//
//  FKProductAdviseController.m
//  FirstLink
//
//  Created by ascii on 16/1/20.
//  Copyright © 2016年 FirstLink. All rights reserved.
//

#import "FKProductAdviseController.h"
#import "FKProDetailController.h"

#import "FKProductAdviseViewModel.h"
#import "FKProductAdviseRequest.h"
#import "FKProductAdviseReform.h"
#import "FKProductAdviseItem.h"

#import "FKProductQuestionCell.h"
#import "FKProductAnswerCell.h"

#import "FKProductAdviseEmptyView.h"
#import "PdDetailKeyboardInputView.h"

#import <IQKeyboardManager.h>

static NSString * const ProductQuestionCellIdentifier = @"ProductQuestionCellIdentifier";
static NSString * const ProductAnswerCellIdentifier   = @"ProductAnswerCellIdentifier";

@interface FKProductAdviseController ()
<UITableViewDataSource, UITableViewDelegate, FLNetworkDelegate>

@property (nonatomic, strong) UITableView               *tableView;
@property (nonatomic, strong) FKProductAdviseEmptyView  *emptyView;
@property (nonatomic, strong) UIButton                  *questionButton;
@property (nonatomic, strong) PdDetailKeyboardInputView *boardInputView;
@property (nonatomic, strong) UIView                    *coverView;
@property (nonatomic, strong) FKProductAdviseViewModel  *viewModel;

@end

@implementation FKProductAdviseController

- (instancetype)initWithItemID:(NSString *)itemID {
    self = [super init];
    if (self) {
        self.viewModel.itemID = itemID;
    }
    return self;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    self.view.backgroundColor = UIColorFromRGB(0xffffff);
    [self.navigationController setNavigationBarHidden:NO animated:YES];
    
    if (self.openURLPara) {
        self.viewModel.itemID = self.openURLPara[@"id"];
    }
    
    [self addAllSubviews];
    [self configNotifications];
    
    [self requestNewData];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    
    [IQKeyboardManager sharedManager].enable = FALSE;
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
    
    [IQKeyboardManager sharedManager].enable = TRUE;
}

- (void)dealloc {
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    
    self.navigationItem.title = @"购买咨询";
    [self.navigationController setNavigationBarHidden:NO animated:YES];
}

#pragma mark - Request

- (void)requestNewData {
    [self.hudView show:YES];
    [FKProductAdviseRequest requestItems:FKProductAdviseRequestNew
                                  itemID:self.viewModel.itemID
                                startRow:[FLStringHelper convertNumberToString:0]
                                pageSize:[FLStringHelper convertNumberToString:PAGE_RECORD_COUNT]
                               deleagate:self];
}

- (void)refreshControl:(FKRefreshControl *)refreshControl didEngageRefreshDirection:(RefreshDirection)direction {
    [self.hudView show:YES];
    if (direction == RefreshDirectionTop) {
        [self requestNewData];
        self.refreshControl.bottomEnabled = YES;
    } else if (direction == RefreshDirectionBottom) {
        [FKProductAdviseRequest requestItems:FKProductAdviseRequestNextPage
                                      itemID:self.viewModel.itemID
                                    startRow:[FLStringHelper convertNumberToString:(int)self.viewModel.adviseArray.count]
                                    pageSize:[FLStringHelper convertNumberToString:PAGE_RECORD_COUNT]
                                   deleagate:self];
    }
}

#pragma mark - Response

- (void)networkDidSuccessResponse:(NSDictionary *)response identify:(int)identify header:(MSGHeader *)header {
    [self.hudView hide:YES];
    [self finishLoadingData];
    
    if ([header.code intValue] == RESPONSE_MSG_NORMAL) {
        if (identify == FKProductAdviseRequestNew) {
            self.viewModel.adviseArray = [FKProductAdviseReform parseItems:response];
        }
        if (identify == FKProductAdviseRequestNextPage) {
            [self.viewModel.adviseArray addObjectsFromArray:[FKProductAdviseReform parseItems:response]];
        }
        if (identify == FKProductAdviseSubmitQuestion) {
            [self.tableView setContentOffset:CGPointZero animated:YES];
            [self requestNewData];
        }
        
        self.emptyView.hidden = self.viewModel.adviseArray.count;
        
        if (self.viewModel.adviseArray.count == 0
            || self.viewModel.adviseArray.count % PAGE_RECORD_COUNT > 0) {
            self.refreshControl.bottomEnabled = FALSE;
        }
        
