increment version number

mostly dead code removal
some formating

.gitignore

@@ -17,3 +17,8 @@ Cargo.lock
 # Added by cargo
 
 /target
+
+
+# config file
+.rusty_task.json
+Notes/

Cargo.toml

@@ -1,10 +1,18 @@
 [package]
 name = "rusty-tasks"
-version = "0.1.0"
+version = "0.1.3"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
 chrono = "0.4.26"
+clap = { version = "4.5.1", features = ["derive"] }
+comrak = "0.18.0"
+figment = { version = "0.10.10", features = ["env", "serde_json", "json"] }
 regex = "1.8.4"
+serde = { version = "1.0.164", features = ["serde_derive"] }
+serde_json = "1.0.97"
+resolve-path = "0.1.0"
+simple_logger = "4.3.3"
+log = "0.4.21"

README.md

@@ -1,26 +1,111 @@
 # Rusty-tasks
-A rewrite of an older CLI todo system without python and regex
 
-## Goals
+A personal task management system built on plain text and works in your favorite editor
 
-- [ ] BLAZING FAST!
-- [ ] replace python with rust
-- [ ] replace regex with a markdown parsing library
-- [ ] learn some rust along the way
 
-## Ideas
+## The General Idea
 
-If you've used the bullet journal technique before, think if this as the
+If you've used the bullet journal technique before, think of this as the
 digital, automated version of that.
 
-- Accessible from anywhere in the terminal (TMUX, bare shell, etc)
+- Accessible from anywhere in the terminal (TMUX, bare shell, etc.)
     * works really well with a drop-down terminal
-- Takes advantage of default editor (vim, emacs, etc)
+- Take advantage of your favorite editor (vim, Emacs, etc.)
-- Take advantage of Markdown for formatting
+- Take advantage of plain text formats (Markdown)
 - Organize tasks at different levels of urgency
     * Daily - Must get done now
     * Weekly - Must get done in the near future
-    * Monthly - I'm going to forget if I don't write it down but It's a ways away
+    * Monthly - I'm going to forget if I don't write it down, but It's a ways away
 - Every day start a new file 
     * files should be dated
-- Carry over uncompleted tasks from previous day
+- Carry over uncompleted tasks from the previous day
+
+
+## Installing 
+
+```bash
+git clone https://github.com/andrei-stoica/rusty-tasks.git
+cd rusty-task cargo install --path .
+```
+
+Alternatively, there is a binary download for AMD64 Linux machines available 
+on the [releases page](https://github.com/andrei-stoica/rusty-tasks/releases).
+Just drop that anywhere on your PATH. I recommend adding `~/bin` to your PATH
+and dropping the executable there.
+
+If you are not on an AMD64 Linux machine, you will need to build from source.
+I have not tested this on other platforms, so I hesitate to provide binaries
+for them.
+
+## Usage
+***WARNING:*** *This documentation can be ahead of the releases on the GH release page*
+```help
+Usage: rusty-tasks [OPTIONS]
+
+Options:
+  -c, --config <FILE>        set config file to use
+  -C, --current-config       show current config file
+  -d, --date <DATE>          view a specific date's file (format: YYYY-MM-DD)
+  -p, --previous <PREVIOUS>  view previous day's notes [default: 0]
+  -l, --list                 list closest files to date
+  -n, --number <NUMBER>      number of files to list [default: 5]
+  -L, --list-all             list closest files to date
+  -v, --verbose...           increase logging level
+  -h, --help                 Print help
+  -V, --version              Print version
+```
+
+Just use `rust-task` to access today's notes file.
+
+Use `rust-task -p <n>` to access a previous day's file where `<n>` is the number
+of days back you want to go. If a file does not exist for that day, it will
+default to the closest to that date. A value of 0 represents today's file.
+
+Alternatively, use `--date` or `-d` to specify a date specifically. Preferably
+in the format year-month-day, padding with zero is optional. However, if the
+year, or, year and month are omitted they will be filled in with the current
+date's year and month. For example, If the current date is `2024-2-30`, the
+string `4` will resolve to `2024-2-4`, and `1-4` will resolve to `2024-1-4`.
+
+Specify a custom config location with `-c`, otherwise, it will scan for a config
+in the locations specified in the [config section](#config). If no config
+exists it will create one. To see what config is being loaded you can use `-C`.
+
+To list your existing notes you can use `-L`. For a subset of these use
+`-l` combined with `-n` to specify the number of files to list. This will be
+the closest `n` files to the specified date, which is today by default. Specify
+the target date using the `-p` as mentioned earlier
+
+## Config
+
+The config should be located in the following locations:
+
+- `~/.config/rusty_task.json`
+- `~/.rusty_task.json`
+- `$PWD/.rusty_task.json`
+
+If there is no config it will be created at `~/.config/rusty_task.json`.
+
+Example config:
+```
+{
+  "editor": "nano",
+  "sections": [
+    "Daily",
+    "Weekly",
+    "Monthly"
+  ],
+  "notes_dir": "~/notes"
+}
+```
+
+- `editor` is the executable that will be launched to modify the notes file
+- `sections` is a list of Sections that will be carried over from the previous
+day's notes
+    * only uncompleted tasks are carried over
+    * You can use other sections for scratch space and other journaling tasks
+- `notes_dir` is the directory that stores your daily notes 
+    * this could be set to your obsidian vault if you want it to work with
+      all of your other notes (I recommend checking out [obsidian.nvim](https://github.com/epwalsh/obsidian.nvim)
+      if you want to interact with an obsidian vault in neovim)
+

