//
//  ViewControllerScreen.m
//  FMC Planner 2
//
//  Created by Kilian Hofmann on 20.03.16.
//  Copyright © 2016 Kilian Hofmann. All rights reserved.
//

#import "ViewController.h"
#import "ViewControllerScreen.h"

@implementation ViewControllerScreen

NavDataParser *parser = nil;

#pragma mark - View management and navigation

- (void)viewDidLoad
{
    [super viewDidLoad];

    // Do any additional setup after loading the view.
    // Init Start Page

    [self clearScreen];
    _Header.text = @"START";
    _Scratchpad.text = @"";
    _numRoutePage = 1;
    // ADJUST BASED ON SAVE
    _maxNumRoutePages = 1;

    // Tap gesture shit
    for (UILabel *label in _LSK) {
        label.adjustsFontSizeToFitWidth = YES;
        UITapGestureRecognizer *reg = [[UITapGestureRecognizer alloc]
            initWithTarget:self
                    action:@selector(enterLSK:)];
        reg.numberOfTapsRequired = 1;
        reg.numberOfTouchesRequired = 1;
        [label addGestureRecognizer:reg];
    }
}

- (void)viewDidAppear:(BOOL)animated
{
    [super viewDidAppear:YES];
    [self loadScreen:@"MENU" withOptions:nil];
}

- (void)viewDidLayoutSubviews
{
    _FrameHeight.constant = self.view.frame.size.height / 14.5;
    // Size and LineBreak
    _Header.font =
        [SharedDeclerations findAdaptiveFontForUILabelSize:_Header.frame.size
                                           withMinimumSize:5
                                                   withMod:0.7];
    _Header.adjustsFontSizeToFitWidth = YES;
    _Scratchpad.font = [SharedDeclerations
        findAdaptiveFontForUILabelSize:_Scratchpad.frame.size
                       withMinimumSize:5
                               withMod:0.7];
    _Scratchpad.adjustsFontSizeToFitWidth = YES;
    for (UILabel *label in _LSK) {
        label.font = [SharedDeclerations
            findAdaptiveFontForUILabelSize:_Header.frame.size
                           withMinimumSize:5
                                   withMod:0.6];
    }
}

#pragma mark - LSK action

- (void)enterLSK:(UITapGestureRecognizer *)tapReg
{
    parser = _main.navDataParser;
    if ([_Scratchpad.text isEqualToString:INVALID] ||
        [_Scratchpad.text isEqualToString:NOTREADY]) {
        // DO NOTHING AS OF YET
    }
    else if ([_Scratchpad.text isEqualToString:@"DELETE"]) {
        ((UILabel *)tapReg.view).text = @"";
        _Scratchpad.text = @"";
    }
    else if ([_Header.text isEqualToString:@"MENU"]) {
        if ([((UILabel *)tapReg.view)
                    .restorationIdentifier isEqualToString:@"LSKR1"]) {
            if ([((UILabel *)tapReg.view).text isEqualToString:@""]) {
                _main.firstLoad = true;
            }
            else if (!([((UILabel *)tapReg.view)
                             .text isEqualToString:_Scratchpad.text])) {
                _main.firstLoad = true;
            }
            _main.backupCoRte = ((UILabel *)tapReg.view).text;
            ((UILabel *)tapReg.view).text = _Scratchpad.text;
            _Scratchpad.text = @"";
        }
        else if ([((UILabel *)tapReg.view)
                         .restorationIdentifier isEqualToString:@"LSKR3"]) {
            ViewControllerRouteRequest *rq = [self.storyboard
                instantiateViewControllerWithIdentifier:@"RTEFINDER"];
            rq.main = _main;
            [self presentViewController:rq animated:YES completion:nil];
        }
        else if ([((UILabel *)tapReg.view)
                         .restorationIdentifier isEqualToString:@"LSKR4"]) {
            [_main saveToFile:_main.save];
            _main.save = [[NSMutableDictionary alloc] init];
            [self clearScreen];
            _numRoutePage = 1;
            _maxNumRoutePages = 1;
            NSArray *optional = [[[NSDictionary alloc]
                initWithContentsOfFile:[[NSBundle mainBundle]
                                           pathForResource:@"LSKs"
                                                    ofType:@"plist"]]
                valueForKey:_Header.text];
            for (UILabel *label in _LSK) {
                for (int i = 0; i < optional.count; i++) {
                    if (label.tag == i && [label.text isEqualToString:@""]) {
                        label.text = optional[i];
                        if (!([optional[i] isEqualToString:@""])) {
                            label.userInteractionEnabled = YES;
                        }
                    }
                }
            }
        }
        else if ([((UILabel *)tapReg.view)
                         .restorationIdentifier isEqualToString:@"LSKR5"]) {
            // TODO: Export to PMDG route format
        }
        else if ([((UILabel *)tapReg.view)
                         .restorationIdentifier isEqualToString:@"LSKR6"]) {
            UINavigationController *sm = [self.storyboard
                instantiateViewControllerWithIdentifier:@"ServiceMenu"];
            ((ViewControllerServiceMenu *)(sm.childViewControllers).firstObject)
                .main = _main;
            [self presentViewController:sm animated:YES completion:nil];
        }
        else {
            ((UILabel *)tapReg.view).text = _Scratchpad.text;
            _Scratchpad.text = @"";
        }
    }
    else if ([[_Header.text substringToIndex:3] isEqualToString:@"ROU"]) {
        if (parser.parserReady) {
            // Required entries for checks
            UILabel *opposite = nil;

