// SPDX-License-Identifier: Apache-2.0
#include "sdl_audio.h"

#import <AVFoundation/AVFoundation.h>
#include <atomic>

error_t sdl_audio_microphone_permission() {
    @autoreleasepool {
        switch ([AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeAudio]) {
            case AVAuthorizationStatusAuthorized:
                return ERROR_NONE;
            case AVAuthorizationStatusDenied:
            case AVAuthorizationStatusRestricted:
                return ERROR_NOT_ALLOWED;
            case AVAuthorizationStatusNotDetermined: {
                static std::atomic<bool> requested { false };
                if (!requested.exchange(true)) {
                    [AVCaptureDevice requestAccessForMediaType:AVMediaTypeAudio completionHandler:^(BOOL granted) {
                        requested.store(false);
                    }];
                }
                return ERROR_RESOURCE_BUSY;
            }
        }
        return ERROR_NOT_ALLOWED;
    }
}