Task: doc and more methods

Cargo.lock

@@ -9,6 +9,17 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "async-trait"
+version = "0.1.42"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d3a45e77e34375a7923b1e8febb049bb011f064714a8e17a1a616fef01da13d"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -62,6 +73,20 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
+[[package]]
+name = "chrono"
+version = "0.4.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "670ad68c9088c2a963aaa298cb369688cf3f9465ce5e2d4ca10e6e0098a1ce73"
+dependencies = [
+ "libc",
+ "num-integer",
+ "num-traits",
+ "serde",
+ "time",
+ "winapi",
+]
+
 [[package]]
 name = "core-foundation"
 version = "0.9.1"
@@ -409,13 +434,18 @@ dependencies = [
 name = "my-tasks"
 version = "0.1.0"
 dependencies = [
+ "async-trait",
  "bitflags",
+ "chrono",
  "env_logger",
  "log",
  "minidom",
  "reqwest",
+ "serde",
+ "serde_json",
  "tokio",
  "url",
+ "uuid",
 ]
 
 [[package]]
@@ -445,6 +475,35 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "num-integer"
+version = "0.1.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d2cc698a63b549a70bc047073d2949cce27cd1c7b0a4a862d08a8031bc2801db"
+dependencies = [
+ "autocfg",
+ "num-traits",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9a64b1ec5cda2586e284722486d802acf1f7dbdc623e2bfc57e65ca1cd099290"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "num_cpus"
+version = "1.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
+dependencies = [
+ "hermit-abi",
+ "libc",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.5.2"
@@ -715,6 +774,20 @@ name = "serde"
 version = "1.0.123"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "92d5161132722baa40d802cc70b15262b98258453e85e5d1d365c757c73869ae"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.123"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9391c295d64fc0abb2c556bad848f33cb8296276b1ad2677d1ae1ace4f258f31"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "serde_json"
@@ -799,6 +872,16 @@ dependencies = [
  "once_cell",
 ]
 
+[[package]]
+name = "time"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca8a50ef2360fbd1eeb0ecd46795a87a19024eb4b53c5dc916ca1fd95fe62438"
+dependencies = [
+ "libc",
+ "winapi",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.1.1"
@@ -825,6 +908,7 @@ dependencies = [
  "libc",
  "memchr",
  "mio",
+ "num_cpus",
  "pin-project-lite",
  "tokio-macros",
 ]
@@ -940,6 +1024,16 @@ dependencies = [
  "idna",
  "matches",
  "percent-encoding",
+ "serde",
+]
+
+[[package]]
+name = "uuid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
+dependencies = [
+ "getrandom",
 ]
 
 [[package]]

Cargo.toml

@@ -17,3 +17,5 @@ bitflags = "1.2"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
 async-trait = "0.1"
+chrono = { version = "0.4", features = ["serde"] }
+uuid = { version = "0.8", features = ["v4"] }

src/task.rs

@@ -1,22 +1,59 @@
+use chrono::{Utc, DateTime};
+
 use serde::{Deserialize, Serialize};
 
-pub type TaskId = String; // This is an HTML "etag"
+// TODO: turn into this one day
+//      pub type TaskId = String; // This is an HTML "etag"
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct TaskId {
+    content: String,
+}
+impl TaskId{
+    pub fn new() -> Self {
+        let u = uuid::Uuid::new_v4().to_hyphenated().to_string();
+        Self { content:u }
+    }
+}
 
 /// A to-do task
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct Task {
     id: TaskId,
     name: String,
+    last_modified: DateTime<Utc>,
     completed: bool,
 }
 
 impl Task {
+    /// Create a new Task
+    pub fn new(name: String, last_modified: DateTime<Utc>) -> Self {
+        Self {
+            name, last_modified,
+            id: TaskId::new(),
+            completed: false
+        }
+    }
+
     pub fn id(&self) -> &TaskId     { &self.id          }
     pub fn name(&self) -> &str      { &self.name        }
     pub fn completed(&self) -> bool { self.completed    }
+    pub fn last_modified(&self) -> DateTime<Utc> { self.last_modified }
 
-    pub fn set_completed(&mut self) {
+    fn update_last_modified(&mut self) {
+        self.last_modified = Utc::now();
+    }
+
+    /// Rename a task.
+    /// This updates its "last modified" field
+    pub fn set_name(&mut self, new_name: String) {
+        self.update_last_modified();
+        self.name = new_name;
+    }
+
+    pub fn set_completed(&mut self, new_value: bool) {
         // TODO: either require a reference to the DataSource, so that it is aware
         //       or change a flag here, and the DataSource will be able to check the flags of all its content (but then the Calendar should only give a reference/Arc, not a clone)
+        self.update_last_modified();
+        self.completed = new_value;
     }
-}
+}