src/cli/mod.rs

@@ -0,0 +1,104 @@
+use chrono::{Datelike, NaiveDate};
+use clap::Parser;
+
+#[derive(Parser, Debug)]
+#[command(version, about)]
+pub struct Args {
+    /// set config file to use
+    #[arg(short, long, value_name = "FILE")]
+    pub config: Option<String>,
+    /// show current config file
+    #[arg(short = 'C', long)]
+    pub current_config: bool,
+
+    /// view a specific date's file (YYYY-MM-DD)
+    #[arg(short, long)]
+    pub date: Option<String>,
+    /// view previous day's notes
+    #[arg(short = 'p', long, default_value_t = 0)]
+    pub previous: u16,
+    /// list closest files to date
+    #[arg(short, long)]
+    pub list: bool,
+    /// number of files to list
+    #[arg(short, long, default_value_t = 5)]
+    pub number: usize,
+    /// list closest files to date
+    #[arg(short = 'L', long)]
+    pub list_all: bool,
+
+    /// increase logging level
+    #[arg(short, long, action = clap::ArgAction::Count)]
+    pub verbose: u8,
+}
+
+pub fn smart_parse_date(date_str: &str, cur_date: &NaiveDate) -> Option<NaiveDate> {
+    let full_date_fmt = "%Y-%m-%d";
+
+    if let Ok(date) = NaiveDate::parse_from_str(date_str, &full_date_fmt) {
+        return Some(date);
+    }
+    let parts: Vec<&str> = date_str.split('-').collect();
+
+    match parts.len() {
+        1 => cur_date.with_day(parts[0].parse().unwrap_or(cur_date.day())),
+        2 => cur_date
+            .with_day(parts[1].parse().unwrap_or(cur_date.day()))?
+            .with_month(parts[0].parse().unwrap_or(cur_date.month())),
+        3 => NaiveDate::from_ymd_opt(
+            parts[0].parse().ok()?,
+            parts[1].parse().ok()?,
+            parts[2].parse().ok()?,
+        ),
+        _ => None,
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_smart_parse_date() {
+        let good_date = NaiveDate::from_ymd_opt(2024, 01, 03).expect("Invalid date specified");
+        let good_date_str = good_date.format("%Y-%m-%d").to_string();
+
+        assert_eq!(
+            Some(good_date),
+            smart_parse_date(&good_date_str, &good_date)
+        );
+        let no_padding_date_str = "2024-1-3";
+        assert_eq!(
+            Some(good_date),
+            smart_parse_date(no_padding_date_str, &good_date)
+        );
+
+        let bad_day_str = "2024-01-99";
+        assert_eq!(None, smart_parse_date(bad_day_str, &good_date));
+        let no_day_str = "2024-01";
+        assert_eq!(None, smart_parse_date(no_day_str, &good_date));
+
+        let bad_month_str = "2024-25-01";
+        assert_eq!(None, smart_parse_date(bad_month_str, &good_date));
+        let no_month_str = "2024-14";
+        assert_eq!(None, smart_parse_date(no_month_str, &good_date));
+
+        let no_year_str = "01-03";
+        assert_eq!(Some(good_date), smart_parse_date(no_year_str, &good_date));
+        let bad_month_no_year_str = "25-01";
+        assert_eq!(None, smart_parse_date(bad_month_no_year_str, &good_date));
+        let bad_day_no_year_str = "01-35";
+        assert_eq!(None, smart_parse_date(bad_day_no_year_str, &good_date));
+
+        let no_year_month_str = "03";
+        assert_eq!(
+            Some(good_date),
+            smart_parse_date(no_year_month_str, &good_date)
+        );
+        let bad_day_no_year_month_str = "35";
+        assert_eq!(
+            None,
+            smart_parse_date(bad_day_no_year_month_str, &good_date)
+        );
+    }
+}

