use std::collections::HashMap; use std::path::PathBuf; use std::sync::{Arc, Mutex}; use tera::{GlobalFn, Value, from_value, to_value, Result}; use content::{Page, Section}; use config::Config; use utils::site::resolve_internal_link; use taxonomies::Taxonomy; use imageproc; macro_rules! required_arg { ($ty: ty, $e: expr, $err: expr) => { match $e { Some(v) => match from_value::<$ty>(v.clone()) { Ok(u) => u, Err(_) => return Err($err.into()) }, None => return Err($err.into()) } }; } macro_rules! optional_arg { ($ty: ty, $e: expr, $err: expr) => { match $e { Some(v) => match from_value::<$ty>(v.clone()) { Ok(u) => Some(u), Err(_) => return Err($err.into()) }, None => None } }; } pub fn make_trans(config: Config) -> GlobalFn { let translations_config = config.translations; let default_lang = config.default_language.clone(); Box::new(move |args| -> Result { let key = required_arg!(String, args.get("key"), "`trans` requires a `key` argument."); let lang = optional_arg!( String, args.get("lang"), "`trans`: `lang` must be a string." ).unwrap_or_else(|| default_lang.clone()); let translations = &translations_config[lang.as_str()]; Ok(to_value(&translations[key.as_str()]).unwrap()) }) } pub fn make_get_page(all_pages: &HashMap) -> GlobalFn { let mut pages = HashMap::new(); for page in all_pages.values() { pages.insert(page.file.relative.clone(), page.clone()); } Box::new(move |args| -> Result { let path = required_arg!( String, args.get("path"), "`get_page` requires a `path` argument with a string value" ); match pages.get(&path) { Some(p) => Ok(to_value(p).unwrap()), None => Err(format!("Page `{}` not found.", path).into()) } }) } pub fn make_get_section(all_sections: &HashMap) -> GlobalFn { let mut sections = HashMap::new(); for section in all_sections.values() { if section.file.components == vec!["rebuild".to_string()] { //println!("Setting sections:\n{:#?}", section.pages[0]); } sections.insert(section.file.relative.clone(), section.clone()); } Box::new(move |args| -> Result { let path = required_arg!( String, args.get("path"), "`get_section` requires a `path` argument with a string value" ); //println!("Found {:#?}", sections.get(&path).unwrap().pages[0]); match sections.get(&path) { Some(p) => Ok(to_value(p).unwrap()), None => Err(format!("Section `{}` not found.", path).into()) } }) } pub fn make_get_url(permalinks: HashMap, config: Config) -> GlobalFn { Box::new(move |args| -> Result { let cachebust = args .get("cachebust") .map_or(false, |c| { from_value::(c.clone()).unwrap_or(false) }); let trailing_slash = args .get("trailing_slash") .map_or(false, |c| { from_value::(c.clone()).unwrap_or(false) }); let path = required_arg!( String, args.get("path"), "`get_url` requires a `path` argument with a string value" ); if path.starts_with("./") { match resolve_internal_link(&path, &permalinks) { Ok(url) => Ok(to_value(url).unwrap()), Err(_) => Err(format!("Could not resolve URL for link `{}` not found.", path).into()) } } else { // anything else let mut permalink = config.make_permalink(&path); if !trailing_slash && permalink.ends_with('/') { permalink.pop(); // Removes the slash } if cachebust { permalink = format!("{}?t={}", permalink, config.build_timestamp.unwrap()); } Ok(to_value(permalink).unwrap()) } }) } pub fn make_get_taxonomy(all_taxonomies: Vec) -> GlobalFn { let mut taxonomies = HashMap::new(); for taxonomy in all_taxonomies { taxonomies.insert(taxonomy.kind.name.clone(), taxonomy); } Box::new(move |args| -> Result { let kind = required_arg!( String, args.get("kind"), "`get_taxonomy` requires a `kind` argument with a string value" ); let container = match taxonomies.get(&kind) { Some(c) => c, None => return Err( format!("`get_taxonomy` received an unknown taxonomy as kind: {}", kind).into() ), }; Ok(to_value(container).unwrap()) }) } pub fn make_get_taxonomy_url(all_taxonomies: Vec) -> GlobalFn { let mut taxonomies = HashMap::new(); for taxonomy in all_taxonomies { taxonomies.insert(taxonomy.kind.name.clone(), taxonomy); } Box::new(move |args| -> Result { let kind = required_arg!( String, args.get("kind"), "`get_taxonomy_url` requires a `kind` argument with a string value" ); let name = required_arg!( String, args.get("name"), "`get_taxonomy_url` requires a `name` argument with a string value" ); let container = match taxonomies.get(&kind) { Some(c) => c, None => return Err( format!("`get_taxonomy_url` received an unknown taxonomy as kind: {}", kind).into() ) }; for item in &container.items { if item.name == name { return Ok(to_value(item.permalink.clone()).unwrap()); } } Err( format!("`get_taxonomy_url`: couldn't find `{}` in `{}` taxonomy", name, kind).into() ) }) } pub fn make_resize_image(imageproc: Arc>) -> GlobalFn { static DEFAULT_OP: &'static str = "fill"; const DEFAULT_Q: u8 = 75; Box::new(move |args| -> Result { let path = required_arg!( String, args.get("path"), "`resize_image` requires a `path` argument with a string value" ); let width = optional_arg!