mod agent;
mod app;
mod appctl;
mod attach;
mod axread;
mod avatar;
mod botbrowser;
mod browser;
mod cloudbox;
mod channels;
mod computer;
mod desktop;
mod diagram;
mod platform;
mod mic;
#[cfg(target_os = "linux")]
mod x11;
#[cfg(target_os = "linux")]
mod wl;
#[cfg(target_os = "linux")]
mod portal;
#[cfg(target_os = "linux")]
mod desk;
mod egress;
mod httpd;
mod i18n;
mod i18n_table;
mod icons;
mod macapps;
mod mcp;
mod memory;
mod model;
mod notify;
mod phone;
mod policy;
mod preview;
mod providers;
mod remote;
mod routines;
mod teach;
mod share;
mod teams;
mod theme;
mod tools;
mod triggers;
mod vault;
mod vault_store;
mod voice;
mod tunnel;
mod web;
mod wire;

use eframe::egui;
use std::path::PathBuf;

/// PingFang ships as a downloadable system asset on macOS; its folder name varies per Mac.
fn pingfang_path() -> Option<PathBuf> {
    let root = std::path::Path::new("/System/Library/AssetsV2");
    for set in std::fs::read_dir(root).ok()?.flatten() {
        if !set.file_name().to_string_lossy().starts_with("com_apple_MobileAsset_Font") {
            continue;
        }
        for asset in std::fs::read_dir(set.path()).into_iter().flatten().flatten() {
            let p = asset.path().join("AssetData/PingFang.ttc");
            if p.exists() {
                return Some(p);
            }
        }
    }
    None
}

/// PingFang TC Regular inside PingFang.ttc.
const PINGFANG_TC_INDEX: u32 = 2;

/// The window's first size (screenshot mode can ask for another, e.g. ANYBOT_SHOT_SIZE=760x560).
fn shot_size() -> [f32; 2] {
    std::env::var("ANYBOT_SHOT_SIZE").ok().and_then(|v| {
        let (w, h) = v.split_once('x')?;
        Some([w.parse().ok()?, h.parse().ok()?])
    }).unwrap_or([1180.0, 780.0])
}

/// 粉圓體, bundled.
pub const HUNINN: &[u8] = include_bytes!("../fonts/jf-openhuninn-2.1.ttf");

/// "huninn" (粉圓體, the default) or "system".
pub fn font_choice() -> String {
    model::State::path().parent().and_then(|d| std::fs::read_to_string(d.join("font.txt")).ok()).map(|s| s.trim().to_string()).filter(|s| !s.is_empty()).unwrap_or_else(|| "huninn".into())
}

pub fn load_fonts(ctx: &egui::Context) {
    let mut fonts = egui::FontDefinitions::default();
    // One font for Chinese *and* English: mixing egui's built-in Latin font with a Chinese
    // fallback put the two on different baselines and sizes ("Bot 設定" looked broken).
    // So a CJK font that has good Latin letters goes first; egui's own fonts stay behind it
    // only for symbols and emoji it lacks.
    let mut candidates: Vec<(PathBuf, u32)> = pingfang_path().map(|p| vec![(p, PINGFANG_TC_INDEX)]).unwrap_or_default();
    candidates.extend(
        [
            ("/System/Library/Fonts/Hiragino Sans GB.ttc", 0),
            ("/System/Library/Fonts/STHeiti Medium.ttc", 0),
            ("/System/Library/Fonts/Supplemental/Arial Unicode.ttf", 0),
            ("C:\\Windows\\Fonts\\msjh.ttc", 0),
            ("C:\\Windows\\Fonts\\msyh.ttc", 0),
            // Linux: Noto Sans CJK (face 3 = Traditional Chinese) on Debian/Ubuntu, Arch, Fedora; then WenQuanYi.
            ("/usr/share/fonts/opentype/noto/NotoSansCJK-Regular.ttc", 3),
            ("/usr/share/fonts/noto-cjk/NotoSansCJK-Regular.ttc", 3),
            ("/usr/share/fonts/google-noto-cjk/NotoSansCJK-Regular.ttc", 3),
            ("/usr/share/fonts/truetype/wqy/wqy-microhei.ttc", 0),
        ]
        .into_iter()
        .map(|(p, i)| (PathBuf::from(p), i)),
    );
    // Code: the original's `--cursor-font-family-mono` list is ui-monospace, SFMono-Regular, Menlo…
    for path in ["/System/Library/Fonts/SFNSMono.ttf", "/System/Library/Fonts/Menlo.ttc"] {
        if let Ok(bytes) = std::fs::read(path) {
            fonts.font_data.insert("mono".into(), egui::FontData::from_owned(bytes).into());
            fonts.families.entry(egui::FontFamily::Monospace).or_default().insert(0, "mono".into());
            break;
        }
    }
    for (path, index) in candidates {
        if let Ok(bytes) = std::fs::read(&path) {
            let mut data = egui::FontData::from_owned(bytes);
            data.index = index;
            fonts.font_data.insert("cjk".into(), data.into());
            fonts.families.entry(egui::FontFamily::Proportional).or_default().insert(0, "cjk".into());
            // Code stays in the monospace font; Chinese inside code falls back to the same font.
            fonts.families.entry(egui::FontFamily::Monospace).or_default().push("cjk".into());
            break;
        }
    }
    // 粉圓體 (jf open 粉圓, SIL OFL 1.1, fonts/OFL.txt) goes first everywhere it has the letter;
    // the system font above fills in what it lacks (some simplified characters, symbols).
    if font_choice() == "huninn" {
        fonts.font_data.insert("huninn".into(), egui::FontData::from_static(HUNINN).into());
        fonts.families.entry(egui::FontFamily::Proportional).or_default().insert(0, "huninn".into());
        let mono = fonts.families.entry(egui::FontFamily::Monospace).or_default();
        let at = mono.iter().position(|f| f == "cjk").unwrap_or(mono.len());
        mono.insert(at, "huninn".into());
    }
    ctx.set_fonts(fonts);
}