src/config/mod.rs

@@ -0,0 +1,84 @@
+extern crate serde;
+extern crate serde_json;
+
+use figment::providers::{Env, Format, Json, Serialized};
+use figment::Figment;
+use serde::{Deserialize, Serialize};
+use std::env::var;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+
+#[derive(Deserialize, Serialize, Debug)]
+pub struct Config {
+    pub editor: String,
+    pub sections: Vec<String>,
+    pub notes_dir: String,
+}
+
+impl Default for Config {
+    fn default() -> Self {
+        Config {
+            editor: "nano".into(),
+            sections: vec!["Daily".into(), "Weekly".into(), "Monthly".into()],
+            notes_dir: "~/Notes".into(),
+        }
+    }
+}
+
+#[derive(Debug)]
+pub enum ConfigError {
+    IOError(&'static str),
+    ParseError(&'static str),
+    EnvError(&'static str),
+}
+
+impl Config {
+    pub fn load(cfg_file: &str) -> Result<Self, ConfigError> {
+        Figment::from(Serialized::defaults(Config::default()))
+            .merge(Env::raw().only(&["EDITOR"]))
+            .merge(Json::file(cfg_file))
+            .extract()
+            .or(Err(ConfigError::IOError("Could not load config")))
+    }
+
+    pub fn write_default(cfg_file: &str) -> Result<(), ConfigError> {
+        let buf = serde_json::to_string_pretty(&Self::default()).or_else(|_| {
+            Err(ConfigError::ParseError(
+                "could not serialize default config",
+            ))
+        })?;
+
+        let mut f = File::create(cfg_file)
+            .or_else(|_| Err(ConfigError::IOError("Could not open config file")))?;
+        f.write_all(&buf.as_bytes()).or_else(|_| {
+            Err(ConfigError::IOError(
+                "could not write default config to file",
+            ))
+        })?;
+
+        Ok(())
+    }
+
+    pub fn expected_locations() -> Result<Vec<PathBuf>, ConfigError> {
+        let cfg_name = "rusty_task.json";
+        let home = var("HOME").or(Err(ConfigError::EnvError(
+            "$HOME environment variable not set",
+        )))?;
+        let pwd = var("PWD").or(Err(ConfigError::EnvError(
+            "$PWD environment variable not set",
+        )))?;
+
+        let mut home_config_cfg = PathBuf::from(home.clone());
+        home_config_cfg.push(".config");
+        home_config_cfg.push(cfg_name);
+
+        let mut home_cfg = PathBuf::from(home.clone());
+        home_cfg.push(format!(".{}", cfg_name));
+
+        let mut pwd_cfg = PathBuf::from(pwd.clone());
+        pwd_cfg.push(format!(".{}", cfg_name));
+
+        Ok(vec![home_config_cfg, home_cfg, pwd_cfg])
+    }
+}