        [self.tableView reloadData];
    } else {
        [FLProgressHUDHelper showText:header.msg inView:self.view];
    }
}

- (void)networkDidReceiveError:(NSError *)error identify:(int)identify header:(MSGHeader *)header {
    [self.hudView hide:YES];
    [self finishLoadingData];
    [FLProgressHUDHelper showText:header.msg inView:self.view];
}

#pragma mark - UITableViewDataSource, UITableViewDelegate

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

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    FKProductAdviseItem *item = [self.viewModel itemAtIndex:indexPath.row];
    if (item.isExistAnswer) {
        return [FKProductAnswerCell heightWith:item.aContent question:item.qContent];
    }
    return [FKProductQuestionCell height:item.qContent];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    FKProductAdviseItem *item = [self.viewModel itemAtIndex:indexPath.row];
    
    FKProductQuestionCell *questionCell;
    if (item.isExistAnswer) {
        FKProductAnswerCell *answerCell = [tableView dequeueReusableCellWithIdentifier:ProductAnswerCellIdentifier];
        answerCell.aContentLabel.text = item.aContent;
        
        questionCell = answerCell;
    } else {
        questionCell = [tableView dequeueReusableCellWithIdentifier:ProductQuestionCellIdentifier];
    }
    questionCell.qContentLabel.text = item.qContent;
    questionCell.qNameLabel.text = item.qUsername;
    questionCell.qTimeLabel.text = [item.qTime stringByReplacingOccurrencesOfString:@"T"
                                                                         withString:@" "];
    questionCell.selectionStyle = UITableViewCellSelectionStyleNone;
    
    return questionCell;
}

#pragma mark -

- (void)keyboardWillChange:(NSNotification *)notification {
    if ([notification.name isEqualToString:UIKeyboardWillShowNotification]) {
        [self showBoardViewWithNotification:notification];
    } else if ([notification.name isEqualToString:UIKeyboardWillHideNotification]){
        [self dismissBoardViewWithNotification:notification];
    } else if ([notification.name isEqualToString:UIKeyboardDidHideNotification]){
        self.boardInputView.textView.text = nil;
    }
}

- (void)showBoardViewWithNotification:(NSNotification *)notification {
    CGFloat duration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
    CGRect endRect = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    UIViewAnimationOptions curve = (UIViewAnimationOptions)[notification.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
    
    self.coverView.alpha = 0;
    WeakSelf(weakSelf);
    [UIView animateWithDuration:duration delay:0 options:curve animations:^{
        weakSelf.boardInputView.frame = CGRectMake(endRect.origin.x
                                                   , endRect.origin.y - 50 - 64
                                                   , CGRectGetWidth(self.boardInputView.bounds)
                                                   , CGRectGetHeight(self.boardInputView.bounds));
        weakSelf.coverView.alpha = 1.0f;
    } completion:^(BOOL finished) {
        
    }];
}

- (void)dismissBoardViewWithNotification:(NSNotification *)notification {
    CGFloat duration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
    CGRect endRect = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    UIViewAnimationOptions curve = (UIViewAnimationOptions)[notification.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
    
    self.coverView.alpha = 1;
    WeakSelf(weakSelf);
    [UIView animateWithDuration:duration delay:0 options:curve animations:^{
        weakSelf.coverView.alpha = 0;
        weakSelf.boardInputView.frame = CGRectMake(0
                                                   , endRect.origin.y
                                                   , CGRectGetWidth(self.boardInputView.bounds)
                                                   , CGRectGetHeight(self.boardInputView.bounds));
    } completion:^(BOOL finished) {
        
    }];
}

#pragma mark - Action

- (IBAction)showSubmitQuestionView:(id)sender {
    if (![FKUserManager isUserLogin]) {
        [self showLoginActionMenu];
    } else {
        [self.boardInputView.textView becomeFirstResponder];
    }
}

- (void)clickQuestionCoverView:(id)sender {
    [self.boardInputView.textView resignFirstResponder];
    self.boardInputView.textView.text = nil;
}

- (IBAction)clickSendQuestionButton:(id)sender {
    
    NSString *content = [self.boardInputView.textView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
    if (content.length > 0) {
        [FKProductAdviseRequest requestSubmitQuestion:FKProductAdviseSubmitQuestion
                                               itemID:self.viewModel.itemID
                                              content:content
                                            deleagate:self];
        
