/*
    This file is part of jellything (https://codeberg.org/metamuffin/jellything)
    which is licensed under the GNU Affero General Public License (version 3); see /COPYING.
    Copyright (C) 2026 metamuffin <metamuffin.org>
*/

use jellyui_locale::tr;
use std::fmt::Write;

pub fn format_duration(d: f64) -> String {
    format_duration_mode("en", d, false)
}
pub fn format_duration_long(lang: &str, d: f64) -> String {
    format_duration_mode(lang, d, true)
}
fn format_duration_mode(lang: &str, mut d: f64, long_units: bool) -> String {
    let mut s = String::new();
    let sign = if d > 0. { "" } else { "-" };
    d = d.abs();
    for (short, long, long_pl, k) in [
        ("d", "time.day", "time.days", 60. * 60. * 24.),
        ("h", "time.hour", "time.hours", 60. * 60.),
        ("m", "time.minute", "time.minutes", 60.),
        ("s", "time.second", "time.seconds", 1.),
    ] {
        let h = (d / k).floor();
        d -= h * k;
        if h > 0. {
            if long_units {
                let long = tr(lang, if h != 1. { long_pl } else { long });
                let and = format!(" {} ", tr(lang, "time.and_join"));
                // TODO breaks if seconds is zero
                write!(
                    s,
                    "{}{h} {long}{}",
                    if k != 1. { "" } else { &and },
                    if k > 60. { ", " } else { "" },
                )
                .unwrap();
            } else {
                write!(s, "{h}{short} ").unwrap();
            }
        }
    }
    format!("{sign}{}", s.trim())
}

#[test]
fn test_duration_short() {
    assert_eq!(format_duration(61.).as_str(), "1m 1s");
    assert_eq!(format_duration(3661.).as_str(), "1h 1m 1s");
}
#[test]
fn test_duration_long() {
    assert_eq!(
        format_duration_long("en", 61.).as_str(),
        "1 minute and 1 second"
    );
    assert_eq!(
        format_duration_long("en", 121.).as_str(),
        "2 minutes and 1 second"
    );
    assert_eq!(
        format_duration_long("en", 3661.).as_str(),
        "1 hour, 1 minute and 1 second"
    );
}

pub fn format_size(size: u64) -> String {
    humansize::format_size(size, humansize::DECIMAL)
}

// pub fn node_resolution_name(node: &Object) -> &'static str {
//     let mut maxdim = 0;
//     for t in node.iter(NO_TRACK) {
//         if let Some(width) = t.get(TR_PIXEL_WIDTH) {
//             maxdim = maxdim.max(width)
//         }
//         if let Some(height) = t.get(TR_PIXEL_HEIGHT) {
//             maxdim = maxdim.max(height)
//         }
//     }
//     match maxdim {
//         30720.. => "32K",
//         15360.. => "16K",
//         7680.. => "8K UHD",
//         5120.. => "5K UHD",
//         3840.. => "4K UHD",
//         2560.. => "QHD 1440p",
//         1920.. => "FHD 1080p",
//         1280.. => "HD 720p",
//         854.. => "SD 480p",
//         _ => "Unkown",
//     }
// }

pub fn format_count(n: impl Into<usize>) -> String {
    let n: usize = n.into();

    if n >= 1_000_000 {
        format!("{:.1}M", n as f32 / 1_000_000.)
    } else if n >= 1_000 {
        format!("{:.1}k", n as f32 / 1_000.)
    } else {
        format!("{n}")
    }
}

// pub fn format_chapter(c: &Object) -> (String, String) {
//     (
//         format!(
//             "{}-{}",
//             c.get(CH_START).map(format_duration).unwrap_or_default(),
//             c.get(CH_END).map(format_duration).unwrap_or_default(),
//         ),
//         c.get(CH_NAME).unwrap_or_default().to_string(),
//     )
// }