//
//  KBPersonInfoVC.m
//  keyBoard
//
//  Created by Mac on 2025/11/11.
//

//
//  KBPersonInfoVC.m
//  个人资料
//

#import "KBPersonInfoVC.h"
#import <Masonry/Masonry.h>
#import "KBPersonInfoItemCell.h"
#import <PhotosUI/PhotosUI.h>
#import "LSTPopView.h"
#import "KBChangeNicknamePopView.h"
#import "KBGenderPickerPopView.h"
#import "KBMyVM.h"
@interface KBPersonInfoVC () <UITableViewDelegate, UITableViewDataSource, PHPickerViewControllerDelegate, UINavigationControllerDelegate, UIImagePickerControllerDelegate>

// 列表
@property (nonatomic, strong) BaseTableView *tableView; // 懒加载

// 头像区（表头）
@property (nonatomic, strong) UIView *headerView;
@property (nonatomic, strong) UIImageView *avatarView;   // 头像
@property (nonatomic, strong) UIButton *editBadge;       // 头像右下角的小铅笔
@property (nonatomic, strong) UILabel *modifyLabel;      // “Modify” 文案

// 底部退出按钮（固定在屏幕底部）
@property (nonatomic, strong) UIButton *logoutBtn;

// 数据
@property (nonatomic, copy) NSArray<NSDictionary *> *items; // {title,value,arrow,copy}
// 压缩后的头像 JPEG 数据（可用于上传）
@property (nonatomic, strong) NSData *avatarJPEGData;

@property (nonatomic, strong) KBMyVM *myVM;

@end

@implementation KBPersonInfoVC

- (void)viewDidLoad {
    [super viewDidLoad];
    self.kb_titleLabel.text = KBLocalized(@"Settings"); // 导航标题
    self.kb_navView.backgroundColor = [UIColor clearColor];
    self.view.backgroundColor = [UIColor colorWithHex:0xF8F8F8];

    // 构造数据
//    self.items = @[
//        @{ @"title": KBLocalized(@"Nickname"), @"value": @"", @"arrow": @YES, @"copy": @NO },
//        @{ @"title": KBLocalized(@"Gender"),   @"value": @"Choose",   @"arrow": @YES, @"copy": @NO },
//        @{ @"title": KBLocalized(@"User ID"),  @"value": @"",  @"arrow": @NO,  @"copy": @YES },
//    ];
    self.items = @[
        @{ @"title": KBLocalized(@"Nickname"), @"value": self.userModel.nickName, @"arrow": @YES, @"copy": @NO },
        @{ @"title": KBLocalized(@"Gender"),   @"value": @"Choose",   @"arrow": @YES, @"copy": @NO },
        @{ @"title": KBLocalized(@"User ID"),  @"value": self.userModel.userId,  @"arrow": @NO,  @"copy": @YES },
    ];

    [self.view addSubview:self.tableView];
    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self.view);
        make.top.equalTo(self.view).offset(KB_NAV_TOTAL_HEIGHT + 10);
    }];

    // 表头
    self.tableView.tableHeaderView = self.headerView;

    // 底部退出按钮固定在屏幕底部
    [self.view addSubview:self.logoutBtn];
    [self.logoutBtn mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self.view).offset(16);
        make.right.equalTo(self.view).offset(-16);
        make.bottom.equalTo(self.view.mas_safeAreaLayoutGuideBottom).offset(-12);
        make.height.mas_equalTo(56);
    }];

    // 列表底部腾出空间，避免被按钮挡住
    UIEdgeInsets inset = self.tableView.contentInset;
    inset.bottom = 56 + 24; // 按钮高度 + 额外间距
    self.tableView.contentInset = inset;
}

- (void)setUserModel:(KBUser *)userModel{
    _userModel = userModel;
    [self.avatarView kb_setAvatarURL:userModel.avatarUrl placeholder:KBPlaceholderImage];
    self.modifyLabel.text = userModel.nickName;
}

#pragma mark - UITableView

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; }
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return self.items.count; }

