src/routes/artist.rs


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use crate::database::Artist;
use crate::AppState;
use actix_web::{get, web, HttpResponse};
use serde::Deserialize;

#[derive(Deserialize)]
struct ArtistQueryOptions {
    id: Option<String>,
    name: Option<String>,
}

#[get("/artist")]
pub async fn artist(
    app_state: web::Data<AppState>,
    get_args: web::Query<ArtistQueryOptions>,
) -> HttpResponse {
    let default: String = String::from("");
    let search_attempt: sqlx::Result<Vec<Artist>, sqlx::Error> = match true {
        _ if check_if_exists(&get_args.id) => {
            let id: &str = &get_args.id.as_ref().unwrap_or(&default);

            app_state.database.select_artist_by_id(id).await
        }
        _ if check_if_exists(&get_args.name) => {
            let name: &str = &get_args.name.as_ref().unwrap_or(&default);
            app_state.database.select_artists_by_name(name).await
        }
        _ => app_state.database.select_artists().await,
    };

    match search_attempt {
        Ok(artist_list) => HttpResponse::Ok().json(artist_list),
        Err(e) => HttpResponse::Ok().body(format!("{}", e)),
    }
}

fn check_if_exists(value: &Option<String>) -> bool {
    match value {
        Some(_) => true,
        None => false,
    }
}