sqlx

scraper-rs/.env

@@ -0,0 +1 @@
+DATABASE_URL=sqlite:../sqlite.db

scraper-rs/.sqlx/query-08d55fc80c8a6ad73d311e8b1cd535425e5c2f39cf98735b5f67cb91d01937ce.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO producto_urls(url, first_seen, last_seen)\n                    VALUES (?1, ?2, ?2)\n                    ON CONFLICT(url) DO UPDATE SET last_seen=?2;",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 2
+    },
+    "nullable": []
+  },
+  "hash": "08d55fc80c8a6ad73d311e8b1cd535425e5c2f39cf98735b5f67cb91d01937ce"
+}

scraper-rs/.sqlx/query-144f4622ac9a937aa4885ceb5a67f6c0a78e7e025cf152a8c176b9fd1de241da.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO db_best_selling(fetched_at, category, eans_json)\n                    VALUES (?1, ?2, ?3);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 3
+    },
+    "nullable": []
+  },
+  "hash": "144f4622ac9a937aa4885ceb5a67f6c0a78e7e025cf152a8c176b9fd1de241da"
+}

scraper-rs/.sqlx/query-aa5c2a04aec149d88f6e25a9bd7df4e257f3c9b0efa62c8342d077d69d826a69.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT url FROM producto_urls WHERE url LIKE ?1;",
+  "describe": {
+    "columns": [
+      {
+        "name": "url",
+        "ordinal": 0,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "aa5c2a04aec149d88f6e25a9bd7df4e257f3c9b0efa62c8342d077d69d826a69"
+}

scraper-rs/.sqlx/query-d0c3a557a81f6685b242ed0be8e8c67b47ec8a575d2a14a487b3294e0faec438.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "INSERT INTO precios(ean, fetched_at, precio_centavos, in_stock, url, warc_record_id, parser_version, name, image_url) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9);",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 9
+    },
+    "nullable": []
+  },
+  "hash": "d0c3a557a81f6685b242ed0be8e8c67b47ec8a575d2a14a487b3294e0faec438"
+}

scraper-rs/.sqlx/query-f249765f2fb013a81a4157a6ce19744a8d5f70c83ed9ddddfd55009136088a52.json

@@ -0,0 +1,20 @@
+{
+  "db_name": "SQLite",
+  "query": "SELECT ean FROM precios WHERE url = ?1;",
+  "describe": {
+    "columns": [
+      {
+        "name": "ean",
+        "ordinal": 0,
+        "type_info": "Text"
+      }
+    ],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": [
+      false
+    ]
+  },
+  "hash": "f249765f2fb013a81a4157a6ce19744a8d5f70c83ed9ddddfd55009136088a52"
+}

scraper-rs/Cargo.toml

@@ -12,8 +12,7 @@ base64 = "0.21.7"
 chrono = "0.4.32"
 clap = { version = "4.4.15", features = ["derive"] }
 cron = "0.12.0"
-deadpool = "0.10.0"
+sqlx = { version = "0.7", features = [ "runtime-tokio", "sqlite" ] }
-deadpool-sqlite = "0.7.0"
 futures = "0.3.30"
 html-escape = "0.2.13"
 itertools = "0.12.0"

scraper-rs/src/best_selling.rs

@@ -1,9 +1,8 @@
 use std::collections::HashMap;
 
-use crate::{build_client, sites::vtex, supermercado::Supermercado};
+use crate::{build_client, db::Db, sites::vtex, supermercado::Supermercado};
 use chrono::{DateTime, Utc};
 use clap::ValueEnum;
-use deadpool_sqlite::Pool;
 use futures::{stream, FutureExt, StreamExt, TryStreamExt};
 use itertools::Itertools;
 use tracing::warn;
@@ -49,21 +48,11 @@ pub struct BestSellingRecord {
     pub eans: Vec<String>,
 }
 