src/file/mod.rs

@@ -0,0 +1,281 @@
+use crate::todo::{File as TodoFile, Status as TaskStatus};
+use crate::NaiveDate;
+use crate::TaskGroup;
+use chrono::Datelike;
+use comrak::nodes::{AstNode, NodeValue};
+use comrak::parse_document;
+use comrak::{Arena, ComrakExtensionOptions, ComrakOptions, ComrakParseOptions};
+use std::collections::HashMap;
+use std::fs::{read, File};
+use std::io::Write;
+use std::path::PathBuf;
+use std::str;
+
+#[derive(Debug)]
+pub enum FileNameParseError {
+    TypeConversionError(&'static str),
+    ParseError(chrono::ParseError),
+}
+
+pub fn get_filepath(data_dir: &PathBuf, date: &NaiveDate) -> PathBuf {
+    let file_name = format!("{}-{:02}-{:02}.md", date.year(), date.month(), date.day());
+    let mut file_path = data_dir.clone();
+    file_path.push(file_name);
+    file_path
+}
+
+/// generate strings from TaskGroups and date
+pub fn generate_file_content(data: &Vec<TaskGroup>, date: &NaiveDate) -> String {
+    // TODO: This should be a type and then I can implement it with From<>
+    let mut content = format!(
+        "# Today's tasks {}-{:02}-{:02}\n",
+        date.year(),
+        date.month(),
+        date.day()
+    );
+    data.iter()
+        .for_each(|task_group| content.push_str(format!("\n{}", task_group.to_string()).as_str()));
+
+    content
+}
+
+pub fn write_file(path: &PathBuf, content: &String) {
+    let mut new_file = File::create(&path).expect("Could not open today's file: {today_file_path}");
+    write!(new_file, "{}", content).expect("Could not write to file: {today_file_path}");
+}
+
+/// Load in text file as String
+pub fn load_file(file: &TodoFile) -> String {
+    // TODO: This could be a TryFrom<>
+    let contents_utf8 = read(file.file.clone())
+        .expect(format!("Could not read file {}", file.file.to_string_lossy()).as_str());
+    str::from_utf8(&contents_utf8)
+        .expect(
+            format!(
+                "failed to convert contents of file to string: {}",
+                file.file.to_string_lossy()
+            )
+            .as_str(),
+        )
+        .to_string()
+}
+
+/// Parse contents of markdown file with Comrak ( relaxed tasklist matching is enabled)
+pub fn parse_todo_file<'a>(contents: &String, arena: &'a Arena<AstNode<'a>>) -> &'a AstNode<'a> {
+    let options = &ComrakOptions {
+        extension: ComrakExtensionOptions {
+            tasklist: true,
+            ..ComrakExtensionOptions::default()
+        },
+        parse: ComrakParseOptions {
+            relaxed_tasklist_matching: true,
+            ..ComrakParseOptions::default()
+        },
+        ..ComrakOptions::default()
+    };
+    parse_document(arena, contents, options)
+}
+
+pub fn extract_secitons<'a>(
+    root: &'a AstNode<'a>,
+    sections: &Vec<String>,
+) -> HashMap<String, TaskGroup> {
+    let mut groups: HashMap<String, TaskGroup> = HashMap::new();
+    for node in root.reverse_children() {
+        let node_ref = &node.data.borrow();
+        if let NodeValue::Heading(heading) = node_ref.value {
+            if heading.level < 2 {
+                continue;
+            }
+
+            let first_child_ref = &node.first_child();
+            let first_child = if let Some(child) = first_child_ref {
+                child
+            } else {
+                continue;
+            };
+
+            let data_ref = &first_child.data.borrow();
+            let title = if let NodeValue::Text(value) = &data_ref.value {
+                value
+            } else {
+                continue;
+            };
+
+            if sections.iter().any(|section| section.eq(title)) {
+                if let Ok(mut group) = TaskGroup::try_from(node) {
+                    group.tasks = group
+                        .tasks
+                        .into_iter()
+                        .filter(|task| !matches!(task.status, TaskStatus::Done(_)))
+                        .collect();
+                    groups.insert(title.to_string(), group);
+                }
+            }
+        };
+    }
+    groups
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::todo::{Status, Task};
+
+    #[test]
+    fn test_extract_sections() {
+        let test_md = "\
+# Test
+## Content
+ - [ ] something
+ - [x] done
+ - [!] other
+## Unused
+### Sub section
+ - [ ] task
+## Unrealated Stuff
+ - [ ] something else
+    + [ ] subtask";
+
+        let arena = Arena::new();
+        let root = parse_todo_file(&test_md.to_string(), &arena);
+
+        let result = extract_secitons(root, &vec![]);
+        assert_eq!(result.keys().count(), 0);
+
+        let result = extract_secitons(root, &vec!["Not There".to_string()]);
+        assert_eq!(result.keys().count(), 0);
+
+        let sections = vec!["Unused".to_string()];
+        let result = extract_secitons(root, &sections);
+        assert_eq!(result.keys().count(), 0);
+
+        let sections = vec!["Sub section".to_string()];
+        let result = extract_secitons(root, &sections);
+        assert_eq!(result.keys().count(), 1);
+        assert!(result.get(sections.first().unwrap()).is_some());
+        assert_eq!(result.get(sections.first().unwrap()).unwrap().level, 3);
+
+        let sections = vec!["Content".to_string()];
+        let result = extract_secitons(root, &sections);
+        assert_eq!(result.keys().count(), 1);
+        assert!(result.get(sections.first().unwrap()).is_some());
+        assert_eq!(
+            result
+                .get(sections.first().unwrap())
+                .expect("No Value for \"Content\""),
+            &TaskGroup {
+                name: sections.first().unwrap().clone(),
+                tasks: vec![
+                    Task {
+                        status: TaskStatus::Empty,
+                        text: "something".to_string(),
+                        subtasks: None
+                    },
+                    Task {
+                        status: TaskStatus::Todo('!'),
+                        text: "other".to_string(),
+                        subtasks: None
+                    },
+                ],
+                level: 2
+            }
+        );
+
+        let sections = vec!["Unrealated Stuff".to_string()];
+        let result = extract_secitons(root, &sections);
+        assert_eq!(result.keys().count(), 1);
+        assert!(result.get(sections.first().unwrap()).is_some());
+        assert_eq!(
+            result
+                .get(sections.first().unwrap())
+                .expect("No Value for \"Content\""),
+            &TaskGroup {
+                name: sections.first().unwrap().clone(),
+                tasks: vec![Task {
+                    status: TaskStatus::Empty,
+                    text: "something else".to_string(),
+                    subtasks: Some(vec![Task {
+                        status: TaskStatus::Empty,
+                        text: "subtask".to_string(),
+                        subtasks: None
+                    }]),
+                }],
+                level: 2
+            }
+        );
+
+        let result = extract_secitons(
+            root,
+            &vec!["Content".to_string(), "Sub section".to_string()],
+        );
+        assert_eq!(result.keys().count(), 2);
+    }
+
+    #[test]
+    fn test_generate_file_content() {
+        let date = NaiveDate::from_ymd_opt(2024, 1, 1).unwrap();
+        let mut content: Vec<TaskGroup> = vec![];
+
+        let result = generate_file_content(&content, &date);
+        let expected = "# Today's tasks 2024-01-01\n";
+        assert_eq!(result, expected);
+
+        content.push(TaskGroup {
+            name: "Empty".into(),
+            tasks: vec![],
+            level: 2,
+        });
+
+        let result = generate_file_content(&content, &date);
+        let expected = "# Today's tasks 2024-01-01\n\n## Empty\n";
+        assert_eq!(result, expected);
+
+        content.push(TaskGroup {
+            name: "Subgroup".into(),
+            tasks: vec![],
+            level: 3,
+        });
+
+        let result = generate_file_content(&content, &date);
+        let expected = "# Today's tasks 2024-01-01\n\n## Empty\n\n### Subgroup\n";
+        assert_eq!(result, expected);
+
+        content.push(TaskGroup {
+            name: "Tasks".into(),
+            tasks: vec![
+                Task {
+                    status: Status::Empty,
+                    text: "task 1".into(),
+                    subtasks: None,
+                },
+                Task {
+                    status: Status::Done('x'),
+                    text: "task 2".into(),
+                    subtasks: None,
+                },
+                Task {
+                    status: Status::Todo('>'),
+                    text: "task 3".into(),
+                    subtasks: None,
+                },
+            ],
+            level: 2,
+        });
+
+        let result = generate_file_content(&content, &date);
+        let expected = "\
+# Today's tasks 2024-01-01
+
+## Empty
+
+### Subgroup
+
+## Tasks
+- [ ] task 1
+- [x] task 2
+- [>] task 3
+";
+        assert_eq!(result, expected);
+    }
+}

