//
//  KMRedactSelectPagesWindowController.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2023/12/19.
//

import Cocoa

class KMRedactSelectPagesWindowController: NSWindowController {
    
    var pdfDocument: CPDFDocument?
    var selectedPages = NSMutableArray()
    
    @IBOutlet weak var titleLabel: NSTextField!
    @IBOutlet weak var allPagesButton: NSButton!
    @IBOutlet weak var oddPagesButton: NSButton!
    @IBOutlet weak var evenPagesButton: NSButton!
    @IBOutlet weak var otherButton: NSButton!
    @IBOutlet weak var otherTextField: NSTextField!
    @IBOutlet weak var pagesLabel: NSTextField!
    @IBOutlet weak var okButton: NSButton!
    @IBOutlet weak var cancelButton: NSButton!
    
    var callback: ((NSMutableArray)->Void)?
    
    convenience init(document: CPDFDocument) {
        self.init(windowNibName: "KMRedactSelectPagesWindowController")
        
        self.pdfDocument = document
    }

    override func windowDidLoad() {
        super.windowDidLoad()
    
        self.titleLabel.stringValue = KMLocalizedString("Repeat Mark Across Pages")
        self.allPagesButton.title = KMLocalizedString("All Pages")
        self.oddPagesButton.title = KMLocalizedString("Odd Pages Only")
        self.evenPagesButton.title = KMLocalizedString("Even Pages Only")
        self.otherTextField.placeholderString = KMLocalizedString("e.g. 1,3-5,10")
        self.cancelButton.title = KMLocalizedString("Cancel")
        self.okButton.title = KMLocalizedString("OK")
        if(self.pdfDocument != nil) {
            self.pagesLabel.stringValue = String(format: "/%ld", self.pdfDocument!.pageCount)
        }
        self.otherTextField.isEnabled = false
        self.allPagesButton.state = .on
    }

    @IBAction func allpages_button(_ sender: NSButton) {
        if(sender.state == .on) {
            self.oddPagesButton.state = .off
            self.evenPagesButton.state = .off
            self.otherButton.state = .off
            self.otherTextField.isEnabled = false
        } else {
            self.allPagesButton.state = .on
        }
    }
    
    @IBAction func oddpages_button(_ sender: NSButton) {
        if(sender.state == .on) {
            self.allPagesButton.state = .off
            self.evenPagesButton.state = .off
            self.otherButton.state = .off
            self.otherTextField.isEnabled = false
        } else {
            self.oddPagesButton.state = .on
        }
    }
    
    @IBAction func evenPages_button(_ sender: NSButton) {
        if(sender.state == .on) {
            self.oddPagesButton.state = .off
            self.allPagesButton.state = .off
            self.otherButton.state = .off
            self.otherTextField.isEnabled = false
        } else {
            self.evenPagesButton.state = .on
        }
    }
    
    @IBAction func other_button(_ sender: NSButton) {
        if(sender.state == .on) {
            self.oddPagesButton.state = .off
            self.evenPagesButton.state = .off
            self.allPagesButton.state = .off
            self.otherTextField.isEnabled = true
        } else {
            self.otherButton.state = .on
        }
    }
    