-async fn get_best_selling_eans(pool: &Pool, urls: Vec<String>) -> anyhow::Result<Vec<String>> {
+async fn get_best_selling_eans(db: &Db, urls: Vec<String>) -> anyhow::Result<Vec<String>> {
     let mut eans: Vec<String> = Vec::new();
 
     for url in urls {
-        let q = url.clone();
+        let ean = db.get_ean_by_url(&url).await?;
-        let ean = pool
-            .get()
-            .await?
-            .interact(move |conn| {
-                conn.prepare(r#"SELECT ean FROM precios WHERE url = ?1;"#)?
-                    .query_map(rusqlite::params![q], |r| r.get::<_, String>(0))
-                    .map(|r| r.map(|r| r.unwrap()).next())
-            })
-            .await
-            .unwrap()?;
         match ean {
             Some(e) => eans.push(e),
             None => warn!("No encontré EAN para {}", url),
@@ -75,13 +64,13 @@ async fn get_best_selling_eans(pool: &Pool, urls: Vec<String>) -> anyhow::Result
 
 async fn try_get_best_selling_eans(
     client: reqwest::Client,
-    pool: Pool,
+    db: Db,
     supermercado: &Supermercado,
     category: &Category,
 ) -> anyhow::Result<Option<Vec<String>>> {
     if let Some(query) = category.query(supermercado) {
         let urls = vtex::get_best_selling_by_category(&client, supermercado.host(), query).await?;
-        let eans = get_best_selling_eans(&pool, urls).await?;
+        let eans = get_best_selling_eans(&db, urls).await?;
         Ok(Some(eans))
     } else {
         Ok(None)
@@ -107,18 +96,18 @@ fn rank_eans(eans: Vec<Vec<String>>) -> Vec<String> {
         .collect_vec()
 }
 
-pub async fn get_all_best_selling(pool: &Pool) -> anyhow::Result<Vec<BestSellingRecord>> {
+pub async fn get_all_best_selling(db: &Db) -> anyhow::Result<Vec<BestSellingRecord>> {
     let client = &build_client();
 
     stream::iter(Category::value_variants())
         .map(|category| {
             stream::iter(Supermercado::value_variants())
                 .map(|supermercado| {
-                    let pool = pool.clone();
+                    let db = db.clone();
                     let client = client.clone();
                     tokio::spawn(try_get_best_selling_eans(
                         client,
-                        pool,
+                        db,
                         supermercado,
                         category,
                     ))

