refactor(api): change 'docente' variable name to 'teacher' in get_header function

Cargo.lock

@@ -989,7 +989,7 @@ dependencies = [
 
 [[package]]
 name = "orario-scolastico-itet"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "askama",
  "axum",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "orario-scolastico-itet"
-version = "0.1.0"
+version = "0.2.0"
 edition = "2021"
 
 [dependencies]

LICENSE

@@ -0,0 +1,373 @@
+Mozilla Public License Version 2.0
+==================================
+
+1. Definitions
+--------------
+
+1.1. "Contributor"
+    means each individual or legal entity that creates, contributes to
+    the creation of, or owns Covered Software.
+
+1.2. "Contributor Version"
+    means the combination of the Contributions of others (if any) used
+    by a Contributor and that particular Contributor's Contribution.
+
+1.3. "Contribution"
+    means Covered Software of a particular Contributor.
+
+1.4. "Covered Software"
+    means Source Code Form to which the initial Contributor has attached
+    the notice in Exhibit A, the Executable Form of such Source Code
+    Form, and Modifications of such Source Code Form, in each case
+    including portions thereof.
+
+1.5. "Incompatible With Secondary Licenses"
+    means
+
+    (a) that the initial Contributor has attached the notice described
+        in Exhibit B to the Covered Software; or
+
+    (b) that the Covered Software was made available under the terms of
+        version 1.1 or earlier of the License, but not also under the
+        terms of a Secondary License.
+
+1.6. "Executable Form"
+    means any form of the work other than Source Code Form.
+
+1.7. "Larger Work"
+    means a work that combines Covered Software with other material, in
+    a separate file or files, that is not Covered Software.
+
+1.8. "License"
+    means this document.
+
+1.9. "Licensable"
+    means having the right to grant, to the maximum extent possible,
+    whether at the time of the initial grant or subsequently, any and
+    all of the rights conveyed by this License.
+
+1.10. "Modifications"
+    means any of the following:
+
+    (a) any file in Source Code Form that results from an addition to,
+        deletion from, or modification of the contents of Covered
+        Software; or
+
+    (b) any new file in Source Code Form that contains any Covered
+        Software.
+
+1.11. "Patent Claims" of a Contributor
+    means any patent claim(s), including without limitation, method,
+    process, and apparatus claims, in any patent Licensable by such
+    Contributor that would be infringed, but for the grant of the
+    License, by the making, using, selling, offering for sale, having
+    made, import, or transfer of either its Contributions or its
+    Contributor Version.
+
+1.12. "Secondary License"
+    means either the GNU General Public License, Version 2.0, the GNU
+    Lesser General Public License, Version 2.1, the GNU Affero General
+    Public License, Version 3.0, or any later versions of those
+    licenses.
+
+1.13. "Source Code Form"
+    means the form of the work preferred for making modifications.
+
+1.14. "You" (or "Your")
+    means an individual or a legal entity exercising rights under this
+    License. For legal entities, "You" includes any entity that
+    controls, is controlled by, or is under common control with You. For
+    purposes of this definition, "control" means (a) the power, direct
+    or indirect, to cause the direction or management of such entity,
+    whether by contract or otherwise, or (b) ownership of more than
+    fifty percent (50%) of the outstanding shares or beneficial
+    ownership of such entity.
+
+2. License Grants and Conditions
+--------------------------------
+
+2.1. Grants
+
+Each Contributor hereby grants You a world-wide, royalty-free,
+non-exclusive license:
+
+(a) under intellectual property rights (other than patent or trademark)
+    Licensable by such Contributor to use, reproduce, make available,
+    modify, display, perform, distribute, and otherwise exploit its
+    Contributions, either on an unmodified basis, with Modifications, or
+    as part of a Larger Work; and
+
+(b) under Patent Claims of such Contributor to make, use, sell, offer
+    for sale, have made, import, and otherwise transfer either its
+    Contributions or its Contributor Version.
+
+2.2. Effective Date
+
+The licenses granted in Section 2.1 with respect to any Contribution
+become effective for each Contribution on the date the Contributor first
+distributes such Contribution.
+
+2.3. Limitations on Grant Scope
+
+The licenses granted in this Section 2 are the only rights granted under
+this License. No additional rights or licenses will be implied from the
+distribution or licensing of Covered Software under this License.
+Notwithstanding Section 2.1(b) above, no patent license is granted by a
+Contributor:
+
+(a) for any code that a Contributor has removed from Covered Software;
+    or
+
+(b) for infringements caused by: (i) Your and any other third party's
+    modifications of Covered Software, or (ii) the combination of its
+    Contributions with other software (except as part of its Contributor
+    Version); or
+
+(c) under Patent Claims infringed by Covered Software in the absence of
+    its Contributions.
+
+This License does not grant any rights in the trademarks, service marks,
+or logos of any Contributor (except as may be necessary to comply with
+the notice requirements in Section 3.4).
+
+2.4. Subsequent Licenses
+
+No Contributor makes additional grants as a result of Your choice to
+distribute the Covered Software under a subsequent version of this
+License (see Section 10.2) or under the terms of a Secondary License (if
+permitted under the terms of Section 3.3).
+
+2.5. Representation
+
+Each Contributor represents that the Contributor believes its
+Contributions are its original creation(s) or it has sufficient rights
+to grant the rights to its Contributions conveyed by this License.
+
+2.6. Fair Use
+
+This License is not intended to limit any rights You have under
+applicable copyright doctrines of fair use, fair dealing, or other
+equivalents.
+
+2.7. Conditions
+
+Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
+in Section 2.1.
+
+3. Responsibilities
+-------------------
+
+3.1. Distribution of Source Form
+
+All distribution of Covered Software in Source Code Form, including any
+Modifications that You create or to which You contribute, must be under
+the terms of this License. You must inform recipients that the Source
+Code Form of the Covered Software is governed by the terms of this
+License, and how they can obtain a copy of this License. You may not
+attempt to alter or restrict the recipients' rights in the Source Code
+Form.
+
+3.2. Distribution of Executable Form
+
+If You distribute Covered Software in Executable Form then:
+
+(a) such Covered Software must also be made available in Source Code
+    Form, as described in Section 3.1, and You must inform recipients of
+    the Executable Form how they can obtain a copy of such Source Code
+    Form by reasonable means in a timely manner, at a charge no more
+    than the cost of distribution to the recipient; and
+
+(b) You may distribute such Executable Form under the terms of this
+    License, or sublicense it under different terms, provided that the
+    license for the Executable Form does not attempt to limit or alter
+    the recipients' rights in the Source Code Form under this License.
+
+3.3. Distribution of a Larger Work
+
+You may create and distribute a Larger Work under terms of Your choice,
+provided that You also comply with the requirements of this License for
+the Covered Software. If the Larger Work is a combination of Covered
+Software with a work governed by one or more Secondary Licenses, and the
+Covered Software is not Incompatible With Secondary Licenses, this
+License permits You to additionally distribute such Covered Software
+under the terms of such Secondary License(s), so that the recipient of
+the Larger Work may, at their option, further distribute the Covered
+Software under the terms of either this License or such Secondary
+License(s).
+
+3.4. Notices
+
+You may not remove or alter the substance of any license notices
+(including copyright notices, patent notices, disclaimers of warranty,
+or limitations of liability) contained within the Source Code Form of
+the Covered Software, except that You may alter any license notices to
+the extent required to remedy known factual inaccuracies.
+
+3.5. Application of Additional Terms
+
+You may choose to offer, and to charge a fee for, warranty, support,
+indemnity or liability obligations to one or more recipients of Covered
