// Copyright 2019-2023 Tauri Programme within The Commons Conservancy
// SPDX-License-Identifier: Apache-2.0
// SPDX-License-Identifier: MIT

//! Parse arguments from your Command Line Interface.
//!
//! - Supported platforms: Windows, Linux and macOS.

#![doc(
    html_logo_url = "https://github.com/tauri-apps/tauri/raw/dev/app-icon.png",
    html_favicon_url = "https://github.com/tauri-apps/tauri/raw/dev/app-icon.png"
)]

use tauri::{
    plugin::{Builder, PluginApi, TauriPlugin},
    AppHandle, Manager, Runtime, State,
};

mod config;
mod error;
mod parser;

use config::{Arg, Config};

pub use error::{Error, Result};
pub use parser::{ArgData, Matches, SubcommandMatches};

pub struct Cli<R: Runtime>(PluginApi<R, Config>);

impl<R: Runtime> Cli<R> {
    pub fn matches(&self) -> Result<parser::Matches> {
        parser::get_matches(self.0.config(), self.0.app().package_info(), None)
    }

    pub fn matches_from(&self, args: Vec<String>) -> Result<parser::Matches> {
        parser::get_matches(self.0.config(), self.0.app().package_info(), Some(args))
    }
}

pub trait CliExt<R: Runtime> {
    fn cli(&self) -> &Cli<R>;
}

impl<R: Runtime, T: Manager<R>> CliExt<R> for T {
    fn cli(&self) -> &Cli<R> {
        self.state::<Cli<R>>().inner()
    }
}

#[tauri::command]
fn cli_matches<R: Runtime>(_app: AppHandle<R>, cli: State<'_, Cli<R>>) -> Result<parser::Matches> {
    cli.matches()
}

pub fn init<R: Runtime>() -> TauriPlugin<R, Config> {
    Builder::new("cli")
        .invoke_handler(tauri::generate_handler![cli_matches])
        .setup(|app, api| {
            app.manage(Cli(api));
            Ok(())
        })
        .build()
}
