FSMEngine.m
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//
// FSMEngine.m
// RealReachability
//
// Created by Dustturtle on 16/1/19.
// Copyright © 2016 Dustturtle. All rights reserved.
//
#import "FSMEngine.h"
#import "ReachState.h"
#import "ReachStateWIFI.h"
#import "ReachStateUnloaded.h"
#import "ReachStateWWAN.h"
#import "ReachStateUnReachable.h"
#import "ReachStateLoading.h"
#if (!defined(DEBUG))
#define NSLog(...)
#endif
@interface FSMEngine()
@property (nonatomic, assign) RRStateID currentStateID;
@property (nonatomic, strong) NSArray *allStates;
@end
@implementation FSMEngine
- (id)init
{
if (self = [super init])
{
// created only once
_allStates = @[[ReachStateUnloaded state], [ReachStateLoading state], [ReachStateUnReachable state], [ReachStateWIFI state], [ReachStateWWAN state]];
}
return self;
}
- (void)dealloc
{
self.allStates = nil;
}
- (void)start
{
self.currentStateID = RRStateUnloaded;
}
- (NSInteger)receiveInput:(NSDictionary *)dic
{
NSError *error = nil;
ReachState *currentState = self.allStates[self.currentStateID];
RRStateID newStateID = [currentState onEvent:dic withError:&error];
if (error)
{
NSLog(@"onEvent error:%@", error);
}
RRStateID previousStateID = self.currentStateID;
self.currentStateID = newStateID;
//NSLog(@"curStateID is %@", @(self.currentStateID));
return (previousStateID == self.currentStateID) ? -1 : 0;
}
- (BOOL)isCurrentStateAvailable
{
if (self.currentStateID == RRStateUnReachable || self.currentStateID == RRStateWWAN
|| self.currentStateID == RRStateWIFI)
{
return YES;
}
else
{
return NO;
}
}
@end