//
// Copyright (c) 2015 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

#import "PostDataSource.h"

@import Firebase;

@implementation PostDataSource

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
 return YES;
}

- (void)tableView:(UITableView *)tableView
commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath {
 if (editingStyle == UITableViewCellEditingStyleDelete) {
 [[self snapshotAtIndex:indexPath.row].ref removeValue];
 }
}

- (NSInteger)tableView:(UITableView *)tableView
 numberOfRowsInSection:(NSInteger)section {
 if (self.count != 0) {
 tableView.separatorStyle = UITableViewCellSeparatorStyleSingleLine;
 tableView.backgroundView = nil;
 }
 return self.count;
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 UILabel *noDataLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, tableView.bounds.size.width, tableView.bounds.size.height)];
 noDataLabel.text = @"No posts yet - why not add one?";
 noDataLabel.textColor = [UIColor blackColor];
 noDataLabel.textAlignment = NSTextAlignmentCenter;
 tableView.backgroundView = noDataLabel;
 tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
 return 1;
}

@end