package ruscz.game.gameOfProd.Scripts;

import ruscz.game.gameOfProd.Battle.Battle;
import ruscz.game.gameOfProd.Battle.BattlePerson;
import ruscz.game.gameOfProd.Inventory.InventoryManager;
import ruscz.game.gameOfProd.Inventory.Item;
import ruscz.game.gameOfProd.Inventory.ItemAction;

/**
 * This class parses text form player into a set of commands
 * This class is currently not being used in our game, though it will be implemented at a later date
 */
public class TextParser {
    private String textToParse;
    private Battle battle;
    private BattlePerson person;
    private BattlePerson target;
    private Item item;
    private String action;

    /**
     * @param text is input from player
     * Separates incoming text into parts and passes them on to be parsed further
     */
    public void parseBattleText(String text) {
        textToParse = text;
        String person = textToParse.toLowerCase().substring(0, textToParse.indexOf("."));
        parseBattlePerson(person);
        String target = textToParse.toLowerCase().substring(textToParse.indexOf("(") + 1, textToParse.indexOf(")"));
        parseBattleTarget(target);
        String action = textToParse.toLowerCase().substring(textToParse.indexOf(".") + 1, textToParse.indexOf("("));
        parseBattleAction(action);
    }

    /**
     * @param personText is name of battle person
     * Finds battle person based on text input and sets it as actor of action
     */
    private void parseBattlePerson(String personText) {
        switch (personText) {
            case "self":
            case "hero":
            case "me":
                person = battle.getHeroes().getFirst();
                break;
            case "enemy":
            case "monster":
                person = battle.getEnemies().getFirst();
                break;
        }
    }

    /**
     * @param action is name of action
     * Calls corresponding action to user input
     */
    private void parseBattleAction(String action) {
        this.action = action;
        switch (action) {
            case "attack":
                person.attack(target);
            case "use":
                ItemAction itemAction = item.getItemAction();
                switch (itemAction) {
                    case HEAL:
                        person.heal(item.getMultiplicity());
                        break;
                    case DEFENCE:
                        person.addDefence(item.getMultiplicity());
                        break;
                    case STRENGTH:
                        person.addStrength(item.getMultiplicity());
                        break;
                    case MANA:
                        person.addMana(item.getMultiplicity());
                        break;
                }
                break;
            case "block":
            case "defend":
                person.block();
                break;
            case "run":
            case "runaway":
                person.runAway();
        }
    }

    /**
     * @param targetText name of battle person
     * Finds battle person based on text input and sets it as target of action
     */
    private void parseBattleTarget(String targetText) {
        switch (targetText) {
            case "self":
            case "hero":
            case "me":
                target = battle.getHeroes().getFirst();
                break;
            case "enemy":
                target = battle.getEnemies().getFirst();
                break;
            default:
                item = InventoryManager.findItemByName(targetText);
        }
    }
}