// Copyright © SixtyFPS GmbH <info@slint.dev>
// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-2.0 OR LicenseRef-Slint-Software-3.0

// cSpell: ignore sharedvector textlayout

#![doc = include_str!("README.md")]
#![doc(html_logo_url = "https://slint.dev/logo/slint-logo-square-light.svg")]
#![cfg_attr(docsrs, feature(doc_cfg))]
#![deny(unsafe_code)]
#![allow(clippy::missing_safety_doc)] // FFI surface has many exported unsafe entry points
#![cfg_attr(slint_nightly_test, feature(non_exhaustive_omitted_patterns_lint))]
#![cfg_attr(slint_nightly_test, warn(non_exhaustive_omitted_patterns))]
#![no_std]
#![debugger_visualizer(gdb_script_file = "gdb_pretty_printers.py")]

extern crate alloc;
#[cfg(feature = "std")]
extern crate std;

#[cfg(all(not(feature = "std"), feature = "unsafe-single-threaded"))]
pub mod unsafe_single_threaded;
#[cfg(all(not(feature = "std"), not(feature = "unsafe-single-threaded")))]
compile_error!(
    "At least one of the following feature need to be enabled: `std` or `unsafe-single-threaded`"
);
pub use crate::items::OperatingSystemType;
#[cfg(all(not(feature = "std"), feature = "unsafe-single-threaded"))]
pub use crate::unsafe_single_threaded::thread_local;
#[cfg(feature = "std")]
pub use std::thread_local;

pub mod accessibility;
pub mod animations;
pub mod api;
pub mod callbacks;
pub mod component_factory;
pub mod context;
pub mod cursor;
pub mod data_transfer;
pub mod date_time;
pub mod debug_log;
pub mod future;
pub mod graphics;
pub mod input;
pub mod item_focus;
pub mod item_rendering;
pub mod item_tree;
pub mod items;
pub mod layout;
pub mod lengths;
pub mod menus;
pub mod model;
pub mod partial_renderer;
pub mod platform;
pub mod properties;
pub mod renderer;
#[cfg(feature = "rtti")]
pub mod rtti;
pub mod sharedvector;
pub mod slice;
pub mod string;
pub mod styled_text;
pub mod textlayout;
pub mod timers;
pub mod translations;
pub mod window;

#[doc(inline)]
pub use string::SharedString;

#[doc(inline)]
pub use sharedvector::SharedVector;

#[doc(inline)]
pub use graphics::{ImageInner, StaticTextures};

#[doc(inline)]
pub use properties::Property;

#[doc(inline)]
pub use callbacks::Callback;

#[doc(inline)]
pub use graphics::Color;

#[doc(inline)]
pub use graphics::Brush;

#[doc(inline)]
pub use graphics::RgbaColor;

#[cfg(feature = "std")]
#[doc(inline)]
pub use graphics::PathData;

#[doc(inline)]
pub use graphics::BorderRadius;

#[doc(inline)]
pub use data_transfer::DataTransfer;

pub use context::{SlintContext, SlintContextWeak, with_global_context};

#[cfg(not(slint_int_coord))]
pub type Coord = f32;
#[cfg(slint_int_coord)]
pub type Coord = i32;

/// This type is not exported from the public API crate, so function having this
/// parameter cannot be called from the public API without naming it
#[derive(Debug, Clone, Copy, PartialEq, Eq)]
pub struct InternalToken;

#[cfg(feature = "std")]
thread_local!(
    /// Permit testing code to force an OS type
    pub static OPERATING_SYSTEM_OVERRIDE: core::cell::Cell<Option<OperatingSystemType>> =
        Default::default();
);

#[cfg(not(target_family = "wasm"))]
pub fn detect_operating_system() -> OperatingSystemType {
    #[cfg(feature = "std")]
    if let Some(os_override) = OPERATING_SYSTEM_OVERRIDE.with(|os_override| os_override.get()) {
        return os_override;
    }

    if cfg!(target_os = "android") {
        OperatingSystemType::Android
    } else if cfg!(target_os = "ios") {
        OperatingSystemType::Ios
    } else if cfg!(target_os = "macos") {
        OperatingSystemType::Macos
    } else if cfg!(target_os = "windows") {
        OperatingSystemType::Windows
    } else if cfg!(target_os = "linux") {
        OperatingSystemType::Linux
    } else {
        OperatingSystemType::Other
    }
}

#[cfg(target_family = "wasm")]
pub fn detect_operating_system() -> OperatingSystemType {
    if let Some(os_override) = OPERATING_SYSTEM_OVERRIDE.with(|os_override| os_override.get()) {
        return os_override;
    }

    // Querying the navigator involves a round-trip to JavaScript and some string processing, so
    // cache the result: it cannot change for the lifetime of the page.
    static DETECTED: std::sync::LazyLock<OperatingSystemType> = std::sync::LazyLock::new(|| {
        let mut user_agent =
            web_sys::window().and_then(|w| w.navigator().user_agent().ok()).unwrap_or_default();
        user_agent.make_ascii_lowercase();
        let mut platform =
            web_sys::window().and_then(|w| w.navigator().platform().ok()).unwrap_or_default();
        platform.make_ascii_lowercase();

        if user_agent.contains("ipad") || user_agent.contains("iphone") {
            OperatingSystemType::Ios
        } else if user_agent.contains("android") {
            OperatingSystemType::Android
        } else if platform.starts_with("mac") {
            OperatingSystemType::Macos
        } else if platform.starts_with("win") {
            OperatingSystemType::Windows
        } else if platform.starts_with("linux") {
            OperatingSystemType::Linux
        } else {
            OperatingSystemType::Other
        }
    });
    *DETECTED
}

/// Returns true if the current platform is an Apple platform (macOS, iOS, iPadOS)
pub fn is_apple_platform() -> bool {
    matches!(detect_operating_system(), OperatingSystemType::Macos | OperatingSystemType::Ios)
}

pub fn open_url(url: &str, window: &crate::api::Window) -> Result<(), crate::api::PlatformError> {
    crate::window::WindowInner::from_pub(window).context().platform().open_url(url)
}

#[cfg(target_os = "macos")]
pub fn macos_bring_all_windows_to_front() {
    use objc2::MainThreadMarker;
    use objc2_app_kit::NSApplication;
    let Some(mtm) = MainThreadMarker::new() else { return };
    NSApplication::sharedApplication(mtm).arrangeInFront(None);
}

#[cfg(not(target_os = "macos"))]
pub fn macos_bring_all_windows_to_front() {}