// This file was generated by gir (https://github.com/gtk-rs/gir)
// from gir-files (https://github.com/gtk-rs/gir-files)
// DO NOT EDIT

use crate::Subprocess;
use crate::SubprocessFlags;
use glib::translate::*;
#[cfg(any(unix, feature = "dox"))]
#[cfg_attr(feature = "dox", doc(cfg(unix)))]
use std::boxed::Box as Box_;
use std::fmt;
use std::ptr;

glib::wrapper! {
    /// This class contains a set of options for launching child processes,
    /// such as where its standard input and output will be directed, the
    /// argument list, the environment, and more.
    ///
    /// While the [`Subprocess`][crate::Subprocess] class has high level functions covering
    /// popular cases, use of this class allows access to more advanced
    /// options. It can also be used to launch multiple subprocesses with
    /// a similar configuration.
    ///
    /// # Implements
    ///
    /// [`trait@glib::ObjectExt`]
    #[doc(alias = "GSubprocessLauncher")]
    pub struct SubprocessLauncher(Object<ffi::GSubprocessLauncher>);

    match fn {
        type_ => || ffi::g_subprocess_launcher_get_type(),
    }
}

impl SubprocessLauncher {
    /// Creates a new [`SubprocessLauncher`][crate::SubprocessLauncher].
    ///
    /// The launcher is created with the default options. A copy of the
    /// environment of the calling process is made at the time of this call
    /// and will be used as the environment that the process is launched in.
    /// ## `flags`
    /// [`SubprocessFlags`][crate::SubprocessFlags]
    #[doc(alias = "g_subprocess_launcher_new")]
    pub fn new(flags: SubprocessFlags) -> SubprocessLauncher {
        unsafe { from_glib_full(ffi::g_subprocess_launcher_new(flags.into_glib())) }
    }

    /// Returns the value of the environment variable `variable` in the
    /// environment of processes launched from this launcher.
    ///
    /// On UNIX, the returned string can be an arbitrary byte string.
    /// On Windows, it will be UTF-8.
    /// ## `variable`
    /// the environment variable to get
    ///
    /// # Returns
    ///
    /// the value of the environment variable,
    ///  [`None`] if unset
    #[doc(alias = "g_subprocess_launcher_getenv")]
    pub fn getenv<P: AsRef<std::path::Path>>(&self, variable: P) -> Option<std::path::PathBuf> {
        unsafe {
            from_glib_none(ffi::g_subprocess_launcher_getenv(
                self.to_glib_none().0,
                variable.as_ref().to_glib_none().0,
            ))
        }
    }

    /// Sets up a child setup function.
    ///
    /// The child setup function will be called after `fork()` but before
    /// `exec()` on the child's side.
    ///
    /// `destroy_notify` will not be automatically called on the child's side
    /// of the `fork()`. It will only be called when the last reference on the
    /// [`SubprocessLauncher`][crate::SubprocessLauncher] is dropped or when a new child setup function is
    /// given.
    ///
    /// [`None`] can be given as `child_setup` to disable the functionality.
    ///
    /// Child setup functions are only available on UNIX.
    /// ## `child_setup`
    /// a `GSpawnChildSetupFunc` to use as the child setup function
    /// ## `destroy_notify`
    /// a `GDestroyNotify` for `user_data`
    #[cfg(any(unix, feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(unix)))]
    #[doc(alias = "g_subprocess_launcher_set_child_setup")]
    pub fn set_child_setup<P: Fn() + 'static>(&self, child_setup: P) {
        let child_setup_data: Box_<P> = Box_::new(child_setup);
        unsafe extern "C" fn child_setup_func<P: Fn() + 'static>(user_data: glib::ffi::gpointer) {
            let callback: &P = &*(user_data as *mut _);
            (*callback)();
        }
        let child_setup = Some(child_setup_func::<P> as _);
        unsafe extern "C" fn destroy_notify_func<P: Fn() + 'static>(data: glib::ffi::gpointer) {
            let _callback: Box_<P> = Box_::from_raw(data as *mut _);
        }
        let destroy_call3 = Some(destroy_notify_func::<P> as _);
        let super_callback0: Box_<P> = child_setup_data;
        unsafe {
            ffi::g_subprocess_launcher_set_child_setup(
                self.to_glib_none().0,
                child_setup,
                Box_::into_raw(super_callback0) as *mut _,
                destroy_call3,
            );
        }
    }

