using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace Programmation_objet_TLESIO21.projet {
    public class GameManager {

        private string Path;
        private List<Pokemon> Pkm = new List<Pokemon>();
        private List<Character> Characters = new List<Character>();
        private Player p1;
        private Player p2;
        private int p1CharacterChoosen;
        private int p2CharacterChoosen;

        public GameManager() {
            this.p1CharacterChoosen = 0;
            this.p2CharacterChoosen = 0;
            this.Path = "../../../csv/";
            //this.Path = "./";
        }

        private static bool StringIsValidInt(String s) {
            foreach (char c in s) {
                if (c < '0' || c > '9')
                    return false;
            }

            return true;
        }

        private static bool StringIsValidIntFight(String s) {
            foreach (char c in s) {
                if (c < '0' || c > '7')
                    return false;
            }

            return true;
        }

        private static bool TabStringIsValidInt(String[] tab) {
            foreach(String s in tab) {
                foreach (char c in s) {
                    if (c < '0' || c > '9') {
                        return false;
                    }
                }
            }
            return true;
        }

        private static bool StringIsValidIntCharacters(String s) {
            foreach(char c in s) {
                if (c < '1' || c > '9') {
                    return false;
                }
            }

            return true;
        }

        private static String DisplayTeam(Player p) {
            String sb = "";
            int i = 0;
            foreach(Pokemon pkm in p.getTeam()) {
                if(pkm.isAlive()) {
                    sb += "["+(i+1)+"]" + pkm.getName() + ". ";
                } else {
                    sb += "[OUT]" + pkm.getName() + ". ";
                }
                ++i;
            }
            return sb;
        }

        public void InitializeGame() {

            StreamReader strm = new StreamReader(this.Path + "Title.txt");
            String strmL;

            //Read the first line of text
            strmL = strm.ReadLine();
            //Continue to read until you reach end of file
            while (strmL != null) {
                if (strmL[0] == '/') {
                    strmL = strm.ReadLine();
                }
                //write the line to console window
                Console.WriteLine(strmL);
                //Read the next line
                strmL = strm.ReadLine();
            }
            //close the file
            strm.Close();

            Console.WriteLine(" ");

            String entreeStandard;
            bool p1 = false;
            bool p2 = false;

            while(!p1) {
                Console.WriteLine("Merci d'entrer le nom du joueur 1 :");
                entreeStandard = Console.ReadLine();
                if(entreeStandard == "") {
                    Console.WriteLine("Veuillez resaisir. Nom incorrect.");
                } else {
                    this.p1 = new Player(entreeStandard);
                    p1 = true;
                }
            }

            while (!p2) {
                Console.WriteLine("Merci d'entrer le nom du joueur 2 :");
                entreeStandard = Console.ReadLine();
                if (entreeStandard == "") {
                    Console.WriteLine("Veuillez resaisir. Nom incorrect.");
                } else {
                    this.p2 = new Player(entreeStandard);
                    p2 = true;
                }
            }

            Console.WriteLine("\n====================================================================================\n");

            this.InitializePokemons();
            this.ChooseTeams();
            this.Combat();

        }

        private void ChooseTeams() {
            String entreeStandard = "";
            Console.WriteLine("Vous avez devant vous plusieurs dresseuses pokémon. Vous allez devoir choisir 6 pokémon parmis ceux de la dresseuse que vous allez choisir :\n");
            int i = 0;
            foreach(Character c in Characters) {
                Console.WriteLine("[" + (i+1) + "] " + c.ToString());
                ++i;
            }
            Console.WriteLine("Choissez la dresseuse que vous pensez être la plus apte à vous prêter des pokémon pour combattre.\n" +
                "Pour cela, rentrez le numéro affiché devant le nom de la dresseuse.");

            bool correctChoice = false;
            

            while (!correctChoice) {
                entreeStandard = Console.ReadLine();
                if(entreeStandard != "" && StringIsValidIntCharacters(entreeStandard)) {
                    correctChoice = true;
                    p1CharacterChoosen = int.Parse(entreeStandard.Substring(0,1))-1;       
                } else {
                    Console.WriteLine("Veuillez resaisir. Entrée incorrecte.");
                }

            }

            p2CharacterChoosen = getRandom(9);
            if (p2CharacterChoosen == 9) {
                p2CharacterChoosen = 8;
            }

