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package mage.abilities.effects.common;
import mage.MageItem;
import mage.MageObject;
import mage.abilities.Ability;
import mage.abilities.effects.OneShotEffect;
import mage.constants.Outcome;
import mage.constants.Zone;
import mage.filter.FilterImpl;
import mage.filter.FilterInPlay;
import mage.filter.predicate.mageobject.FromSetPredicate;
import mage.game.Game;
import mage.game.stack.Spell;
import mage.players.Player;
import mage.target.Target;
import mage.target.TargetImpl;
import mage.util.TargetAddress;
import java.util.*;
/**
* @author duncant
* @param <T>
*/
public abstract class CopySpellForEachItCouldTargetEffect<T extends MageItem> extends OneShotEffect {
protected final FilterInPlay<T> filter;
public CopySpellForEachItCouldTargetEffect(FilterInPlay<T> filter) {
super(Outcome.Copy);
this.staticText = "copy the spell for each other " + filter.getMessage() + " that spell could target. Each copy targets a different one";
this.filter = filter;
}
public CopySpellForEachItCouldTargetEffect(final CopySpellForEachItCouldTargetEffect effect) {
super(effect);
this.filter = effect.filter;
}
protected abstract Spell getSpell(Game game, Ability source);
protected abstract Player getPlayer(Game game, Ability source);
protected abstract boolean changeTarget(Target target, Game game, Ability source);
protected abstract void modifyCopy(Spell copy, Game game, Ability source);
protected void modifyCopy(Spell copy, T newTarget, Game game, Ability source) {
modifyCopy(copy, game, source);
}
protected boolean okUUIDToCopyFor(UUID potentialTarget, Game game, Ability source, Spell spell) {
return true;
}
@Override
public boolean apply(Game game, Ability source) {
Player actingPlayer = getPlayer(game, source);
if (actingPlayer == null) {
return false;
}
Spell spell = getSpell(game, source);
if (spell != null) {
Set<TargetAddress> targetsToBeChanged = new HashSet<>();
boolean madeACopy = false;
for (TargetAddress addr : TargetAddress.walk(spell)) {
Target targetInstance = addr.getTarget(spell);
if (targetInstance.getNumberOfTargets() > 1) {
throw new UnsupportedOperationException("Changing Target instances with multiple targets is unsupported");
}
if (changeTarget(targetInstance, game, source)) {
targetsToBeChanged.add(addr);
}
}
if (targetsToBeChanged.size() < 1) {
return false;
}
// collect objects that can be targeted
Spell copy = spell.copySpell(source.getControllerId());
modifyCopy(copy, game, source);
Target sampleTarget = targetsToBeChanged.iterator().next().getTarget(copy);
sampleTarget.setNotTarget(true);
Map<UUID, Map<UUID, Spell>> playerTargetCopyMap = new HashMap<>();
for (UUID objId : sampleTarget.possibleTargets(actingPlayer.getId(), game)) {
MageItem obj = game.getObject(objId);
if (obj == null) {
obj = game.getPlayer(objId);
}
if (obj != null) {
copy = spell.copySpell(source.getControllerId());
try {
modifyCopy(copy, (T) obj, game, source);
if (!filter.match((T) obj, source.getSourceId(), actingPlayer.getId(), game)) {
continue;
}
} catch (ClassCastException e) {
continue;
}
boolean legal = true;
for (TargetAddress addr : targetsToBeChanged) {
// potential target must be legal for all targets that we're about to change
Target targetInstance = addr.getTarget(copy);
legal &= targetInstance.canTarget(actingPlayer.getId(), objId, addr.getSpellAbility(copy), game);
if (!legal) {
break;
}
// potential target must not be the thing that was targeted initially
targetInstance = addr.getTarget(spell);
legal &= !targetInstance.getTargets().contains(objId);
if (!legal) {
break;
}
}
legal &= okUUIDToCopyFor(objId, game, source, spell);
if (legal) {
for (TargetAddress addr : targetsToBeChanged) {
Target targetInstance = addr.getTarget(copy);
targetInstance.clearChosen();
targetInstance.add(objId, game);
}
if (!playerTargetCopyMap.containsKey(copy.getControllerId())) {
