//
//  KBKeyboardRowContainerBuilder.m
//  CustomKeyboard
//

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

@implementation KBKeyboardRowContainerBuilder

- (void)rebuildRowContainersForRows:(NSArray<KBKeyboardRowConfig *> *)rowConfigs
                        inContainer:(UIView *)container
                           rowViews:(NSMutableArray<UIView *> *)rowViews
                         rowSpacing:(CGFloat)rowSpacing
                           topInset:(CGFloat)topInset
                        bottomInset:(CGFloat)bottomInset {
    if (!container || !rowViews) { return; }

    for (UIView *row in rowViews) {
        [row removeFromSuperview];
    }
    [rowViews removeAllObjects];

    NSUInteger rowCount = rowConfigs.count;
    if (rowCount == 0) { return; }

    UIView *firstRow = nil;
    UIView *previousRow = nil;
    for (NSUInteger i = 0; i < rowCount; i++) {
        UIView *rowView = [UIView new];
        [container addSubview:rowView];
        [rowViews addObject:rowView];

        [rowView mas_makeConstraints:^(MASConstraintMaker *make) {
            if (previousRow) {
                make.top.equalTo(previousRow.mas_bottom).offset(rowSpacing);
            } else {
                make.top.equalTo(container.mas_top).offset(topInset);
            }
            make.left.right.equalTo(container);
            // 所有行等高，自动根据可用空间分配行高
            if (firstRow) {
                make.height.equalTo(firstRow);
            }
        }];

        // 最后一行锚定到底部
        if (i == rowCount - 1) {
            [rowView mas_makeConstraints:^(MASConstraintMaker *make) {
                make.bottom.equalTo(container.mas_bottom).offset(-bottomInset);
            }];
        }

        if (!firstRow) { firstRow = rowView; }
        previousRow = rowView;
    }
}

@end