+Software. However, You may do so only on Your own behalf, and not on
+behalf of any Contributor. You must make it absolutely clear that any
+such warranty, support, indemnity, or liability obligation is offered by
+You alone, and You hereby agree to indemnify every Contributor for any
+liability incurred by such Contributor as a result of warranty, support,
+indemnity or liability terms You offer. You may include additional
+disclaimers of warranty and limitations of liability specific to any
+jurisdiction.
+
+4. Inability to Comply Due to Statute or Regulation
+---------------------------------------------------
+
+If it is impossible for You to comply with any of the terms of this
+License with respect to some or all of the Covered Software due to
+statute, judicial order, or regulation then You must: (a) comply with
+the terms of this License to the maximum extent possible; and (b)
+describe the limitations and the code they affect. Such description must
+be placed in a text file included with all distributions of the Covered
+Software under this License. Except to the extent prohibited by statute
+or regulation, such description must be sufficiently detailed for a
+recipient of ordinary skill to be able to understand it.
+
+5. Termination
+--------------
+
+5.1. The rights granted under this License will terminate automatically
+if You fail to comply with any of its terms. However, if You become
+compliant, then the rights granted under this License from a particular
+Contributor are reinstated (a) provisionally, unless and until such
+Contributor explicitly and finally terminates Your grants, and (b) on an
+ongoing basis, if such Contributor fails to notify You of the
+non-compliance by some reasonable means prior to 60 days after You have
+come back into compliance. Moreover, Your grants from a particular
+Contributor are reinstated on an ongoing basis if such Contributor
+notifies You of the non-compliance by some reasonable means, this is the
+first time You have received notice of non-compliance with this License
+from such Contributor, and You become compliant prior to 30 days after
+Your receipt of the notice.
+
+5.2. If You initiate litigation against any entity by asserting a patent
+infringement claim (excluding declaratory judgment actions,
+counter-claims, and cross-claims) alleging that a Contributor Version
+directly or indirectly infringes any patent, then the rights granted to
+You by any and all Contributors for the Covered Software under Section
+2.1 of this License shall terminate.
+
+5.3. In the event of termination under Sections 5.1 or 5.2 above, all
+end user license agreements (excluding distributors and resellers) which
+have been validly granted by You or Your distributors under this License
+prior to termination shall survive termination.
+
+************************************************************************
+*                                                                      *
+*  6. Disclaimer of Warranty                                           *
+*  -------------------------                                           *
+*                                                                      *
+*  Covered Software is provided under this License on an "as is"       *
+*  basis, without warranty of any kind, either expressed, implied, or  *
+*  statutory, including, without limitation, warranties that the       *
+*  Covered Software is free of defects, merchantable, fit for a        *
+*  particular purpose or non-infringing. The entire risk as to the     *
+*  quality and performance of the Covered Software is with You.        *
+*  Should any Covered Software prove defective in any respect, You     *
+*  (not any Contributor) assume the cost of any necessary servicing,   *
+*  repair, or correction. This disclaimer of warranty constitutes an   *
+*  essential part of this License. No use of any Covered Software is   *
+*  authorized under this License except under this disclaimer.         *
+*                                                                      *
+************************************************************************
+
+************************************************************************
+*                                                                      *
+*  7. Limitation of Liability                                          *
+*  --------------------------                                          *
+*                                                                      *
+*  Under no circumstances and under no legal theory, whether tort      *
+*  (including negligence), contract, or otherwise, shall any           *
+*  Contributor, or anyone who distributes Covered Software as          *
+*  permitted above, be liable to You for any direct, indirect,         *
+*  special, incidental, or consequential damages of any character      *
+*  including, without limitation, damages for lost profits, loss of    *
+*  goodwill, work stoppage, computer failure or malfunction, or any    *
+*  and all other commercial damages or losses, even if such party      *
+*  shall have been informed of the possibility of such damages. This   *
+*  limitation of liability shall not apply to liability for death or   *
+*  personal injury resulting from such party's negligence to the       *
+*  extent applicable law prohibits such limitation. Some               *
+*  jurisdictions do not allow the exclusion or limitation of           *
+*  incidental or consequential damages, so this exclusion and          *
+*  limitation may not apply to You.                                    *
+*                                                                      *
+************************************************************************
+
+8. Litigation
+-------------
+
+Any litigation relating to this License may be brought only in the
+courts of a jurisdiction where the defendant maintains its principal
+place of business and such litigation shall be governed by laws of that
+jurisdiction, without reference to its conflict-of-law provisions.
+Nothing in this Section shall prevent a party's ability to bring
+cross-claims or counter-claims.
+
+9. Miscellaneous
+----------------
+
+This License represents the complete agreement concerning the subject
+matter hereof. If any provision of this License is held to be
+unenforceable, such provision shall be reformed only to the extent
+necessary to make it enforceable. Any law or regulation which provides
+that the language of a contract shall be construed against the drafter
+shall not be used to construe this License against a Contributor.
+
+10. Versions of the License
+---------------------------
+
+10.1. New Versions
+
+Mozilla Foundation is the license steward. Except as provided in Section
+10.3, no one other than the license steward has the right to modify or
+publish new versions of this License. Each version will be given a
+distinguishing version number.
+
+10.2. Effect of New Versions
+
+You may distribute the Covered Software under the terms of the version
+of the License under which You originally received the Covered Software,
+or under the terms of any subsequent version published by the license
+steward.
+
+10.3. Modified Versions
+
+If you create software not governed by this License, and you want to
+create a new license for such software, you may create and use a
+modified version of this License if you rename the license and remove
+any references to the name of the license steward (except to note that
+such modified license differs from this License).
+
+10.4. Distributing Source Code Form that is Incompatible With Secondary
+Licenses
+
+If You choose to distribute Source Code Form that is Incompatible With
+Secondary Licenses under the terms of this version of the License, the
+notice described in Exhibit B of this License must be attached.
+
+Exhibit A - Source Code Form License Notice
+-------------------------------------------
+
+  This Source Code Form is subject to the terms of the Mozilla Public
+  License, v. 2.0. If a copy of the MPL was not distributed with this
+  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+If it is not possible or desirable to put the notice in a particular
+file, then You may include the notice in a location (such as a LICENSE
+file in a relevant directory) where a recipient would be likely to look
+for such a notice.
+
+You may add additional accurate notices of copyright ownership.
+
+Exhibit B - "Incompatible With Secondary Licenses" Notice
+---------------------------------------------------------
+
+  This Source Code Form is "Incompatible With Secondary Licenses", as
+  defined by the Mozilla Public License, v. 2.0.

