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use crate::core::*;
use std::fs;
use std::path::Path;

pub fn edit(vault: &Vault, date: &JustDate) -> Result<bool> {
  let base = Path::new(&vault.journals).join(date.format());
  fs::create_dir_all(&base)?;
  let path = base.join("journal").with_extension("md");
  let content_before = read_safe(&path);
  editor::run(&path)?;
  let content_after = read_safe(&path);
  let saved = content_before != content_after;
  // cleanup if necessary
  if content_after == "" && path.exists() {
    fs::remove_file(&path)?;
  }
  if content_after == "" && base.read_dir()?.count() == 0 {
    fs::remove_dir_all(&base)?;
  }
  Ok(saved)
}

pub fn remove(vault: &Vault, date: &JustDate) -> Result<()> {
  let date_str = &date.format();
  let base = Path::new(&vault.journals).join(date_str);
  let path = base.join("journal").with_extension("md");
  if path.exists() {
    let question = format!("Are you sure you want to remove journal from [{}]?", date_str);
    match prompt_yes_no(question.as_str(), YesNo::No)? {
      YesNo::Yes => {
        fs::remove_file(&path)?;
        if base.read_dir()?.count() == 0 {
          fs::remove_dir_all(&base)?;
        }
        println!("Journal from [{}] was successfully removed", date_str);
      }
      YesNo::No => println!("Nothing was removed"),
    }
  } else {
    println!("Journal from [{}] was not found", date_str);
  }
  Ok(())
}

pub fn remove_noprompt(vault: &Vault, date: &JustDate) -> Result<bool> {
  let date_str = &date.format();
  let base = Path::new(&vault.journals).join(date_str);
  let path = base.join("journal").with_extension("md");
  if path.exists() {
    fs::remove_file(&path)?;
    if base.read_dir()?.count() == 0 {
      fs::remove_dir_all(&base)?;
    }
    Ok(true)
  } else {
    Ok(false)
  }
}

pub fn list(vault: &Vault) -> Result<()> {
  for (journal, _) in vault.list_journals()? {
    println!("{}", journal);
  }
  Ok(())
}