//
//  BooruClient.m
//  cunnyfinder
//
//  Created by James Shiffer on 12/19/22.
//  Copyright © 2022 FemboyFinancial. All rights reserved.
//

#import "BooruClient.h"

@implementation BooruClient

-(id)init:(NSArray *)waifus
{
    self.urlFormat = @"https://gelbooru.com/index.php?page=dapi&s=post&q=index&limit=1&tags=%@%%20%@";
    self.tags = @"score%3A%3E%3D10%20sort%3Arandom%201girl%20solo";
    self.waifus = [[NSMutableArray alloc] initWithArray:waifus];
    self.metadata = nil;
    return self;
}

+(NSString *)urlEncode:(NSString*)str
{
    CFStringRef urlString = CFURLCreateStringByAddingPercentEscapes(
        NULL,
        (CFStringRef)str,
        NULL,
        (CFStringRef)@"!*'\"();:@&=+$,/?%#[]% ",
        kCFStringEncodingUTF8
    );
    return (NSString *)CFBridgingRelease(urlString);
}


-(BooruImage *)search
{
    NSString* randomWaifu = self.waifus[arc4random_uniform(self.waifus.count)];
    NSLog(@"searching for pics of %@", randomWaifu);
    NSString* urlStr = [[NSString alloc] initWithFormat:self.urlFormat, self.tags, [BooruClient urlEncode:randomWaifu]];
    NSURL* url = [NSURL URLWithString:urlStr];
    NSXMLParser* xml = [[NSXMLParser alloc] initWithContentsOfURL:url];
    BooruXMLParserDelegate* parser = [[BooruXMLParserDelegate alloc] init];
    [xml setDelegate:parser];
    [xml setShouldProcessNamespaces:NO];
    [xml setShouldReportNamespacePrefixes:NO];
    [xml setShouldResolveExternalEntities:NO];
    [xml parse];
    if ([xml parserError])
    {
        NSLog(@"parsing error: %@", [xml parserError]);
    }
    NSLog(@"found image id: %@", parser.data[@"id"]);
    return [[BooruImage alloc] init:parser.data];
}

-(void)downloadAndDisplayImage:(NSURL *)url inView:(NSImageView *)imageView
{
    self.imageView = imageView;
    NSOperationQueue* queue = [NSOperationQueue new];
    NSInvocationOperation* operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(downloadImage:) object:url];
    [queue addOperation:operation];
}

-(void)downloadImage:(NSURL *)url
{
    NSData* imageData = [[NSData alloc] initWithContentsOfURL:url];
    NSImage* image = [[NSImage alloc] initWithData:imageData];
    [self performSelectorOnMainThread:@selector(displayImage:) withObject:image waitUntilDone:YES];
}

-(void)displayImage:(NSImage *)image
{
    self.imageView.image = image;
}

-(void)reset
{
    self.metadata = nil;
}

@end