create structs to model habit tracking data

Cargo.toml

@@ -12,6 +12,7 @@ default = ["console_error_panic_hook"]
 
 [dependencies]
 wasm-bindgen = "0.2.84"
+chrono = { version = "0.4.31", features = [ "clock" ] }
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires

src/lib.rs

@@ -1,13 +1,4 @@
 mod utils;
+pub mod models;
 
 use wasm_bindgen::prelude::*;
-
-#[wasm_bindgen]
-extern "C" {
-    fn alert(s: &str);
-}
-
-#[wasm_bindgen]
-pub fn greet() {
-    alert("Hello, rabbit!");
-}

src/models.rs

@@ -0,0 +1,9 @@
+pub mod category;
+pub mod series;
+pub mod series_point;
+pub mod series_type;
+
+pub use category::*;
+pub use series::*;
+pub use series_point::*;
+pub use series_type::*;

src/models/category.rs

@@ -0,0 +1,22 @@
+use crate::models::Series;
+
+#[derive(Debug)]
+pub struct Category {
+    id: i32,
+    name: String,
+    series: Vec<Series>,
+}
+
+impl Category {
+    pub fn new(id: i32, name: String) -> Category {
+        Category {
+            id,
+            name,
+            series: vec![],
+        }
+    }
+
+    pub fn add_series(&mut self, series: Series) {
+        self.series.push(series);
+    }
+}

src/models/series.rs

@@ -0,0 +1,27 @@
+use chrono;
+use super::series_point::SeriesPoint;
+
+#[derive(Debug)]
+pub struct Series {
+    id: i32,
+    name: String,
+    repeat: chrono::Duration,
+    good: bool,
+    points: Vec<SeriesPoint>,
+}
+
+impl Series {
+    pub fn new(id: i32, name: String, repeat: chrono::Duration, good: bool) -> Series {
+        Series {
+            id,
+            name,
+            repeat,
+            good,
+            points: vec![],
+        }
+    }
+
+    pub fn add_point(&mut self, point: SeriesPoint) {
+        self.points.push(point);
+    }
+}

src/models/series_point.rs

@@ -0,0 +1,19 @@
+use chrono;
+use super::series_type::SeriesType;
+
+#[derive(Debug)]
+pub struct SeriesPoint {
+    id: i32,
+    timestamp: chrono::NaiveDateTime,
+    value: SeriesType,
+}
+
+impl SeriesPoint {
+    pub fn new(id: i32, timestamp: chrono::NaiveDateTime, value: SeriesType) -> SeriesPoint {
+        SeriesPoint {
+            id,
+            timestamp,
+            value
+        }
+    }
+}

src/models/series_type.rs

@@ -0,0 +1,7 @@
+#[derive(Debug)]
+pub enum SeriesType {
+    Bool(bool),
+    Count(u32),
+    Signed(i32),
+    Float(f32),
+}