README.md

@@ -0,0 +1,68 @@
+# Orario Scolastico
+
+Orario Scolastico is a web application that allows students to view their school
+timetable in a more readable way. The application works by downloading the PDF
+file containing the timetable from the school website and then displaying it in
+a more user-friendly format.
+
+## Requirements
+
+### If you want to use Docker Compose
+
+- [Git](https://git-scm.com/downloads) (optional)
+- [Docker Compose](https://docs.docker.com/compose/install/)
+
+### If you don't want to use Docker Compose
+
+- [Git](https://git-scm.com/downloads) (optional)
+- [Cargo](https://doc.rust-lang.org/stable/cargo/getting-started/installation.html)
+- [Python](https://www.python.org/downloads/)
+
+## Usage
+
+If you want to self-host the project, you can follow the steps below:
+
+### With Docker Compose
+
+```bash
+git clone https://git.riefolo.me/mariano/orario-scolastico-itet.git
+cd orario-scolastico-itet
+docker compose up -d --build
+```
+
+### Without Docker Compose
+
+If you prefer to build the project without Docker, you can follow the steps below:
+
+```bash
+git clone https://git.riefolo.me/mariano/orario-scolastico-itet.git
+cd orario-scolastico-itet
+cargo build --release
+./target/release/orario-scolastico-itet
+```
+
+Consider that this may not work if you are not on a Linux machine.
+
+## Contributing
+
+Pull requests are welcome. For major changes, please open an issue first
+to discuss what you would like to change.
+
+Please make sure to update tests as appropriate.
+
+## FAQ
+
+### Does this project DoS the school website?
+
+The project features a cache system that prevents it from making too much
+requests. The list of PDFs is only fetched every 30 minutes only if a user asks for
+it, and the pdf files are only fetched once per file.
+
+### Can I use this project with my school?
+
+At the moment, the project is only compatible with the
+[ITET Cassandro Fermi Nervi](https://cassandroferminervi.edu.it/) institute in Italy.
+
+## License
+
+Orario Scolastico is released under the [Mozilla Public License 2.0](LICENSE)

