import java.util.*;
import java.io.*;
import java.util.stream.*;

public class PokemonSearch {
    public static void main(String[] args) throws FileNotFoundException{
        Scanner s = new Scanner(new File("pokemon.csv"));
        s.nextLine();

        // A list of all the Pokemon in the file
        List<Pokemon> pokedex = new LinkedList<Pokemon>();
        // A map from each Pokemon name to it's Pokemon object,
        Map<String, Pokemon> pokeMap = new HashMap<String, Pokemon>();

        while (s.hasNextLine()) {
            String line = s.nextLine();
            Pokemon pokemon = new Pokemon(line);
            pokedex.add(pokemon);
            pokeMap.put(pokemon.name, pokemon);
        }

        // Problem 1: Print out all the pokemon names
        pokedex                            // List<Pokemon> - all the Pokemon
            .stream()                       // Stream<Pokemon> - all the Pokemon
            .map((pokemon) -> pokemon.name) // Stream<String> - all the Pokemon names
            .forEach(System.out::println);  // void -> print out the Pokemon names

        // Problem 2: Print out the names of only the pokemon from the first generation
        pokedex
            .stream()
            .filter((pokemon) -> pokemon.generation == 1) // All Pokemon from Generation 1
            .map((pokemon) -> pokemon.name) // names of Generation 1 Pokemon
            .filter((name) -> !name.contains("Mega ")) // names of Gen 1 Pokemon without "Mega " in the name
            .forEach(System.out::println); // void - Print out all the remaining names

        // Problem 3: Calculate the total sum of the stats our pokemon team
        List<Pokemon> team = new LinkedList<Pokemon>();
        team.add(pokeMap.get("Pikachu"));
        team.add(pokeMap.get("Magikarp"));
        team.add(pokeMap.get("Magikarp"));
        team.add(pokeMap.get("Lucario"));

        /*
           How we would solve this in a cumulative sum fashion?

           int sum = 0;
           for (Pokemon pokemon : team) {
           sum = sum + poke.totalStats;
           }
           System.out.println(sum);
        */

        int sum = team
            .stream()
            .map((pokemon) -> pokemon.totalStats)
            .reduce(0, (sum1, totalStats) -> sum1 + totalStats);

        // Start with a initial value of 0. For every element in our stream,
        // set it to totalStats and set our cumulative variable sum1 to
        // sum1 + totalStats

        System.out.println(sum);
    }
}