use anyhow::{bail, Result};
use clap::Parser;

#[derive(Parser, Default, Debug)]
#[clap(
    author = "Mathias Rothenhäusler",
    version,
    about = "Start RCC local test environment."
)]
pub struct Arguments {
    #[arg(help = "Which project folder to use, defined in your env file. E.g. xxx_DIR.")]
    pub project: String,

    #[arg(help = "Possible values are 'up' and 'down'")]
    pub action: String,

    #[arg(
        short,
        long,
        help = "Show which lines were changed (values may include secrets)"
    )]
    pub verbose: bool,
}

impl Arguments {
    pub fn validate(&self) -> Result<()> {
        if self.action == "up" || self.action == "down" {
            return Ok(());
        }

        bail!("Action values are up or down.")
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    fn args_with_action(action: &str) -> Arguments {
        Arguments {
            project: "test".to_string(),
            action: action.to_string(),
            verbose: false,
        }
    }

    #[test]
    fn validate_accepts_up() {
        assert!(args_with_action("up").validate().is_ok());
    }

    #[test]
    fn validate_accepts_down() {
        assert!(args_with_action("down").validate().is_ok());
    }

    #[test]
    fn validate_rejects_invalid() {
        let err = args_with_action("start").validate().unwrap_err();
        assert!(err.to_string().contains("up or down"));
    }
}