src/api/mod.rs

@@ -5,7 +5,7 @@ use axum::{
     routing::get,
     Router,
 };
-use csv::StringRecord;
+use csv::{Reader, StringRecord};
 use failure::Error;
 use scraper::{Html, Selector};
 use serde::Deserialize;
@@ -27,7 +27,7 @@ pub fn get_routes() -> Router {
     )
 }
 
-async fn get_pdf_links() -> Result<Vec<String>, reqwest::Error> {
+async fn get_pdf() -> Result<HashMap<String, Vec<String>>, reqwest::Error> {
     if let Ok(metadata) = fs::metadata("pdf.json") {
         let last_modified = metadata.modified().unwrap();
         let now = std::time::SystemTime::now();
@@ -44,11 +44,18 @@ async fn get_pdf_links() -> Result<Vec<String>, reqwest::Error> {
         .await?;
 
     let dom = Html::parse_document(&response);
-    let selector = Selector::parse(".wp-block-list > li > a").unwrap();
-    let mut result = Vec::new();
+    let selector = Selector::parse("a:has(> strong)[href*=pdf]").unwrap();
+    let mut result: HashMap<String, Vec<String>> = HashMap::new();
 
     for element in dom.select(&selector) {
-        result.push(element.attr("href").unwrap().to_owned());
+        result
+            .entry(String::from("links"))
+            .or_default()
+            .push(element.attr("href").unwrap().to_owned());
+        result
+            .entry(String::from("names"))
+            .or_default()
+            .push(element.text().collect());
     }
 
     let data = serde_json::to_string(&result).unwrap();
@@ -58,18 +65,18 @@ async fn get_pdf_links() -> Result<Vec<String>, reqwest::Error> {
 }
 
 pub async fn pdf() -> impl IntoResponse {
-    match get_pdf_links().await {
-        Ok(x) => (StatusCode::OK, Json(json!({ "links": x}))),
+    match get_pdf().await {
+        Ok(x) => (StatusCode::OK, Json(json!(x["names"]))),
         Err(e) => (StatusCode::OK, Json(json!({ "error": e.to_string()}))),
     }
 }
 
-async fn download_pdf(id: u8) -> Result<String, Error> {
-    let links = get_pdf_links().await.unwrap();
+async fn get_csv(id: u8) -> Result<String, Error> {
+    let links = get_pdf().await.unwrap();
     if id as usize >= links.len() {
         return Err(failure::err_msg("Invalid ID"));
     }
-    let url = &links[id as usize];
+    let url = &links["links"][id as usize];
 
     let mut hasher = Sha1::new();
     hasher.update(url.as_bytes());
@@ -82,7 +89,7 @@ async fn download_pdf(id: u8) -> Result<String, Error> {
     let pdf_path = format!("pdf/{}.pdf", filename);
     let csv_path = format!("csv/{}.csv", filename);
 
-    if fs::metadata(&pdf_path).is_err() {
+    if fs::metadata(&csv_path).is_err() {
         let response = reqwest::get(url).await?;
         let body = response.bytes().await?;
         std::fs::write(&pdf_path, body)?;
@@ -92,7 +99,10 @@ async fn download_pdf(id: u8) -> Result<String, Error> {
             .arg(&pdf_path)
             .arg(&csv_path)
             .spawn()
-            .expect("Failed to generate csv file");
+            .expect("Failed to generate csv file")
+            .wait()?;
+
+        fs::remove_file(&pdf_path)?;
     }
 
