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use windows::{
    core::{HSTRING, PCWSTR, PWSTR},
    Win32::{
        Foundation::{ERROR_MORE_DATA, ERROR_SUCCESS, WIN32_ERROR},
        System::RestartManager::{
            RmEndSession, RmForceShutdown, RmGetList, RmRegisterResources,
            RmShutdown, RmStartSession, CCH_RM_SESSION_KEY, RM_PROCESS_INFO,
        },
    },
};

/// https://learn.microsoft.com/en-us/windows/win32/rstmgr/restart-manager-portal
/// Release file locking by seamlessly restart the process which lock the file
/// Most of the times the process will keep running smoothly after restart
/// It might take some time up to a minute
pub unsafe fn release_file_lock(file_path: &str) -> bool {
    let file_path = HSTRING::from(file_path);
    let mut session: u32 = 0;
    let mut session_key_buffer = [0_u16; (CCH_RM_SESSION_KEY as usize) + 1];
    let session_key = PWSTR(session_key_buffer.as_mut_ptr());
    let result = RmStartSession(&mut session, 0, session_key);
    if WIN32_ERROR(result) == ERROR_SUCCESS {
        let result = RmRegisterResources(
            session,
            Some(&[PCWSTR(file_path.as_ptr())]),
            None,
            None,
        );
        if WIN32_ERROR(result) == ERROR_SUCCESS {
            let mut pnprocinfoneeded: u32 = 0;
            let mut rgaffectedapps: [RM_PROCESS_INFO; 1] = [RM_PROCESS_INFO {
                ..Default::default()
            }];
            let mut lpdwrebootreasons: u32 = 0;
            let mut pnprocinfo: u32 = 0;
            let result = RmGetList(
                session,
                &mut pnprocinfoneeded,
                &mut pnprocinfo,
                Some(rgaffectedapps.as_mut_ptr()),
                &mut lpdwrebootreasons,
            );
            if WIN32_ERROR(result) == ERROR_SUCCESS
                || WIN32_ERROR(result) == ERROR_MORE_DATA
            {
                if pnprocinfoneeded > 0 {
                    // If current process does not have enough privileges to
                    // close one of the "offending"
                    // processes, you'll get ERROR_FAIL_NOACTION_REBOOT
                    let result =
                        RmShutdown(session, RmForceShutdown.0 as u32, None);
                    if WIN32_ERROR(result) == ERROR_SUCCESS {
                        // success
                        RmEndSession(session);
                        return true;
                    }
                } else {
                    // success
                    RmEndSession(session);
                    return true;
                }
            }
        }
        RmEndSession(session);
        return false;
    }
    false
}