//
//  TableViewController.m
//  FMC Planner 2
//
//  Created by Kilian Hofmann on 27.03.16.
//  Copyright © 2016 Kilian Hofmann. All rights reserved.
//

#import "TableViewController.h"

@implementation TableViewController

DropboxV2ObjC *dbClient = nil;

#pragma mark - View management and navigation

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation
    // bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
    self.tableView.separatorInset = UIEdgeInsetsMake(0, 0, 0, 0);
    _markList = [[NSMutableArray alloc] init];
    dbClient =
        ((AppDelegate *)[UIApplication sharedApplication].delegate).dbClient;

    if ([self.title isEqualToString:@"Manage"] ||
        [self.title isEqualToString:@"Upload"]) {
        NSArray *temp = [[NSFileManager defaultManager]
            contentsOfDirectoryAtPath:[SharedDeclerations
                                          savePathForFile:@"SAVES"]
                                error:nil];

        _dataSource = [[temp
            filteredArrayUsingPredicate:
                [NSPredicate predicateWithFormat:@"NOT (SELF BEGINSWITH %@)",
                                                 @"."]] mutableCopy];
    }
    if ([self.title isEqualToString:@"Download"]) {
        [dbClient
            contentsOfPath:@"SAVES"
                completion:^(NSArray *data) {
                    NSMutableArray *temp = [[NSMutableArray alloc] init];

                    for (NSDictionary *dict in data) {
                        [temp addObject:[dict valueForKey:@"name"]];
                    }

                    _dataSource = [[temp
                        filteredArrayUsingPredicate:
                            [NSPredicate
                                predicateWithFormat:@"NOT (SELF BEGINSWITH %@)",
                                                    @"."]] mutableCopy];
                    [[NSOperationQueue mainQueue] addOperationWithBlock:^{
                        [self.tableView reloadData];
                    }];
                }
                 presenter:self];
    }
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

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

- (UITableViewCell *)tableView:(UITableView *)tableView
         cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    SWTableViewCell *cell = (SWTableViewCell *)[tableView
        dequeueReusableCellWithIdentifier:@"Cell"];

    if ([self.title isEqualToString:@"Manage"] ||
        [self.title isEqualToString:@"Upload"]) {
        NSDictionary *data = [[NSDictionary alloc]
            initWithContentsOfFile:
                [SharedDeclerations
                    savePathForFile:[@"SAVES/"
                                        stringByAppendingString:
                                            _dataSource[indexPath.row]]]];
        cell.textLabel.text = [data valueForKey:@"MENU@LSKR1"];
    }
    if ([self.title isEqualToString:@"Download"]) {
        cell.textLabel.text = _dataSource[indexPath.row];
    }
    if ([self.title isEqualToString:@"Manage"]) {
        cell.rightUtilityButtons = [self rightButtons];
    }
    else {
        cell.leftUtilityButtons = [self leftButtonsNormal];
    }
    cell.delegate = self;
    return cell;
}

#pragma mark - Table view cell selection action

- (void)tableView:(UITableView *)tableView
    didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    if ([self.title isEqualToString:@"Manage"]) {
        [self dismissViewControllerAnimated:YES
                                 completion:^(void) {
                                     [_main loadSave:[tableView
                                                         cellForRowAtIndexPath:
                                                             indexPath]
                                                         .textLabel.text];
                                 }];
    }
    else {
        [tableView deselectRowAtIndexPath:indexPath animated:YES];
    }
}

#pragma mark - Helper methods

/**
 * AKA Delete button
 */
- (NSArray *)rightButtons
{
    NSMutableArray *array = [[NSMutableArray alloc] init];

    [array sw_addUtilityButtonWithColor:[UIColor colorWithRed:1.0f
                                                        green:0.231f
                                                         blue:0.188
                                                        alpha:1.0f]
                                  title:@"Delete"];
    return array;
}

/**
 * AKA Mark button white
 */
- (NSArray *)leftButtonsNormal
{
    NSMutableArray *array = [[NSMutableArray alloc] init];

    [array sw_addUtilityButtonWithColor:[UIColor colorWithRed:0.78f
                                                        green:0.78f
                                                         blue:0.8f
                                                        alpha:1.0]
                                  title:@"Mark"];
    return array;
}

