para-audit 0.1.22

use anyhow::{Result, anyhow};
use colored::Colorize;
use std::{
    path::{Path, PathBuf},
    process::Command,
};

use crate::{get_git_path, read_yaml};

pub fn open(module: &PathBuf) -> Result<()> {
    // print module path to std for "goto"/"cd" like command
    eprintln!(
        "{}: {}",
        "opening".green(),
        module.file_name().unwrap().to_str().unwrap().italic(),
    );

    match read_yaml(module) {
        Ok(para_yaml) => {
            for git in para_yaml.gits {
                if let Err(e) = init_git(&git, module) {
                    eprintln!("{}: {}", e.to_string().red(), &git.italic());
                }
            }

            if let Some(cmd) = para_yaml.open
                && !cmd.is_empty()
            {
                // command sequence exists
                let mut command = Command::new(cmd.first().unwrap());
                for arg in cmd[1..].iter() {
                    command.arg(arg);
                }
                command.current_dir(module);
                if command.status().is_err() {
                    eprintln!("{}", "failed to spawn `open` command from para.yaml".red());
                };
            }
        }
        Err(e) => {
            eprintln!(
                "{}",
                format!("Error opening para.yaml: {}", e).green().italic()
            );
        }
    }

    let shell = std::env::var("SHELL").unwrap_or("bash".to_string());
    Command::new(shell)
        .current_dir(module)
        .env("MOD", module)
        .status()?;
    Ok(())
}

pub fn edit_note(note: PathBuf) -> Result<()> {
    Command::new("code")
        .arg(note)
        .status()
        .or(Err(anyhow!("Couldn't start vim")))?;
    Ok(())
}

fn init_git(git: &str, module: &Path) -> Result<()> {
    // get git repo name (will be dir name)
    let name = match git.split('/').next_back() {
        Some(n) => n.trim_end_matches(".git"),
        None => return Err(anyhow!("para.yaml git url invalid")),
    };

    // git url is defined, confirm that no dir with that name exists yet
    if module.join(name).exists() {
        // already exists, no problem.
        return Ok(());
    } else {
        // file either doesn't exist, or is a broken symlink
        if module.join(name).is_symlink() {
            // must be a broken symlink, we can delete it and move on
            std::fs::remove_file(module.join(name))?;
        }
    }

    // check if repo in downloads, if not, get it
    let original = get_git_path()?.join(name);
    if !original.exists() {
        // doesn't exist, clone it:
        let status = Command::new("git")
            .arg("clone")
            .arg(git)
            .arg(&original)
            .status()?;
        if !status.success() {
            return Err(anyhow!("git clone failed"));
        }
    }
    // now there is a correctly named directory in the downlaods folder,
    // hopefully the git repo but if it's not then that's fine, whatever.

    // make symbolic link here linking to cloned repo
    std::os::unix::fs::symlink(original, module.join(name))?;

    // done!
    Ok(())
}