scraper-rs/src/db.rs

@@ -0,0 +1,109 @@
+use std::{
+    env,
+    str::FromStr,
+    time::{SystemTime, UNIX_EPOCH},
+};
+
+use sqlx::{sqlite::SqliteConnectOptions, SqlitePool};
+
+use crate::{best_selling::BestSellingRecord, PrecioPoint};
+
+#[derive(Clone)]
+pub struct Db {
+    pool: SqlitePool,
+}
+
+impl Db {
+    pub async fn connect() -> anyhow::Result<Self> {
+        let db_path = env::var("DB_PATH").unwrap_or("../sqlite.db".to_string());
+        let pool = sqlx::pool::PoolOptions::new()
+            .max_connections(1)
+            .connect_with(
+                SqliteConnectOptions::from_str(&db_path)?
+                    .journal_mode(sqlx::sqlite::SqliteJournalMode::Wal)
+                    .synchronous(sqlx::sqlite::SqliteSynchronous::Normal)
+                    .optimize_on_close(true, None),
+            )
+            .await?;
+        Ok(Self { pool })
+    }
+
+    pub async fn insert_precio(&self, point: PrecioPoint) -> anyhow::Result<()> {
+        sqlx::query!("INSERT INTO precios(ean, fetched_at, precio_centavos, in_stock, url, warc_record_id, parser_version, name, image_url) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9);",
+            point.ean,
+            point.fetched_at,
+            point.precio_centavos,
+            point.in_stock,
+            point.url,
+            None::<String>,
+            point.parser_version,
+            point.name,
+            point.image_url,
+        ).execute(&self.pool).await?;
+        Ok(())
+    }
+
+    pub async fn get_ean_by_url(&self, url: &str) -> anyhow::Result<Option<String>> {
+        Ok(sqlx::query!("SELECT ean FROM precios WHERE url = ?1;", url)
+            .fetch_optional(&self.pool)
+            .await?
+            .map(|r| r.ean))
+    }
+
+    pub async fn get_urls_by_domain(&self, domain: &str) -> anyhow::Result<Vec<String>> {
+        let query = format!("%{}%", domain);
+        Ok(
+            sqlx::query!("SELECT url FROM producto_urls WHERE url LIKE ?1;", query)
+                .fetch_all(&self.pool)
+                .await?
+                .into_iter()
+                .map(|r| r.url)
+                .collect(),
+        )
+    }
+
+    pub async fn save_producto_urls(&self, urls: Vec<String>) -> anyhow::Result<()> {
+        let now: i64 = now_ms().try_into()?;
+        let mut tx = self.pool.begin().await?;
+        for url in urls {
+            sqlx::query!(
+                r#"INSERT INTO producto_urls(url, first_seen, last_seen)
+                    VALUES (?1, ?2, ?2)
+                    ON CONFLICT(url) DO UPDATE SET last_seen=?2;"#,
+                url,
+                now
+            )
+            .execute(&mut *tx)
+            .await?;
+        }
+        tx.commit().await?;
+        Ok(())
+    }
+
+    pub async fn save_best_selling(&self, records: Vec<BestSellingRecord>) -> anyhow::Result<()> {
+        let mut tx = self.pool.begin().await?;
+        for record in records {
+            let fetched_at = record.fetched_at.timestamp_millis();
+            let category = record.category.id();
+            let eans_json = serde_json::Value::from(record.eans).to_string();
+            sqlx::query!(
+                r#"INSERT INTO db_best_selling(fetched_at, category, eans_json)
+                    VALUES (?1, ?2, ?3);"#,
+                fetched_at,
+                category,
+                eans_json
+            )
+            .execute(&mut *tx)
+            .await?;
+        }
+        tx.commit().await?;
+        Ok(())
+    }
+}
+
+fn now_ms() -> u128 {
+    SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .expect("Time went backwards")
+        .as_millis()
+}

scraper-rs/src/main.rs

@@ -1,8 +1,7 @@
 use again::RetryPolicy;
-use best_selling::BestSellingRecord;
 use clap::{Parser, ValueEnum};
 use cron::Schedule;
-use deadpool_sqlite::Pool;
+use db::Db;
 use futures::{future, stream, Future, StreamExt};
 use nanoid::nanoid;
 use reqwest::{header::HeaderMap, StatusCode, Url};
@@ -73,7 +72,7 @@ async fn scrap_url_cli(url: String) -> anyhow::Result<()> {
 }
 mod best_selling;
 async fn scrap_best_selling_cli() -> anyhow::Result<()> {
-    let db = connect_db();
+    let db = Db::connect().await?;
     let res = best_selling::get_all_best_selling(&db).await;
 
     println!("Result: {:#?}", res);
@@ -89,14 +88,14 @@ async fn fetch_list_cli(links_list_path: String) -> anyhow::Result<()> {
         .map(|s| s.to_owned())
         .collect::<Vec<_>>();
 
-    let pool = connect_db();
+    let db = Db::connect().await?;
-    let counters = fetch_list(&pool, links).await;
+    let counters = fetch_list(&db, links).await;
 
     println!("Finished: {:?}", counters);
     Ok(())
 }
 
-async fn fetch_list(pool: &Pool, links: Vec<String>) -> Counters {
+async fn fetch_list(db: &Db, links: Vec<String>) -> Counters {
     let n_coroutines = env::var("N_COROUTINES")
         .map_or(Ok(24), |s| s.parse::<usize>())
         .expect("N_COROUTINES no es un número");
@@ -105,9 +104,9 @@ async fn fetch_list(pool: &Pool, links: Vec<String>) -> Counters {
 
     stream::iter(links)
         .map(|url| {
-            let pool = pool.clone();
+            let db = db.clone();
             let client = client.clone();
-            tokio::spawn(fetch_and_save(client, url, pool))
+            tokio::spawn(fetch_and_save(client, url, db))
         })
         .buffer_unordered(n_coroutines)
         .fold(Counters::default(), move |x, y| {
@@ -121,11 +120,7 @@ async fn fetch_list(pool: &Pool, links: Vec<String>) -> Counters {
         .await
 }
 