src/logging/mod.rs

@@ -0,0 +1,26 @@
+use log::Level;
+
+pub fn get_logging_level(verbose_level: u8) -> Level {
+    match verbose_level {
+        ..=0 => Level::Error,
+        1 => Level::Warn,
+        2 => Level::Info,
+        3 => Level::Debug,
+        4.. => Level::Trace,
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+
+    #[test]
+    fn test_get_logging_level() {
+        assert_eq!(get_logging_level(0), Level::Error);
+        assert_eq!(get_logging_level(1), Level::Warn);
+        assert_eq!(get_logging_level(2), Level::Info);
+        assert_eq!(get_logging_level(3), Level::Debug);
+        assert_eq!(get_logging_level(4), Level::Trace);
+        assert_eq!(get_logging_level(5), Level::Trace);
+    }
+}

src/main.rs

@@ -1,127 +1,191 @@
+mod cli;
+mod config;
+mod file;
+mod logging;
+mod todo;
+
 use chrono::naive::NaiveDate;
-use chrono::{Datelike, Local};
+use chrono::{Local, TimeDelta};
-use std::env;
+use clap::Parser;
+use cli::Args;
+use comrak::Arena;
+use config::Config;
+use log;
+use logging::get_logging_level;
+use resolve_path::PathResolveExt;
+use simple_logger::init_with_level;
 use std::fs;
-use std::path::{Path, PathBuf};
+use std::path::Path;
-use todo_file::TodoFile;
+use std::process::Command;
-
+use todo::{File as TodoFile, TaskGroup};
-//TODO handle unwraps and errors more uniformly
-//TODO move TodoFile into its file
 
+// TODO: add options to use specific date instead of args.previous
 fn main() {
-    let data_dir = get_data_dir("notes");
+    // setup
+    let args = Args::parse();
+    let _logger = init_with_level(get_logging_level(args.verbose)).unwrap();
+    log::debug!("{:?}", args);
 
-    println!("{}", data_dir.to_str().unwrap());
+    // getting config location
-    let latest_file = get_latest_file(&data_dir).unwrap();
+    let expected_cfg_files = match Config::expected_locations() {
-    //.expect(
+        Ok(cfg_files) => cfg_files,
-    //    format!(
+        Err(e) => panic!("{:?}", e),
-    //        "Could not find any notes files please use format: {}",
+    };
-    //        get_file_regex().to_string()
-    //    )
-    //    .as_str(),
-    //);
-    println!("Latest file: {:?}", latest_file);
-    let now = Local::now();
-    let today = NaiveDate::from_ymd_opt(now.year(), now.month(), now.day());
-    match today {
-        Some(today) if latest_file.date == today => println!("Todays file was created"),
-        Some(today) if latest_file.date < today => println!("Todays file was not created"),
-        Some(today) if latest_file.date > today => println!("Future files were created"),
 
-        _ => println!("Today never happend!"),
+    // getting exising config files
+    let cfg_files: Vec<&Path> = expected_cfg_files
+        .iter()
+        .map(|file| Path::new(file))
+        .filter(|file| file.exists())
+        .collect();
+
+    // writing default config if non exist
+    if cfg_files.len() <= 0 && args.config.is_none() {
+        if let Err(e) = Config::write_default(match expected_cfg_files[0].to_str() {
+            Some(s) => s,
+            None => panic!("Could not resolve expected cfg file paths"),
+        }) {
+            panic!("Could not write config: {:?}", e);
         }
     }
 
-mod todo_file {
+    // set witch config file to load
-    use chrono::naive::NaiveDate;
+    let cfg_file = match args.config {
-    use std::convert::TryFrom;
+        Some(file) => file,
-    use std::fs::DirEntry;
+        None => match cfg_files.last() {
-    use std::str::FromStr;
+            None => expected_cfg_files[0].to_string_lossy().to_string(),
-    use regex::Regex;
+            Some(file) => file.to_string_lossy().to_string(),
+        },
+    };
 
-    #[derive(Debug)]
+    // show current config file or just log it based on args
-    pub struct TodoFile {
+    if args.current_config {
-        pub file: DirEntry,
+        print!("{}", &cfg_file);
-        pub date: NaiveDate,
+        return;
-    }
-
-    impl TodoFile {
-        fn capture_as_number<T: FromStr>(
-            capture: &regex::Captures,
-            name: &str,
-        ) -> Result<T, String> {
-            Ok(capture
-                .name(name)
-                .unwrap()
-                .as_str()
-                .parse::<T>()
-                .ok()
-                .ok_or("Something went wrong".to_owned())?)
-        }
-
-        pub fn latest_file(a: TodoFile, b: TodoFile) -> TodoFile {
-            if a.date > b.date {
-                a
     } else {
-                b
+        log::debug!("config file: {}", &cfg_file);
-            }
     }
 
-        fn get_file_regex() -> Regex {
+    // load config file
-            //TODO This would ideally be configurable 
+    let cfg = match Config::load(&cfg_file) {
-            Regex::new(r"(?P<year>\d{4})-(?P<month>\d{2})-(?P<day>\d{2}).md")
+        Ok(cfg) => cfg,
-                .expect("could not create regex")
+        Err(_e) => panic!("could not load config: {}", cfg_file),
-        }
-    }
-
-    impl TryFrom<DirEntry> for TodoFile {
-        type Error = String;
-
-        fn try_from(direntry: DirEntry) -> Result<Self, Self::Error> {
-            let re = TodoFile::get_file_regex();
-            println!("{:?}", re);
-            let file_name = direntry.file_name();
-            let file_name_str = match file_name.to_str() {
-                Some(name) => name,
-                _ => "",
     };
-            println!("{:?}", file_name_str);
+    log::debug!("{:#?}", cfg);
 