        [self.boardInputView.textView resignFirstResponder];
        self.boardInputView.textView.text = nil;
    }
}

#pragma mark - Method

- (void)configNotifications {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChange:) name:UIKeyboardWillShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChange:) name:UIKeyboardDidShowNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChange:) name:UIKeyboardWillHideNotification object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChange:) name:UIKeyboardDidHideNotification object:nil];
}

#pragma mark - Layout

- (void)addAllSubviews {
    [self.view addSubview:self.questionButton];
    [self.questionButton mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.bottom.equalTo(self.view);
        make.height.mas_equalTo(48);
    }];
    
    UIView *line = [UIView new];
    line.backgroundColor = UIColorFromRGB(0xcccccc);
    [self.view addSubview:line];
    [line mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.equalTo(self.view);
        make.bottom.equalTo(self.questionButton.mas_top);
        make.height.mas_equalTo(0.5);
    }];
    
    [self.view addSubview:self.tableView];
    [self.tableView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.top.equalTo(self.view);
        make.bottom.equalTo(line.mas_top);
    }];
    
    [self.view addSubview:self.emptyView];
    [self.emptyView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.right.top.equalTo(self.view);
        make.bottom.equalTo(line.mas_top);
    }];
    
    [self.view addSubview:self.coverView];
    [self.coverView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.edges.insets(UIEdgeInsetsZero);
    }];
    
    [self.view addSubview:self.boardInputView];
    self.boardInputView.frame = CGRectMake(0, UISCREENHEIGH, UISCREENWIDTH, 50);
}

#pragma mark - Property

- (UITableView *)tableView {
    if (!_tableView) {
        _tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
        _tableView.dataSource = self;
        _tableView.delegate = self;
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        _tableView.allowsMultipleSelection = NO;
        _tableView.backgroundColor = UIColorFromRGB(0xf4f5f7);
        
        if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
            _tableView.separatorInset = UIEdgeInsetsMake(0, 0, 0, 0);
        }
        
        [self initRefreshControlWithTableView:_tableView];
        
        [_tableView registerClass:[FKProductQuestionCell class] forCellReuseIdentifier:ProductQuestionCellIdentifier];
        [_tableView registerClass:[FKProductAnswerCell class] forCellReuseIdentifier:ProductAnswerCellIdentifier];
    }
    return _tableView;
}

- (FKProductAdviseEmptyView *)emptyView {
    if (!_emptyView) {
        _emptyView = [FKProductAdviseEmptyView new];
        _emptyView.hidden = YES;
    }
    return _emptyView;
}

- (UIButton *)questionButton {
    if (!_questionButton) {
        _questionButton = [UIButton buttonWithType:UIButtonTypeCustom];
        
        [_questionButton.titleLabel setFont:[UIFont systemFontOfSize:15]];
        [_questionButton setTitle:@"向帮主提问" forState:UIControlStateNormal];
        [_questionButton setTitleColor:UIColorFromRGB(0x3e4246) forState:UIControlStateNormal];
        [_questionButton setImage:[UIImage imageNamed:@"advise_submit_icon"] forState:UIControlStateNormal];
        
        _questionButton.imageEdgeInsets = UIEdgeInsetsMake(0, -8, 0, 0);
        
        [_questionButton addTarget:self action:@selector(showSubmitQuestionView:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _questionButton;
}

- (PdDetailKeyboardInputView *)boardInputView {
    if (!_boardInputView) {
        _boardInputView = [[PdDetailKeyboardInputView alloc]init];
        _boardInputView.bounds = CGRectMake(0, 0, UISCREENWIDTH, 50);
        _boardInputView.placeHolder = @"请输入提问内容...";
        [_boardInputView.confirmButton addTarget:self action:@selector(clickSendQuestionButton:) forControlEvents:UIControlEventTouchUpInside];
    }
    return _boardInputView;
}

- (UIView *)coverView {
    if (!_coverView) {
        _coverView = [UIView new];
        _coverView.alpha = 0;
        _coverView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.15f];
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(clickQuestionCoverView:)];
        [_coverView addGestureRecognizer:tap];
        
    }
    return _coverView;
}

- (FKProductAdviseViewModel *)viewModel {
    if (!_viewModel) {
        _viewModel = [FKProductAdviseViewModel new];
    }
    return _viewModel;
}

@end