-fn connect_db() -> Pool {
+mod db;
-    let db_path = env::var("DB_PATH").unwrap_or("../sqlite.db".to_string());
-    let cfg = deadpool_sqlite::Config::new(db_path);
-    cfg.create_pool(deadpool_sqlite::Runtime::Tokio1).unwrap()
-}
 
 #[derive(Default, Debug)]
 struct Counters {
@@ -134,26 +129,13 @@ struct Counters {
     skipped: u64,
 }
 
-async fn fetch_and_save(client: reqwest::Client, url: String, pool: Pool) -> Counters {
+async fn fetch_and_save(client: reqwest::Client, url: String, db: Db) -> Counters {
     let res = fetch_and_parse(&client, url.clone()).await;
     let mut counters = Counters::default();
     match res {
         Ok(res) => {
             counters.success += 1;
-            pool.get().await.unwrap().interact(move |conn| conn.execute(
+            db.insert_precio(res).await.unwrap();
-                "INSERT INTO precios(ean, fetched_at, precio_centavos, in_stock, url, warc_record_id, parser_version, name, image_url) VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9);",
-                rusqlite::params![
-                    res.ean,
-                    res.fetched_at,
-                    res.precio_centavos,
-                    res.in_stock,
-                    res.url,
-                    None::<String>,
-                    res.parser_version,
-                    res.name,
-                    res.image_url,
-                ]
-            )).await.unwrap().unwrap();
         }
         Err(err) => {
             match err.downcast_ref::<reqwest::Error>() {
@@ -301,7 +283,7 @@ struct AutoTelegram {
 
 #[derive(Clone)]
 struct Auto {
-    pool: Pool,
+    db: Db,
     telegram: Option<AutoTelegram>,
 }
 impl Auto {
@@ -316,24 +298,7 @@ impl Auto {
             ))
             .await;
         }
-        let links: Vec<String> = {
+        let links: Vec<String> = self.db.get_urls_by_domain(supermercado.host()).await?;
-            let search = format!("%{}%", supermercado.host());
-            self.pool
-                .get()
-                .await?
-                .interact(move |conn| -> anyhow::Result<Vec<String>> {
-                    Ok(conn
-                        .prepare(
-                            r#"SELECT url FROM producto_urls
-                                    WHERE url LIKE ?1;"#,
-                        )?
-                        .query_map(rusqlite::params![search], |r| r.get::<_, String>(0))?
-                        .map(|r| r.unwrap())
-                        .collect())
-                })
-                .await
-                .unwrap()?
-        };
         // {
         //     let debug_path = PathBuf::from("debug/");
         //     tokio::fs::create_dir_all(&debug_path).await.unwrap();
@@ -345,7 +310,7 @@ impl Auto {
         // }
         {
             let t0 = now_sec();
-            let counters = fetch_list(&self.pool, links).await;
+            let counters = fetch_list(&self.db, links).await;
             self.inform(&format!(
                 "Downloaded {:?}: {:?} (took {})",
                 &supermercado,
@@ -368,56 +333,7 @@ impl Auto {
 
     async fn get_and_save_urls(&self, supermercado: &Supermercado) -> anyhow::Result<()> {
         let urls = get_urls(supermercado).await?;
-        self.pool
+        self.db.save_producto_urls(urls).await?;
-            .get()
-            .await?
-            .interact(|conn| -> Result<(), anyhow::Error> {
-                let tx = conn.transaction()?;
-                {
-                    let mut stmt = tx.prepare(
-                        r#"INSERT INTO producto_urls(url, first_seen, last_seen)
-                            VALUES (?1, ?2, ?2)
-                            ON CONFLICT(url) DO UPDATE SET last_seen=?2;"#,
-                    )?;
-                    let now: u64 = now_ms().try_into()?;
-                    for url in urls {
-                        stmt.execute(rusqlite::params![url, now])?;
-                    }
-                }
-                tx.commit()?;
-                Ok(())
-            })
-            .await
-            .unwrap()?;
-        Ok(())
-    }
-
-    async fn save_best_selling(&self, best_selling: Vec<BestSellingRecord>) -> anyhow::Result<()> {
-        self.pool
-            .get()
-            .await?
-            .interact(move |conn| -> Result<(), anyhow::Error> {
-                let tx = conn.transaction()?;
-                {
-                    let mut stmt = tx.prepare(
-                        r#"INSERT INTO db_best_selling(fetched_at, category, eans_json)
-                            VALUES (?1, ?2, ?3);"#,
-                    )?;
-                    for record in best_selling {
-                        let eans_json = serde_json::Value::from(record.eans).to_string();
-                        let fetched_at = record.fetched_at.timestamp_millis();
-                        stmt.execute(rusqlite::params![
-                            fetched_at,
-                            record.category.id(),
-                            eans_json
-                        ])?;
-                    }
-                }
-                tx.commit()?;
-                Ok(())
-            })
-            .await
-            .unwrap()?;
         Ok(())
     }
 