            UILabel *precedingWaypoint = nil;
            UILabel *precedingAirway = nil;

            for (UILabel *label in _LSK) {
                // General population
                if (tapReg.view.tag > 5) {
                    // Right hand LSKs
                    if (label.tag == tapReg.view.tag - 6) {
                        opposite = label;
                    }
                    if (label.tag == tapReg.view.tag - 7) {
                        precedingAirway = label;
                    }
                    if (label.tag == tapReg.view.tag - 1) {
                        precedingWaypoint = label;
                    }
                }
                else {
                    // Left hand LSKs
                    if (label.tag == tapReg.view.tag + 6) {
                        opposite = label;
                    }
                    if (label.tag == tapReg.view.tag + 5) {
                        precedingWaypoint = label;
                    }
                    if (label.tag == tapReg.view.tag - 1) {
                        precedingAirway = label;
                    }
                }
                // Specials for page transitioning querries
                if (tapReg.view.tag == 6 || tapReg.view.tag == 0) {
                    // First waypoint or airway on page
                    precedingAirway = [[UILabel alloc] init];
                    precedingWaypoint = [[UILabel alloc] init];
                    precedingAirway.text = (_main.save)[[NSString
                        stringWithFormat:@"ROUTE %lu/@LSKL6",
                                         (unsigned long)_numRoutePage - 1]];
                    precedingWaypoint.text = (_main.save)[[NSString
                        stringWithFormat:@"ROUTE %lu/@LSKR6",
                                         (unsigned long)_numRoutePage - 1]];
                    precedingAirway.restorationIdentifier = @"LSKL6";
                    precedingWaypoint.restorationIdentifier = @"LSKR6";
                    if (precedingWaypoint.text == nil) {
                        precedingWaypoint.text = @"";
                    }
                    if (precedingAirway.text == nil) {
                        precedingAirway.text = @"";
                    }
                }
            }
            NSArray *finds = nil;
            // Checks
            if (tapReg.view.tag <= 5) {
                // Left hand LSKs, aka airway entry
                if (tapReg.view.tag == 0 && [[_Header.text substringToIndex:8]
                                                isEqualToString:@"ROUTE 1/"]) {
                    // Not allowed
                    NSLog(@"NOT ALLOWED");
                }
                else if ([precedingWaypoint.text isEqualToString:@""] &&
                         [opposite.text isEqualToString:@""]) {
                    if ([precedingAirway.text
                            isEqualToString:_Scratchpad.text]) {
                        // Case : L2 == T104, L3 == T104, R1 == DKB
                        //      : INVALID
                        NSLog(@"NOT ALLOWED 2");
                    }
                    else {
                        finds = [parser
                            findCrosspointBetween:precedingAirway.text
                                              and:_Scratchpad.text
                                        withStart:precedingWaypoint.text];
                        if (finds.count > 0) {
                            precedingWaypoint.text = finds.firstObject;
                            if (tapReg.view.tag == 0) {
                                (_main.save)[[NSString
                                    stringWithFormat:
                                        @"ROUTE %lu/@%@",
                                        (unsigned long)_numRoutePage - 1,
                                        precedingWaypoint
                                            .restorationIdentifier]] =
                                    precedingWaypoint.text;
                            }
                            else {
                                (_main.save)[
                                    [NSString stringWithFormat:
                                                  @"ROUTE %lu/@%@",
                                                  (unsigned long)_numRoutePage,
                                                  precedingWaypoint
                                                      .restorationIdentifier]] =
                                    precedingWaypoint.text;
                            }
                        }
                    }
                }
                else if (![precedingWaypoint.text isEqualToString:@""] &&
                         [opposite.text isEqualToString:@""]) {
                    // Case : L2 == T104, R1 == DKB
                    //      : Check if R1 on L2
                    finds = [parser findWaypoint:precedingWaypoint.text
                                        onAirway:_Scratchpad.text];
                }
                else if (!([precedingWaypoint.text isEqualToString:@""] &&
                           [opposite.text isEqualToString:@""])) {
                    // Case : L2 == T104, L3 == DIRECT, R2 == DKB, R3 == WLD
                    //      : Check for validity on R2 and R3, L3 =!= T104
                    finds = [parser findWaypoint:precedingWaypoint.text
                                        onAirway:_Scratchpad.text];
                    if (finds.count > 0) {
                        finds = [parser findWaypoint:opposite.text
                                            onAirway:_Scratchpad.text];
                    }
                }
            }
            else {
                // Right hand LSKs, aka waypoint entry
                if ([precedingWaypoint.text isEqualToString:@""]) {
                    // Not allowed
                    NSLog(@"NOT ALLOWED 3");
                }
                else if ([opposite.text isEqualToString:@""]) {
                    // Special case if no airway has been entered (DIRECT gets
                    // enterd only if waypoint exists)
                    finds = [parser findWaypoint:_Scratchpad.text];
                }
                else {
                    // Check if waypoint is on airway
                    finds = [parser findWaypoint:_Scratchpad.text
                                        onAirway:opposite.text];
                }
            }