playerTargetCopyMap.put(copy.getControllerId(), new HashMap<>());
}
playerTargetCopyMap.get(copy.getControllerId()).put(objId, copy);
}
}
}
// allow the copies' controller to choose the order that they go on the stack
for (Player player : game.getPlayers().values()) {
if (playerTargetCopyMap.containsKey(player.getId())) {
Map<UUID, Spell> targetCopyMap = playerTargetCopyMap.get(player.getId());
if (targetCopyMap != null) {
while (!targetCopyMap.isEmpty()) {
FilterInPlay<T> setFilter = filter.copy();
setFilter.add(new FromSetPredicate(targetCopyMap.keySet()));
Target target = new TargetWithAdditionalFilter(sampleTarget, setFilter);
target.setMinNumberOfTargets(0);
target.setMaxNumberOfTargets(1);
target.setTargetName(filter.getMessage() + " that " + spell.getLogName() + " could target (" + targetCopyMap.size() + " remaining)");
// shortcut if there's only one possible target remaining
if (targetCopyMap.size() > 1
&& target.canChoose(spell.getId(), player.getId(), game)) {
player.choose(Outcome.Neutral, target, spell.getId(), game);
}
Collection<UUID> chosenIds = target.getTargets();
if (chosenIds.isEmpty()) {
chosenIds = targetCopyMap.keySet();
}
List<UUID> toDelete = new ArrayList<>();
for (UUID chosenId : chosenIds) {
Spell chosenCopy = targetCopyMap.get(chosenId);
if (chosenCopy != null) {
game.getStack().push(chosenCopy);
toDelete.add(chosenId);
madeACopy = true;
}
}
for (UUID idToDelete : toDelete) {
targetCopyMap.remove(idToDelete);
}
}
}
}
}
return madeACopy;
}
return false;
}
}
class CompoundFilter<T extends MageItem> extends FilterImpl<T> implements FilterInPlay<T> {
protected final FilterInPlay<T> filterA;
protected final FilterInPlay<T> filterB;
public CompoundFilter(String name) {
super(name);
this.filterA = null;
this.filterB = null;
}
public CompoundFilter(FilterInPlay<T> filterA, FilterInPlay<T> filterB, String name) {
super(name);
this.filterA = filterA;
this.filterB = filterB;
}
@Override
public boolean checkObjectClass(Object object) {
return true; // already checked in the filter classes itself
}
@Override
public boolean match(T obj, Game game) {
return (filterA == null
|| !filterA.match(obj, game))
&& (filterB == null
|| !filterB.match(obj, game));
}
@Override
public boolean match(T obj, UUID sourceId, UUID playerId, Game game) {
return (filterA == null
|| !filterA.match(obj, sourceId, playerId, game))
&& (filterB == null
|| !filterB.match(obj, sourceId, playerId, game));
}
@Override
public CompoundFilter copy() {
return new CompoundFilter(filterA == null ? null : filterA.copy(),
filterB == null ? null : filterB.copy(),
message);
}
}
class TargetWithAdditionalFilter<T extends MageItem> extends TargetImpl {
protected final FilterInPlay<T> additionalFilter;
protected final Target originalTarget;
public TargetWithAdditionalFilter(final TargetWithAdditionalFilter target) {
this(target.originalTarget, target.additionalFilter, false);
}
public TargetWithAdditionalFilter(Target originalTarget, FilterInPlay<T> additionalFilter) {
this(originalTarget, additionalFilter, false);
}
public TargetWithAdditionalFilter(Target originalTarget, FilterInPlay<T> additionalFilter, boolean notTarget) {
this.originalTarget = originalTarget.copy();
this.originalTarget.clearChosen();
this.targetName = originalTarget.getFilter().getMessage();
this.notTarget = notTarget;
this.additionalFilter = additionalFilter;
}
@Override
public Target getOriginalTarget() {
return originalTarget;
}
@Override
public int getNumberOfTargets() {
return originalTarget.getNumberOfTargets();
}
@Override
public int getMaxNumberOfTargets() {
return originalTarget.getMaxNumberOfTargets();
}
@Override
public void setMinNumberOfTargets(int minNumberOfTargets) {
originalTarget.setMinNumberOfTargets(minNumberOfTargets);
}
@Override
public void setMaxNumberOfTargets(int maxNumberOfTargets) {
originalTarget.setMaxNumberOfTargets(maxNumberOfTargets);