            Console.WriteLine("Vous avez choisi de faire confiance à " + Characters[p1CharacterChoosen].getName() + ".\n");
            Console.WriteLine("Votre adversaire a choisis de faire confiance à " + Characters[p2CharacterChoosen].getName() + ".\n");

            Console.WriteLine("Maintenant, vous allez devoir choisir 6 pokémons parmis ceux de " + Characters[p1CharacterChoosen].getName() + "\n");
            
            
            i = 0;
            foreach(Pokemon pkm in Characters[p1CharacterChoosen].getPC()) {
                Console.WriteLine("[" + (i+1) + "] " + pkm.getStats());
                ++i;
            }
            Console.WriteLine("Entrez les 6 numéros des pokémons que vous souhaitez utiliser. Exemple : 1-12-5-6-10-2");
            bool isTeamValid = false;
            
            while(!isTeamValid) {
                entreeStandard = Console.ReadLine();
                String[] tab = entreeStandard.Split("-");
                if (tab.Length == 6 && TabStringIsValidInt(tab)) {
                    foreach (String s in tab) {
                        p1.choosePokemon(Characters[p1CharacterChoosen].getPC()[int.Parse(s)-1]);
                    }
                    isTeamValid = true;
                } else {
                    Console.WriteLine("Veuillez resaisir. Entrée incorrecte (Format attendu : 1-12-5-6-10-2).");
                }
            }

            Console.Write("Votre équipe est constituée de : ");
            foreach (Pokemon pkm in p1.getTeam()) {
                Console.Write(pkm.getName() + ". ");
            }
            Console.WriteLine("");

            for(int j = 0; j < 6; ++j) {
                p2.choosePokemon(Characters[p2CharacterChoosen].getPC()[getRandom(Characters[p2CharacterChoosen].getPC().Count)]);
            }

            Console.Write("L'équipe de votre adversaire est constituée de : ");
            foreach (Pokemon pkm in p2.getTeam()) {
                Console.Write(pkm.getName() + ". ");
            }
            Console.WriteLine("\n\n   Préparez vous, le combat va commencer. Vous allez envoyer " + p1.getTeam()[0].getName() +
                "et votre adversaire va envoyer " + p2.getTeam()[0].getName() + ".");

            p1.setCurrentPokemonIndex(0);
            p2.setCurrentPokemonIndex(0);
        }

        private void Combat() {
            bool isFighting = true;
            bool currentTurnisValid = false;
            String entreeStandard;
            int p2Choice = getRandom(3);

            while (isFighting) {
                Console.WriteLine("\n\n\n");
                while(!currentTurnisValid) {
                    displayCurrentPlayerTurn(p1);
                    Console.WriteLine("Pokemon adverse : " + p2.getCurrentPokemon() + " - Type : " + p2.getCurrentPokemon().getType());
                    entreeStandard = Console.ReadLine();
                    switch (entreeStandard) {
                        case "1":
                            Console.WriteLine(p1.getNom() + " décide que " + p1.getCurrentPokemon().getName() + " doit attaquer en physique.");
                            p1.getCurrentPokemon().PhysAttack(p2.getCurrentPokemon());
                            currentTurnisValid = true;
                            break;
                        case "2":
                            Console.WriteLine(p1.getNom() + " décide que " + p1.getCurrentPokemon().getName() + " doit attaquer en spécial.");
                            p1.getCurrentPokemon().SpeAttack(p2.getCurrentPokemon());
                            currentTurnisValid = true;
                            break;
                        case "3":
                            Console.WriteLine(p1.getNom() + " décide que " + p1.getCurrentPokemon().getName() + " revenir.");
                            displayTeamChange(p1);
                            entreeStandard = Console.ReadLine();
                            entreeStandard = entreeStandard.Substring(0, 1);
                            if(StringIsValidIntFight(entreeStandard)) {
                                p1.setCurrentPokemonIndex(int.Parse(entreeStandard)-1);
                            }
                            Console.WriteLine("À toi " + p2.getCurrentPokemon());
                            currentTurnisValid = true;
                            break;
                        default:
                            Console.WriteLine("Erreur de saisie. Veuillez recommencer.");
                            break;
                    }
                }

                currentTurnisValid = false;

