wodeshebao-iOS/我的社保/Public/Manager/SelectSinglePhoto/SPSBSelectSinglePhotoManager.m

//
//  SPSBSelectSinglePhotoManager.m
//  我的社保
//
//  Created by shanp on 2021/5/13.
//

#import "SPSBSelectSinglePhotoManager.h"
#import <NSObject+JXHNotification.h>
#import "SPSBNotificationDelegateManager.h"
#import "SPSBBusinessManager.h"
#import <Photos/Photos.h>
#import <JXHSystemShortcut.h>
#import "SPSBSelectSinglePhotoViewController.h"
#import <JXHMacro.h>

@interface SPSBSelectSinglePhotoManager ()<SPSBNotificationDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate> {
    CGFloat _proportion;
    __weak UIViewController *_myViewController;
    bool _isOpenCamera;
    void (^_completion)(UIImage *_Nullable image, NSValue *_Nullable rect);
}

@end

@implementation SPSBSelectSinglePhotoManager

- (instancetype)initWithProportion:(CGFloat)proportion myController:(UIViewController *)myController completion:(void(^)(UIImage *_Nullable image, NSValue *_Nullable rect))completion {
    self = [super init];
    if (!self) return nil;
    _proportion = proportion;
    _myViewController = myController;
    _completion = completion;
    spsb_setNotificationKey(SPSBAppStatusNotificationKey);
    @weakify(self)
    [self addNotificationName:SPSBReopenCameraNotification block:^(id object, NSDictionary *userInfo) {
        @strongify(self)
        [self openCamera];
    }];
    [self addNotificationName:UIApplicationDidEnterBackgroundNotification block:^(id object, NSDictionary *userInfo) {
        @strongify(self)
        if (self->_isOpenCamera) {
            self->_isOpenCamera = false;
            [self->_myViewController dismissViewControllerAnimated:false completion:nil];
        }
    }];
    return self;
}

- (void)dealloc {
    spsb_removeNotificationKey(SPSBAppStatusNotificationKey);
    [self removeAllNotification];
}

//打开相机
- (void)openCamera {
    //判断权限
    AVAuthorizationStatus status = [AVCaptureDevice authorizationStatusForMediaType:AVMediaTypeVideo];
    if (status == AVAuthorizationStatusNotDetermined) {
        [AVCaptureDevice requestAccessForMediaType:AVMediaTypeVideo completionHandler:^(BOOL granted) {
            dispatch_async(dispatch_get_main_queue(), ^{
                [self openCamera];
            });
        }];
        return;
    }
    if (status == AVAuthorizationStatusRestricted || status == AVAuthorizationStatusDenied) {
        @weakify(self)
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"需要相机权限" message:@"是否前往设置开启相机权限" preferredStyle:UIAlertControllerStyleAlert];
        
        [alert addAction:[UIAlertAction actionWithTitle:@"去开启" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
            @strongify(self)
            [self toSetting];
        }]];
        [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        }]];
        [_myViewController presentViewController:alert animated:true completion:nil];
        return;
    }
    //判断相机能否打开
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        //打开相机
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.delegate = self;
        imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
        _myViewController.modalPresentationStyle = UIModalPresentationOverCurrentContext;
        [_myViewController presentViewController:imagePicker animated:true completion:^{
//            NSLog(@"打开相机");
        }];
        _isOpenCamera = true;
    } else {
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"相机无法打开" preferredStyle:UIAlertControllerStyleAlert];
        [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        }]];
        [alert addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        }]];
        
        [_myViewController presentViewController:alert animated:true completion:^{
        }];
    }
}

- (void)toSetting {
    NSURL *url = [NSURL URLWithString:UIApplicationOpenSettingsURLString];
    if ([jxh_application() canOpenURL:url]) {
        [jxh_application() openURL:url];
    }
}

//打开相册
- (void)openPhotoAlbum {
    //
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
        spsb_setIsOpenAlbum(true);
        UIImagePickerController *imagePicker = [[UIImagePickerController alloc] init];
        imagePicker.modalPresentationStyle = UIModalPresentationFullScreen;
        imagePicker.delegate = self;
        imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        [imagePicker setEditing:true animated:true]; //允许编辑
        [_myViewController presentViewController:imagePicker animated:true completion:^{
            
        }];
    } else {
        UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"相机无法打开" preferredStyle:UIAlertControllerStyleAlert];
        [alert addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
        }]];
        
        [_myViewController presentViewController:alert animated:true completion:^{
        }];
    }
}

#pragma mark - 相册调用方法
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    spsb_setIsOpenAlbum(false);
    _isOpenCamera = false;
    debugLog(@"cancel");
    [picker dismissViewControllerAnimated:true completion:nil];
}

//打开相册之后选择的方法
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    //获得媒体类型
    NSString *mediaType = [info valueForKey:UIImagePickerControllerMediaType];
    if ([mediaType hasSuffix:@"image"]) {
        UIImage *image = [info valueForKey:UIImagePickerControllerOriginalImage];
        if (image) {
            [self pushSelectSinglePhotoViewControllerWithImage:image controller:picker];
            return;
        }
        NSURL *url = [info valueForKey:UIImagePickerControllerReferenceURL];
        NSURLComponents *urlComponents = [[NSURLComponents alloc] initWithString:url.absoluteString];
        __block NSString *localIdentifiers;
        [urlComponents.queryItems enumerateObjectsUsingBlock:^(NSURLQueryItem * _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            if ([obj.name isEqualToString:@"id"]) {
                localIdentifiers = obj.value;
                *stop = true;
            }
        }];
        if (localIdentifiers) {
            PHFetchResult * re = [PHAsset fetchAssetsWithLocalIdentifiers:@[localIdentifiers] options:nil];
            [[PHCachingImageManager defaultManager] requestImageDataForAsset:re.firstObject options:nil resultHandler:^(NSData * _Nullable imageData, NSString * _Nullable dataUTI, UIImageOrientation orientation, NSDictionary * _Nullable info) {
                
                UIImage * img = [UIImage imageWithData:imageData];
                if (img) {
                    if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
                        //将照片存入相册中
                        UIImageWriteToSavedPhotosAlbum(img, nil, nil, nil);
                    }
                    [self pushSelectSinglePhotoViewControllerWithImage:img controller:picker];
                }
                
                
            }];
        }
        
    }
}

- (void)pushSelectSinglePhotoViewControllerWithImage:(UIImage *)image controller:(UIImagePickerController *)picker {
    if (picker.sourceType == UIImagePickerControllerSourceTypeCamera) {
        //将照片存入相册中
        UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil);
    }
    SPSBSelectSinglePhotoViewController *selectSinglePhotoViewController = [[SPSBSelectSinglePhotoViewController alloc] init];
    selectSinglePhotoViewController.spsb_needToDismiss = true;
    selectSinglePhotoViewController.spsb_dataImage = image;
    selectSinglePhotoViewController.spsb_proportion = _proportion;
    @weakify(self)
    [selectSinglePhotoViewController passValue:^(NSValue *value) {
        @strongify(self)
        if (value) {
            self->_isOpenCamera = false;
            spsb_setIsOpenAlbum(false);
            self->_completion(image, value);
        } else {
            self->_completion(nil, nil);
        }
    }];
    [picker pushViewController:selectSinglePhotoViewController animated:true];
}

#pragma mark - SPSBNotificationDelegate
- (void)spsb_shouldDismissAlbum:(void (^)(void))complete {
    if (spsb_isOpenAlbum()) {
        spsb_setIsOpenAlbum(false);
        [_myViewController dismissViewControllerAnimated:false completion:^{
            complete();
        }];
    }
}

@end