INTULocationRequest.h

//
//  INTULocationRequest.h
//
//  Copyright (c) 2014 Intuit Inc.
//
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//  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
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#import <Foundation/Foundation.h>
#import <CoreLocation/CoreLocation.h>
#import "INTULocationRequestDefines.h"

@class CLLocation;
@class INTULocationRequest;

/**
 Protocol for the INTULocationRequest to notify the its delegate that a request has timed out.
 */
@protocol INTULocationRequestDelegate

/**
 Notification that a location request has timed out.
 
 @param locationRequest The location request that timed out.
 */
- (void)locationRequestDidTimeout:(INTULocationRequest *)locationRequest;

@end


/**
 Represents a geolocation request that is created and managed by INTULocationManager.
 */
@interface INTULocationRequest : NSObject

/** The delegate for this location request. */
@property (nonatomic, weak) id<INTULocationRequestDelegate> delegate;
/** The request ID for this location request (set during initialization). */
@property (nonatomic, readonly) INTULocationRequestID requestID;
/** Whether this is a subscription request (desired accuracy is INTULocationAccuracyNone). */
@property (nonatomic, readonly) BOOL isSubscription;
/** The desired accuracy for this location request.
    If set to INTULocationAccuracyNone, this will be a subscription request (executes block on each location update indefinitely until canceled). */
@property (nonatomic, assign) INTULocationAccuracy desiredAccuracy;
/** The maximum amount of time the location request should be allowed to live before completing.
    If this value is exactly 0.0, it will be ignored (the request will never timeout by itself). */
@property (nonatomic, assign) NSTimeInterval timeout;
/** How long the location request has been alive since the timeout value was last set. */
@property (nonatomic, readonly) NSTimeInterval timeAlive;
/** Whether this location request has timed out (will also be YES if it has been completed). */
@property (nonatomic, readonly) BOOL hasTimedOut;
/** The block to execute when the location request completes. */
@property (nonatomic, copy) INTULocationRequestBlock block;

/** Completes the location request. */
- (void)complete;
/** Forces the location request to consider itself timed out. */
- (void)forceTimeout;
/** Cancels the location request. */
- (void)cancel;

/** Starts the location request's timeout timer if a nonzero timeout value is set, and the timer has not already been started. */
- (void)startTimeoutTimerIfNeeded;

/** Returns the associated recency threshold (in seconds) for the location request's desired accuracy level. */
- (NSTimeInterval)updateTimeStaleThreshold;

/** Returns the associated horizontal accuracy threshold (in meters) for the location request's desired accuracy level. */
- (CLLocationAccuracy)horizontalAccuracyThreshold;

@end