/// The window icon (Linux taskbars and window switchers; macOS uses the app bundle's).
fn app_icon() -> egui::IconData {
    let svg = include_str!("../icons/anybot.svg");
    let px = 256u32;
    let tree = resvg::usvg::Tree::from_str(svg, &resvg::usvg::Options::default()).expect("icon svg");
    let mut pm = resvg::tiny_skia::Pixmap::new(px, px).expect("icon pixmap");
    let s = px as f32 / tree.size().width();
    resvg::render(&tree, resvg::tiny_skia::Transform::from_scale(s, s), &mut pm.as_mut());
    // tiny-skia is premultiplied; IconData wants straight alpha.
    let mut rgba = pm.take();
    for c in rgba.chunks_exact_mut(4) {
        let a = c[3] as u32;
        if a > 0 && a < 255 {
            for v in &mut c[..3] {
                *v = ((*v as u32 * 255 + a / 2) / a).min(255) as u8;
            }
        }
    }
    egui::IconData { rgba, width: px, height: px }
}

/// `anybot --write-icon out.png [size]`: the app icon as a PNG (for Linux packages).
fn write_icon(out: &str, px: u32) -> Result<(), String> {
    let icon = app_icon();
    let img = image::RgbaImage::from_raw(icon.width, icon.height, icon.rgba).ok_or("icon")?;
    let img = if px != icon.width { image::imageops::resize(&img, px, px, image::imageops::FilterType::Lanczos3) } else { img };
    img.save(out).map_err(|e| e.to_string())
}

fn main() -> eframe::Result<()> {
    let args: Vec<String> = std::env::args().collect();
    let screenshot = args.iter().position(|a| a == "--screenshot").and_then(|i| args.get(i + 1)).map(PathBuf::from);
    if args.get(1).map(String::as_str) == Some("--write-icon") {
        let out = args.get(2).cloned().unwrap_or_else(|| "anybot.png".into());
        let px = args.get(3).and_then(|v| v.parse().ok()).unwrap_or(256);
        if let Err(e) = write_icon(&out, px) {
            eprintln!("{e}");
            std::process::exit(1);
        }
        return Ok(());
    }
    // For testing on a new system: `anybot --tool computer_use_screenshot '{}' computer_use_click
    // '{"x":10,"y":20}' …` runs computer tools in order (one process, so the screenshot's scale
    // carries over), prints what the bot would hear, and saves screenshots as anybot-tool-N.jpg
    // in the temp folder.
    if args.get(1).map(String::as_str) == Some("--tool") {
        let mut all_ok = true;
        for (i, pair) in args[2..].chunks(2).enumerate() {
            let json = pair.get(1).cloned().unwrap_or_else(|| "{}".into());
            let (text, ok, img) = computer::run(&pair[0], &json);
            println!("{} {}: {text}", pair[0], if ok { "ok" } else { "failed" });
            if let Some(b64) = img {
                use base64::Engine;
                let out = std::env::temp_dir().join(format!("anybot-tool-{i}.jpg"));
                let _ = std::fs::write(&out, base64::engine::general_purpose::STANDARD.decode(b64).unwrap_or_default());
                println!("  saved {}", out.display());
            }
            all_ok &= ok;
            std::thread::sleep(std::time::Duration::from_millis(300));
        }
        std::process::exit(if all_ok { 0 } else { 1 });
    }
    // For trying agent-desktop on a new system: `anybot --desktop snapshot '{"app":"Finder"}'`.
    if args.get(1).map(String::as_str) == Some("--desktop") {
        let cmd = args.get(2).cloned().unwrap_or_else(|| "apps".into());
        let v: serde_json::Value = serde_json::from_str(args.get(3).map(String::as_str).unwrap_or("{}")).unwrap_or_default();
        match desktop::run(&cmd, &v) {
            Ok(out) => println!("{}", serde_json::to_string_pretty(&out).unwrap_or_default()),
            Err(e) => {
                eprintln!("{e}");
                std::process::exit(1);
            }
        }
        std::process::exit(0);
    }
    if args.get(1).map(String::as_str) == Some("--ask") {
        let text = args[2..].join(" ");
        let ctx = egui::Context::default();
        app::App::ask_cli(&ctx, &text);
    }
    // No window: keep the bots working and answer the phone (always-on Mac or server).
    if args.iter().any(|a| a == "--serve") {
        let ctx = egui::Context::default();
        app::App::serve(&ctx);
    }

    let options = eframe::NativeOptions {
        viewport: egui::ViewportBuilder::default()
            .with_title("AnyBot")
            .with_inner_size(shot_size())
            .with_min_inner_size([app::SIDEBAR_MIN_WIDTH + app::CHAT_MIN_WIDTH, 480.0])
            .with_app_id("anybot")
            .with_icon(app_icon()),
        ..Default::default()
    };
    eframe::run_native(
        "AnyBot",
        options,
        Box::new(move |cc| {
            load_fonts(&cc.egui_ctx);
            Ok(Box::new(app::App::new(&cc.egui_ctx, screenshot)))
        }),
    )
}