// yt - A fully featured command line YouTube client
//
// Copyright (C) 2024 Benedikt Peetz <benedikt.peetz@b-peetz.de>
// SPDX-License-Identifier: GPL-3.0-or-later
//
// This file is part of Yt.
//
// You should have received a copy of the License along with this program.
// If not, see <https://www.gnu.org/licenses/gpl-3.0.txt>.

use crate::{
    app::App,
    cli::{SelectCommand, SharedSelectionCommandArgs},
    storage::video_database::{
        getters::get_video_by_hash,
        setters::{set_video_options, set_video_status},
        VideoOptions, VideoStatus,
    },
};

use anyhow::{Context, Result};

pub async fn handle_select_cmd(
    app: &App,
    cmd: SelectCommand,
    line_number: Option<i64>,
) -> Result<()> {
    match cmd {
        SelectCommand::Pick { shared } => {
            handle_status_change(app, shared, line_number, VideoStatus::Pick).await?;
        }
        SelectCommand::Drop { shared } => {
            handle_status_change(app, shared, line_number, VideoStatus::Drop).await?;
        }
        SelectCommand::Watched { shared } => {
            handle_status_change(app, shared, line_number, VideoStatus::Watched).await?;
        }
        SelectCommand::Watch { shared } => {
            let hash = shared.hash.clone().realize(app).await?;

            let video = get_video_by_hash(app, &hash).await?;
            if video.cache_path.is_some() {
                handle_status_change(app, shared, line_number, VideoStatus::Cached).await?;
            } else {
                handle_status_change(app, shared, line_number, VideoStatus::Watch).await?;
            }
        }

        SelectCommand::Url { shared } => {
            let mut firefox = std::process::Command::new("firefox");
            firefox.args(["-P", "timesinks.youtube"]);
            firefox.arg(shared.url.as_str());
            let _handle = firefox.spawn().context("Failed to run firefox")?;
        }
        SelectCommand::File { .. } => unreachable!("This should have been filtered out"),
    }
    Ok(())
}

async fn handle_status_change(
    app: &App,
    shared: SharedSelectionCommandArgs,
    line_number: Option<i64>,
    new_status: VideoStatus,
) -> Result<()> {
    let hash = shared.hash.realize(app).await?;
    let video_options = VideoOptions::new(
        shared
            .subtitle_langs
            .unwrap_or(app.config.select.subtitle_langs.clone()),
        shared.speed.unwrap_or(app.config.select.playback_speed),
    );
    let priority = compute_priority(line_number, shared.priority);

    set_video_status(app, &hash, new_status, priority).await?;
    set_video_options(app, &hash, &video_options).await?;

    Ok(())
}

fn compute_priority(line_number: Option<i64>, priority: Option<i64>) -> Option<i64> {
    if let Some(pri) = priority {
        Some(pri)
    } else {
        line_number
    }
}