@@ -438,7 +354,8 @@ impl Auto {
 }
 
 async fn auto_cli() -> anyhow::Result<()> {
-    let db = connect_db();
+    let auto = {
+        let db = Db::connect().await?;
         let telegram = {
             match (
                 env::var("TELEGRAM_BOT_TOKEN"),
@@ -451,7 +368,8 @@ async fn auto_cli() -> anyhow::Result<()> {
                 }
             }
         };
-    let auto = Auto { pool: db, telegram };
+        Auto { db, telegram }
+    };
     auto.inform("[auto] Empezando scrap").await;
     let handles: Vec<_> = Supermercado::value_variants()
         .iter()
@@ -462,10 +380,10 @@ async fn auto_cli() -> anyhow::Result<()> {
     let best_selling = auto
         .inform_time(
             "Downloaded best selling",
-            best_selling::get_all_best_selling(&auto.pool),
+            best_selling::get_all_best_selling(&auto.db),
         )
         .await?;
-    auto.save_best_selling(best_selling).await?;
+    auto.db.save_best_selling(best_selling).await?;
 
     Ok(())
 }
@@ -494,8 +412,8 @@ mod sites;
 struct PrecioPoint {
     ean: String,
     // unix
-    fetched_at: u64,
+    fetched_at: i64,
-    precio_centavos: Option<u64>,
+    precio_centavos: Option<i64>,
     in_stock: Option<bool>,
     url: String,
     parser_version: u16,
@@ -503,13 +421,9 @@ struct PrecioPoint {
     image_url: Option<String>,
 }
 
-fn now_sec() -> u64 {
+fn now_sec() -> i64 {
-    since_the_epoch().as_secs()
+    since_the_epoch().as_secs().try_into().unwrap()
 }
-fn now_ms() -> u128 {
-    since_the_epoch().as_millis()
-}
-
 fn since_the_epoch() -> Duration {
     SystemTime::now()
         .duration_since(UNIX_EPOCH)

scraper-rs/src/sites/common.rs

@@ -11,9 +11,9 @@ pub fn get_meta_content<'a>(dom: &'a VDom<'a>, prop: &str) -> Option<Cow<'a, str
         .map(|s| s.as_utf8_str())
 }
 
-pub fn price_from_meta(dom: &tl::VDom<'_>) -> Result<Option<u64>, anyhow::Error> {
+pub fn price_from_meta(dom: &tl::VDom<'_>) -> Result<Option<i64>, anyhow::Error> {
     let precio_centavos = get_meta_content(dom, "product:price:amount")
-        .map(|s| s.parse::<f64>().map(|f| (f * 100.0) as u64))
+        .map(|s| s.parse::<f64>().map(|f| (f * 100.0) as i64))
         .transpose()?;
     Ok(precio_centavos)
 }

scraper-rs/src/sites/coto.rs

@@ -37,7 +37,7 @@ pub fn parse(url: String, dom: &tl::VDom) -> Result<PrecioPoint, anyhow::Error>
         })
         .transpose()
         .context("Parseando precio")?
-        .map(|f| (f * 100.0) as u64);
+        .map(|f| (f * 100.0) as i64);
 
     let in_stock = Some(
         dom.query_selector(".product_not_available")