-            if let Some(caps) = re.captures(file_name_str) {
+    // resolve data directory and create it if it does not exisit
-                let year: i32 = Self::capture_as_number(&caps, "year").unwrap();
+    let data_dir = cfg.notes_dir.resolve().to_path_buf();
-                let month: u32 = Self::capture_as_number(&caps, "month").unwrap();
+    if !fs::metadata(&data_dir).is_ok() {
-                let day: u32 = Self::capture_as_number(&caps, "day").unwrap();
+        match fs::create_dir_all(&data_dir) {
-
+            Err(_e) => panic!("Could not create default directory: {:?}", &data_dir),
-                return Ok(Self {
+            _ => log::info!("created dir {}", &data_dir.to_string_lossy()),
-                    file: direntry,
-                    date: NaiveDate::from_ymd_opt(year, month, day).unwrap(),
-                });
         };
-            Err(format!(
+    }
-                "Could not parse file name => {{ name: {:?}, re: {:?} }}",
+
-                file_name, re
+    // get file paths of notes
+    let files = fs::read_dir(&data_dir)
+        .expect(format!("Could not find notes folder: {:?}", &data_dir).as_str())
+        .filter_map(|f| f.ok())
+        .map(|file| file.path());
+    // list all notes
+    if args.list_all {
+        files
+            .into_iter()
+            .for_each(|f| println!("{}", f.canonicalize().unwrap().to_string_lossy()));
+        return ();
+    }
+
+    // get clossest files to specified date
+    let today = Local::now().date_naive();
+    let target = if let Some(date_str) = args.date {
+        cli::smart_parse_date(&date_str, &today).expect("Could not parse date")
+    } else {
+        today - TimeDelta::try_days(args.previous.into()).unwrap()
+    };
+    let closest_files = TodoFile::get_closest_files(files.collect(), target, args.number);
+    // list files
+    if args.list {
+        println!("Today - n\tFile");
+        closest_files.into_iter().for_each(|f| {
+            println!(
+                "{}\t\t{}",
+                (today - f.date).num_days(),
+                f.file.canonicalize().unwrap().to_string_lossy(),
             )
-            .to_string())
+        });
-        }
+        return ();
-    }
     }
+    // TODO: If the user did not pick a date that exist they should have the
+    // option to updated their choice
 
-fn get_data_dir(dir_name: &str) -> PathBuf {
+    let latest_file = closest_files.first();
-    let mut dir = if let Ok(home) = env::var("HOME") {
+    let current_file = match latest_file {
-        let mut x = PathBuf::new();
+        // copy old file if the user specifies today's notes but it does not exist
-        x.push(home);
+        Some(todo_file) if todo_file.date < today && args.previous == 0 => {
-        x
+            let sections = &cfg.sections;
-    } else {
+            log::info!("looking for sections: {:?}", sections);
-        env::current_dir().expect("PWD environment variable not set")
+            let arena = Arena::new();
+
+            // attempt to load file
+            let root = {
+                log::info!(
+                    "loading and parsing file: {}",
+                    todo_file.file.to_string_lossy()
+                );
+                let contents = file::load_file(&todo_file);
+                let root = file::parse_todo_file(&contents, &arena);
+                root
             };
-    dir = dir.join(dir_name);
+            log::trace!("file loaded");
-    dir
+            // extract sections specified in config
-}
+            let groups = file::extract_secitons(root, sections);
+            log::trace!("sections extracted");
+            // create new sections and generate empty sections for any that are missing
+            let level = groups.values().map(|group| group.level).min().unwrap_or(2);
+            let data = sections
+                .iter()
+                .map(|section| match groups.get(section) {
+                    Some(group) => group.clone(),
+                    None => TaskGroup::empty(section.to_string(), level),
+                })
+                .collect();
 
-fn get_latest_file(dir: &Path) -> Result<TodoFile, String> {
+            // generate string for new file and write to filesystem
-    let dir = fs::read_dir(dir).expect(format!("Could not find notes folder: {:?}", dir).as_str());
+            let content = file::generate_file_content(&data, &today);
-    dir.filter_map(|f| f.ok())
+            let file_path = file::get_filepath(&data_dir, &today);
-        .filter_map(|file| TodoFile::try_from(file).ok())
+            log::info!("writing to file: {}", file_path.to_string_lossy());
-        .reduce(|a, b| TodoFile::latest_file(a, b))
+            file::write_file(&file_path, &content);
-        .ok_or("Could not reduce items".to_string())
+            // return file name
+            file_path
+        }
+        // returning the selected file
+        Some(todo_file) => todo_file.file.to_owned(),
+        // no note files exist creating based on template from config
+        None => {
+            // generate empty file
+            let sections = &cfg.sections;
+            log::info!("creating new empty file with sections: {:?}", sections);
+            let data = sections
+                .iter()
+                .map(|sec| TaskGroup::empty(sec.clone(), 2))
+                .collect();
+            let content = file::generate_file_content(&data, &today);
+            let file_path = file::get_filepath(&data_dir, &today);
+            file::write_file(&file_path, &content);
+            log::info!("writing to file: {}", file_path.to_string_lossy());
+            // return file name
+            file_path
+        }
+    };
+
+    // opening file
+    log::info!(
+        "Opening {} in {}",
+        current_file.to_string_lossy(),
+        cfg.editor
+    );
+    Command::new(&cfg.editor)
+        .args([current_file])
+        .status()
+        .expect(format!("failed to launch editor {}", &cfg.editor).as_str());
 }

