// UnityiOSBridge.mm
#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
//#import <AppTrackingTransparency/AppTrackingTransparency.h>
//#import <AdSupport/ASIdentifierManager.h>
#import <CoreTelephony/CTCellularData.h>
#import <SystemConfiguration/CaptiveNetwork.h>
#import "UnityInterface.h"

// ==================== IDFA ====================
// static NSString *cachedIDFA = @"";

// #ifdef __cplusplus
// extern "C" {
// #endif

// void RequestIDFAFromUnity() {
//     if (@available(iOS 14, *)) {
//         [ATTrackingManager requestTrackingAuthorizationWithCompletionHandler:^(ATTrackingManagerAuthorizationStatus status) {
//             if (status == ATTrackingManagerAuthorizationStatusAuthorized) {
//                 cachedIDFA = [[ASIdentifierManager sharedManager].advertisingIdentifier UUIDString];
//             } else {
//                 cachedIDFA = @"Permission Denied";
//             }
//         }];
//     } else {
//         if ([[ASIdentifierManager sharedManager] isAdvertisingTrackingEnabled]) {
//             cachedIDFA = [[ASIdentifierManager sharedManager].advertisingIdentifier UUIDString];
//         } else {
//             cachedIDFA = @"Tracking Disabled";
//         }
//     }
// }

// const char* GetCachedIDFA() {
//     const char* utf8Str = [cachedIDFA UTF8String];
//     if (utf8Str == nil) return NULL;
//     char* result = (char*)malloc(strlen(utf8Str) + 1);
//     strcpy(result, utf8Str);
//     return result;
// }

// #ifdef __cplusplus
// }
// #endif

// ==================== iOS Version ====================
extern "C" {
    char* _getVersion() {
        NSString *version = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleShortVersionString"];
        NSString *build = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleVersion"];
        NSString *combinedVersion = [NSString stringWithFormat:@"%@.%@", version, build];

        const char *cString = [combinedVersion UTF8String];
        char *result = (char*)malloc(strlen(cString) + 1);
        strcpy(result, cString);
        return result;
    }

    void _freeMemory(void *ptr) {
        free(ptr);
    }
}

// ==================== Network Permission ====================
typedef void (*UnityCallback)(int status);
static CTCellularData *cellularData = nil;
static UnityCallback currentCallback = nil;
// 添加回调函数指针
typedef void (*UnityAlertCallback)(void);

extern "C" {
    int CheckNetworkPermission() {
        if (@available(iOS 9.0, *)) {
            CTCellularDataRestrictedState state = cellularData.restrictedState;
            switch (state) {
                case kCTCellularDataRestricted:
                    return 3; // Restricted
                case kCTCellularDataNotRestricted:
                    return 3; // Authorized
                default:
                    return 3; // NotDetermined
            }
        }
        return 3; // iOS < 9 default authorized
    }

    void RequestNetworkPermission() {
        if (@available(iOS 9.0, *)) {
            if (!cellularData) {
                cellularData = [[CTCellularData alloc] init];
            }

            cellularData.cellularDataRestrictionDidUpdateNotifier = ^(CTCellularDataRestrictedState state) {
                if (state != kCTCellularDataRestrictedStateUnknown) {
                    int status = (state == kCTCellularDataNotRestricted) ? 3 : 1;
                    if (currentCallback) currentCallback(status);
                }
            };
            // 触发系统权限弹窗（通过发起网络请求）
            NSURL *url = [NSURL URLWithString:@"https://www.apple.com"];
            NSURLSessionDataTask *task = [[NSURLSession sharedSession] dataTaskWithURL:url];
            [task resume];
        }
    }

    void SetPermissionCallback(UnityCallback callback) {
        currentCallback = callback;
    }

    // 显示权限被拒绝的弹窗
   
    void ShowPermissionDeniedAlertWithCallback(UnityAlertCallback callback) {
        dispatch_async(dispatch_get_main_queue(), ^{
            UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Network Permission Required"
                                                                         message:@"This game requires a connection to the server for gameplay and display the ads, Please enable network access in Settings"
                                                                  preferredStyle:UIAlertControllerStyleAlert];
            
            UIAlertAction *settingsAction = [UIAlertAction actionWithTitle:@"Go to Settings"
                                                                     style:UIAlertActionStyleDefault
                                                                   handler:^(UIAlertAction * _Nonnull action) {
                NSURL *settingsURL = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
                if (@available(iOS 10.0, *)) {
                    [[UIApplication sharedApplication] openURL:settingsURL options:@{} completionHandler:nil];
                } else {
                    [[UIApplication sharedApplication] openURL:settingsURL];
                } 
                if (callback) callback();
            }];
            
            UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel"
                                                                 style:UIAlertActionStyleCancel
                                                               handler:^(UIAlertAction * _Nonnull action) {
                if (callback) callback();
            }];
            
            [alert addAction:settingsAction];
            [alert addAction:cancelAction];
            [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification
                                                        object:nil
                                                         queue:[NSOperationQueue mainQueue]
                                                    usingBlock:^(NSNotification * _Nonnull note) {
                [alert dismissViewControllerAnimated:NO completion:nil];
            }];
            [[UIApplication sharedApplication].keyWindow.rootViewController presentViewController:alert animated:YES completion:nil];
        });
    }
}

// ==================== Screen Info ====================
extern "C" {
    void GetScreenResolution(float* width, float* height) {
        CGRect screenBounds = [UIScreen mainScreen].bounds;
        *width = screenBounds.size.width;
        *height = screenBounds.size.height;
    }

    float GetScaleFactor() {
        return [UIScreen mainScreen].scale;
    }
}