                if (!p2.getCurrentPokemon().isAlive()) {
                    bool correctSwitchChoice = false;
                    if (p2.canStillFight()) {
                        isFighting = false;
                        Console.WriteLine("La partie est terminée. " + p1.getNom() + " a gagné !");
                        correctSwitchChoice = true;
                    } else {
                        while (!correctSwitchChoice) {
                            Console.WriteLine(p2.getNom() + ", votre pokémon " + p2.getCurrentPokemon().getName() + " n'est plus capable de se battre. Vous devez changer de Pokémon !");
                            displayTeamChange(p2);
                            p2Choice = getRandom(6);
                            if (p2.getTeam()[p2Choice].isAlive()) {
                                Console.Write("Reviens " + p2.getCurrentPokemon());
                                p2.setCurrentPokemonIndex(p2Choice);
                                correctSwitchChoice = true;
                                Console.WriteLine("À toi " + p2.getCurrentPokemon());
                            }
                        }
                    }
                }

                while (!currentTurnisValid) {
                    p2Choice = getRandom(3);
                    switch (p2Choice) {
                        case 0:
                            Console.WriteLine(p2.getNom() + " décide que " + p2.getCurrentPokemon().getName() + " doit attaquer en physique.");
                            p2.getCurrentPokemon().PhysAttack(p1.getCurrentPokemon());
                            currentTurnisValid = true;
                            break;
                        case 1:
                            Console.WriteLine(p2.getNom() + " décide que " + p2.getCurrentPokemon().getName() + " doit attaquer en spécial.");
                            p2.getCurrentPokemon().SpeAttack(p1.getCurrentPokemon());
                            currentTurnisValid = true;
                            break;
                        case 2:
                            Console.WriteLine(p2.getNom() + " décide que " + p2.getCurrentPokemon().getName() + " revenir.");
                            displayTeamChange(p2);
                            p2.setCurrentPokemonIndex(getRandom(6));
                            currentTurnisValid = true;
                            Console.WriteLine("À toi " + p2.getCurrentPokemon());
                            break;
                        default:
                            Console.WriteLine("Erreur de saisie. Veuillez recommencer.");
                            break;
                    }
                }

                currentTurnisValid = false;

                if (!p1.getCurrentPokemon().isAlive()) {
                    bool correctSwitchChoice = false;
                    if (p1.canStillFight()) {
                        isFighting = false;
                        Console.WriteLine("La partie est terminée. " + p2.getNom() + " a gagné !");
                        correctSwitchChoice = true;
                    } else {
                        while (!correctSwitchChoice) {
                            Console.WriteLine(p1.getNom() + ", votre pokémon " + p1.getCurrentPokemon().getName() + " n'est plus capable de se battre. Vous devez changer de Pokémon !");
                            displayTeamChange(p1);
                            entreeStandard = Console.ReadLine();
                            entreeStandard = entreeStandard.Substring(0, 1);
                            if (StringIsValidIntFight(entreeStandard) && p1.getTeam()[int.Parse(entreeStandard)-1].isAlive()) {
                                Console.Write("Reviens " + p1.getCurrentPokemon());
                                p1.setCurrentPokemonIndex(int.Parse(entreeStandard)-1);
                                correctSwitchChoice = true;
                                Console.WriteLine("À toi " + p1.getCurrentPokemon());

                            } else {
                                Console.WriteLine("Vous ne pouvez pas switch avec ce pokémon. Merci d'entrer une valeur correcte.");
                            }
                        }
                    }
                }
            }
        }

        private static void displayCurrentPlayerTurn(Player p) {
            Console.WriteLine("C'est au tour de " + p.getNom() + " de combattre avec " + p.getCurrentPokemon().ToString() + " Type : " + p.getCurrentPokemon().getType() + ".");
            Console.WriteLine("Que souhaitez vous faire : ");
            Console.WriteLine("[1] Effectuer une attaque physique (ATK Physique "+ p.getCurrentPokemon().getATKPhys() +")");
            Console.WriteLine("[2] Effectuer une attaque spéciale (ATK Spéciale "+ p.getCurrentPokemon().getATKSpe() +")");
            Console.WriteLine("[3] Changer de pokémon");
        }

        private void displayTeamChange(Player p) {
            Console.WriteLine("Avec quel Pokémon switch ?");
            Console.WriteLine(DisplayTeam(p));