src/todo/file.rs

@@ -0,0 +1,116 @@
+use chrono::naive::NaiveDate;
+use std::cmp::min;
+use std::convert::TryFrom;
+use std::path::PathBuf;
+
+use crate::file::FileNameParseError;
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct File {
+    pub file: PathBuf,
+    pub date: NaiveDate,
+}
+
+fn try_get_date(file: &PathBuf) -> Result<NaiveDate, FileNameParseError> {
+    let file_name = file
+        .file_name()
+        .ok_or(FileNameParseError::TypeConversionError(
+            "Could not get filename from path: {:?}",
+        ))?
+        .to_str()
+        .ok_or(FileNameParseError::TypeConversionError(
+            "Could not get filename from path: {:?}",
+        ))?;
+
+    NaiveDate::parse_from_str(file_name, "%Y-%m-%d.md")
+        .or_else(|e| Err(FileNameParseError::ParseError(e)))
+}
+
+impl TryFrom<PathBuf> for File {
+    type Error = FileNameParseError;
+
+    fn try_from(path: PathBuf) -> Result<Self, Self::Error> {
+        Ok(Self {
+            date: try_get_date(&path)?,
+            file: path.into(),
+        })
+    }
+}
+impl File {
+    pub fn get_closest_files(files: Vec<PathBuf>, target: NaiveDate, n: usize) -> Vec<File> {
+        let mut dated_files = files
+            .into_iter()
+            .filter_map(|file| File::try_from(file).ok())
+            .collect::<Vec<_>>();
+        dated_files.sort_by_cached_key(|dated_file| (dated_file.date - target).num_days().abs());
+
+        let count = min(n, dated_files.len());
+        dated_files[..count].to_vec()
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use chrono::NaiveDate;
+    use std::path::PathBuf;
+
+    #[test]
+    fn test_get_closest_date() {
+        let files = vec![
+            PathBuf::from("./2024-01-01.md"),
+            PathBuf::from("./2024-01-02.md"),
+            PathBuf::from("./2024-01-03.md"),
+            PathBuf::from("./2024-02-01.md"),
+            PathBuf::from("./2024-03-01.md"),
+            PathBuf::from("./2024-04-01.md"),
+            PathBuf::from("./2024-04-02.md"),
+            PathBuf::from("./2024-04-03.md"),
+            PathBuf::from("./2024-04-04.md"),
+        ];
+
+        let res = File::get_closest_files(
+            files.clone(),
+            NaiveDate::from_ymd_opt(2023, 12, 30).unwrap(),
+            3,
+        );
+        let expected_res = vec![
+            File::try_from(PathBuf::from("./2024-01-01.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-01-02.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-01-03.md")).unwrap(),
+        ];
+        assert_eq!(res, expected_res);
+
+        let res = File::get_closest_files(
+            files.clone(),
+            NaiveDate::from_ymd_opt(2024, 2, 1).unwrap(),
+            3,
+        );
+        let expected_res = vec![
+            File::try_from(PathBuf::from("./2024-02-01.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-01-03.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-03-01.md")).unwrap(),
+        ];
+        assert_eq!(res, expected_res);
+
+        let res = File::get_closest_files(
+            files.clone(),
+            NaiveDate::from_ymd_opt(2024, 5, 2).unwrap(),
+            3,
+        );
+        let expected_res = vec![
+            File::try_from(PathBuf::from("./2024-04-04.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-04-03.md")).unwrap(),
+            File::try_from(PathBuf::from("./2024-04-02.md")).unwrap(),
+        ];
+        assert_eq!(res, expected_res);
+
+        let res = File::get_closest_files(
+            files[..1].to_vec(),
+            NaiveDate::from_ymd_opt(2023, 12, 30).unwrap(),
+            3,
+        );
+        let expected_res = vec![File::try_from(PathBuf::from("./2024-01-01.md")).unwrap()];
+        assert_eq!(res, expected_res);
+    }
+}

src/todo/mod.rs

@@ -0,0 +1,5 @@
+mod file;
+mod tasks;
+
+pub use file::File;
+pub use tasks::{Status, TaskGroup};

