From 859ac5d3e49bc9a123df3f5a74b43d2281a3bed1 Mon Sep 17 00:00:00 2001
From: Akshay <nerdy@peppe.rs>
Date: Wed, 15 Jul 2020 20:39:46 +0530
Subject: add utils for auto habits

auto trackable habits can be added, but not tracked as of this commit
---
 src/app.rs   | 58 ++++++++++++++++++++++++++++++++++++----------------------
 src/utils.rs | 28 +++++++++++++++++++---------
 2 files changed, 55 insertions(+), 31 deletions(-)

diff --git a/src/app.rs b/src/app.rs
index 2d83714..81a574a 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -2,6 +2,7 @@ use std::default::Default;
 use std::f64;
 use std::fs::{File, OpenOptions};
 use std::io::prelude::*;
+use std::path::PathBuf;
 
 use cursive::direction::{Absolute, Direction};
 use cursive::event::{Event, EventResult, Key};
@@ -161,34 +162,47 @@ impl App {
     }
 
     pub fn load_state() -> Self {
-        let data_file = utils::data_file();
-        if let Ok(ref mut file) = File::open(data_file) {
-            let mut j = String::new();
-            file.read_to_string(&mut j);
-            return App {
-                habits: serde_json::from_str(&j).unwrap(),
-                ..Default::default()
-            };
-        } else {
-            Self::new()
-        }
+        let (regular_f, auto_f) = (utils::habit_file(), utils::auto_habit_file());
+        let read_from_file = |file: PathBuf| -> Vec<Box<dyn HabitWrapper>> {
+            if let Ok(ref mut f) = File::open(file) {
+                let mut j = String::new();
+                f.read_to_string(&mut j);
+                return serde_json::from_str(&j).unwrap();
+            } else {
+                return Vec::new();
+            }
+        };
+
+        let mut regular = read_from_file(regular_f);
+        let auto = read_from_file(auto_f);
+        regular.extend(auto);
+        return App {
+            habits: regular,
+            ..Default::default()
+        };
     }
 
     // this function does IO
     // TODO: convert this into non-blocking async function
     fn save_state(&self) {
-        let j = serde_json::to_string_pretty(&self.habits).unwrap();
-        let data_file = utils::data_file();
-
-        match OpenOptions::new()
-            .write(true)
-            .create(true)
-            .truncate(true)
-            .open(data_file)
-        {
-            Ok(ref mut file) => file.write_all(j.as_bytes()).unwrap(),
-            Err(_) => panic!("Unable to write!"),
+        let (regular, auto): (Vec<_>, Vec<_>) = self.habits.iter().partition(|&x| !x.is_auto());
+        let (regular_f, auto_f) = (utils::habit_file(), utils::auto_habit_file());
+
+        let write_to_file = |data: Vec<&Box<dyn HabitWrapper>>, file: PathBuf| {
+            let j = serde_json::to_string_pretty(&data).unwrap();
+            match OpenOptions::new()
+                .write(true)
+                .create(true)
+                .truncate(true)
+                .open(file)
+            {
+                Ok(ref mut f) => f.write_all(j.as_bytes()).unwrap(),
+                Err(_) => panic!("Unable to write!"),
+            };
         };
+
+        write_to_file(regular, regular_f);
+        write_to_file(auto, auto_f);
     }
 
     pub fn parse_command(&mut self, input: &str) {
diff --git a/src/utils.rs b/src/utils.rs
index 1d56377..e6ec6ac 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -34,13 +34,23 @@ pub fn load_configuration_file() -> AppConfig {
     };
 }
 
-pub fn data_file() -> PathBuf {
-    if let Some(proj_dirs) = ProjectDirs::from("rs", "nerdypepper", "dijo") {
-        let mut data_file = PathBuf::from(proj_dirs.data_dir());
-        fs::create_dir_all(&data_file);
-        data_file.push("habit_record.json");
-        return data_file;
-    } else {
-        panic!("Invalid home directory!")
-    };
+fn project_dirs() -> ProjectDirs {
+    ProjectDirs::from("rs", "nerdypepper", "dijo")
+        .unwrap_or_else(|| panic!("Invalid home directory!"))
+}
+
+pub fn habit_file() -> PathBuf {
+    let proj_dirs = project_dirs();
+    let mut data_file = PathBuf::from(proj_dirs.data_dir());
+    fs::create_dir_all(&data_file);
+    data_file.push("habit_record.json");
+    return data_file;
+}
+
+pub fn auto_habit_file() -> PathBuf {
+    let proj_dirs = project_dirs();
+    let mut data_file = PathBuf::from(proj_dirs.data_dir());
+    fs::create_dir_all(&data_file);
+    data_file.push("habit_record[auto].json");
+    return data_file;
 }
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