        }

        private int RandomMove() {
            return getRandom(3);
        }


        private static int getRandom(int max) {
            Random r = new Random();
            return r.Next(max);
        }

        private Nature GenerateNature() {
            switch (getRandom(25)) {
                case 0:
                    return Nature.BOLD;
                case 1:
                    return Nature.QUIRKY;
                case 2:
                    return Nature.BRAVE;
                case 3:
                    return Nature.CALM;
                case 4:
                    return Nature.QUIET;
                case 5:
                    return Nature.DOCILE;
                case 6:
                    return Nature.MILD;
                case 7:
                    return Nature.RASH;
                case 8:
                    return Nature.GENTLE;
                case 9:
                    return Nature.HARDY;
                case 10:
                    return Nature.JOLLY;
                case 11:
                    return Nature.LAX;
                case 12:
                    return Nature.IMPISH;
                case 13:
                    return Nature.SASSY;
                case 14:
                    return Nature.NAUGHTY;
                case 15:
                    return Nature.MODEST;
                case 16:
                    return Nature.NAIVE;
                case 17:
                    return Nature.HASTY;
                case 18:
                    return Nature.CAREFUL;
                case 19:
                    return Nature.BASHFUL;
                case 20:
                    return Nature.RELAXED;
                case 21:
                    return Nature.ADAMANT;
                case 22:
                    return Nature.SERIOUS;
                case 23:
                    return Nature.LONELY;
                case 24:
                    return Nature.TIMID;
                default:
                    return Nature.NULL;
            }
        }

        private Pokemon? CreatePokemon(String s) {
            String[] tab = s.Split(";");
            switch (tab[1]) {
                case "Normal":
                    return new PokemonNormal(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Grass":
                    return new PokemonGrass(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Fire":
                    return new PokemonFire(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Water":
                    return new PokemonWater(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Electric":
                    return new PokemonElectric(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Flying":
                    return new PokemonFlying(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Bug":
                    return new PokemonBug(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Rock":
                    return new PokemonRock(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Ground":
                    return new PokemonGround(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Psychic":
                    return new PokemonPsychic(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Poison":
                    return new PokemonPoison(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Ghost":
                    return new PokemonGhost(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Dark":
                    return new PokemonDark(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Steel":
                    return new PokemonSteel(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Fighting":
                    return new PokemonFighting(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Ice":
                    return new PokemonIce(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Dragon":
                    return new PokemonDragon(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                case "Fairy":
                    return new PokemonFairy(tab[0], int.Parse(tab[2]), int.Parse(tab[3]), int.Parse(tab[5]), int.Parse(tab[4]), int.Parse(tab[6]), int.Parse(tab[7]));
                default:
                    return null;
            }
        }

        private Character createCharacter(String s) {
            String[] tab = s.Split(";");
            List<Pokemon> pokemons = new List<Pokemon>();
            for(int i = 0; i < getRandom(30)+7; ++i) {
                pokemons.Add(Pkm.ElementAt(getRandom(1072)));
            }

            foreach (Pokemon pkm in pokemons) {
                Nature n = GenerateNature();
                pkm.SetNature(n);
                this.ApplyNatureEffect(n, pkm);
                this.ApplyPlayerEffect(tab[0], pkm);
            }

            return new Character(tab[0], tab[1] + ". " + tab[2], pokemons);
        }

        private void InitializePokemons() {
            String line;
            try {
                //Pass the file path and file name to the StreamReader constructor
                StreamReader srPkm = new StreamReader(this.Path + "Pokemon.csv");
                StreamReader srPerso = new StreamReader(this.Path + "Characters.csv");

                //Read the first line of text
                line = srPkm.ReadLine();
                //Continue to read until you reach end of file
                while (line != null) {
                    if (line[0] == '/') {
                        line = srPkm.ReadLine();
                    }
                    //write the line to console window
                    Pkm.Add(CreatePokemon(line));
                    //Read the next line
                    line = srPkm.ReadLine();
                }
                //close the file
                srPkm.Close();

                //Read the first line of text
                line = srPerso.ReadLine();
                //Continue to read until you reach end of file
                while (line != null) {
                    if (line[0] == '/') {
                        line = srPerso.ReadLine();
                    }
                    //write the line to console window
                    Characters.Add(createCharacter(line));
                    //Read the next line
                    line = srPerso.ReadLine();
                }
                //close the file
                srPkm.Close();