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 56.0;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 12.0; }
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section { return [UIView new]; }
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section { return 0.01; }

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *cid = @"KBPersonInfoItemCell";
    KBPersonInfoItemCell *cell = [tableView dequeueReusableCellWithIdentifier:cid];
    if (!cell) { cell = [[KBPersonInfoItemCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cid]; }
    NSDictionary *it = self.items[indexPath.row];
    BOOL isTop = (indexPath.row == 0);
    BOOL isBottom = (indexPath.row == self.items.count - 1);
    [cell configWithTitle:it[@"title"]
                    value:it[@"value"]
                showArrow:[it[@"arrow"] boolValue]
                 showCopy:[it[@"copy"] boolValue]
                    isTop:isTop
                 isBottom:isBottom];
    return cell;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.row == 0) {
        // 昵称编辑 -> 弹窗
        CGFloat width = KB_SCREEN_WIDTH;
        KBChangeNicknamePopView *content = [[KBChangeNicknamePopView alloc] initWithFrame:CGRectMake(0, 0, width, 230)];
        content.prefillNickname = self.items.firstObject[@"value"] ?: @"";

        LSTPopView *pop = [LSTPopView initWithCustomView:content
                                              parentView:self.view
                                                popStyle:LSTPopStyleSmoothFromBottom
                                            dismissStyle:LSTDismissStyleSmoothToBottom];
        pop.bgColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
        pop.hemStyle = LSTHemStyleBottom; // 居中
        pop.isClickBgDismiss = YES;       // 点击背景关闭
        pop.isAvoidKeyboard = YES;        // 规避键盘
        pop.avoidKeyboardSpace = 10;

        __weak typeof(self) weakSelf = self;
        __weak typeof(pop) weakPop = pop;
        content.closeHandler = ^{ [weakPop dismiss]; };
        content.saveHandler = ^(NSString *nickname) {
            if (nickname.length > 0) {
                // 更新第一行展示
                NSMutableArray *m = [weakSelf.items mutableCopy];
                NSMutableDictionary *d0 = [m.firstObject mutableCopy];
                d0[@"value"] = nickname; m[0] = d0; weakSelf.items = m;
                [weakSelf.tableView reloadRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:0 inSection:0]] withRowAnimation:UITableViewRowAnimationNone];
            }
            [weakPop dismiss];
        };

        [pop pop];
//        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.15 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ [content focusInput]; });
    } else if (indexPath.row == 1) {
        // 性别选择 -> 弹窗
        NSArray *genders = @[ @{@"id":@"1",@"name":@"Male"}, @{@"id":@"2",@"name":@"Female"}, @{@"id":@"3",@"name":@"The Third Gender"} ];
        CGFloat width = KB_SCREEN_WIDTH;
        KBGenderPickerPopView *content = [[KBGenderPickerPopView alloc] initWithFrame:CGRectMake(0, 0, width, 300)];
        content.items = genders;
        // 取当前展示值对应的 id（如果有的话）
        NSString *curName = self.items[1][@"value"];
        NSString *selId = nil;
        for (NSDictionary *d in genders) { if ([d[@"name"] isEqualToString:curName]) { selId = d[@"id"]; break; } }
        content.selectedId = selId;

        LSTPopView *pop = [LSTPopView initWithCustomView:content
                                              parentView:nil
                                                popStyle:LSTPopStyleSmoothFromBottom
                                            dismissStyle:LSTDismissStyleSmoothToBottom];
        pop.bgColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
        pop.hemStyle = LSTHemStyleBottom;
        pop.isClickBgDismiss = YES;

        __weak typeof(self) weakSelf = self; __weak typeof(pop) weakPop = pop;
        content.closeHandler = ^{ [weakPop dismiss]; };
        content.saveHandler = ^(NSDictionary *selected) {
            NSString *name = selected[@"name"] ?: @"";
            NSMutableArray *m = [weakSelf.items mutableCopy];
            NSMutableDictionary *d1 = [m[1] mutableCopy];
            d1[@"value"] = name; m[1] = d1; weakSelf.items = m;
            [weakSelf.tableView reloadRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:1 inSection:0]] withRowAnimation:UITableViewRowAnimationNone];
            [weakPop dismiss];
        };

