~saiko/modsite

ref: cd733e953863c9c20ffb288355fc045d6dcc983e modsite/site/src/site/main_page.rs -rw-r--r-- 4.6 KiB
cd733e952xsaiko Finish migration to sqlx 4 months ago
                                                                                
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use actix_web::{HttpRequest, HttpResponse, Responder, web};
use futures_util::TryStreamExt;
use handlebars::Handlebars;
use serde::{Deserialize, Serialize};
use sqlx::{FromRow, PgConnection, Pool};

use crate::db::types::Environment;
use crate::site::db_access::{Db, map_db_err};
use crate::site::geninfo::GenInfo;

pub async fn main_page(req: HttpRequest, page_state: web::Query<PageState>, hb: web::Data<Handlebars<'_>>, db: Db) -> Result<impl Responder, actix_web::Error> {
    let sorting = SortLinks::from(&page_state, &req);

    let body = hb.render("index", &Data {
        current_query: page_state.query.as_deref(),
        mods: ModData::get_all(&db).await.map_err(map_db_err)?,
        geninfo: GenInfo::current(),
        sorting,
    }).unwrap();

    Ok(HttpResponse::Ok().body(body))
}

#[derive(Clone, Debug, Serialize, Deserialize)]
pub struct PageState {
    query: Option<String>,
    sort: Option<SortType>,
    order: Option<SortOrder>,
}

impl PageState {
    fn link(&self, req: &HttpRequest) -> String {
        let mut url = req.url_for_static("main_page").unwrap();
        url.set_query(Some(&serde_urlencoded::to_string(self).unwrap()));
        url.to_string()
    }

    fn sort(&self) -> SortType { self.sort.unwrap_or_default() }

    fn order(&self) -> SortOrder { self.order.unwrap_or_default() }
}

#[derive(Copy, Clone, Debug, Eq, PartialEq, Serialize, Deserialize)]
enum SortType {
    #[serde(rename = "name")]
    Name,
    #[serde(rename = "created")]
    Created,
    #[serde(rename = "updated")]
    Updated,
}

impl Default for SortType {
    fn default() -> Self { SortType::Updated }
}

#[derive(Debug, Clone, Copy, Eq, PartialEq, Serialize, Deserialize)]
enum SortOrder {
    #[serde(rename = "asc")]
    Asc,
    #[serde(rename = "desc")]
    Desc,
}

impl SortOrder {
    fn next(self) -> SortOrder {
        match self {
            SortOrder::Asc => SortOrder::Desc,
            SortOrder::Desc => SortOrder::Asc,
        }
    }
}

impl Default for SortOrder {
    fn default() -> Self { SortOrder::Desc }
}

#[derive(Serialize)]
struct Data<'a> {
    current_query: Option<&'a str>,
    mods: Vec<ModData>,
    geninfo: GenInfo,
    sorting: SortLinks,
}

#[derive(Serialize)]
struct ModData {
    display_name: String,
    from_db: FromDb,
}

#[derive(FromRow, Serialize)]
struct FromDb {
    id: String,
    modid: String,
    name: Option<String>,
    description: Option<String>,
    homepage: Option<String>,
    issues: Option<String>,
    source: Option<String>,
    license: Option<String>,
    download_link: String,
    environment: Environment,
}

impl ModData {
    async fn get_all(db: &Pool<PgConnection>) -> sqlx::Result<Vec<ModData>> {
        let from_db: Vec<FromDb> = sqlx::query_as_unchecked!(FromDb,
                "SELECT b.id, v.id as modid, v.name, v.description, v.homepage, v.issues, v.source, v.license, v.download_link, v.environment \
                 FROM mod_base b \
                 INNER JOIN mod_version v ON (v.file_version = b.display_version AND v.mod_base = b.uuid)")
            .fetch(db)
            .try_collect().await?;

        Ok(from_db.into_iter()
            .map(|data| ModData {
                display_name: data.name.clone().unwrap_or_else(|| data.id.clone()),
                from_db: data,
            }).collect())
    }
}

#[derive(Serialize)]
struct SortLinks {
    name: SortLink,
    created: SortLink,
    updated: SortLink,
}

#[derive(Serialize)]
struct SortLink {
    link: String,
    prefix: &'static str,
}

impl SortLink {
    fn from(typ: SortType, page_state: &PageState, req: &HttpRequest) -> SortLink {
        if page_state.sort() != typ {
            let mut new_state = page_state.clone();
            new_state.sort = Some(typ);
            new_state.order = Some(Default::default());
            SortLink {
                link: new_state.link(req),
                prefix: "",
            }
        } else {
            let mut new_state = page_state.clone();
            new_state.sort = Some(new_state.sort());
            new_state.order = Some(new_state.order().next());
            let prefix = match new_state.order() {
                SortOrder::Asc => "▴ ",
                SortOrder::Desc => "▾ ",
            };
            SortLink {
                link: new_state.link(req),
                prefix,
            }
        }
    }
}

impl SortLinks {
    fn from(page_state: &PageState, req: &HttpRequest) -> SortLinks {
        SortLinks {
            name: SortLink::from(SortType::Name, page_state, req),
            created: SortLink::from(SortType::Created, page_state, req),
            updated: SortLink::from(SortType::Updated, page_state, req),
        }
    }
}