duoshoubang/FirstLink/Compoments/详情模块/ViewModel/AllCommentVi...

//
//  AllCommentViewModel.m
//  FirstLink
//
//  Created by jack on 15/6/24.
//  Copyright (c) 2015年 FirstLink. All rights reserved.
//  所有评论

#import "AllCommentViewModel.h"

@implementation AllCommentViewModel
- (instancetype)init
{
    if (self = [super init]) {
        _dataArray = [NSMutableArray array];
        _totalCount = 0;
    }
    return self;
}
- (void)requestForInitialWithSuccess:(void (^)(MSGHeader *))success failure:(void (^)(MSGHeader *, NSError *))failure
{
    NSString *itemJsonString = [FLRequestHelper JSONStringWithKeys:@[@"item_id", @"seller_id", @"start_row", @"page_size"] values:@[self.itemID, self.sellerID, @"0", @"20"]];
    
    WeakSelf(weakSelf);
    [self requestCommonWithJsonString:itemJsonString success:^(MSGHeader *header, NSArray *array) {
        [weakSelf.dataArray removeAllObjects];
        if (array) [weakSelf.dataArray addObjectsFromArray:array];
        success(header);

    } failure:^(MSGHeader *header, NSError *error) {
        failure(header, error);
    }];
}
- (void)requestForMoreWithSuccess:(void (^)(MSGHeader *))success failure:(void (^)(MSGHeader *, NSError *))failure
{
    NSString *startRow = [NSString stringWithFormat:@"%lu", (unsigned long)self.dataArray.count];
    NSString *itemJsonString = [FLRequestHelper JSONStringWithKeys:@[@"item_id", @"seller_id", @"start_row", @"page_size"] values:@[self.itemID, self.sellerID, startRow, @"20"]];
    WeakSelf(weakSelf);
    
    [self requestCommonWithJsonString:itemJsonString success:^(MSGHeader *header, NSArray *array) {
        if (array) {
            [weakSelf.dataArray addObjectsFromArray:array];
            success(header);
        }
    } failure:^(MSGHeader *header, NSError *error) {
        failure(header, error);
    }];
}
- (void)requestCommonWithJsonString:(NSString *)jsonString success:(void (^)(MSGHeader *, NSArray *))success failure:(void (^)(MSGHeader *, NSError *))failure
{
    NSDictionary *dict = [self getCommonParaWithKey:@"item_comment_json" forValue:jsonString];
    NSString *urlString = [NSString stringWithFormat:@"%@/link-site/api/item_comment/find_item_comments.json", [[FKServerUtil sharedInstance] apiServer]];
    
    WeakSelf(weakSelf);
    [[FLDataCenter sharedDataCenter] POST:urlString parameters:dict success:^(MSGHeader *header, id responseObject) {
        if (header.code.intValue == RESPONSE_MSG_NORMAL) {
            NSArray *dataArray = [weakSelf parserDataWithDict:responseObject];
            success(header, dataArray);
        }
    } failure:^(MSGHeader *header, NSError *error) {
        failure(header, error);
    }];
}
- (NSArray *)parserDataWithDict:(NSDictionary *)dict
{
    NSMutableArray *arrayM = nil;
    if ([dict[@"data"][@"list"] isKindOfClass:[NSArray class]]) {
        NSArray *dataArray = dict[@"data"][@"list"];
        arrayM = [NSMutableArray arrayWithCapacity:dataArray.count];
        for (int i = 0; i < dataArray.count; i++) {
            if (![dataArray[i] isKindOfClass:[NSDictionary class]]) continue;
            CommentItem *item = [[CommentItem alloc]init];
            [item mts_setValuesForKeysWithDictionary:dataArray[i]];
            [arrayM addObject:item];
        }
    }
    if ([dict[@"data"][@"pager"] isKindOfClass:[NSDictionary class]]) {
        NSDictionary *dictionry = dict[@"data"][@"pager"];
        if ([dictionry[@"total"] isKindOfClass:[NSNumber class]]) {
            _totalCount = (NSInteger)[dictionry[@"total"] integerValue];
        }
    }
    return arrayM;
}
- (void)saveCommentText:(NSString *)text atRow:(NSInteger)row withSuccess:(void (^)(MSGHeader *))success failure:(void (^)(MSGHeader *, NSError *))failure
{
    if (text.length == 0 || text.length > 128) return;
    