    /// Sets the current working directory that processes will be launched
    /// with.
    ///
    /// By default processes are launched with the current working directory
    /// of the launching process at the time of launch.
    /// ## `cwd`
    /// the cwd for launched processes
    #[doc(alias = "g_subprocess_launcher_set_cwd")]
    pub fn set_cwd<P: AsRef<std::path::Path>>(&self, cwd: P) {
        unsafe {
            ffi::g_subprocess_launcher_set_cwd(
                self.to_glib_none().0,
                cwd.as_ref().to_glib_none().0,
            );
        }
    }

    /// Replace the entire environment of processes launched from this
    /// launcher with the given 'environ' variable.
    ///
    /// Typically you will build this variable by using `g_listenv()` to copy
    /// the process 'environ' and using the functions `g_environ_setenv()`,
    /// `g_environ_unsetenv()`, etc.
    ///
    /// As an alternative, you can use [`setenv()`][Self::setenv()],
    /// [`unsetenv()`][Self::unsetenv()], etc.
    ///
    /// Pass an empty array to set an empty environment. Pass [`None`] to inherit the
    /// parent process’ environment. As of GLib 2.54, the parent process’ environment
    /// will be copied when [`set_environ()`][Self::set_environ()] is called.
    /// Previously, it was copied when the subprocess was executed. This means the
    /// copied environment may now be modified (using [`setenv()`][Self::setenv()],
    /// etc.) before launching the subprocess.
    ///
    /// On UNIX, all strings in this array can be arbitrary byte strings.
    /// On Windows, they should be in UTF-8.
    /// ## `env`
    ///
    ///  the replacement environment
    #[doc(alias = "g_subprocess_launcher_set_environ")]
    pub fn set_environ(&self, env: &[&std::path::Path]) {
        unsafe {
            ffi::g_subprocess_launcher_set_environ(self.to_glib_none().0, env.to_glib_none().0);
        }
    }

    /// Sets the flags on the launcher.
    ///
    /// The default flags are [`SubprocessFlags::NONE`][crate::SubprocessFlags::NONE].
    ///
    /// You may not set flags that specify conflicting options for how to
    /// handle a particular stdio stream (eg: specifying both
    /// [`SubprocessFlags::STDIN_PIPE`][crate::SubprocessFlags::STDIN_PIPE] and
    /// [`SubprocessFlags::STDIN_INHERIT`][crate::SubprocessFlags::STDIN_INHERIT]).
    ///
    /// You may also not set a flag that conflicts with a previous call to a
    /// function like [`set_stdin_file_path()`][Self::set_stdin_file_path()] or
    /// [`take_stdout_fd()`][Self::take_stdout_fd()].
    /// ## `flags`
    /// [`SubprocessFlags`][crate::SubprocessFlags]
    #[doc(alias = "g_subprocess_launcher_set_flags")]
    pub fn set_flags(&self, flags: SubprocessFlags) {
        unsafe {
            ffi::g_subprocess_launcher_set_flags(self.to_glib_none().0, flags.into_glib());
        }
    }

    /// Sets the file path to use as the stderr for spawned processes.
    ///
    /// If `path` is [`None`] then any previously given path is unset.
    ///
    /// The file will be created or truncated when the process is spawned, as
    /// would be the case if using '2>' at the shell.
    ///
    /// If you want to send both stdout and stderr to the same file then use
    /// [`SubprocessFlags::STDERR_MERGE`][crate::SubprocessFlags::STDERR_MERGE].
    ///
    /// You may not set a stderr file path if a stderr fd is already set or
    /// if the launcher flags contain any flags directing stderr elsewhere.
    ///
    /// This feature is only available on UNIX.
    /// ## `path`
    /// a filename or [`None`]
    #[cfg(any(unix, feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(unix)))]
    #[doc(alias = "g_subprocess_launcher_set_stderr_file_path")]
    pub fn set_stderr_file_path<P: AsRef<std::path::Path>>(&self, path: P) {
        unsafe {
            ffi::g_subprocess_launcher_set_stderr_file_path(
                self.to_glib_none().0,
                path.as_ref().to_glib_none().0,
            );
        }
    }