     Ok(csv_path)
@@ -105,12 +115,12 @@ pub struct FilterByTeacherQuery {
 }
 
 pub struct Header {
-    teacher: u8,
+    teacher: Option<u8>,
     weekdays: HashMap<String, Range<usize>>,
 }
 
 pub async fn get_teacher(Query(params): Query<FilterByTeacherQuery>) -> impl IntoResponse {
-    let filename = match download_pdf(params.id).await {
+    let filename = match get_csv(params.id).await {
         Ok(x) => x,
         Err(_) => {
             return (
@@ -122,11 +132,11 @@ pub async fn get_teacher(Query(params): Query<FilterByTeacherQuery>) -> impl Int
     let csv_content = fs::read_to_string(&filename).unwrap();
 
     let mut rdr = csv::Reader::from_reader(csv_content.as_bytes());
-    let header = get_header(rdr.headers().unwrap());
+    let header = get_header_wrapper(&mut rdr);
 
     for record in rdr.records() {
         let record = record.unwrap();
-        if record[header.teacher as usize] == params.professore {
+        if record[header.teacher.unwrap() as usize] == params.professore {
             let mut result: HashMap<String, Vec<&str>> = HashMap::new();
             for (i, cell) in record.iter().enumerate() {
                 for (j, range) in header.weekdays.clone() {
@@ -152,7 +162,7 @@ pub struct FilterByClassQuery {
 }
 
 pub async fn get_class(Query(params): Query<FilterByClassQuery>) -> impl IntoResponse {
-    let filename = match download_pdf(params.id).await {
+    let filename = match get_csv(params.id).await {
         Ok(x) => x,
         Err(_) => {
             return (
@@ -164,7 +174,7 @@ pub async fn get_class(Query(params): Query<FilterByClassQuery>) -> impl IntoRes
     let csv_content = fs::read_to_string(&filename).unwrap();
 
     let mut rdr = csv::Reader::from_reader(csv_content.as_bytes());
-    let header = get_header(rdr.headers().unwrap());
+    let header = get_header_wrapper(&mut rdr);
 
     let mut result: HashMap<String, Vec<String>> = HashMap::new();
 
@@ -182,7 +192,8 @@ pub async fn get_class(Query(params): Query<FilterByClassQuery>) -> impl IntoRes
                             v.resize(range.end - range.start, String::new());
                             v
                         });
-                        value[i - range.start] = record[header.teacher as usize].to_string();
+                        value[i - range.start] =
+                            record[header.teacher.unwrap() as usize].to_string();
                     }
                 }
             }
@@ -199,9 +210,13 @@ pub async fn get_class(Query(params): Query<FilterByClassQuery>) -> impl IntoRes
     }
 }
 
-pub fn get_header(record: &StringRecord) -> Header {
-    let mut docente: u8 = 0;
+pub fn get_header(record: &StringRecord, header: Option<Header>) -> Header {
+    let mut teacher: Option<u8> = None;
     let mut weekdays = HashMap::new();
+    if let Some(h) = header {
+        teacher = h.teacher;
+        weekdays = h.weekdays;
+    }
 
     for (i, field) in record.iter().enumerate() {
         let next_index = record
@@ -210,29 +225,36 @@ pub fn get_header(record: &StringRecord) -> Header {
             .position(|x| !x.is_empty())
             .unwrap_or(record.len());
 
-        let field = field.replace("ì", "i").replace(" ", "").to_uppercase();
+        let field = field.replace(" ", "").to_uppercase();
 
         if field == "DOCENTE" {
-            docente = i as u8;
-        } else if field == "LUNEDI" {
+            teacher = Some(i as u8);
+        } else if field.starts_with("LUN") {
             weekdays.insert("Lunedì".to_string(), i..next_index + i + 1);
-        } else if field == "MARTEDI" {
+        } else if field.starts_with("MAR") {
             weekdays.insert("Martedì".to_string(), i..next_index + i + 1);
-        } else if field == "MERCOLEDI" {
+        } else if field.starts_with("MER") {
             weekdays.insert("Mercoledì".to_string(), i..next_index + i + 1);
-        } else if field == "GIOVEDI" {
+        } else if field.starts_with("GIO") {
             weekdays.insert("Giovedì".to_string(), i..next_index + i + 1);
-        } else if field == "VENERDI" {
+        } else if field.starts_with("VEN") {
             weekdays.insert("Venerdì".to_string(), i..next_index + i + 1);
-        } else if field == "SABATO" {
+        } else if field.starts_with("SAB") {
             weekdays.insert("Sabato".to_string(), i..next_index + i + 1);
         }
     }
 
-    Header {
-        teacher: docente,
-        weekdays,
+    Header { teacher, weekdays }
+}
+
+pub fn get_header_wrapper(rdr: &mut Reader<&[u8]>) -> Header {
+    let mut header = get_header(rdr.headers().unwrap(), None);
+    let mut records = rdr.records();
+    while header.teacher.is_none() {
+        let record = records.next().unwrap().unwrap();
+        header = get_header(&record, Some(header));
     }
+    header
 }
 
 #[derive(Deserialize)]
@@ -241,7 +263,7 @@ pub struct GetTeachersQuery {
 }
 
 pub async fn get_teachers(Query(params): Query<GetTeachersQuery>) -> impl IntoResponse {
-    let filename = match download_pdf(params.id).await {
+    let filename = match get_csv(params.id).await {
         Ok(x) => x,
         Err(_) => {
             return (
@@ -253,7 +275,7 @@ pub async fn get_teachers(Query(params): Query<GetTeachersQuery>) -> impl IntoRe
 
     let csv_content = fs::read_to_string(&filename).unwrap();
     let mut rdr = csv::Reader::from_reader(csv_content.as_bytes());
-    let header = get_header(rdr.headers().unwrap());
+    let header = get_header_wrapper(&mut rdr);
 
     let mut teachers = Vec::new();
 