    CommentItem *item = nil;
    if (self.defaultCommentItem) {
        item = self.defaultCommentItem;
    }else if (row < self.dataArray.count && row >= 0){
        item = self.dataArray[row];
    }
    if ([item.buyerID isKindOfClass:[NSString class]] && item.buyerID.length > 0) {
        NSString *itemJsonString = [self commentItemJsonForReplyBuyerID:item.buyerID text:text];
        NSDictionary *para = [self getCommonParaWithKey:@"item_comment_json" forValue:itemJsonString];
        NSString *urlString = [NSString stringWithFormat:@"%@/link-site/api/item_comment/create_item_comment.json", [[FKServerUtil sharedInstance] apiServer]];
        [[FLDataCenter sharedDataCenter] POST:urlString parameters:para success:^(MSGHeader *header, id responseObject) {
            if (header.code.intValue == RESPONSE_MSG_NORMAL) {
                success(header);
            }
        } failure:^(MSGHeader *header, NSError *error) {
            failure(header, error);
        }];
    }
}
- (void)removeCommentAtRow:(NSInteger)row withSuccess:(void (^)(MSGHeader *))success failure:(void (^)(MSGHeader *, NSError *))failure
{
    if (row > self.dataArray.count - 1) NSAssert(row < self.dataArray.count, @"comment row out array count");
    CommentItem *item = self.dataArray[row];
    
    if (item) {
        NSString *itemJsonString = [FLRequestHelper JSONStringWithKeys:@[@"id", @"item_id", @"seller_id"] values:@[item.commentID, item.itemID, item.sellerID]];
        NSDictionary *para = [self getCommonParaWithKey:@"item_comment_json" forValue:itemJsonString];
        NSString *urlString = [NSString stringWithFormat:@"%@/link-site/api/item_comment/remove_item_comment.json", [[FKServerUtil sharedInstance] apiServer]];
        
        [[FLDataCenter sharedDataCenter] POST:urlString parameters:para success:^(MSGHeader *header, id responseObject) {
            success(header);
        } failure:^(MSGHeader *header, NSError *error) {
            failure(header, error);
        }];
    }
}
// 是否是当前用户的评论
- (BOOL)isUserCommentAtRow:(NSInteger)row
{
    if (row > self.dataArray.count - 1) NSAssert(row < self.dataArray.count, @"comment row out array count");
    CommentItem *item = self.dataArray[row];
    if ([item.buyerID isEqualToString:[FKUserManager sharedManager].user.userID]) return YES;
    return NO;
}
- (NSString *)getCommentPlaceHolderWithRow:(NSInteger)row{
    if (self.defaultCommentItem) {
        return [NSString stringWithFormat:@"回复 %@", self.defaultCommentItem.buyerNickName];
    }
    if (row >= 0 && row < self.dataArray.count && ![self isUserCommentAtRow:row]) {
        CommentItem *item = self.dataArray[row];
        return [NSString stringWithFormat:@"回复 %@", item.buyerNickName];
    }
    return @"";
}
- (NSString *)commentItemJsonForReplyBuyerID:(NSString *)ReplyBuyerID text:(NSString *)text
{
    NSString *itemJsonString = [FLRequestHelper JSONStringWithKeys:@[@"item_id", @"seller_id", @"reply_to_user_id",@"content"] values:@[self.itemID, self.sellerID, ReplyBuyerID, text]];
    return itemJsonString;
}
- (NSDictionary *)getCommonParaWithKey:(NSString *)key forValue:(id)value
{
    NSMutableDictionary *para = [NSMutableDictionary dictionary];
    [para setValue:value forKey:key];
    [para addEntriesFromDictionary:[FLRequestHelper commonParamater]];
    return para;
}
@end