use crate::command_runner::CommandRunner;
use crate::symbols::Symbol;
use async_trait::async_trait;
use std::borrow::Borrow;
use std::error::Error;
use std::path::Path;

#[derive(Debug)]
pub struct Csr<C, D, K, P> {
  command_runner: C,
  domain: D,
  key_path: K,
  csr_path: P,
}

impl<C, D, K, P> Csr<C, D, K, P> {
  pub const fn new(command_runner: C, domain: D, key_path: K, csr_path: P) -> Self {
    Self {
      command_runner,
      domain,
      key_path,
      csr_path,
    }
  }
}

#[async_trait(?Send)]
impl<C: CommandRunner, D: Borrow<str>, K: Borrow<Path>, P: Borrow<Path>> Symbol
  for Csr<C, D, K, P>
{
  async fn target_reached(&self) -> Result<bool, Box<dyn Error>> {
    if !self.csr_path.borrow().exists() {
      return Ok(false);
    }

    let output = self
      .command_runner
      .get_stderr(
        "openssl",
        args!["req", "-in", self.csr_path.borrow(), "-noout", "-verify",],
      )
      .await?;
    Ok(output == b"verify OK\n")
  }

  async fn execute(&self) -> Result<(), Box<dyn Error>> {
    self
      .command_runner
      .run_successfully(
        "openssl",
        args![
          "req",
          "-new",
          "-sha256",
          "-key",
          self.key_path.borrow(),
          "-out",
          self.csr_path.borrow(),
          "-subj",
          format!("/CN={}", self.domain.borrow()),
        ],
      )
      .await
  }
}

#[cfg(test)]
mod test {}