}
@Override
public Zone getZone() {
return originalTarget.getZone();
}
@Override
public boolean canTarget(UUID id, Game game) {
MageItem obj = game.getObject(id);
if (obj == null) {
obj = game.getPlayer(id);
}
try {
return obj != null
&& originalTarget.canTarget(id, game)
&& additionalFilter.match((T) obj, game);
} catch (ClassCastException e) {
return false;
}
}
@Override
public boolean canTarget(UUID id, Ability source, Game game) {
MageItem obj = game.getObject(id);
if (obj == null) {
obj = game.getPlayer(id);
}
try {
return obj != null
&& originalTarget.canTarget(id, source, game)
&& additionalFilter.match((T) obj, source.getSourceId(), source.getControllerId(), game);
} catch (ClassCastException e) {
return false;
}
}
@Override
public boolean canTarget(UUID controllerId, UUID id, Ability source, Game game) {
MageItem obj = game.getObject(id);
if (obj == null) {
obj = game.getPlayer(id);
}
try {
return obj != null
&& originalTarget.canTarget(controllerId, id, source, game)
&& additionalFilter.match((T) obj, source.getSourceId(), controllerId, game);
} catch (ClassCastException e) {
return false;
}
}
@Override
public FilterInPlay<T> getFilter() {
return new CompoundFilter((FilterInPlay<T>) originalTarget.getFilter(), additionalFilter, originalTarget.getFilter().getMessage());
}
@Override
public boolean canChoose(UUID sourceId, UUID sourceControllerId, Game game) {
int remainingTargets = getNumberOfTargets() - targets.size();
if (remainingTargets <= 0) {
return true;
}
int count = 0;
for (UUID objId : originalTarget.possibleTargets(sourceId, sourceControllerId, game)) {
MageItem obj = game.getObject(objId);
if (obj == null) {
obj = game.getPlayer(objId);
}
try {
if (!targets.containsKey(objId)
&& obj != null
&& additionalFilter.match((T) obj, sourceId, sourceControllerId, game)) {
count++;
if (count >= remainingTargets) {
return true;
}
}
} catch (ClassCastException e) {
}
}
return false;
}
@Override
public boolean canChoose(UUID sourceControllerId, Game game) {
int remainingTargets = getNumberOfTargets() - targets.size();
if (remainingTargets <= 0) {
return true;
}
int count = 0;
for (UUID objId : originalTarget.possibleTargets(sourceControllerId, game)) {
MageItem obj = game.getObject(objId);
if (obj == null) {
obj = game.getPlayer(objId);
}
try {
if (!targets.containsKey(objId)
&& obj != null
&& additionalFilter.match((T) obj, game)) {
count++;
if (count >= remainingTargets) {
return true;
}
}
} catch (ClassCastException e) {
}
}
return false;
}
@Override
public Set<UUID> possibleTargets(UUID sourceId, UUID sourceControllerId, Game game) {
Set<UUID> ret = new HashSet<>();
for (UUID id : originalTarget.possibleTargets(sourceId, sourceControllerId, game)) {
MageItem obj = game.getObject(id);
if (obj == null) {
obj = game.getPlayer(id);
}
try {
if (obj != null
&& additionalFilter.match((T) obj, sourceId, sourceControllerId, game)) {
ret.add(id);
}
} catch (ClassCastException e) {
}
}
return ret;
}
@Override
public Set<UUID> possibleTargets(UUID sourceControllerId, Game game) {
Set<UUID> ret = new HashSet<>();
for (UUID id : originalTarget.possibleTargets(sourceControllerId, game)) {
MageItem obj = game.getObject(id);
if (obj == null) {
obj = game.getPlayer(id);
}
try {
if (obj != null
&& additionalFilter.match((T) obj, game)) {
ret.add(id);
}
} catch (ClassCastException e) {
}
}
return ret;
}
@Override
public TargetWithAdditionalFilter copy() {
return new TargetWithAdditionalFilter(this);
}
@Override
public String getTargetedName(Game game) {
StringBuilder sb = new StringBuilder();
for (UUID targetId : getTargets()) {
MageObject object = game.getObject(targetId);
if (object != null) {
sb.append(object.getLogName()).append(' ');
} else {
Player player = game.getPlayer(targetId);
if (player != null) {
sb.append(player.getLogName()).append(' ');
}
}
}
return sb.toString();
}
}