        [pop pop];
    }else if (indexPath.row == 2){
        NSString *userID = self.items[2][@"value"];
        if (userID.length == 0) return;
        UIPasteboard.generalPasteboard.string = userID;
        [KBHUD showInfo:KBLocalized(@"Copy Success")];
    }
}

#pragma mark - Actions

- (void)onTapAvatarEdit { [self presentImagePicker]; }

- (void)onTapLogout {
    [self.myVM logout];
}

#pragma mark - Lazy UI（懒加载）

- (UITableView *)tableView {
    if (!_tableView) {
        // 使用 Plain，自行实现卡片留白与圆角，更贴近设计图
        _tableView = [[BaseTableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
        _tableView.backgroundColor = UIColor.clearColor;
        _tableView.showsVerticalScrollIndicator = NO;
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone; // 自定义分割
        _tableView.dataSource = self; _tableView.delegate = self;
        _tableView.contentInset = UIEdgeInsetsMake(8, 0, 16, 0);
    }
    return _tableView;
}

- (UIView *)headerView {
    if (!_headerView) {
        CGFloat w = UIScreen.mainScreen.bounds.size.width;
        UIView *hv = [[UIView alloc] initWithFrame:CGRectMake(0, 0, w, 180)];
        hv.backgroundColor = UIColor.clearColor;

        [hv addSubview:self.avatarView];
        [hv addSubview:self.editBadge];
        [hv addSubview:self.modifyLabel];

        [self.avatarView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.centerX.equalTo(hv);
            make.top.equalTo(hv).offset(12);
            make.width.height.mas_equalTo(96);
        }];
        [self.editBadge mas_makeConstraints:^(MASConstraintMaker *make) {
            make.width.height.mas_equalTo(24);
            make.centerX.equalTo(self.avatarView.mas_right).offset(-15);
            make.centerY.equalTo(self.avatarView.mas_bottom).offset(-15);
        }];
        [self.modifyLabel mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.avatarView.mas_bottom).offset(10);
            make.centerX.equalTo(hv);
        }];

        // 头像可点击：弹系统相册
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(onTapAvatarEdit)];
        [self.avatarView addGestureRecognizer:tap];

        _headerView = hv;
    }
    return _headerView;
}

- (UIImageView *)avatarView {
    if (!_avatarView) {
        _avatarView = [[UIImageView alloc] init];
        _avatarView.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1.0];
        _avatarView.layer.cornerRadius = 48; _avatarView.layer.masksToBounds = YES;
        // 外白描边
        _avatarView.layer.borderWidth = 3.0; _avatarView.layer.borderColor = UIColor.whiteColor.CGColor;
        // 占位图
        UIGraphicsBeginImageContextWithOptions(CGSizeMake(96, 96), NO, 0);
        CGContextRef ctx = UIGraphicsGetCurrentContext();
        [[UIColor colorWithRed:0.86 green:0.95 blue:0.90 alpha:1] setFill];
        CGContextFillEllipseInRect(ctx, CGRectMake(0, 0, 96, 96));
        UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
        _avatarView.image = img;
        _avatarView.userInteractionEnabled = YES;
    }
    return _avatarView;
}

- (UIButton *)editBadge {
    if (!_editBadge) {
        _editBadge = [UIButton buttonWithType:UIButtonTypeCustom];
        _editBadge.layer.cornerRadius = 12; _editBadge.layer.masksToBounds = YES;
        UIImage *img = [UIImage imageNamed:@"myperson_edit_icon"];
        [_editBadge setImage:img forState:UIControlStateNormal];
        [_editBadge addTarget:self action:@selector(onTapAvatarEdit) forControlEvents:UIControlEventTouchUpInside];
    }
    return _editBadge;
}

- (UILabel *)modifyLabel {
    if (!_modifyLabel) {
        _modifyLabel = [UILabel new];
        _modifyLabel.text = @"Modify";
        _modifyLabel.textColor = [UIColor colorWithHex:KBBlackValue];
        _modifyLabel.font = [KBFont bold:18];
    }
    return _modifyLabel;
}

