use anyhow::Result;
use clap::{Parser, ValueEnum};
use link2epub::{convert, Format, Options};

const VERSION: &str = "v0_20260914";

#[derive(Debug, Parser)]
#[command(version, about)]
struct Cli {
    /// url of the article to download
    url: String,

    /// output type: epub or mobi
    #[arg(short = 't', value_enum, default_value_t = OutputFormat::Epub)]
    output_type: OutputFormat,
}

#[derive(Clone, Copy, Debug, ValueEnum)]
enum OutputFormat {
    Epub,
    Mobi,
}

impl From<OutputFormat> for Format {
    fn from(value: OutputFormat) -> Self {
        match value {
            OutputFormat::Epub => Self::Epub,
            OutputFormat::Mobi => Self::Mobi,
        }
    }
}

fn main() -> Result<()> {
    println!("link2epub (rs) version {}", VERSION);
    let cli = Cli::parse();
    let output = convert(Options {
        url: cli.url,
        format: cli.output_type.into(),
    })?;
    println!("Created {}", output.display());
    Ok(())
}