//
//  CZMemoryWeatherDataCache.m
//  CZWeatherKit
//
//  Copyright (c) 2015 Comyar Zaheri. All rights reserved.
//
//  Permission is hereby granted, free of charge, to any person obtaining a copy
//  of this software and associated documentation files (the "Software"), to
//  deal in the Software without restriction, including without limitation the
//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
//  sell copies of the Software, and to permit persons to whom the Software is
//  furnished to do so, subject to the following conditions:
//
//  The above copyright notice and this permission notice shall be included in
//  all copies or substantial portions of the Software.
//
//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
//  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
//  IN THE SOFTWARE.
//


#pragma mark - Imports

#import "CZMemoryWeatherDataCache.h"
#import "CZWeatherKitInternal.h"
#import "CZWeatherAPI.h"


#pragma mark - CZMemoryWeatherDataCache Class Extension

@interface CZMemoryWeatherDataCache ()

@property (NS_NONATOMIC_IOSONLY) NSMutableDictionary *cache;

@end


#pragma mark - CZMemoryWeatherDataCache Implementation

@implementation CZMemoryWeatherDataCache

- (instancetype)init
{
    if (self = [super init]) {
        self.cache = [NSMutableDictionary new];
    }
    return self;
}

- (void)dataForRequest:(CZWeatherRequest *)request completion:(CZWeatherDataCacheCompletion)completion
{
    if (!completion) {
        return;
    }
    
    NSString *key = [request.API cacheKeyForRequest:request];
    if (key) {
        completion(self.cache[key]);
    } else {
        completion(nil);
    }
}

- (void)storeData:(CZWeatherData *)data forRequest:(CZWeatherRequest *)request
{
    if (data) {
        NSString *key = [request.API cacheKeyForRequest:request];
        if (key) {
            self.cache[key] = data;
        }
    }
}

@end