    @IBAction func sure_button(_ sender: NSButton) {
        self.selectedPages = NSMutableArray()
        var hasError = false
        if (self.otherButton.state == .on) {
//             hasError = [self isInvalidString:self.otherTextField.stringValue];
            hasError = KMPageRangeTools.isValidPagesString(pagesString: self.otherTextField.stringValue) == false
            let pages = KMPageRangeTools.findSelectPage(pageRangeString: self.otherTextField.stringValue, pageCount: Int(self.pdfDocument?.pageCount ?? 0))
            for i in pages {
                self.selectedPages.add(NSNumber(integerLiteral: i))
            }
        } else if (self.evenPagesButton.state == .on) {
            var tempPagesArray = NSMutableArray()
            for i in 0 ..< self.pdfDocument!.pageCount {
                if ((i+1)%2 == 0) {
                    tempPagesArray.add(NSNumber(integerLiteral: Int(i) + 1))
                }
            }
            self.selectedPages = tempPagesArray
        } else if (self.oddPagesButton.state == .on) {
            var tempPagesArray = NSMutableArray()
            for i in 0 ..< self.pdfDocument!.pageCount {
                if ((i+1)%2 == 1) {
                    tempPagesArray.add(NSNumber(integerLiteral: Int(i) + 1))
                }
            }
            self.selectedPages = tempPagesArray
        } else {
            var tempPagesArray = NSMutableArray()
            for i in 0 ..< self.pdfDocument!.pageCount {
                tempPagesArray.add(NSNumber(integerLiteral: Int(i) + 1))
            }
            self.selectedPages = tempPagesArray
        }
        if (hasError || self.selectedPages.count < 1) {
            let message = String(format: "%@ %@", self.pdfDocument?.documentURL.lastPathComponent ?? "", KMLocalizedString("Invalid page range or the page number is out of range. Please try again."))
            KMAlertTool.runModelForMainThread(message: message)
            return;
        }
        if self.callback != nil{
            self.callback!(self.selectedPages)
        }
        self.km_quick_endSheet()
    }
    
    @IBAction func cancel_button(_ sender: AnyObject?) {
        if self.callback != nil {
            self.callback!(NSMutableArray())
        }
        self.km_quick_endSheet()
    }
    
    /*
     - (BOOL)isInvalidString:(NSString *)text {
         NSInteger pageNumber = self.pdfDocument.pageCount;
         NSMutableArray *pageNumbers = [[[NSMutableArray alloc] init] autorelease];
         BOOL isInvalid = NO;
         if (!isInvalid) {
             NSArray *array = [text componentsSeparatedByString:@","];
             for (NSString *s in array) {
                 if ([s isEqualToString:@""]) {
                     isInvalid = YES;
                     break;
                 } else {
                     NSArray *pages = [s componentsSeparatedByString:@"-"];
                     if ([pages count] > 2) {
                         isInvalid = YES;
                         break;
                     } else if ([pages count] == 1) {
                         NSString *p = [pages objectAtIndex:0];
                         if ([p isEqualToString:@""] ||
                             [p intValue] > pageNumber ||
                             [p integerValue] == 0) {
                             isInvalid = YES;
                             break;
                         } else {
                             BOOL isEqual = NO;
                             for (NSNumber *pageNumber in pageNumbers) {
                                 if ([pageNumber integerValue] == [p integerValue]) {
                                     isEqual = YES;
                                     isInvalid = YES;
                                     break;
                                 }
                             }
                             if (!isEqual) {
                                 [pageNumbers addObject:[NSNumber numberWithInteger:[p integerValue]]];
                             }
                         }
                     } else if([pages count] == 2) {
                         NSString *p1 = [pages objectAtIndex:0];
                         NSString *p2 = [pages objectAtIndex:1];
                         if ([p1 isEqualToString:@""] ||
                             [p2 isEqualToString:@""] ||
                             [p1 intValue] >  [p2 intValue] ||
                             [p2 intValue] > pageNumber ||
                             [p1 integerValue] == 0) {
                             isInvalid = YES;
                             break;
                         } else {
                             BOOL isEqual = NO;
                             for (int i=[p1 intValue]; i<=[p2 intValue]; i++) {
                                 for (NSNumber *pageNumber in pageNumbers) {
                                     if ([pageNumber integerValue] == i) {
                                         isEqual = YES;
                                         isInvalid = YES;
                                         break;
                                     }
                                 }
                             }
                             if (!isEqual) {
                                 for (int i=[p1 intValue]; i<=[p2 intValue]; i++) {
                                     [pageNumbers addObject:[NSNumber numberWithInteger:i]];
                                 }
                             }
                         }
                     }
                 }
             }
         }
         if ([text length] == 0) {
             isInvalid = YES;
         }
         if (!isInvalid) {
             self.selectedPages = pageNumbers;
         } else {
             self.selectedPages = nil;
         }
         return isInvalid;
     }
     */
}