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//      Magicbane Emulator Project © 2013 - 2024
//                www.magicbane.com

package engine.wpak;

import engine.gameManager.ConfigManager;
import engine.mbEnums;
import engine.util.Hasher;
import engine.wpak.data.Effect;
import engine.wpak.data.PowerAction;
import engine.wpak.data.StatTransfer;
import engine.wpak.data.TrackEntry;
import engine.wpakpowers.WpakPowerManager;
import org.pmw.tinylog.Logger;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class PowerActionParser {
    private static final Pattern STRSPLIT_REGEX = Pattern.compile("([^\"]\\S*|\"[^\"]*\")\\s*");
    private static final Pattern POWER_ACTION_REGEX = Pattern.compile("(?<=POWERACTIONBEGIN)(.+?)(?=POWERACTIONEND)", Pattern.DOTALL);
    private static final String powerActionPath = ConfigManager.DEFAULT_DATA_DIR + "wpak/PowerActions.cfg";

    public static void parseWpakFile() {

        // Read .wpak file from disk

        byte[] fileData;

        try {
            fileData = Files.readAllBytes(Paths.get(powerActionPath));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

        String fileContents = new String(fileData);

        // Iterate over power entries from .wpak data

        Matcher matcher = POWER_ACTION_REGEX.matcher(fileContents);

        while (matcher.find()) {

            PowerAction powerAction = parsePowerActionEntry(matcher.group().trim());
            WpakPowerManager.power_actions.put(Hasher.SBStringHash(powerAction.action_id),powerAction);
        }
    }

    private static PowerAction parsePowerActionEntry(String powerActionData) {

        PowerAction powerAction = new PowerAction();
        Effect effect;
        StatTransfer statTransfer;
        TrackEntry trackEntry;

        // Remove all lines that contain a # and leading/trailing blank lines

        powerActionData = powerActionData.replaceAll("(?m)^(\\s*#.*|\\s*)\r?\n?", "").trim();

        List<String> lineData = Arrays.asList(powerActionData.split("\n"));

        // Parse effect entry header

        Iterator<String> entryIterator = lineData.iterator();
        String headerLine = entryIterator.next();
        List<String> headerData = new ArrayList<>();

        Matcher matcher = STRSPLIT_REGEX.matcher(headerLine.trim());

        while (matcher.find())
            headerData.add(matcher.group().trim());

        Iterator<String> headerIterator = headerData.iterator();
        powerAction.action_id = headerIterator.next();
        powerAction.action_type = headerIterator.next();

        switch (powerAction.action_type) {
            case "RemoveEffect":
                effect = new Effect();
                effect.effect_id = headerIterator.next();
                powerAction.effects.add(effect);
                break;
            case "CreateMob":
                powerAction.petRace = Integer.parseInt(headerIterator.next());
                powerAction.petLevel = Integer.parseInt(headerIterator.next());
                break;
            case "DamageOverTime":
                effect = new Effect();
                effect.effect_id = headerIterator.next();
                effect.cycleDuration = Integer.parseInt(headerIterator.next());
                effect.cycleDelay = Integer.parseInt(headerIterator.next());
                powerAction.effects.add(effect);
                break;
            case "ApplyEffects":
                int level = Integer.parseInt(headerIterator.next());

                while (headerIterator.hasNext()) {
                    effect = new Effect();
                    effect.level = level;
                    effect.effect_id = headerIterator.next();
                    powerAction.effects.add(effect);
                }
                break;
            case "Transform":
            case "Invis":
            case "ApplyEffect":
            case "DeferredPower":
            case "DirectDamage":
            case "SpireDisable":
                while (headerIterator.hasNext()) {
                    effect = new Effect();
                    effect.effect_id = headerIterator.next();

                    // Some applyEffect entries are naked withot a level

                    if (headerData.size() > 3)
                        effect.level = Integer.parseInt(headerIterator.next());