- (UIButton *)logoutBtn {
    if (!_logoutBtn) {
        _logoutBtn = [UIButton buttonWithType:UIButtonTypeSystem];
        [_logoutBtn setTitle:KBLocalized(@"Log Out") forState:UIControlStateNormal];
        [_logoutBtn setTitleColor:[UIColor colorWithHex:0xFF0000] forState:UIControlStateNormal];
        _logoutBtn.titleLabel.font = [KBFont medium:16];
        _logoutBtn.backgroundColor = UIColor.whiteColor;
        _logoutBtn.layer.cornerRadius = 12; _logoutBtn.layer.masksToBounds = YES;
        [_logoutBtn addTarget:self action:@selector(onTapLogout) forControlEvents:UIControlEventTouchUpInside];
    }
    return _logoutBtn;
}

#pragma mark - Image Picker

- (void)presentImagePicker {
    if (@available(iOS 14.0, *)) {
        PHPickerConfiguration *config = [[PHPickerConfiguration alloc] init];
        config.selectionLimit = 1; // 只选一张
        config.filter = [PHPickerFilter imagesFilter];
        PHPickerViewController *picker = [[PHPickerViewController alloc] initWithConfiguration:config];
        picker.delegate = self;
        [self presentViewController:picker animated:YES completion:nil];
    } else {
        UIImagePickerController *picker = [[UIImagePickerController alloc] init];
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        picker.delegate = self;
        [self presentViewController:picker animated:YES completion:nil];
    }
}

#pragma mark - PHPickerViewControllerDelegate

- (void)picker:(PHPickerViewController *)picker didFinishPicking:(NSArray<PHPickerResult *> *)results API_AVAILABLE(ios(14.0)) {
    [picker dismissViewControllerAnimated:YES completion:nil];

    PHPickerResult *first = results.firstObject;
    if (!first) return;

    NSItemProvider *p = first.itemProvider;
    if ([p canLoadObjectOfClass:UIImage.class]) {
        __weak typeof(self) weakSelf = self;
        [p loadObjectOfClass:UIImage.class completionHandler:^(__kindof id<NSItemProviderReading>  _Nullable object, NSError * _Nullable error) {
            UIImage *img = ([object isKindOfClass:UIImage.class] ? (UIImage *)object : nil);
            if (!img) return;
            NSUInteger targetKB = 50;
            NSData *compressedData = [weakSelf kb_compressImage:img targetKB:targetKB];
            if (!compressedData) return;
            UIImage *compressedImage = [UIImage imageWithData:compressedData];
            dispatch_async(dispatch_get_main_queue(), ^{
                [weakSelf.myVM upLoadAvatarWithData:compressedData completion:^(BOOL success, NSError * _Nullable error) {
                    if (error) {
                        [KBHUD showError:error.localizedDescription];
                        return;
                    }
                    dispatch_async(dispatch_get_main_queue(), ^{
                       weakSelf.avatarView.image = compressedImage;
                    });

                }];
                
            });
        }];
    }
}

#pragma mark - UIImagePickerControllerDelegate

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<UIImagePickerControllerInfoKey,id> *)info {
    UIImage *img = info[UIImagePickerControllerEditedImage] ?: info[UIImagePickerControllerOriginalImage];
    if (img) {
        UIImage *compressed = [self kb_compressImage:img maxPixel:512 quality:0.85];
        self.avatarView.image = compressed;
        self.avatarJPEGData = UIImageJPEGRepresentation(compressed, 0.85);
    }
    [picker dismissViewControllerAnimated:YES completion:nil];
}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
    [picker dismissViewControllerAnimated:YES completion:nil];
}