            // Writing to LSK if check are done
            if (finds.count > 0) {
                ((UILabel *)tapReg.view).text = _Scratchpad.text;
                _Scratchpad.text = @"";
                if (tapReg.view.tag > 5) {
                    if ([opposite.text isEqualToString:@""]) {
                        opposite.text = @"DIRECT";
                        (_main.save)[[NSString
                            stringWithFormat:@"ROUTE %lu/@%@",
                                             (unsigned long)_numRoutePage,
                                             opposite.restorationIdentifier]] =
                            opposite.text;
                    }
                }
            }
            else {
                _Scratchpad.text = INVALID;
            }
        }
        else if (!parser.parserReady) {
            _Scratchpad.text = NOTREADY;
        }
        else if (parser.notActive) {
            ((UILabel *)tapReg.view).text = _Scratchpad.text;
            _Scratchpad.text = @"";
        }
    }
    else {
        ((UILabel *)tapReg.view).text = _Scratchpad.text;
        _Scratchpad.text = @"";
    }
    if ([[_Header.text substringToIndex:4] isEqualToString:@"ROUT"]) {
        (_main.save)[[NSString
            stringWithFormat:@"ROUTE %lu/@%@", (unsigned long)_numRoutePage,
                             ((UILabel *)tapReg.view).restorationIdentifier]] =
            ((UILabel *)tapReg.view).text;
    }
    else {
        (_main.save)[[NSString
            stringWithFormat:@"%@@%@", _Header.text,
                             ((UILabel *)tapReg.view).restorationIdentifier]] =
            ((UILabel *)tapReg.view).text;
    }
    if (([((UILabel *)tapReg.view)
                 .restorationIdentifier isEqualToString:@"LSKR6"] ||
         tapReg.view.tag == 5) &&
        _numRoutePage == _maxNumRoutePages &&
        [[_Header.text substringToIndex:4] isEqualToString:@"ROUT"]) {
        _maxNumRoutePages += 1;
        NSRange indexSlash = [_Header.text rangeOfString:@"/"];
        _Header.text = [_Header.text
            stringByReplacingCharactersInRange:NSMakeRange(
                                                   indexSlash.location,
                                                   _Header.text.length -
                                                       indexSlash.location)
                                    withString:[NSString
                                                   stringWithFormat:
                                                       @"/%lu",
                                                       (unsigned long)
                                                           _maxNumRoutePages]];
    }
    (_main.save)[@"maxRte"] = @(_maxNumRoutePages);