            } catch (Exception e) {
                Console.WriteLine("Exception: " + e.Message);
            }
        }

        private void AlterPokemonStat(String stat, double value, Pokemon p) {
            switch(stat) {
                case "PV":
                    p.setPV((int)Math.Floor(p.getPV() * value));
                    break;
                case "ATKPhys":
                    p.setATKPhys(((int)Math.Floor(p.getATKPhys() * value)));
                    break;
                case "ATKSpe":
                    p.setATKSpe(((int)Math.Floor(p.getATKSpe() * value)));
                    break;
                case "DEFPhys":
                    p.setDefPhys(((int)Math.Floor(p.getDEFPhys() * value)));
                    break;
                case "DEFSpe":
                    p.setDefSpe(((int)Math.Floor(p.getDEFSpe() * value)));
                    break;
                case "Speed":
                    p.setSpeed(((int)Math.Floor(p.getSpeed() * value)));
                    break;
                default:
                    break;

            }
        }

        private void ApplyNatureEffect(Enum nature, Pokemon p) {
            switch(nature) { //malus
                case Nature.BOLD:
                case Nature.CALM:
                case Nature.MODEST:
                case Nature.TIMID:
                    AlterPokemonStat("ATKPhys", 0.9, p);
                    break;
                case Nature.MILD:
                case Nature.GENTLE:
                case Nature.HASTY:
                case Nature.LONELY:
                    AlterPokemonStat("DEFPhys", 0.9, p);
                    break;
                case Nature.JOLLY:
                case Nature.IMPISH:
                case Nature.CAREFUL:
                case Nature.ADAMANT:
                    AlterPokemonStat("ATKSpe", 0.9, p);
                    break;
                case Nature.RASH:
                case Nature.LAX:
                case Nature.NAUGHTY:
                case Nature.NAIVE:
                    AlterPokemonStat("DEFSpe", 0.9, p);
                    break;
                case Nature.BRAVE:
                case Nature.QUIET:
                case Nature.SASSY:
                case Nature.RELAXED:
                    AlterPokemonStat("Speed", 0.9, p);
                    break;
                default:
                    break;
            }

            switch(nature) { //bonus
                case Nature.BRAVE:
                case Nature.NAUGHTY:
                case Nature.ADAMANT:
                case Nature.LONELY:
                    AlterPokemonStat("ATKPhys", 1.1, p);
                    break;
                case Nature.BOLD:
                case Nature.LAX:
                case Nature.IMPISH:
                case Nature.RELAXED:
                    AlterPokemonStat("DEFPhys", 1.1, p);
                    break;
                case Nature.QUIET:
                case Nature.MILD:
                case Nature.RASH:
                case Nature.MODEST:
                    AlterPokemonStat("ATKSpe", 1.1, p);
                    break;
                case Nature.CALM:
                case Nature.GENTLE:
                case Nature.SASSY:
                case Nature.CAREFUL:
                    AlterPokemonStat("DEFSpe", 1.1, p);
                    break;
                case Nature.JOLLY:
                case Nature.NAIVE:
                case Nature.HASTY:
                case Nature.TIMID:
                    AlterPokemonStat("Speed", 1.1, p);
                    break;
                default:
                    break;
            }
        }

        private void ApplyPlayerEffect(String playerName, Pokemon p) {
            switch(playerName) {
                case "Applejack":
                    AlterPokemonStat("PV", 1.05, p);
                    break;
                case "Rainbow Dash":
                    AlterPokemonStat("ATKPhys", 1.03, p);
                    break;
                case "Twilight Sparkle":
                    AlterPokemonStat("Speed", 1.07, p);
                    break;
                case "Pinkie Pie":
                    AlterPokemonStat("DEFPhys", 1.04, p);
                    break;
                case "Fluttershy":
                    AlterPokemonStat("DEFPhys", 0.96, p);
                    break;
                case "Izzy Moonbow":
                    AlterPokemonStat("PV", 1.05, p);
                    AlterPokemonStat("Speed", 0.95, p);
                    break;
                case "Zipp Storm":
                    AlterPokemonStat("PV", 0.95, p);
                    AlterPokemonStat("Speed", 1.05, p);
                    break;
                case "Sunny Starscout":
                    AlterPokemonStat("ATKSpe", 1.03, p);
                    break;
                case "Derpy Hooves":
                    AlterPokemonStat("PV", 0.95, p);
                    break;
                default:
                    break;
            }
        }

        private List<Pokemon> GetPokemons() {
            return this.Pkm;
        }

        private List<Character> GetCharacters() {
            return this.Characters;
        }
    }
}