/*
 * Copyright 2017 Google
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#import "FIRTestAuthTokenProvider.h"
#import "FIRDatabaseQuery_Private.h"

@interface FIRTestAuthTokenProvider ()

@property (nonatomic, strong) NSMutableArray *listeners;

@end

@implementation FIRTestAuthTokenProvider

- (instancetype) initWithToken:(NSString *)token {
    self = [super init];
    if (self != nil) {
        self.listeners = [NSMutableArray array];
        self.token = token;
    }
    return self;
}

- (void) setToken:(NSString *)token {
    self->_token = token;
    dispatch_async([FIRDatabaseQuery sharedQueue], ^{
        [self.listeners enumerateObjectsUsingBlock:^(fbt_void_nsstring _Nonnull listener, NSUInteger idx, BOOL * _Nonnull stop) {
            listener(token);
        }];
    });

}

- (void) fetchTokenForcingRefresh:(BOOL)forceRefresh withCallback:(fbt_void_nsstring_nserror)callback {
    if (forceRefresh) {
        self.token = self.nextToken;
    }
    // Simulate delay
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(10 * NSEC_PER_MSEC)), [FIRDatabaseQuery sharedQueue], ^{
        callback(self.token, nil);
    });
}

- (void) listenForTokenChanges:(fbt_void_nsstring)listener {
    [self.listeners addObject:[listener copy]];
}

@end