@@ -263,7 +285,7 @@ pub async fn get_teachers(Query(params): Query<GetTeachersQuery>) -> impl IntoRe
             Err(_) => continue,
         };
 
-        if let Some(teacher) = record.get(header.teacher as usize) {
+        if let Some(teacher) = record.get(header.teacher.unwrap() as usize) {
             if !teacher.is_empty() {
                 teachers.push(teacher.to_owned());
             }
@@ -292,7 +314,7 @@ fn is_valid_class(class: &str) -> bool {
 }
 
 pub async fn get_classes(Query(params): Query<GetClassesQuery>) -> impl IntoResponse {
-    let filename = match download_pdf(params.id).await {
+    let filename = match get_csv(params.id).await {
         Ok(x) => x,
         Err(_) => {
             return (
@@ -304,7 +326,8 @@ pub async fn get_classes(Query(params): Query<GetClassesQuery>) -> impl IntoResp
     let csv_content = fs::read_to_string(&filename).unwrap();
 
     let mut rdr = csv::Reader::from_reader(csv_content.as_bytes());
-    let header = get_header(rdr.headers().unwrap());
+    let header = get_header_wrapper(&mut rdr);
+    println!("weekdays: {:?}", header.weekdays);
 
     let mut classes: Vec<HashMap<char, HashSet<String>>> = vec![HashMap::new(); 5];
 

src/frontend/mod.rs

@@ -10,6 +10,7 @@ pub fn get_routes() -> axum::Router {
     axum::Router::new()
         .route("/", get(index))
         .nest_service("/static", ServeDir::new("static"))
+        .fallback(not_found)
 }
 
 #[derive(Template)]
@@ -21,3 +22,13 @@ async fn index() -> impl IntoResponse {
     let html = template.render().unwrap();
     (StatusCode::OK, Html(html).into_response())
 }
+
+#[derive(Template)]
+#[template(path = "404.html")]
+struct NotFoundTemplate {}
+
+async fn not_found() -> impl IntoResponse {
+    let template = NotFoundTemplate {};
+    let html = template.render().unwrap();
+    (StatusCode::NOT_FOUND, Html(html).into_response())
+}

static/app.webmanifest

@@ -0,0 +1,21 @@
+{
+  "id": "/",
+  "start_url": "/",
+  "scope": "/",
+  "name": "Orario Scolastico (ITET Cassandro Fermi Nervi)",
+  "short_name": "Orario ITET",
+  "display": "standalone",
+  "icons": [
+    {
+      "src": "icon_x512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    },
+    {
+      "src": "maskable_icon_x512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "maskable"
+    }
+  ]
+}

static/index.js

@@ -1,21 +1,24 @@
-function load_links() {
+function load_pdfs() {
   fetch("/api/pdf")
     .then((response) => response.json())
     .then((data) => {
       let i = 0;
-      data.links.forEach((el) => {
-        const select = document.getElementById("links");
+      if (data === undefined || data.length === 0) {
+        show_error(null, "Nessun orario trovato");
+        return;
+      }
+      data.forEach((el) => {
+        const select = document.getElementById("pdf");
         const option = document.createElement("option");
         option.value = i;
-        option.text = el.split("/").pop().split(".pdf")[0];
+        option.text = el;
         select.appendChild(option);
         i++;
       });
-      document.getElementById("links-label").removeAttribute("aria-busy");
+      document.getElementById("pdf-label").removeAttribute("aria-busy");
     })
     .catch((error) => {
-      alert("Errore nel caricamento dei dati, riprova più tardi.");
-      console.error("Error:", error);
+      show_error(error);
     });
 }
 
@@ -30,14 +33,14 @@ function load_teachers(id) {
       data.forEach((el) => {
         const option = document.createElement("option");
         option.value = el;
+        option.text = el;
         list.appendChild(option);
         i++;
       });
       document.getElementById("teacher-label").removeAttribute("aria-busy");
     })
     .catch((error) => {
-      alert("Errore nel caricamento dei dati, riprova più tardi.");
-      console.error("Error:", error);
+      show_error(error);
     });
 }
 
@@ -62,16 +65,19 @@ function load_classes(id) {
       document.getElementById("class-label").removeAttribute("aria-busy");
     })
     .catch((error) => {
-      alert("Errore nel caricamento dei dati, riprova più tardi.");
-      console.error("Error:", error);
+      show_error(error);
     });
 }
 
 function make_teacher_table(id, teacher) {
+  document.getElementById("table-title").innerText =
+    `Orario del docente ${teacher}`;
   make_table(`/api/professore?id=${id}&professore=${teacher}`);
 }
 
 function make_student_table(id, student_class) {
+  document.getElementById("table-title").innerText =
+    `Orario della classe ${student_class}`;
   make_table(`/api/classe?id=${id}&classe=${student_class}`);
 }
 