/**
 * AKA Mark button green
 */
- (NSArray *)leftButtonsSelected
{
    NSMutableArray *array = [[NSMutableArray alloc] init];

    [array sw_addUtilityButtonWithColor:[UIColor colorWithRed:0.07
                                                        green:0.75f
                                                         blue:0.16f
                                                        alpha:1.0]
                                  title:@"Unmark"];
    return array;
}

- (void)finishSelection
{
    NSOperationQueue *queue = [[NSOperationQueue alloc] init];
    if ([self.title isEqualToString:@"Download"]) {
        _sm.dbDownload.enabled = NO;
        _sm.dbDownload.alpha = 0.5;
        _main.downloadActive = true;
        [queue addOperationWithBlock:^{
            [dbClient downloadFromDropbox:_markList
                                presenter:self
                               completion:^{
                                   [[NSOperationQueue mainQueue]
                                       addOperationWithBlock:^{
                                           _sm.dbDownload.enabled = YES;
                                           _sm.dbDownload.alpha = 1.0;
                                           _main.downloadActive = false;
                                           [self.view setNeedsDisplay];
                                       }];
                               }];
        }];
        [self.navigationController popViewControllerAnimated:YES];
    }
    if ([self.title isEqualToString:@"Upload"]) {
        _sm.dbUpload.enabled = NO;
        _sm.dbUpload.alpha = 0.5;
        _main.uploadActive = true;
        [queue addOperationWithBlock:^{
            [dbClient
                uploadToDropbox:_markList
                      presenter:self
                     completion:^{
                         [[NSOperationQueue mainQueue] addOperationWithBlock:^{
                             _sm.dbUpload.enabled = YES;
                             _sm.dbUpload.alpha = 1.0;
                             _main.uploadActive = false;
                             [self.view setNeedsDisplay];
                         }];
                     }];
        }];
        [self.navigationController popViewControllerAnimated:YES];
    }
}

#pragma mark - SWTableViewDelegate

- (void)swipeableTableViewCell:(SWTableViewCell *)cell
    didTriggerLeftUtilityButtonWithIndex:(NSInteger)index
{
    NSString *file = @"";
    if ([self.title isEqualToString:@"Download"] ||
        [self.title isEqualToString:@"Upload"]) {
        file = @"SAVES/";
    }
    else if (false) {
        // TODO: Import of old saves and export of PMDG
    }
    if ([((UIButton *)cell.leftUtilityButtons[index])
                .titleLabel.text isEqualToString:@"Mark"]) {
        [_markList
            addObject:[file stringByAppendingString:cell.textLabel.text]];
        cell.leftUtilityButtons = [self leftButtonsSelected];
        cell.accessoryType = UITableViewCellAccessoryCheckmark;
        [cell hideUtilityButtonsAnimated:YES];
    }
    else if ([((UIButton *)cell.leftUtilityButtons[index])
                     .titleLabel.text isEqualToString:@"Unmark"]) {
        [_markList
            removeObject:[file stringByAppendingString:cell.textLabel.text]];
        cell.leftUtilityButtons = [self leftButtonsNormal];
        cell.accessoryType = UITableViewCellAccessoryNone;
        [cell hideUtilityButtonsAnimated:YES];
    }
    if (_markList.count > 0 && self.navigationItem.rightBarButtonItem == nil) {
        self.navigationItem.rightBarButtonItem =
            [[UIBarButtonItem alloc] initWithTitle:@"Ok"
                                             style:UIBarButtonItemStyleDone
                                            target:self
                                            action:@selector(finishSelection)];
    }
    else if (_markList.count == 0) {
        self.navigationItem.rightBarButtonItem = nil;
    }
}

- (void)swipeableTableViewCell:(SWTableViewCell *)cell
    didTriggerRightUtilityButtonWithIndex:(NSInteger)index
{
    NSIndexPath *indexPath = [self.tableView indexPathForCell:cell];
    [[NSFileManager defaultManager]
        removeItemAtPath:[SharedDeclerations
                             savePathForFile:_dataSource[indexPath.row]]
                   error:nil];
    [_dataSource removeObjectAtIndex:indexPath.row];
    [self.tableView deleteRowsAtIndexPaths:@[ indexPath ]
                          withRowAnimation:UITableViewRowAnimationFade];
}

@end