/// 压缩图片：最长边不超过 maxPixel，输出近似 quality 的 JPEG
- (UIImage *)kb_compressImage:(UIImage *)image maxPixel:(CGFloat)maxPixel quality:(CGFloat)quality {
    if (!image) return nil;
    maxPixel = MAX(64, maxPixel);
    CGSize size = image.size;
    CGFloat maxSide = MAX(size.width, size.height);
    CGSize target = size;
    if (maxSide > maxPixel) {
        CGFloat scale = maxPixel / maxSide;
        target = CGSizeMake(floor(size.width * scale), floor(size.height * scale));
    }
    UIGraphicsBeginImageContextWithOptions(target, YES, 1.0);
    [image drawInRect:CGRectMake(0, 0, target.width, target.height)];
    UIImage *scaled = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    NSData *jpeg = UIImageJPEGRepresentation(scaled ?: image, MIN(MAX(quality, 0.2), 0.95));
    UIImage *result = [UIImage imageWithData:jpeg] ?: scaled ?: image;
    return result;
}
/// 按目标大小（KB）压缩图片：
/// 1. 先逐步降低 JPEG 质量；
/// 2. 如果质量已经降到下限仍然太大，再按比例缩小尺寸，并重复尝试。
- (nullable NSData *)kb_compressImage:(UIImage *)image targetKB:(NSUInteger)targetKB {
    if (!image || targetKB == 0) { return nil; }

    NSUInteger maxBytes = targetKB * 1024;

    // 初始质量参数
    CGFloat compression = 0.9f;
    CGFloat minCompression = 0.1f;   // 不建议再低了，太低会糊
    NSData *data = UIImageJPEGRepresentation(image, compression);
    if (!data) return nil;

    // 如果一开始就小于目标大小，直接返回
    if (data.length <= maxBytes) {
        return data;
    }

    // 1) 先通过降低质量来压缩
    while (data.length > maxBytes && compression > minCompression + 0.01f) {
        compression -= 0.1f;
        data = UIImageJPEGRepresentation(image, compression);
        if (!data) return nil;
    }

    if (data.length <= maxBytes) {
        return data;
    }

    // 2) 质量降到下限还是太大 -> 等比缩放尺寸
    UIImage *currentImage = image;

    // 防止死循环，限定最多缩放几次
    NSInteger maxResizeCount = 6;
    NSInteger resizeCount = 0;

    while (data.length > maxBytes && resizeCount < maxResizeCount) {
        resizeCount++;

        // 按面积比例来算缩放因子：新的面积约等于 (maxBytes / 当前字节数) * 原面积
        CGFloat ratio = (CGFloat)maxBytes / (CGFloat)data.length;
        // 为了更激进一点，可以乘个经验系数，比如 0.8
        ratio *= 0.8f;
        if (ratio <= 0.0f) {
            ratio = 0.5f; // 兜底，至少缩小一半
        }

        CGFloat scale = sqrt(ratio);
        if (scale >= 1.0f) {
            scale = 0.5f; // 理论上不会走到这里，兜底
        }

        CGSize newSize = CGSizeMake(currentImage.size.width * scale,
                                    currentImage.size.height * scale);
        if (newSize.width < 10 || newSize.height < 10) {
            // 太小就没意义了，直接 break，返回目前能做到的最小值
            break;
        }

        // 绘制缩小后的图片
        UIGraphicsBeginImageContextWithOptions(newSize, NO, currentImage.scale);
        [currentImage drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
        UIImage *resizedImage = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();

        if (!resizedImage) {
            break;
        }

        currentImage = resizedImage;

        // 每次尺寸缩小之后，再重新从稍高一点的质量开始压一轮
        compression = 0.9f;
        data = UIImageJPEGRepresentation(currentImage, compression);
        if (!data) return nil;

        // 再次在质量范围内往下压
        while (data.length > maxBytes && compression > minCompression + 0.01f) {
            compression -= 0.1f;
            data = UIImageJPEGRepresentation(currentImage, compression);
            if (!data) return nil;
        }
    }

    // 最终返回当前能做到的最小数据（可能略大于目标，但已经尽力）
    return data;
}


- (KBMyVM *)myVM{
    if (!_myVM) {
        _myVM = [[KBMyVM alloc] init];
    }
    return _myVM;
}

@end