    /// Sets the file path to use as the stdin for spawned processes.
    ///
    /// If `path` is [`None`] then any previously given path is unset.
    ///
    /// The file must exist or spawning the process will fail.
    ///
    /// You may not set a stdin file path if a stdin fd is already set or if
    /// the launcher flags contain any flags directing stdin elsewhere.
    ///
    /// This feature is only available on UNIX.
    #[cfg(any(unix, feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(unix)))]
    #[doc(alias = "g_subprocess_launcher_set_stdin_file_path")]
    pub fn set_stdin_file_path(&self, path: &str) {
        unsafe {
            ffi::g_subprocess_launcher_set_stdin_file_path(
                self.to_glib_none().0,
                path.to_glib_none().0,
            );
        }
    }

    /// Sets the file path to use as the stdout for spawned processes.
    ///
    /// If `path` is [`None`] then any previously given path is unset.
    ///
    /// The file will be created or truncated when the process is spawned, as
    /// would be the case if using '>' at the shell.
    ///
    /// You may not set a stdout file path if a stdout fd is already set or
    /// if the launcher flags contain any flags directing stdout elsewhere.
    ///
    /// This feature is only available on UNIX.
    /// ## `path`
    /// a filename or [`None`]
    #[cfg(any(unix, feature = "dox"))]
    #[cfg_attr(feature = "dox", doc(cfg(unix)))]
    #[doc(alias = "g_subprocess_launcher_set_stdout_file_path")]
    pub fn set_stdout_file_path<P: AsRef<std::path::Path>>(&self, path: P) {
        unsafe {
            ffi::g_subprocess_launcher_set_stdout_file_path(
                self.to_glib_none().0,
                path.as_ref().to_glib_none().0,
            );
        }
    }

    /// Sets the environment variable `variable` in the environment of
    /// processes launched from this launcher.
    ///
    /// On UNIX, both the variable's name and value can be arbitrary byte
    /// strings, except that the variable's name cannot contain '='.
    /// On Windows, they should be in UTF-8.
    /// ## `variable`
    /// the environment variable to set,
    ///  must not contain '='
    /// ## `value`
    /// the new value for the variable
    /// ## `overwrite`
    /// whether to change the variable if it already exists
    #[doc(alias = "g_subprocess_launcher_setenv")]
    pub fn setenv<P: AsRef<std::ffi::OsStr>, Q: AsRef<std::ffi::OsStr>>(
        &self,
        variable: P,
        value: Q,
        overwrite: bool,
    ) {
        unsafe {
            ffi::g_subprocess_launcher_setenv(
                self.to_glib_none().0,
                variable.as_ref().to_glib_none().0,
                value.as_ref().to_glib_none().0,
                overwrite.into_glib(),
            );
        }
    }

    //#[doc(alias = "g_subprocess_launcher_spawn")]
    //pub fn spawn(&self, error: &mut glib::Error, argv0: &str, : /*Unknown conversion*//*Unimplemented*/Fundamental: VarArgs) -> Subprocess {
    //    unsafe { TODO: call ffi:g_subprocess_launcher_spawn() }
    //}

    /// Creates a [`Subprocess`][crate::Subprocess] given a provided varargs list of arguments.
    /// ## `argv0`
    /// Command line arguments
    ///
    /// # Returns
    ///
    /// A new [`Subprocess`][crate::Subprocess], or [`None`] on error (and `error` will be set)
    #[doc(alias = "g_subprocess_launcher_spawnv")]
    #[doc(alias = "spawnv")]
    pub fn spawn(&self, argv: &[&std::ffi::OsStr]) -> Result<Subprocess, glib::Error> {
        unsafe {
            let mut error = ptr::null_mut();
            let ret = ffi::g_subprocess_launcher_spawnv(
                self.to_glib_none().0,
                argv.to_glib_none().0,
                &mut error,
            );
            if error.is_null() {
                Ok(from_glib_full(ret))
            } else {
                Err(from_glib_full(error))
            }
        }
    }

    /// Removes the environment variable `variable` from the environment of
    /// processes launched from this launcher.
    ///
    /// On UNIX, the variable's name can be an arbitrary byte string not
    /// containing '='. On Windows, it should be in UTF-8.
    /// ## `variable`
    /// the environment variable to unset,
    ///  must not contain '='
    #[doc(alias = "g_subprocess_launcher_unsetenv")]
    pub fn unsetenv<P: AsRef<std::ffi::OsStr>>(&self, variable: P) {
        unsafe {
            ffi::g_subprocess_launcher_unsetenv(
                self.to_glib_none().0,
                variable.as_ref().to_glib_none().0,
            );
        }
    }
}

impl fmt::Display for SubprocessLauncher {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        f.write_str("SubprocessLauncher")
    }
}