Import habits from JSON file.

src/habitmgr.rs

@@ -16,6 +16,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+use std::path::PathBuf;
+use std::fs::File;
+use std::io::{BufReader, BufRead};
+
 use crate::habit::Habit;
 
 pub struct HabitMgr
@@ -25,11 +29,25 @@ pub struct HabitMgr
 
 impl HabitMgr
 {
-	pub fn new() -> Self
+	pub fn new(actives_p:&PathBuf) -> Self
 	{
+		let actives_f = File::open(&actives_p)
+			.unwrap_or_else(|e| {
+				panic!("Error opening file {}:\n{}", actives_p.display(), e);
+			});
+		let reader = BufReader::new(&actives_f);
+		//let imports:Vec<Habit> = serde_json::from_reader(reader).unwrap();
+		let mut imports:Vec<Habit> = Vec::new();
+
+		for (_i, line) in reader.lines().enumerate()
+		{
+			let habit:Habit = serde_json::from_str(line.unwrap().as_str()).unwrap();
+			imports.push(habit);
+		}
+
 		Self
 		{
-			habits: Vec::new(),
+			habits: imports,
 		}
 	}
 

src/main.rs

@@ -21,6 +21,7 @@ use structopt::clap::AppSettings;
 use std::env;
 use std::path::PathBuf;
 use std::fs;
+use std::fs::File;
 
 mod habit;
 mod habitmgr;
@@ -75,7 +76,7 @@ fn main()
 	let data_dir =
 		PathBuf::from(
 			env::var("XDG_DATA_HOME")
-			.unwrap_or_else(|err| { panic!("Error: {}", err) }))
+			.unwrap_or_else(|e| { panic!("Error: {}", e) }))
 		.join("htracker");
 
 	if data_dir.exists() && data_dir.is_file()
@@ -86,11 +87,21 @@ fn main()
 	else if !data_dir.exists()
 	{
 		println!("First run: files will be stored in {}", data_dir.display());
-		fs::create_dir_all(data_dir)
-			.unwrap_or_else(|err| { panic!("Filesystem error: {}", err) });
+		fs::create_dir_all(&data_dir)
+			.unwrap_or_else(|e| { panic!("Filesystem error: {}", e) });
 	}
 
-	let mut hmgr = HabitMgr::new();
+	let actives_p:PathBuf = data_dir.clone().join("active_habits.json");
+	if !actives_p.is_file()
+	{
+		File::create(&actives_p)
+			.unwrap_or_else(|e| {
+				panic!("Error creating file {}:\n{}",
+							 actives_p.display(), e)
+			});
+	}
+
+	let mut hmgr = HabitMgr::new(&actives_p);
 
 	match opts.cmd
 	{