//
//  CustomerViewController.m
//  FirstLink
//
//  Created by ascii on 15/6/8.
//  Copyright (c) 2015年 FirstLink. All rights reserved.
//

#import "CustomerListController.h"
#import "FKMessageManager.h"
#import "UIImageView+FLAddition.h"

@interface CustomerListController ()
<UITableViewDataSource, UITableViewDelegate, EMChatManagerDelegate>

@end

@implementation CustomerListController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib.
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    
    self.navigationItem.title = @"客服消息";
    
    [self.navigationController.tabBarController.tabBar setHidden:YES];
    [self.navigationController setNavigationBarHidden:NO animated:YES];
    [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
    
    [self configTableViewFrame];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    
    [[FKMessageManager sharedInstance] addEaseMobDelegate:self
                                             observerType:FKEaseMobObserverTypeService];
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    [[FKMessageManager sharedInstance] removeEaseMobDelegate:self
                                                observerType:FKEaseMobObserverTypeService];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

#pragma mark -

- (NSMutableArray *)loadDataSource {
    WeakSelf(weakSelf);
    __block NSMutableArray *customerConversations = [NSMutableArray array];
    NSArray *conversations = [[EMClient sharedClient].chatManager loadAllConversationsFromDB];
    [conversations enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        EMConversation *con = (EMConversation*)obj;
        if (con.conversationId.integerValue >= MinCustomerConversationID
            && con.conversationId.integerValue <= MaxCustomerConversationID) {
            [customerConversations addObject:obj];
        }
    }];
    
    NSArray *sorteConversations = [customerConversations sortedArrayUsingComparator:
                                   ^(EMConversation *obj1, EMConversation* obj2){
                                       EMMessage *message1 = [weakSelf realLastMessage:obj1];
                                       EMMessage *message2 = [weakSelf realLastMessage:obj2];
                                       
                                       if (message1.timestamp > message2.timestamp) {
                                           return (NSComparisonResult)NSOrderedAscending;
                                       } else {
                                           return (NSComparisonResult)NSOrderedDescending;
                                       }
                      }];
    
    [self.statusView removeFromSuperview];
    if (sorteConversations.count == 0) {
        [weakSelf showStatusTipInView:self.view
                                image:[UIImage imageNamed:@"StatusNoMessageIcon"]
                                title:NoMessageTip];
    }
    
    return [NSMutableArray arrayWithArray:sorteConversations];
}

#pragma mark - ChatManager Delegate

- (void)messagesDidReceive:(NSArray *)aMessages {
    [self refreshDataSource];
}

#pragma mark - TableView Delegate

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.dataSource.count;
}

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
    return 64.0;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    CustomerListCell *cell = [tableView dequeueReusableCellWithIdentifier:CustomerListCellIndetifier];
    if (indexPath.row < self.dataSource.count) {
        EMConversation *conversation = self.dataSource[indexPath.row];
        [self setHeadView:cell userID:conversation.conversationId];
        
        cell.nickLabel.text = self.nicknameAndHearurlDict[conversation.conversationId][@"nickname"];
        cell.messageLabel.text = [self subTitleMessageByConversation:conversation];
        cell.timeLabel.text = [self lastMessageTimeByConversation:conversation];
        
        NSInteger unreadCount = conversation.unreadMessagesCount;
        if (unreadCount <= 0) {
            cell.unreadLabel.hidden = YES;
        } else {
            cell.unreadLabel.hidden = NO;
            cell.unreadLabel.text = [NSString stringWithFormat:@"%lu", unreadCount];
        }
    }
    
    return cell;
}

- (void)setHeadView:(CustomerListCell *)cell userID:(NSString*)userID {
    [cell.headView setImageWithURL:self.nicknameAndHearurlDict[userID][@"headURL"]
                  placeholderImage:nil
                             width:HEAD_PHOTO_LENGTH_35
                            height:HEAD_PHOTO_LENGTH_35];
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    if (indexPath.row < self.dataSource.count) {
        EMConversation *conversation = self.dataSource[indexPath.row];
        
        BOOL isGroup = (conversation.type == EMConversationTypeGroupChat);
        ChatViewController *chatController = [[ChatViewController alloc] initWithChatter:conversation.conversationId
                                                                                 isGroup:isGroup];
        chatController.naviTitle = conversation.conversationId;
        
        if ([[self.nicknameAndHearurlDict allKeys] containsObject:conversation.conversationId]) {
            chatController.naviTitle = self.nicknameAndHearurlDict[conversation.conversationId][@"nickname"];
            chatController.receiverHeadURL = self.nicknameAndHearurlDict[conversation.conversationId][@"headURL"];
            chatController.myNickname = [FKUserManager sharedManager].user.nickName;
        }
        
        [conversation markAllMessagesAsRead:nil];
        chatController.hidesBottomBarWhenPushed = YES;
        [self setupUnreadMessageCount];
        [self.navigationController pushViewController:chatController animated:YES];
    }
}

#pragma mark -  Method

- (void)configTableViewFrame {
    self.tableView.frame = CGRectMake(0, 0, UISCREENWIDTH, CGRectGetHeight(self.view.frame));
}

@end