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//
// SDLSoftButtonObject.m
// SmartDeviceLink
//
// Created by Joel Fischer on 2/22/18.
// Copyright © 2018 smartdevicelink. All rights reserved.
//
#import "SDLSoftButtonObject.h"
#import "SDLError.h"
#import "SDLLogMacros.h"
#import "SDLSoftButton.h"
#import "SDLSoftButtonManager.h"
#import "SDLSoftButtonState.h"
NS_ASSUME_NONNULL_BEGIN
@interface SDLSoftButtonManager()
- (void)sdl_transitionSoftButton:(SDLSoftButtonObject *)softButton;
@end
@interface SDLSoftButtonObject()
@property (assign, nonatomic) NSUInteger buttonId;
@property (strong, nonatomic) NSString *currentStateName;
@property (weak, nonatomic) SDLSoftButtonManager *manager;
@end
@implementation SDLSoftButtonObject
- (instancetype)initWithName:(NSString *)name states:(NSArray<SDLSoftButtonState *> *)states initialStateName:(NSString *)initialStateName handler:(nullable SDLRPCButtonNotificationHandler)eventHandler {
self = [super init];
if (!self) { return nil; }
// Make sure there aren't two states with the same name
if ([self sdl_hasTwoStatesOfSameName:states]) {
return nil;
}
_name = name;
_states = states;
_currentStateName = initialStateName;
_eventHandler = eventHandler;
return self;
}
- (instancetype)initWithName:(NSString *)name state:(SDLSoftButtonState *)state handler:(nullable SDLRPCButtonNotificationHandler)eventHandler {
return [self initWithName:name states:@[state] initialStateName:state.name handler:eventHandler];
}
- (BOOL)transitionToStateNamed:(NSString *)stateName {
if ([self stateWithName:stateName] == nil) {
SDLLogE(@"Attempted to transition to state: %@ on soft button: %@ but no state with that name was found", stateName, self.name);
return NO;
}
SDLLogD(@"Transitioning button %@ to state %@", self.name, stateName);
self.currentStateName = stateName;
[self.manager sdl_transitionSoftButton:self];
return YES;
}
- (void)transitionToNextState {
NSString *nextStateName = nil;
for (NSUInteger i = 0; i < self.states.count; i++) {
if ([self.states[i].name isEqualToString:self.currentStateName]) {
NSUInteger nextStateNumber = (i == self.states.count - 1) ? 0 : (i + 1);
nextStateName = self.states[nextStateNumber].name;
break;
}
}
if (nextStateName == nil) {
return;
}
[self transitionToStateNamed:nextStateName];
}
- (SDLSoftButtonState *)currentState {
SDLSoftButtonState *state = [self stateWithName:self.currentStateName];
if (state == nil) {
@throw [NSException sdl_invalidSoftButtonStateException];
} else {
return state;
}
}
- (SDLSoftButton *)currentStateSoftButton {
SDLSoftButton *button = self.currentState.softButton;
button.softButtonID = @(self.buttonId);
button.handler = self.eventHandler;
return button;
}
- (nullable SDLSoftButtonState *)stateWithName:(NSString *)stateName {
for (SDLSoftButtonState *state in self.states) {
if ([state.name isEqualToString:stateName]) {
return state;
}
}
return nil;
}
- (BOOL)sdl_hasTwoStatesOfSameName:(NSArray<SDLSoftButtonState *> *)states {
for (NSUInteger i = 0; i < states.count; i++) {
NSString *stateName = states[i].name;
for (NSUInteger j = (i + 1); j < states.count; j++) {
if ([states[j].name isEqualToString:stateName]) {
return YES;
}
}
}
return NO;
}
- (NSString *)description {
NSMutableArray<NSString *> *allStateNames = [NSMutableArray array];
for (SDLSoftButtonState *state in self.states) {
[allStateNames addObject:state.name];
}
return [NSString stringWithFormat:@"Name: %@, Current State: %@, All States: %@", self.name, self.currentStateName, allStateNames];
}
- (NSString *)debugDescription {
return [NSString stringWithFormat:@"Name: %@, Current State: %@, All States: %@", self.name, self.currentState, self.states];
}
@end
NS_ASSUME_NONNULL_END
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