@@ -138,19 +144,30 @@ function make_table(url) {
       document.getElementById("table").removeAttribute("aria-busy");
     })
     .catch((error) => {
-      alert("Errore nel caricamento dei dati, riprova più tardi.");
-      console.error("Error:", error);
+      show_error(error);
     });
 }
 
 function select_pdf() {
-  Cookies.set("id", document.getElementById("links").value);
+  Cookies.set("id", document.getElementById("pdf").value);
+  reset_forms();
+  document.getElementById("type").value = "none";
+  document.getElementById("form-teacher").setAttribute("hidden", "");
+  document.getElementById("form-classes").setAttribute("hidden", "");
   document.getElementById("form-type").removeAttribute("hidden");
 }
 
+function reset_forms() {
+  document.getElementById("year").value = "none";
+  document.getElementById("section").value = "none";
+  document.getElementById("major").value = "none";
+  document.getElementById("teacher").value = "";
+}
+
 function select_type() {
-  let id = document.getElementById("links").value;
+  let id = document.getElementById("pdf").value;
   let value = document.getElementById("type").value;
+  reset_forms();
   if (value === "teacher") {
     load_teachers(id);
     document.getElementById("form-teacher").removeAttribute("hidden");
@@ -200,7 +217,7 @@ function load_major() {
 }
 
 function select_teacher() {
-  let teacher = document.getElementById("teacher").value;
+  let teacher = document.getElementById("teachers").value;
   let teachers = JSON.parse(sessionStorage.getItem("teachers"));
   if (!teachers.includes(teacher)) {
     return false;
@@ -224,6 +241,36 @@ function delete_cookies() {
   Cookies.remove("class");
 }
 
+function show_error(e, message) {
+  let default_error = "Errore nel caricamento dei dati, riprova più tardi";
+  console.error(e ?? default_error);
+  document.getElementById("error").textContent = message ?? default_error;
+  document.getElementById("error-dialog").setAttribute("open", "");
+}
+
+function filter_teachers() {
+  let input = document.getElementById("teacher");
+  let filter = input.value.toUpperCase();
+  let select = document.getElementById("teachers");
+  let option = select.getElementsByTagName("option");
+  let found_first = false;
+  for (let i = 0; i < option.length; i++) {
+    let txtValue = option[i].textContent;
+    if (txtValue.toUpperCase().indexOf(filter) > -1) {
+      option[i].style.display = "";
+      if (!found_first) {
+        select.selectedIndex = i;
+        found_first = true;
+      }
+    } else {
+      option[i].style.display = "none";
+      if (option[i].hasAttribute("selected")) {
+        option[i].removeAttribute("selected");
+      }
+    }
+  }
+}
+
 if (Cookies.get("id") && Cookies.get("type")) {
   if (Cookies.get("type") === "teacher" && Cookies.get("teacher")) {
     make_teacher_table(Cookies.get("id"), Cookies.get("teacher"));
@@ -234,5 +281,5 @@ if (Cookies.get("id") && Cookies.get("type")) {
   }
 } else {
   document.getElementById("forms").removeAttribute("hidden");
-  load_links();
+  load_pdfs();
 }

templates/404.html

@@ -0,0 +1,11 @@
+{% extends "base.html" %} {% block title %}Pagina non trovata{% endblock %} {%
+block head %}
+<style>
+  main {
+    text-align: center;
+  }
+</style>
+{% endblock %} {% block content %}
+<h1>404 Pagina non trovata</h1>
+<p>La pagina che stai cercando non esiste.</p>
+{% endblock %}

templates/base.html

@@ -0,0 +1,29 @@
+<!doctype html>
+<html lang="it">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <title>{% block title %}{% endblock %}</title>
+    <link
+      href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
+      rel="stylesheet"
+    />
+    <link rel="icon" type="image/png" href="/static/favicon.png" />
+    <link rel="manifest" href="/static/app.webmanifest" />
+    <script async src="https://cdn.jsdelivr.net/npm/pwacompat" crossorigin="anonymous"></script>
+    {% block head %}{% endblock %}
+  </head>
+  <body>
+    <main class="container">{% block content %}{% endblock %}</main>
+    <footer class="container">
+      <p>
+        Codice rilasciato sotto licenza
+        <a
+          href="https://git.riefolo.me/mariano/orario-scolastico-itet/src/branch/master/LICENSE"
+          target="_blank"
+          >MPL 2.0</a
+        >
+      </p>
+    </footer>
+  </body>
+</html>

