backup_list(data: web::Data<State>) -> impl Responder {
+    match handlers::backup_list(&data.pool).await {
+        Ok(resp) => HttpResponse::Ok().json(&resp),
+        Err(e) => {
+            error!("While handling /backup/create [POST] request: {e}");
+            HttpResponse::InternalServerError().finish()
+        }
+    }
+}
+
 #[post("/backup/preset")]
 async fn backup_preset_post(
     data: web::Data<State>,

src/api/data.rs

@@ -11,6 +11,14 @@ pub struct BackupConfig {
     pub docker: Option<BackupConfigDocker>,
 }
 
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "PascalCase")]
+pub struct Backup {
+    pub id: u64,
+    pub time: u64,
+    pub config: BackupConfig,
+}
+
 #[derive(Debug, Deserialize)]
 pub enum BackupCreateRequest {
     Preset(String),
@@ -22,6 +30,12 @@ pub enum BackupCreateResponse {
     Success,
 }
 
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "PascalCase")]
+pub struct BackupListResponse {
+    pub backups: Vec<Backup>,
+}
+
 #[derive(Debug, Deserialize, Serialize)]
 #[serde(rename_all = "PascalCase")]
 pub struct BackupPreset {

src/api/handlers.rs

@@ -24,6 +24,19 @@ pub async fn backup_create(
     Ok(BackupCreateResponse::Success)
 }
 
+pub async fn backup_list(pool: &SqlitePool) -> Result<BackupListResponse> {
+    Ok(BackupListResponse {
+        backups: backup::get_all_backups(pool, |b| match b.status() {
+            backup::Status::Finished => Some(b),
+            _ => None,
+        })
+        .await?
+        .iter()
+        .map(|preset| preset.clone().into())
+        .collect(),
+    })
+}
+
 pub async fn backup_preset_post(
     pool: &SqlitePool,
     request: BackupPreset,

src/api/mod.rs

@@ -23,6 +23,7 @@ pub async fn start(
     let _ = HttpServer::new(move || {
         App::new()
             .service(calls::backup_create)
+            .service(calls::backup_list)
             .service(calls::backup_preset_post)
             .service(calls::backup_preset_get)
             .service(calls::backup_preset_id_get)

src/backend/backup/mod.rs

@@ -4,6 +4,7 @@ pub mod worker;
 use crate::api;
 use anyhow::{Context, Error, Result};
 use chrono::NaiveDateTime;
+use log::error;
 use serde::{Deserialize, Serialize};
 use sqlx::SqlitePool;
 use std::path::PathBuf;
@@ -67,6 +68,7 @@ pub enum Status {
     Failed,
 }
 
+#[derive(Clone)]
 pub struct RawBackup {
     id: i64,
     time: i64,
@@ -99,6 +101,16 @@ impl TryFrom<RawBackup> for Backup {
     }
 }
 
+impl From<Backup> for api::data::Backup {
+    fn from(value: Backup) -> Self {
+        Self {
+            id: value.id,
+            time: value.time.timestamp() as u64,
+            config: value.config.into(),
+        }
+    }
+}
+
 impl Backup {
     pub async fn new(pool: &SqlitePool, tx: mpsc::Sender<Backup>, config: Config) -> Result<Self> {
         let time = chrono::Utc::now().naive_utc();
@@ -149,6 +161,10 @@ impl Backup {
         }
     }
 
+    pub fn status(&self) -> Status {
+        self.status.clone()
+    }
+
     pub async fn set_status(&self, pool: &SqlitePool, status: Status) -> Result<()> {
         let status = serde_json::to_string(&status)?;
         let id = self.id as i64;
@@ -164,3 +180,26 @@ impl Backup {
         Ok(())
     }
 }
+
+pub async fn get_all_backups<F>(pool: &SqlitePool, filter: F) -> Result<Vec<Backup>>
+where
+    F: Fn(Backup) -> Option<Backup>,
+{
+    let query_result = sqlx::query_as!(RawBackup, r#"SELECT * FROM Backups;"#)
+        .fetch_all(pool)
+        .await;
+
+    match query_result {
+        Ok(raw_presets) => Ok(raw_presets
+            .iter()
+            .filter_map(|raw| match raw.clone().try_into() {
+                Ok(b) => filter(b),
+                Err(e) => {
+                    error!("Failed to parse backup from database row: {e}");
+                    None
+                }
+            })
+            .collect::<Vec<Backup>>()),
+        Err(e) => Err(Error::new(e)),
+    }
+}