Initial commit

src/lib.rs

@@ -0,0 +1,82 @@
+use actix_web::{dev::Server, middleware::Logger, web, App, HttpResponse, HttpServer};
+use chrono::{DateTime, Utc};
+use listenfd::ListenFd;
+use serde::{Deserialize, Serialize};
+use std::io::Error;
+use std::net::TcpListener;
+use uuid::Uuid;
+
+pub mod taskwarrior;
+
+#[derive(Deserialize)]
+struct TaskQuery {
+    filter: String,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+pub struct Task {
+    pub uuid: Uuid,
+    pub id: u32,
+    #[serde(with = "taskwarrior::tw_date_format")]
+    pub entry: DateTime<Utc>,
+    #[serde(with = "taskwarrior::tw_date_format")]
+    pub modified: DateTime<Utc>,
+    pub status: taskwarrior::Status,
+    pub description: String,
+    pub urgency: f64,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "taskwarrior::opt_tw_date_format"
+    )]
+    pub due: Option<DateTime<Utc>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "taskwarrior::opt_tw_date_format"
+    )]
+    pub end: Option<DateTime<Utc>>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub parent: Option<Uuid>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub project: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub recur: Option<taskwarrior::Recurrence>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub tags: Option<Vec<String>>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub contextswitch: Option<taskwarrior::ContextSwitchMetadata>,
+}
+
+async fn list_tasks(task_query: web::Query<TaskQuery>) -> Result<HttpResponse, Error> {
+    let tasks = taskwarrior::export(task_query.filter.split(' ').collect())?;
+
+    Ok(HttpResponse::Ok()
+        .content_type("application/json")
+        .body(serde_json::to_string(&tasks)?))
+}
+
+async fn health_check() -> HttpResponse {
+    HttpResponse::Ok().finish()
+}
+
+pub fn run(listener: TcpListener) -> Result<Server, std::io::Error> {
+    let mut server = HttpServer::new(|| {
+        App::new()
+            .wrap(Logger::default())
+            .route("/ping", web::get().to(health_check))
+            .route("/tasks", web::get().to(list_tasks))
+    })
+    .keep_alive(60)
+    .shutdown_timeout(60);
+
+    let mut listenfd = ListenFd::from_env();
+
+    server = if let Some(fdlistener) = listenfd.take_tcp_listener(0)? {
+        server.listen(fdlistener)?
+    } else {
+        server.listen(listener)?
+    };
+
+    Ok(server.run())
+}

src/main.rs

@@ -0,0 +1,22 @@
+extern crate dotenv;
+extern crate env_logger;
+extern crate listenfd;
+
+use contextswitch::run;
+use dotenv::dotenv;
+use std::env;
+use std::net::TcpListener;
+
+pub mod taskwarrior;
+
+#[actix_web::main]
+async fn main() -> std::io::Result<()> {
+    env::set_var("RUST_LOG", "actix_web=info");
+    env_logger::init();
+    dotenv().ok();
+
+    let port = env::var("PORT").unwrap_or("8000".to_string());
+
+    let listener = TcpListener::bind(format!("0.0.0.0:{}", port)).expect("Failed to bind port");
+    run(listener)?.await
+}

src/taskwarrior.rs

@@ -0,0 +1,146 @@
+use chrono::{DateTime, Utc};
+use serde::{de, Deserialize, Deserializer, Serialize};
+use serde_json;
+use std::io::Error;
+use std::process::Command;
+use std::str;
+use uuid::Uuid;
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum Recurrence {
+    Daily,
+    Weekly,
+    Monthly,
+    Yearly,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+#[serde(rename_all = "lowercase")]
+pub enum Status {
+    Pending,
+    Completed,
+    Recurring,
+    Deleted,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+pub struct ContextSwitchMetadata {
+    pub test: u32,
+}
+
+#[derive(Debug, Serialize, Deserialize, PartialEq)]
+pub struct Task {
+    pub uuid: Uuid,
+    pub id: u32,
+    #[serde(with = "tw_date_format")]
+    pub entry: DateTime<Utc>,
+    #[serde(with = "tw_date_format")]
+    pub modified: DateTime<Utc>,
+    pub status: Status,
+    pub description: String,
+    pub urgency: f64,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "opt_tw_date_format"
+    )]
+    pub due: Option<DateTime<Utc>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        with = "opt_tw_date_format"
+    )]
+    pub end: Option<DateTime<Utc>>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub parent: Option<Uuid>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub project: Option<String>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub recur: Option<Recurrence>,
+    #[serde(default, skip_serializing_if = "Option::is_none")]
+    pub tags: Option<Vec<String>>,
+    #[serde(
+        default,
+        skip_serializing_if = "Option::is_none",
+        deserialize_with = "deserialize_from_json"
+    )]
+    pub contextswitch: Option<ContextSwitchMetadata>,
+}
+
+fn deserialize_from_json<'de, D>(deserializer: D) -> Result<Option<ContextSwitchMetadata>, D::Error>
+where
+    D: Deserializer<'de>,
+{
+    let s: String = Deserialize::deserialize(deserializer)?;
+    serde_json::from_str(&s).map_err(de::Error::custom)
+}
+
+pub mod tw_date_format {
+    use chrono::{DateTime, TimeZone, Utc};
+    use serde::{self, Deserialize, Deserializer, Serializer};
+
+    const FORMAT: &'static str = "%Y%m%dT%H%M%SZ";
+
+    pub fn serialize<S>(date: &DateTime<Utc>, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        let s = format!("{}", date.format(FORMAT));
+        serializer.serialize_str(&s)
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<DateTime<Utc>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        Utc.datetime_from_str(&s, FORMAT)
+            .map_err(serde::de::Error::custom)
+    }
+}
+
+pub mod opt_tw_date_format {
+    use chrono::{DateTime, TimeZone, Utc};
+    use serde::{self, Deserialize, Deserializer, Serializer};
+
+    const FORMAT: &'static str = "%Y%m%dT%H%M%SZ";
+
+    pub fn serialize<S>(date: &Option<DateTime<Utc>>, serializer: S) -> Result<S::Ok, S::Error>
+    where
+        S: Serializer,
+    {
+        if let Some(ref d) = *date {
+            return serializer.serialize_str(&d.format(FORMAT).to_string());
+        }
+
+        serializer.serialize_none()
+    }
+
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<DateTime<Utc>>, D::Error>
+    where
+        D: Deserializer<'de>,
+    {
+        let s = String::deserialize(deserializer)?;
+        Utc.datetime_from_str(&s, FORMAT)
+            .map(Some)
+            .map_err(serde::de::Error::custom)
+    }
+}
+
+pub fn export(filters: Vec<&str>) -> Result<Vec<Task>, Error> {
+    let mut args = vec!["export"];
+    args.extend(filters);
+    let export_output = Command::new("task").args(args).output()?;
+
+    let tasks: Vec<Task> = serde_json::from_slice(&export_output.stdout)?;
+
+    return Ok(tasks);
+}
+
+pub fn add(add_args: Vec<&str>) -> Result<(), Error> {
+    let mut args = vec!["add"];
+    args.extend(add_args);
+    Command::new("task").args(args).output()?;
+    return Ok(());
+}