use crate::stack::Stackable;

use foreign_types::ForeignTypeRef;

use libc::c_ulong;

use std::ffi::CStr;

use std::str;

/// fake free method, since SRTP_PROTECTION_PROFILE is static

unsafe fn free(_profile: *mut ffi::SRTP_PROTECTION_PROFILE) {}

foreign_type_and_impl_send_sync! {

    type CType = ffi::SRTP_PROTECTION_PROFILE;

    fn drop = free;

    pub struct SrtpProtectionProfile;

    /// Reference to `SrtpProtectionProfile`.

    pub struct SrtpProtectionProfileRef;

}

impl Stackable for SrtpProtectionProfile {

    type StackType = ffi::stack_st_SRTP_PROTECTION_PROFILE;

}

impl SrtpProtectionProfileRef {

    pub fn id(&self) -> SrtpProfileId {

        SrtpProfileId::from_raw(unsafe { (*self.as_ptr()).id })

    }

    pub fn name(&self) -> &'static str {

        unsafe { CStr::from_ptr((*self.as_ptr()).name as *const _) }

            .to_str()

            .expect("should be UTF-8")

    }

}

/// An identifier of an SRTP protection profile.

#[derive(Debug, Copy, Clone, PartialEq, Eq)]

pub struct SrtpProfileId(c_ulong);

impl SrtpProfileId {

    pub const SRTP_AES128_CM_SHA1_80: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AES128_CM_SHA1_80 as c_ulong);

    pub const SRTP_AES128_CM_SHA1_32: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AES128_CM_SHA1_32 as c_ulong);

    pub const SRTP_AES128_F8_SHA1_80: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AES128_F8_SHA1_80 as c_ulong);

    pub const SRTP_AES128_F8_SHA1_32: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AES128_F8_SHA1_32 as c_ulong);

    pub const SRTP_NULL_SHA1_80: SrtpProfileId = SrtpProfileId(ffi::SRTP_NULL_SHA1_80 as c_ulong);

    pub const SRTP_NULL_SHA1_32: SrtpProfileId = SrtpProfileId(ffi::SRTP_NULL_SHA1_32 as c_ulong);

    #[cfg(any(boringssl, ossl110))]

    pub const SRTP_AEAD_AES_128_GCM: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AEAD_AES_128_GCM as c_ulong);

    #[cfg(any(boringssl, ossl110))]

    pub const SRTP_AEAD_AES_256_GCM: SrtpProfileId =

        SrtpProfileId(ffi::SRTP_AEAD_AES_256_GCM as c_ulong);

    /// Creates a `SrtpProfileId` from an integer representation.

    pub fn from_raw(value: c_ulong) -> SrtpProfileId {

        SrtpProfileId(value)

    }

    /// Returns the integer representation of `SrtpProfileId`.

    #[allow(clippy::trivially_copy_pass_by_ref)]

    pub fn as_raw(&self) -> c_ulong {

        self.0

    }

}