    [_main saveToFile:_main.save];
}

#pragma mark - Screen actions

- (void)clearScreen
{
    for (UILabel *label in _LSK) {
        label.text = @"";
    }
}

- (void)loadScreen:(NSString *)screenName withOptions:(NSArray *)options
{
    [self clearScreen];
    _Header.text = screenName;
    NSArray *screen =
        [[NSArray alloc] initWithContentsOfFile:[[NSBundle mainBundle]
                                                    pathForResource:screenName
                                                             ofType:@"plist"]];
    for (UILabel *label in _Desc) {
        for (int j = 0; j < screen.count; j++) {
            if ((label.restorationIdentifier).intValue == j) {
                label.text = screen[j];
            }
            if (![screen[j] isEqualToString:@""] ||
                [_Header.text isEqualToString:@"ROUTE"]) {
                for (UILabel *lsk in _LSK) {
                    if (lsk.tag == j) {
                        lsk.userInteractionEnabled = YES;
                    }
                }
            }
        }
    }
    for (NSString *opt in options) {
        if ([opt isEqualToString:FMCNEXTRTEPAGE]) {
            _numRoutePage += 1;
        }
        else if ([opt isEqualToString:FMCFIRSTRTEPAGE]) {
            _numRoutePage = 1;
        }
        _Header.text = [_Header.text
            stringByAppendingString:
                [NSString stringWithFormat:@" %lu/%lu",
                                           (unsigned long)_numRoutePage,
                                           (unsigned long)_maxNumRoutePages]];
    }
    [self loadDataToScreen];
    NSArray *optional = [[[NSDictionary alloc]
        initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"LSKs"
                                                               ofType:@"plist"]]
        valueForKey:_Header.text];
    for (UILabel *label in _LSK) {
        for (int i = 0; i < optional.count; i++) {
            if (label.tag == i && [label.text isEqualToString:@""]) {
                label.text = optional[i];
                if (!([optional[i] isEqualToString:@""])) {
                    label.userInteractionEnabled = YES;
                }
            }
        }
    }
}

- (void)loadDataToScreen
{
    for (NSString *ident in _main.save) {
        NSRange range = [ident rangeOfString:@"@"];
        NSRange range2 = [ident rangeOfString:@"/"];
        if ((range.location != NSNotFound &&
             [_Header.text
                 isEqualToString:[ident substringToIndex:range.location]]) ||
            (range2.location != NSNotFound &&
             _Header.text.length > range2.location &&
             [[ident substringToIndex:range2.location]
                 isEqualToString:[_Header.text
                                     substringToIndex:range2.location]])) {
            for (UILabel *label in _LSK) {
                if ([label.restorationIdentifier
                        isEqualToString:[ident
                                            substringFromIndex:range.location +
                                                               1]]) {
                    label.text = [_main.save valueForKey:ident];
                }
            }
        }
        NSArray *optional = [[[NSDictionary alloc]
            initWithContentsOfFile:[[NSBundle mainBundle]
                                       pathForResource:@"LSKs"
                                                ofType:@"plist"]]
            valueForKey:_Header.text];
        for (UILabel *label in _LSK) {
            for (int i = 0; i < optional.count; i++) {
                if (label.tag == i && [label.text isEqualToString:@""]) {
                    label.text = optional[i];
                    if (!([optional[i] isEqualToString:@""])) {
                        label.userInteractionEnabled = YES;
                    }
                }
            }
        }
    }

    if ([[_main.save valueForKey:@"maxRte"] unsignedIntegerValue] > 0) {
        _maxNumRoutePages =
            [[_main.save valueForKey:@"maxRte"] unsignedIntegerValue];
    }
}

@end