//
//  RASingleton.m
//  Apex And Drivers
//
//  Created by Jack on 2018/6/6.
//  Copyright © 2018年 USAI. All rights reserved.
//

#import "RASingleton.h"

static RASingleton *singleton;

@implementation RASingleton {
    NSString *_secretKey;
}

+ (instancetype)sharedInstance {
    
    static dispatch_once_t tocken;
    dispatch_once(&tocken, ^{
        singleton = [[RASingleton alloc] init];
        singleton->_secretKey = @"usai";
    });
    return singleton;
}

#pragma mark - User

- (NSString *)secretKey {
    return _secretKey;
}

- (NSString *)encryptUser {
    
    if (!self.user) {
        return nil;
    }
    return [self encryptString:self.user];
}

- (NSString *)encryptPassword {
    
    if (!self.password) {
        return nil;
    }
    return [self encryptString:self.password];
}

- (void)saveUserInfo {
    if (self.user && self.password) {
        
        NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
        [defaults removeObjectForKey:@"user"];
        [defaults removeObjectForKey:@"password"];
        
        [defaults setValue:self.encryptUser forKey:@"user"];
        [defaults setValue:self.encryptPassword forKey:@"password"];
        [defaults setBool:TRUE forKey:@"autologin"];
        [defaults synchronize];
    }
}

- (NSString *)savedUser {
    NSString * user = [self decryptString:[[NSUserDefaults standardUserDefaults] stringForKey:@"user"]];
    return user;
}

- (NSString *)savedPassword {
    NSString * password = [self decryptString:[[NSUserDefaults standardUserDefaults] stringForKey:@"password"]];
    return password;
}

- (void)loginUser:(NSString *)user password:(NSString *)password {
    _user = user;
    _password = password;
    
    [self saveUserInfo];
    
    [self bindUserWithNotificationToken];
}

- (BOOL)autoLogin {
    _user = [self savedUser];
    _password = [self savedPassword];
    
    return _user.length && _password.length;
}

- (void)setNotificationToken:(NSString *)notificationToken {
    _notificationToken = notificationToken;
    
    [self bindUserWithNotificationToken];
}

- (void)bindUserWithNotificationToken {
    
    if (_user.length && _password.length && _notificationToken.length) {
        [RADataProvider bindNitificationToken:self.notificationToken];
    }
}

- (void)logout {
    _user = nil;
    _password = nil;
    
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults removeObjectForKey:@"user"];
    [defaults removeObjectForKey:@"password"];
    [defaults synchronize];
}

#pragma mark - Location

- (void)setRequiredLocation:(BOOL)requiredLocation {
    _requiredLocation = requiredLocation;
    
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    [defaults setBool:_requiredLocation forKey:@"requiredLocation"];
    [defaults synchronize];
    
    [self sendRequiredLocationNotification];
}

- (void)loadSavedReuqiredLocation { // 启动的时候
    
    NSUserDefaults *defaults =[NSUserDefaults standardUserDefaults];
    _requiredLocation = [defaults objectForKey:@"requiredLocation"];
    
    [self sendRequiredLocationNotification];
}

- (void)sendRequiredLocationNotification {
    
    if (_requiredLocation) {
        [[NSNotificationCenter defaultCenter] postNotificationName:RANotificationStartLocation object:nil];
    } else {
        [[NSNotificationCenter defaultCenter] postNotificationName:RANotificationStopLocation object:nil];
    }
    
}

#pragma mark - Utils

- (NSString *)encryptString:(NSString *)str {
    if (str == nil) {
        return nil;
    }
    return [AESCrypt encrypt:str password:self.secretKey];
}

- (NSString *)decryptString:(NSString *)str {
    if (str == nil) {
        return nil;
    }
    return [AESCrypt decrypt:str password:self.secretKey];
}

@end