( u32, args.get("width"), "`resize_image`: `width` must be a non-negative integer" ); let height = optional_arg!( u32, args.get("height"), "`resize_image`: `height` must be a non-negative integer" ); let op = optional_arg!( String, args.get("op"), "`resize_image`: `op` must be a string" ).unwrap_or_else(|| DEFAULT_OP.to_string()); let quality = optional_arg!( u8, args.get("quality"), "`resize_image`: `quality` must be a number" ).unwrap_or(DEFAULT_Q); if quality == 0 || quality > 100 { return Err("`resize_image`: `quality` must be in range 1-100".to_string().into()); } let mut imageproc = imageproc.lock().unwrap(); if !imageproc.source_exists(&path) { return Err(format!("`resize_image`: Cannot find path: {}", path).into()); } let imageop = imageproc::ImageOp::from_args(path.clone(), &op, width, height, quality) .map_err(|e| format!("`resize_image`: {}", e))?; let url = imageproc.insert(imageop); to_value(url).map_err(|err| err.into()) }) } #[cfg(test)] mod tests { use super::{make_get_url, make_get_taxonomy, make_get_taxonomy_url, make_trans}; use std::collections::HashMap; use tera::to_value; use config::{Config, Taxonomy as TaxonomyConfig}; use taxonomies::{Taxonomy, TaxonomyItem}; #[test] fn can_add_cachebust_to_url() { let config = Config::default(); let static_fn = make_get_url(HashMap::new(), config); let mut args = HashMap::new(); args.insert("path".to_string(), to_value("app.css").unwrap()); args.insert("cachebust".to_string(), to_value(true).unwrap()); assert_eq!(static_fn(args).unwrap(), "http://a-website.com/app.css?t=1"); } #[test] fn can_add_trailing_slashes() { let config = Config::default(); let static_fn = make_get_url(HashMap::new(), config); let mut args = HashMap::new(); args.insert("path".to_string(), to_value("app.css").unwrap()); args.insert("trailing_slash".to_string(), to_value(true).unwrap()); assert_eq!(static_fn(args).unwrap(), "http://a-website.com/app.css/"); } #[test] fn can_add_slashes_and_cachebust() { let config = Config::default(); let static_fn = make_get_url(HashMap::new(), config); let mut args = HashMap::new(); args.insert("path".to_string(), to_value("app.css").unwrap()); args.insert("trailing_slash".to_string(), to_value(true).unwrap()); args.insert("cachebust".to_string(), to_value(true).unwrap()); assert_eq!(static_fn(args).unwrap(), "http://a-website.com/app.css/?t=1"); } #[test] fn can_link_to_some_static_file() { let config = Config::default(); let static_fn = make_get_url(HashMap::new(), config); let mut args = HashMap::new(); args.insert("path".to_string(), to_value("app.css").unwrap()); assert_eq!(static_fn(args).unwrap(), "http://a-website.com/app.css"); } #[test] fn can_get_taxonomy() { let taxo_config = TaxonomyConfig { name: "tags".to_string(), ..TaxonomyConfig::default() }; let tag = TaxonomyItem::new( "Progamming", "tags", &Config::default(), vec![], ); let tags = Taxonomy { kind: taxo_config, items: vec![tag], }; let static_fn = make_get_taxonomy(vec![tags.clone()]); // can find it correctly let mut args = HashMap::new(); args.insert("kind".to_string(), to_value("tags").unwrap()); assert_eq!(static_fn(args).unwrap(), to_value(&tags).unwrap()); // and errors if it can't find it let mut args = HashMap::new(); args.insert("kind".to_string(), to_value("something-else").unwrap()); assert!(static_fn(args).is_err()); } #[test] fn can_get_taxonomy_url() { let taxo_config = TaxonomyConfig { name: "tags".to_string(), ..TaxonomyConfig::default() }; let tag = TaxonomyItem::new( "Programming", "tags", &Config::default(), vec![], ); let tags = Taxonomy { kind: taxo_config, items: vec![tag], }; let static_fn = make_get_taxonomy_url(vec![tags.clone()]); // can find it correctly let mut args = HashMap::new(); args.insert("kind".to_string(), to_value("tags").unwrap()); args.insert("name".to_string(), to_value("Programming").unwrap()); assert_eq!(static_fn(args).unwrap(), to_value("http://a-website.com/tags/programming/").unwrap()); // and errors if it can't find it let mut args = HashMap::new(); args.insert("kind".to_string(), to_value("tags").unwrap()); args.insert("name".to_string(), to_value("random").unwrap()); assert!(static_fn(args).is_err()); } #[test] fn can_translate_a_string() { let trans_config = r#" base_url = "https://remplace-par-ton-url.fr" default_language = "fr" [translations] [translations.fr] title = "Un titre" [translations.en] title = "A title" "#; let config = Config::parse(trans_config).unwrap(); let static_fn = make_trans(config); let mut args = HashMap::new(); args.insert("key".to_string(), to_value("title").unwrap()); assert_eq!(static_fn(args.clone()).unwrap(), "Un titre"); args.insert("lang".to_string(), to_value("en").unwrap()); assert_eq!(static_fn(args.clone()).unwrap(), "A title"); args.insert("lang".to_string(), to_value("fr").unwrap()); assert_eq!(static_fn(args.clone()).unwrap(), "Un titre"); } }