src/todo/tasks.rs

@@ -0,0 +1,201 @@
+use std::borrow::Borrow;
+
+use comrak::nodes::AstNode;
+use comrak::nodes::NodeValue;
+
+#[derive(Debug, Clone, PartialEq)]
+pub struct TaskGroup {
+    pub name: String,
+    pub tasks: Vec<Task>,
+    pub level: u8,
+}
+
+// This does not support subtasks, need to figure out best path forward
+#[derive(Debug, Clone, PartialEq)]
+pub struct Task {
+    pub status: Status,
+    pub text: String,
+    pub subtasks: Option<Vec<Task>>,
+}
+
+#[derive(Debug, PartialEq, Clone)]
+pub enum Status {
+    Done(char),
+    Todo(char),
+    Empty,
+}
+
+pub enum TaskError {
+    ParsingError(&'static str),
+}
+
+impl Task {
+    fn extract_text<'a>(node: &'a AstNode<'a>) -> Result<String, TaskError> {
+        let data_ref = node.data.borrow();
+        if let NodeValue::Text(contents) = &data_ref.value {
+            Ok(contents.to_string())
+        } else {
+            Err(TaskError::ParsingError("Could not get text from element"))
+        }
+    }
+
+    fn extract_text_from_task<'a>(node: &'a AstNode<'a>) -> Result<String, TaskError> {
+        let mut text = String::new();
+        let data_ref = node.data.borrow();
+        if let NodeValue::Paragraph = data_ref.value {
+            for child in node.children() {
+                let child_data_ref = child.data.borrow();
+                let t = match &child_data_ref.borrow().value {
+                    NodeValue::Text(contents) => contents.clone(),
+                    NodeValue::Emph if child.first_child().is_some() => {
+                        format!("*{}*", Self::extract_text(child.first_child().unwrap())?)
+                    }
+                    NodeValue::Strong if child.first_child().is_some() => {
+                        format!("**{}**", Self::extract_text(child.first_child().unwrap())?)
+                    }
+                    NodeValue::SoftBreak => {
+                        format!("\n{}", " ".repeat(data_ref.sourcepos.start.column))
+                    }
+                    _ => "".into(),
+                };
+                text.push_str(&t);
+            }
+            Ok(text)
+        } else {
+            Err(TaskError::ParsingError("First child is not Paragraph"))
+        }
+    }
+}
+
+impl ToString for Task {
+    fn to_string(&self) -> String {
+        let ch = match self.status {
+            Status::Done(ch) => ch,
+            Status::Todo(ch) => ch,
+            Status::Empty => ' ',
+        };
+
+        let subtasks = if let Some(subtasks) = &self.subtasks {
+            let text = subtasks
+                .iter()
+                .map(|task| task.to_string())
+                .collect::<Vec<_>>()
+                .join("\n");
+            format!("\n{}", text).trim_end().replace("\n", "\n  ")
+        } else {
+            "".into()
+        };
+
+        format!("- [{}] {}{}\n", ch, self.text.trim(), subtasks)
+    }
+}
+
+impl<'a> TryFrom<&'a AstNode<'a>> for Task {
+    type Error = TaskError;
+
+    fn try_from(node: &'a AstNode<'a>) -> Result<Self, Self::Error> {
+        let data_ref = &node.data.borrow();
+        if let NodeValue::TaskItem(ch) = data_ref.value {
+            let text = Self::extract_text_from_task(
+                node.first_child()
+                    .ok_or(TaskError::ParsingError("No childern of node found"))?,
+            )?;
+            let status = match ch {
+                Some(c) if c == 'x' || c == 'X' => Status::Done(c),
+                Some(c) => Status::Todo(c),
+                _ => Status::Empty,
+            };
+            let subtasks = node
+                .children()
+                .filter_map(|child| {
+                    if let NodeValue::List(_) = child.data.borrow().value {
+                        Some(child)
+                    } else {
+                        None
+                    }
+                })
+                .map(|child| {
+                    child
+                        .children()
+                        .into_iter()
+                        .filter_map(|item_node| Task::try_from(item_node).ok())
+                        .collect()
+                })
+                .reduce(|a: Vec<Task>, b: Vec<Task>| [a, b].concat());
+
+            Ok(Self {
+                status,
+                text,
+                subtasks,
+            })
+        } else {
+            Err(TaskError::ParsingError(
+                "Node being parsed is not a TaskItem",
+            ))
+        }
+    }
+}
+
+impl TaskGroup {
+    pub fn empty(name: String, level: u8) -> TaskGroup {
+        TaskGroup {
+            name,
+            tasks: Vec::new(),
+            level,
+        }
+    }
+}
+impl ToString for TaskGroup {
+    fn to_string(&self) -> String {
+        let mut output = String::new();
+        output.push_str(format!("{} {}\n", "#".repeat(self.level.into()), self.name).as_str());
+        self.tasks
+            .iter()
+            .for_each(|task| output.push_str(task.to_string().as_str()));
+
+        output
+    }
+}
+
+impl<'a> TryFrom<&'a AstNode<'a>> for TaskGroup {
+    type Error = TaskError;
+
+    fn try_from(node: &'a AstNode<'a>) -> Result<Self, Self::Error> {
+        let node_ref = &node.data.borrow();
+        if let NodeValue::Heading(heading) = node_ref.value {
+            let level = heading.level;
+            let first_child = node
+                .first_child()
+                .ok_or(TaskError::ParsingError("Node has no children"))?;
+
+            let data_ref = first_child.data.borrow();
+            let name = if let NodeValue::Text(value) = &data_ref.value {
+                Ok(value.to_string())
+            } else {
+                Err(TaskError::ParsingError(
+                    "Could not get title from heading node",
+                ))
+            }?;
+
+            let next_sib = node
+                .next_sibling()
+                .ok_or(TaskError::ParsingError("Empty section at end of file"))?;
+
+            if let NodeValue::List(_list_meta) = next_sib.data.borrow().value {
+                let tasks = next_sib
+                    .children()
+                    .into_iter()
+                    .filter_map(|item_node| Task::try_from(item_node).ok())
+                    .collect();
+
+                Ok(TaskGroup { name, tasks, level })
+            } else {
+                Err(TaskError::ParsingError(
+                    "Next sibling of node is not a list",
+                ))
+            }
+        } else {
+            Err(TaskError::ParsingError("Node is not a section heading"))
+        }
+    }
+}