138 lines
4.2 KiB
Rust
138 lines
4.2 KiB
Rust
use comrak;
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use glob::glob;
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use inflector::Inflector;
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use std::fs::File;
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use std::io::prelude::*;
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use std::path::PathBuf;
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use std::time::SystemTime;
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#[derive(Clone, Debug, Serialize, Deserialize)]
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/// Structure for representing a wish list
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pub struct List {
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/// The ID of the list (unique string)
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pub id: String,
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/// The index of the list (unique number)
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pub index: i8,
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/// The raw list data
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pub data: String,
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/// The time the list was last modified
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pub mtime: SystemTime,
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/// The name of the list, i.e. the person it is for
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pub name: String,
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/// The path to the list file
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path: PathBuf
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}
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impl List {
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pub fn to_html(&self) -> String {
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let mut options = comrak::ComrakOptions::default();
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options.ext_strikethrough = true;
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options.ext_tagfilter = true;
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options.ext_autolink = true;
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options.ext_tasklist = true;
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comrak::markdown_to_html(&self.data, &options)
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}
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pub fn update_data(&mut self, data : &String) {
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let mut file = File::create(&self.path)
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.expect(&format!("Cannot open list file {}",
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self.path.to_str().unwrap()));
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file.write_all(data.as_bytes())
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.expect(&format!("Cannot write list file {}",
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self.path.to_str().unwrap()));
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self.data = data.clone();
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let metadata = file.metadata().unwrap();
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self.mtime = metadata.modified().unwrap();
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}
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pub fn load_all(list_path: Option<&str>) -> Vec<Self> {
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let mut lists : Vec<List> = vec![];
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let mut index = 0;
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let path_glob = match list_path {
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Some(dir) => format!("{}/lists/*.list", dir),
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None => format!("lists/*.list")
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};
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for entry in glob(path_glob.as_str()).unwrap().filter_map(Result::ok) {
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let file_name = entry.file_name().unwrap().to_str().unwrap();
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let name = match file_name.find('.') {
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Some(index) => &file_name[0..index],
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None => "unknown"
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};
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let mut data = String::new();
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let mut file = File::open(&entry)
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.expect(&format!("Cannot open list file {}", file_name));
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file.read_to_string(&mut data)
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.expect(&format!("Cannot read list file {}", file_name));
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let metadata = file.metadata()
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.expect(&format!("Cannot get metadata of list file {}", file_name));
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let mut list = List {
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id: String::from(name),
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index : index,
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data: data,
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mtime: metadata.modified().unwrap(),
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name: String::from(name).to_title_case(),
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path: entry.clone()
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};
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lists.push(list);
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index += 1;
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}
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lists
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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#[test]
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fn loads_all_lists() {
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let lists = List::load_all(Some("test"));
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let list_ids: Vec<&str> = lists.iter()
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.map(|list| list.id.as_ref()).collect();
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assert_eq!(list_ids, vec!["test", "updatable"]);
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}
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#[test]
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fn converts_to_html() {
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let lists = List::load_all(Some("test"));
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let list = lists.iter()
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.find(|list| list.id == "test")
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.unwrap();
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assert_eq!(list.to_html(), r#"<p>This is a test list</p>
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<ul>
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<li>One</li>
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<li>Two</li>
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<li>Three</li>
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</ul>
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"#);
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}
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#[test]
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fn updates_data() {
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let mut lists = List::load_all(Some("test"));
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let list = lists.iter_mut()
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.find(|list| list.id == "updatable")
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.unwrap();
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assert_eq!(list.data, "Some content");
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// Update the data van verify it has changed
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let new_data = "New content";
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list.update_data(&String::from(new_data));
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assert_eq!(list.data, new_data);
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// Verify that the data is written to the file of the list by
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// loading them again
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let mut lists = List::load_all(Some("test"));
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let list = lists.iter_mut()
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.find(|list| list.id == "updatable")
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.unwrap();
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assert_eq!(list.data, new_data);
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// ... and change it back again
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list.update_data(&String::from("Some content"));
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}
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}
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