/**
 * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: GPL-3.0-or-later
 */

#import "NCNotification.h"

#import "NextcloudTalk-Swift.h"

@implementation NCNotification

+ (instancetype)notificationWithDictionary:(NSDictionary *)notificationDict
{
    if (!notificationDict || ![notificationDict isKindOfClass:[NSDictionary class]]) {
        return nil;
    }
    
    NCNotification *notification = [[NCNotification alloc] init];
    notification.notificationId = [[notificationDict objectForKey:@"notification_id"] integerValue];
    notification.app = [notificationDict objectForKey:@"app"];
    notification.objectId = [notificationDict objectForKey:@"object_id"];
    notification.objectType = [notificationDict objectForKey:@"object_type"];
    notification.subject = [notificationDict objectForKey:@"subject"];
    notification.subjectRich = [notificationDict objectForKey:@"subjectRich"];
    notification.subjectRichParameters = [notificationDict objectForKey:@"subjectRichParameters"];
    notification.message = [notificationDict objectForKey:@"message"];
    notification.messageRich = [notificationDict objectForKey:@"messageRich"];
    notification.messageRichParameters = [notificationDict objectForKey:@"messageRichParameters"];
    notification.actions = [notificationDict objectForKey:@"actions"];

    NSISO8601DateFormatter *formatter = [[NSISO8601DateFormatter alloc] init];
    notification.datetime = [formatter dateFromString:[notificationDict objectForKey:@"datetime"]];

    if (![notification.subjectRichParameters isKindOfClass:[NSDictionary class]]) {
        notification.subjectRichParameters = @{};
    }
    
    if (![notification.messageRichParameters isKindOfClass:[NSDictionary class]]) {
        notification.messageRichParameters = @{};
    }
    
    return notification;
}

- (NCNotificationType)notificationType
{
    NCNotificationType type = kNCNotificationTypeRoom;
    if ([_objectType isEqualToString:@"chat"]) {
        type = kNCNotificationTypeChat;
    } else if ([_objectType isEqualToString:@"recording"]) {
        type = kNCNotificationTypeRecording;
    } else if ([_objectType isEqualToString:@"call"]) {
        type = kNCNotificationTypeCall;
    } else if ([_objectType isEqualToString:@"remote_talk_share"]) {
        type = kNCNotificationTypeFederation;
    }
    return type;
}

- (NSString *)roomToken
{
    // Starting with NC 24 objectId additionally contains the messageId: "{roomToken}/{messageId}"
    if ([_objectId containsString:@"/"]) {
        NSArray *objectIdComponents = [_objectId componentsSeparatedByString:@"/"];
        return objectIdComponents[0];
    }

    return _objectId;
}

- (NSString *)chatMessageAuthor
{
    NSString *author = [[_subjectRichParameters objectForKey:@"user"] objectForKey:@"name"];
    NSString *guest = [[_subjectRichParameters objectForKey:@"guest"] objectForKey:@"name"];
    if (guest) {
        author = [NSString stringWithFormat:@"%@ (%@)", guest, NSLocalizedString(@"guest", nil)];
    }
    return author ? author : NSLocalizedString(@"Guest", nil);
}

- (NSString *)chatMessageTitle
{
    NSString *title = [self chatMessageAuthor];
    // Check if the room has a name
    NSArray *parameters = [self getParametersFromRichText:_subjectRich];
    for (int i = 0; i < parameters.count; i++) {
        NSTextCheckingResult *match = [parameters objectAtIndex:i];
        NSString* parameter = [_subjectRich substringWithRange:match.range];
        NSString *parameterKey = [[parameter stringByReplacingOccurrencesOfString:@"{" withString:@""]
                                  stringByReplacingOccurrencesOfString:@"}" withString:@""];
        if ([parameterKey isEqualToString:@"reaction"]) {
            return _subject;
        }
        if ([parameterKey isEqualToString:@"call"]) {
            NSString *inString = NSLocalizedString(@"in", nil);
            title = [title stringByAppendingString:[NSString stringWithFormat:@" %@ %@", inString, [[_subjectRichParameters objectForKey:@"call"] objectForKey:@"name"]]];
        }
    }
    return title;
}

- (NSArray *)getParametersFromRichText:(NSString *)text
{
    NSError *error = nil;
    NSRegularExpression *parameterRegex = [NSRegularExpression regularExpressionWithPattern:@"\\{([^}]+)\\}" options:NSRegularExpressionCaseInsensitive error:&error];
    return [parameterRegex matchesInString:text options:0 range:NSMakeRange(0, [text length])];
}

- (NSArray *)notificationActions
{
    if (!self.actions) {
        return nil;
    }

    NSMutableArray *resultActions = [[NSMutableArray alloc] init];

    for (NSDictionary *dict in self.actions) {
        NCNotificationAction *notificationAction = [[NCNotificationAction alloc] initWithDictionary:dict];

        [resultActions addObject:notificationAction];
    }

    return resultActions;
}

@end