yinmeng-ios/xplan-ios/Main/Message/View/Session/MessageCell.m

//
//  MessageCell.m
//  xplan-ios
//
//  Created by zu on 2021/11/28.
//

#import "MessageCell.h"
#import "MessageContentProtocol.h"
#import "MessageContentText.h"
#import "MessageContentImage.h"

#import "NetImageView.h"
#import "ThemeColor.h"

#import "XPMacro.h"
#import <Masonry/Masonry.h>

@interface MessageCell()

@property (nonatomic, assign) NIMMessageType messageType;

/**
 左侧头像（私聊对象）
 */
@property (nonatomic, strong) NetImageView * leftAvatar;

/**
 右侧头像（自己）
 */
@property (nonatomic, strong) NetImageView * rightAvatar;

/**
 消息背景
 */
@property (nonatomic, strong) UIView * messageBackground;
@property (nonatomic, strong) MASConstraint * messageBackgroundLeft;
@property (nonatomic, strong) MASConstraint * messageBackgroundRight;

/**
 消息内容实体
 */
@property (nonatomic, strong) UIView<MessageContentProtocol> * messageContent;

@end

@implementation MessageCell

+ (CGFloat)measureHeight:(NIMMessage *)message {
    CGFloat minHeight = AVATAR_SIZE + AVATAR_MARGIN_H * 2;
    if (!message) {
        return minHeight;
    }
    
    CGFloat mesuredHeight = 0;
    switch (message.messageType) {
        case NIMMessageTypeText:
        case NIMMessageTypeTip:
            mesuredHeight = [MessageContentText measureHeight:message];
            break;
        case NIMMessageTypeImage:
            mesuredHeight = [MessageContentImage measureHeight:message];
            break;
        default:
            break;
            
    }
    return MAX(minHeight, mesuredHeight);
}

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        self.selectionStyle = UITableViewCellSelectionStyleNone;
        [self initViews];
        [self initLayout];
    }
    return self;
}

- (void)initViews {
    self.backgroundColor = UIColor.clearColor;
    self.leftAvatar.backgroundColor = UIColor.redColor;
    self.rightAvatar.backgroundColor = UIColor.blueColor;
    [self.contentView addSubview:self.leftAvatar];
    [self.contentView addSubview:self.rightAvatar];
    [self.contentView addSubview:self.messageBackground];
}

- (void)initLayout {
    [self.leftAvatar mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.top.mas_equalTo(self).offset(15);
        make.width.height.mas_equalTo(45);
    }];
    
    [self.rightAvatar mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_equalTo(self).offset(15);
        make.right.mas_equalTo(self).offset(-15);
        make.width.height.mas_equalTo(45);
    }];
    
    [self.messageBackground mas_makeConstraints:^(MASConstraintMaker *make) {
        self.messageBackgroundLeft = make.left.mas_equalTo(self.leftAvatar.mas_right).offset(15);
        self.messageBackgroundRight = make.right.mas_equalTo(self.rightAvatar.mas_left).offset(-15);
        make.top.mas_equalTo(self).offset(20);
    }];
}

- (void)renderWithMessage:(NIMMessage *)message {
    NSString * avatarUrl = [[NIMSDK sharedSDK].userManager userInfo:message.from].userInfo.avatarUrl;
    avatarUrl = [avatarUrl stringByReplacingOccurrencesOfString:@"https" withString:@"http"];
    BOOL isSelf = [[NIMSDK sharedSDK].loginManager.currentAccount isEqualToString:message.from];
    if (isSelf) {
        self.leftAvatar.hidden = YES;
        self.rightAvatar.hidden = NO;
        [self.messageBackgroundLeft uninstall];
        [self.messageBackgroundRight install];
        self.rightAvatar.imageUrl = avatarUrl;
    } else {
        self.leftAvatar.hidden = NO;
        self.rightAvatar.hidden = YES;
        [self.messageBackgroundLeft install];
        [self.messageBackgroundRight uninstall];
        self.leftAvatar.imageUrl = avatarUrl;
    }
    
    if (self.messageType != message.messageType || !self.messageContent) {
        if (self.messageContent) {
            [self.messageContent removeFromSuperview];
        }
        switch (message.messageType) {
            case NIMMessageTypeText:
            case NIMMessageTypeTip:
                self.messageContent = [[MessageContentText alloc] init];
                break;
                
            case NIMMessageTypeImage:
                self.messageContent = [[MessageContentImage alloc] init];
                break;
                
            default:
                self.messageContent = [[MessageContentText alloc] init];
                break;
        }
        self.messageType = message.messageType;
        [self.messageBackground addSubview:self.messageContent];
        [self.messageContent mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.top.right.bottom.mas_equalTo(self.messageBackground);
        }];
    }
    
    [self.messageContent render:message];
}

- (NetImageView *)leftAvatar {
    if (!_leftAvatar) {
        NetImageConfig * config = [[NetImageConfig alloc] init];
        config.placeHolder = [UIImageConstant defaultAvatarPlaceholder];
        config.radius = MAXFLOAT;
        config.imageType = ImageTypeUserIcon;
        _leftAvatar = [[NetImageView alloc] initWithConfig:config];
        _leftAvatar.layer.masksToBounds = YES;
        _leftAvatar.layer.cornerRadius = 45.f / 2;
        _leftAvatar.hidden = YES;
    }
    return _leftAvatar;
}

- (NetImageView *)rightAvatar {
    if (!_rightAvatar) {
        NetImageConfig * config = [[NetImageConfig alloc] init];
        config.placeHolder = [UIImageConstant defaultAvatarPlaceholder];
        config.radius = MAXFLOAT;
        config.imageType = ImageTypeUserIcon;
        _rightAvatar = [[NetImageView alloc] initWithConfig:config];
        _rightAvatar.layer.masksToBounds = YES;
        _rightAvatar.layer.cornerRadius = 45.f / 2;
        _rightAvatar.hidden = YES;
    }
    return _rightAvatar;
}

- (UIView *)messageBackground {
    if (!_messageBackground) {
        _messageBackground = [[UIView alloc]init];
        _messageBackground.backgroundColor = ThemeColor.appCellBackgroundColor;
        _messageBackground.layer.masksToBounds = YES;
        _messageBackground.layer.cornerRadius = 8.f;
    }
    return _messageBackground;
}

@end