names search.swift

//: Playground - noun: a place where people can play

import UIKit

// peopleArray will be an Array of Dictionary objects
let thePeopleArray = [
	[   "firstName": "mom mobile",									"phone": "242-1111"],
	[   "firstName": "mom work",									"phone": "242-2222"],
	[   "firstName": "mom",				"lastName": "car",			"phone": "242-3333"],
	[   "firstName": "mom",				"lastName": "home",			"phone": "242-3333"],
	[   "firstName": "Xom",				"lastName": "mobile",		"phone": "242-4444"],
	[   "firstName": "Tom",				"lastName": "Smith",								"email": "test@mac.com"],
	[   "firstName": "John",										"phone": "111-1111"],
	[   "firstName": "John mobile",									"phone": "222-2222"],
	[   "firstName": "Johny",			"lastName": "mobile",		"phone": "333-3333"],
	[   "firstName": "Johny2",			"lastName": "mobile",		"phone": "444-4444"],
	[   "firstName": "Sam",											"phone": "777-7777"],
	[									"lastName": "Sam",			"phone": "888-8888"],
]



func findPeopleMatching(word1: String, word2: String, inArray: [[String: String]]) -> [[String: String]]? {
	
	var resultArray = [[String: String]]()

	var attributeValue = ""
	var namePredicate: NSPredicate?
	

	// First you look for an exact match: FirstName == FirstWord AND LastName == SecondWord
	
	resultArray = inArray.filter { $0["firstName"]?.lowercaseString == word1.lowercaseString && $0["lastName"]?.lowercaseString == word2.lowercaseString }
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// If no match, look for a FirstName == "FirstWord SecondWord"
	
	resultArray = inArray.filter { $0["firstName"]?.lowercaseString == word1.lowercaseString + " " + word2.lowercaseString }
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// If no match, look for FirstName == FirstWord OR LastName == SecondWord
	
	resultArray = inArray.filter { $0["firstName"]?.lowercaseString == word1.lowercaseString || $0["lastName"]?.lowercaseString == word2.lowercaseString }
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	
	// If no match, look for FirstName Begins-With Word1
 
	attributeValue = word1 + "*";
	namePredicate = NSPredicate(format: "firstName like[c] %@", attributeValue)
	
	resultArray = inArray.filter { namePredicate!.evaluateWithObject($0) };
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// If no match, look for LastName Begins-With Word2
 
	attributeValue = word2 + "*";
	namePredicate = NSPredicate(format: "lastName like[c] %@", attributeValue)
	
	resultArray = inArray.filter { namePredicate!.evaluateWithObject($0) };
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// If no match, look for Word1 is Part-Of FirstName
 
	attributeValue = "*" + word1 + "*";
	namePredicate = NSPredicate(format: "firstName like[c] %@", attributeValue)
	
	resultArray = inArray.filter { namePredicate!.evaluateWithObject($0) };
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// If no match, look for Word2 is Part-Of LastName
 
	attributeValue = "*" + word2 + "*";
	namePredicate = NSPredicate(format: "lastName like[c] %@", attributeValue)
	
	resultArray = inArray.filter { namePredicate!.evaluateWithObject($0) };
	
	if resultArray.count > 0 {
		return resultArray
	}
	
	
	// NO matches found, so return nil
	
	return nil
}

var word1 = "mom"
var word2 = "mobile"

if let rv = findPeopleMatching(word1, word2: word2, inArray: thePeopleArray) {
	
	if rv.count == 1 {
		
		print("\nFound Exactly ONE match! \n")
		
		// returned "rv" is still an array, even if it was a single match
		
		if let person = rv.first {
			print(person)
		}
		
	} else {
		
		// just printing them out to debug console here...
		// you'll need to write a "pick which one" function
		
		print("\nMultiple Matches found... \n")
		
		for person in rv {
			print(person)
		}
		
	}

} else {
	
	print("\n\t!!! Find People returned nil - ZERO matches found !!!!")
}

print("\n\n end")