//
//  MTGridSelectView.h
//  MTGridSelectDemo
//
//  Created by mambaxie on 2019/1/19.
//  Copyright © 2019年 tencent. All rights reserved.
//

#import <UIKit/UIKit.h>
#import "MTGridSelectConfig.h"

NS_ASSUME_NONNULL_BEGIN

typedef NS_ENUM(NSUInteger, MTGridItemState) {
    MTGridItemStateNormal,
    MTGridItemStateSelected,
};


/**
 创建itemContentView完成后回调

 @return 返回自定itemView 会被添加到itemContentView中
 */
typedef UIView *(^MTGridDidSetupItemContentViewBlock)(UIView *itemContentView, id itemModel);
/// changeByInner : 内部触发
typedef void(^MTGridItemStateChangedBlock)(UIView *itemView, id itemModel, MTGridItemState state, BOOL changeByInner);

/// 多选限制回调
typedef void(^MTGridMultipleSelectLimitBlock)(void);

@interface MTGridSelectView : UIView

@property (nonatomic, strong) UICollectionView *collectionView;
@property (nonatomic, copy) NSArray<id> *originalModels;
/**
 快速创建栅格选择view

 @param itemModels item模型数组
 @param setupConfigBlock 初始化配置
 @param didSetupItemContentViewBlock 创建itemContentView完成后调用
 @param itemStateChangedBlock item状态改变后调用
 @param selectValueChangedBlock 选中值改变后调用
 @return 栅格选择view
 */
+ (instancetype)gridSelectViewWithItemModels:(NSArray *)itemModels
                                 setupConfig:(void(^)(MTGridSelectConfig *config))setupConfigBlock
                     didSetupItemContentView:(MTGridDidSetupItemContentViewBlock)didSetupItemContentViewBlock
                            itemStateChanged:(MTGridItemStateChangedBlock)itemStateChangedBlock
                          selectValueChanged:(void(^)(NSArray *selectedModels))selectValueChangedBlock;

/// 多选限制回调
@property (nonatomic, copy) MTGridMultipleSelectLimitBlock limitBlock;

/// 选中的item
@property (nonatomic, strong, readonly) NSArray<id> *selectedItems;

///
@property (nonatomic, assign, readonly) NSInteger itemTotalCount;


/// 选中指定下标
- (void)selectItemAtIndex:(NSInteger)index;
/// 选中多个指定下标
- (void)selectItemAtIndexs:(NSArray <NSNumber *>*)indexs;
/// 全选
- (void)selectAllItem;
/// 全不选
- (void)deselectAllItem;

/// 改变指定下标状态
- (void)changeItemStateAtIndex:(NSInteger)index state:(MTGridItemState)state;
/// 改变多个下标状态
- (void)changeItemStateAtIndexs:(NSArray <NSNumber *>*)index state:(MTGridItemState)state;

/// 刷新数据
- (void)reloadDataWithItemModels:(NSArray *)itemModels;

@end

NS_ASSUME_NONNULL_END