                    powerAction.effects.add(effect);
                }
                break;
            case "TransferStat":
                statTransfer = new StatTransfer();
                statTransfer.fromStat = mbEnums.CostType.valueOf(headerIterator.next());
                statTransfer.toStat = mbEnums.CostType.valueOf(headerIterator.next());
                statTransfer.ramp = Float.parseFloat(headerIterator.next());
                statTransfer.rampCurve = mbEnums.CompoundCurveType.valueOf(headerIterator.next());
                statTransfer.efficiency = Float.parseFloat(headerIterator.next());
                statTransfer.efficiencyCurve = mbEnums.CompoundCurveType.valueOf(headerIterator.next());
                statTransfer.fromStatBool = Boolean.parseBoolean(headerIterator.next());
                statTransfer.isDrain = Boolean.parseBoolean(headerIterator.next());
                powerAction.statTransfer = statTransfer;
                break;
            case "TransferStatOT":
                statTransfer = new StatTransfer();
                statTransfer.fromStat = mbEnums.CostType.valueOf(headerIterator.next());
                statTransfer.toStat = mbEnums.CostType.valueOf(headerIterator.next());
                statTransfer.ramp = Float.parseFloat(headerIterator.next());
                statTransfer.rampCurve = mbEnums.CompoundCurveType.valueOf(headerIterator.next());
                statTransfer.efficiency = Float.parseFloat(headerIterator.next());
                statTransfer.efficiencyCurve = mbEnums.CompoundCurveType.valueOf(headerIterator.next());
                statTransfer.fromStatBool = Boolean.parseBoolean(headerIterator.next());
                statTransfer.isDrain = Boolean.parseBoolean(headerIterator.next());
                statTransfer.transfer_action = headerIterator.next();
                statTransfer.transfer_ticks = Integer.parseInt(headerIterator.next());
                powerAction.statTransfer = statTransfer;
                break;
            case "Charm":
                effect = new Effect();
                effect.effect_id = headerIterator.next();
                effect.level = Integer.parseInt(headerIterator.next());
                effect.type = headerIterator.next();
                powerAction.effects.add(effect);
                break;
            case "Block":
                effect = new Effect();
                effect.effect_id = headerIterator.next();
                effect.level = Integer.parseInt(headerIterator.next());
                powerAction.effects.add(effect);
                break;
            case "Resurrect":
                powerAction.ramp = Integer.parseInt(headerIterator.next());
                break;
            case "SetItemFlag":
                powerAction.itemFlag = mbEnums.ItemFlags.valueOf(headerIterator.next());
                break;
            case "Track":
                trackEntry = new TrackEntry();
                trackEntry.action_id = headerIterator.next();
                trackEntry.trackPlayer = Boolean.parseBoolean(headerIterator.next());
                trackEntry.trackCorpse = Boolean.parseBoolean(headerIterator.next());
                trackEntry.filter = mbEnums.MonsterType.valueOf(headerIterator.next());
                trackEntry.min = Integer.parseInt(headerIterator.next());
                trackEntry.max = Integer.parseInt(headerIterator.next());
                powerAction.trackEntry = trackEntry;
                break;
            case "Teleport":
                if (headerIterator.hasNext())
                    powerAction.ignoreNoTeleSpire = Boolean.parseBoolean(headerIterator.next());
                break;
            case "Recall": // No arguments for these tags or not parsed
            case "Summon":
            case "TreeChoke":
            case "SimpleDamage":
            case "MobRecall": // One argument always zero
            case "ClearAggro":
            case "ClearNearbyAggro":
            case "Peek":
            case "ClaimMine":
            case "RunegateTeleport":
            case "Steal":
                break;
            default:
                Logger.error("Unhandled type " + powerAction.action_type + " for Pow4erAction: " + powerAction.action_id);
                break;
        }

        // Process key value pairs after header

        while (entryIterator.hasNext()) {
            String lineValue = entryIterator.next();
            List<String> lineValues = Arrays.asList(lineValue.split("="));
            String key = lineValues.get(0).trim();
            List<String> arguments;

            switch (key) {
                case "BODYPARTS":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));

                    for (String bodyPart : arguments)
                        powerAction.bodyParts.add(Integer.parseInt(bodyPart));
                    break;
                case "FEMALEBODYPARTS":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));

                    for (String bodyPart : arguments)
                        powerAction.femaleBodyParts.add(Integer.parseInt(bodyPart));
                    break;
                case "SCALEFACTOR":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));

                    for (String scaleFactor : arguments)
                        powerAction.scaleFactor.add(Float.parseFloat(scaleFactor));
                    break;
                case "ISRESISTABLE":
                    powerAction.isResistible = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "ISAGGRESSIVE":
                    powerAction.isAggressive = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "BLADETRAILS":
                    powerAction.bladeTrails = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "SHOULDSHOWWEAPONS":
                    powerAction.shouldShowWeapons = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "SHOULDSHOWARMOR":
                    powerAction.shouldShowArmor = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "APPLYEFFECTBLANK":
                    powerAction.applyEffectBlank = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "WEAROFFEFFECTBLANK":
                    powerAction.wearOffEffectBlank = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "ATTACKANIMS":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));

                    for (String animation : arguments)
                        powerAction.attackAnimations.add(Integer.parseInt(animation));
                    break;
                case "REMOVEALL":
                    powerAction.removeAll = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "EFFECTID":
                    effect = new Effect();
                    effect.effect_id = lineValues.get(1).trim();
                    powerAction.effects.add(effect);
                    break;
                case "LEVELCAP":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));
                    powerAction.ramp = Integer.parseInt(arguments.get(0));

                    if (arguments.size() > 1)  // Not all level caps have a curve
                        powerAction.rampCurve = mbEnums.CompoundCurveType.valueOf(arguments.get(1));
                    break;
                case "CLEARAGGRO":
                    powerAction.clearAggro = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "TARGETBECOMESPET":
                    powerAction.targetBecomesPet = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "DESTROYOLDPET":
                    powerAction.destroyOldPet = Boolean.parseBoolean(lineValues.get(1).trim());
                    break;
                case "DAMAGETYPE":
                    powerAction.damageType = mbEnums.DamageType.valueOf(lineValues.get(1).trim().toUpperCase());
                    break;
                case "ROOTFSMID":
                    powerAction.rootFsmID = mbEnums.MobBehaviourType.valueOf(lineValues.get(1).trim());
                    break;
                case "SPLASHDAMAGE":
                    arguments = Arrays.asList(lineValues.get(1).trim().split("\\s+"));
                    powerAction.splashDamageMin = Integer.parseInt(arguments.get(0));
                    powerAction.splashDamageMax = Integer.parseInt(arguments.get(1));
                    break;
                case "APPLYEFFECTOTHER":
                case "APPLYEFFECTSELF":
                case "WEAROFFEFFECTOTHER": // Keys not parsed go here.
                case "WEAROFFEFFECTSELF":
                    break;
                default:
                    Logger.error("Unhandled variable type:" + key + " for powerAction: " + powerAction.action_id);
            }
        }
        return powerAction;
    }
}