//
//  NYTUser.m
//  Notifications for YouTube
//
//  Created by Kim Wittenburg on 18.06.13.
//  Copyright (c) 2013 Kim Wittenburg. All rights reserved.
//

#import "NYTUser.h"

@implementation NYTUser

- (id)initWithUserProfilePage:(NSXMLNode *)node
{
    self = [super init];
    if (self) {
        static NSString *const displayNamePath = @"./entry/author/name";
        static NSString *const userIDPath = @"./entry/yt:username";
        static NSString *const summaryPath = @"./entry/content";
        NSXMLElement *displayNameElement = [node nodesForXPath:displayNamePath error:nil][0];
        NSXMLElement *userIDElement = [node nodesForXPath:userIDPath error:nil][0];
        NSXMLElement *summaryElement = [node nodesForXPath:summaryPath error:nil][0];
        _displayName = displayNameElement.stringValue;
        _userID = userIDElement.stringValue;
        _channelID = [NSString stringWithFormat:@"UC%@", _userID];
        _summary = summaryElement.stringValue;
    }
    return self;
}

- (id)initWithSubscriptionEntry:(NSXMLNode *)entry
{
    self = [super init];
    if (self) {
        static NSString *const displayNamePath = @"./yt:username/@display";
        static NSString *const imagePath = @"./media:thumbnail/@url";
        static NSString *const channelIDPath = @"./yt:channelId";
        NSXMLElement *displayNameElement = [entry nodesForXPath:displayNamePath error:nil][0];
        NSXMLElement *imageElement = [entry nodesForXPath:imagePath error:nil][0];
        NSXMLElement *channelIDElement = [entry nodesForXPath:channelIDPath error:nil][0];
        _displayName = displayNameElement.stringValue;
        _imageURL = [NSURL URLWithString:imageElement.stringValue];
        _channelID = channelIDElement.stringValue;
        _userID = [_channelID substringFromIndex:2];
    }
    return self;
}

- (BOOL)isEqual:(id)object
{
    if (self == object) {
        return YES;
    }
    if (object == nil) {
        return NO;
    }
    if (![object isKindOfClass:[NYTUser class]]) {
        return NO;
    }
    return [self isEqualToUser:object];
}

- (BOOL)isEqualToUser:(NYTUser *)user
{
    if (self == user) {
        return YES;
    }
    if (self.userID) {
        if (user.userID) {
            return [self.userID isEqualToString:user.userID];
        } else {
            NSString *otherUserID = [user.channelID substringFromIndex:2]; // Remove the UC from channel ID
            return [self.userID isEqualToString:otherUserID];
        }
    } else if (self.channelID) {
        if (user.channelID) {
            return [self.channelID isEqualToString:user.channelID];
        } else {
            NSString *userID = [self.channelID substringFromIndex:2]; // Remove the UC from channel ID
            return [userID isEqualToString:user.userID];
        }
    }
    return NO; // Probably won't get here
}

@end