templates/index.html

@@ -1,86 +1,94 @@
-<!doctype html>
-<html lang="it">
-  <head>
-    <meta charset="UTF-8" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <title>Orario scolastico</title>
-    <link
-      href="https://cdn.jsdelivr.net/npm/@picocss/pico@2/css/pico.min.css"
-      rel="stylesheet"
-    />
-    <script src="https://cdn.jsdelivr.net/npm/js-cookie@3.0.5/dist/js.cookie.min.js"></script>
-    <script src="/static/index.js" defer></script>
-  </head>
-  <body>
-    <main class="container">
-      <noscript>
-        <h1>
-          Per utilizzare questa applicazione è necessario abilitare JavaScript.
-        </h1>
-      </noscript>
-      <div id="forms" hidden>
-        <form id="form-pdf">
-          <fieldset>
-            <label id="links-label" aria-busy="true"
-              >Quale orario vuoi usare?</label
-            >
-            <select id="links" onchange="select_pdf()" required>
-              <option selected disabled value="none">
-                Seleziona un orario
-              </option>
-            </select>
-          </fieldset>
-        </form>
-        <form id="form-type" hidden>
-          <formfield>
-            <label>Sei un professore o uno studente?</label>
-            <select id="type" onchange="select_type()">
-              <option selected disabled value="none">
-                Seleziona una categoria
-              </option>
-              <option value="teacher">Professore</option>
-              <option value="student">Studente</option>
-            </select>
-          </formfield>
-        </form>
-        <form id="form-teacher" onsubmit="return select_teacher()" hidden>
-          <formfield>
-            <label id="teacher-label" aria-busy="true"
-              >Seleziona il tuo cognome</label
-            >
-            <input id="teacher" type="text" list="teachers" />
-            <datalist id="teachers"></datalist>
-          </formfield>
-          <input type="submit" value="Continua" />
-        </form>
-        <form id="form-classes" hidden>
-          <formfield>
-            <label id="class-label" aria-busy="true"
-              >Seleziona la tua classe</label
-            >
-            <select id="year" onchange="load_section()">
-              <option selected disabled value="none">Seleziona l'anno</option>
-            </select>
-            <select id="section" onchange="load_major()">
-              <option selected disabled value="none">
-                Seleziona la sezione
-              </option>
-            </select>
-            <select id="major" onchange="select_class()">
-              <option selected disabled value="none">
-                Seleziona l'indirizzo
-              </option>
-            </select>
-            <input type="submit" value="Continua" />
-          </formfield>
-        </form>
-      </div>
-      <div id="dashboard" hidden>
-        <table id="table" class="striped" aria-busy="true"></table>
-        <form>
-          <input type="submit" onclick="delete_cookies()" value="Reimposta" />
-        </form>
-      </div>
-    </main>
-  </body>
-</html>
+{% extends "base.html" %} {% block title %}Orario Scolastico{% endblock %} {%
+block head %}
+<script src="https://cdn.jsdelivr.net/npm/js-cookie@3.0.5/dist/js.cookie.min.js"></script>
+<script src="/static/index.js" defer></script>
+<style>
+  @media (max-width: 1279px) {
+    table thead tr {
+      display: none;
+    }
+
+    table td {
+      display: block;
+    }
+
+    table tr {
+      counter-set: column;
+    }
+
+    table tr td {
+      counter-increment: column;
+    }
+
+    table td::before {
+      content: counter(column) " ora: ";
+    }
+  }
+
+  #table-title {
+    text-align: center;
+  }
+</style>
+{% endblock %} {%block content %}
+<noscript>
+  <h1>Per utilizzare questa applicazione è necessario abilitare JavaScript.</h1>
+</noscript>
+<div id="forms" hidden>
+  <form id="form-pdf">
+    <fieldset>
+      <label id="pdf-label" aria-busy="true">Seleziona il calendario</label>
+      <select id="pdf" onchange="select_pdf()" required>
+        <option selected disabled value="none">Seleziona un'opzione</option>
+      </select>
+    </fieldset>
+  </form>
+  <form id="form-type" hidden>
+    <formfield>
+      <label>Seleziona cosa visualizzare</label>
+      <select id="type" onchange="select_type()">
+        <option selected disabled value="none">Seleziona un'opzione</option>
+        <option value="teacher">Orario docente</option>
+        <option value="student">Orario classe</option>
+      </select>
+    </formfield>
+  </form>
+  <form id="form-teacher" onsubmit="return select_teacher()" hidden>
+    <formfield>
+      <label id="teacher-label" aria-busy="true">Seleziona docente</label>
+      <input
+        id="teacher"
+        type="text"
+        oninput="filter_teachers()"
+        placeholder="Filtra"
+      />
+      <select id="teachers"></select>
+    </formfield>
+    <input type="submit" value="Continua" />
+  </form>
+  <form id="form-classes" hidden>
+    <formfield>
+      <label id="class-label" aria-busy="true">Seleziona la tua classe</label>
+      <select id="year" onchange="load_section()">
+        <option selected disabled value="none">Seleziona l'anno</option>
+      </select>
+      <select id="section" onchange="load_major()">
+        <option selected disabled value="none">Seleziona la sezione</option>
+      </select>
+      <select id="major" onchange="select_class()">
+        <option selected disabled value="none">Seleziona l'indirizzo</option>
+      </select>
+      <input type="submit" value="Continua" />
+    </formfield>
+  </form>
+</div>
+<div id="dashboard" hidden>
+  <h1 id="table-title"></h1>
+  <table id="table" class="striped" aria-busy="true"></table>
+  <form>
+    <input type="submit" onclick="delete_cookies()" value="Reimposta" />
+  </form>
+</div>
+<dialog id="error-dialog">
+  <p id="error">Errore: non è stato possibile caricare l'orario.</p>
+</dialog>
+{% endblock %}