/*
 *  Copyright (C) 2010-2013 JPEXS
 * 
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 * 
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 * 
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.jpexs.decompiler.flash.abc.avm2.instructions.other;

import com.jpexs.decompiler.flash.abc.ABC;
import com.jpexs.decompiler.flash.abc.avm2.AVM2Code;
import com.jpexs.decompiler.flash.abc.avm2.ConstantPool;
import com.jpexs.decompiler.flash.abc.avm2.instructions.AVM2Instruction;
import com.jpexs.decompiler.flash.abc.avm2.instructions.InstructionDefinition;
import com.jpexs.decompiler.flash.abc.avm2.instructions.SetTypeIns;
import com.jpexs.decompiler.flash.abc.avm2.model.AVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.DecrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.FullMultinameAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.GetPropertyAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.IncrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.LocalRegAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.PostDecrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.PostIncrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.SetPropertyAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.operations.PreDecrementAVM2Item;
import com.jpexs.decompiler.flash.abc.avm2.model.operations.PreIncrementAVM2Item;
import com.jpexs.decompiler.flash.abc.types.MethodInfo;
import com.jpexs.decompiler.graph.GraphTargetItem;
import java.util.HashMap;
import java.util.List;
import java.util.Stack;

public class SetPropertyIns extends InstructionDefinition implements SetTypeIns {

    public SetPropertyIns() {
        super(0x61, "setproperty", new int[]{AVM2Code.DAT_MULTINAME_INDEX});
    }

    @Override
    public void translate(boolean isStatic, int scriptIndex, int classIndex, java.util.HashMap<Integer, GraphTargetItem> localRegs, Stack<GraphTargetItem> stack, java.util.Stack<GraphTargetItem> scopeStack, ConstantPool constants, AVM2Instruction ins, MethodInfo[] method_info, List<GraphTargetItem> output, com.jpexs.decompiler.flash.abc.types.MethodBody body, com.jpexs.decompiler.flash.abc.ABC abc, HashMap<Integer, String> localRegNames, List<String> fullyQualifiedNames, String path, HashMap<Integer, Integer> localRegsAssignmentIps, int ip, HashMap<Integer, List<Integer>> refs, AVM2Code code) {
        int multinameIndex = ins.operands[0];
        GraphTargetItem value = (GraphTargetItem) stack.pop();
        FullMultinameAVM2Item multiname = resolveMultiname(stack, constants, multinameIndex, ins);
        GraphTargetItem obj = (GraphTargetItem) stack.pop();
        if (value.getThroughDuplicate().getThroughRegister().getThroughDuplicate() instanceof IncrementAVM2Item) {
            GraphTargetItem inside = ((IncrementAVM2Item) value.getThroughDuplicate().getThroughRegister().getThroughDuplicate()).value.getThroughRegister().getNotCoerced().getThroughDuplicate();
            if (inside instanceof GetPropertyAVM2Item) {
                GetPropertyAVM2Item insideProp = ((GetPropertyAVM2Item) inside);
                if (insideProp.propertyName.compareSame(multiname)) {
                    GraphTargetItem insideObj = obj.getThroughDuplicate();
                    if (insideObj instanceof LocalRegAVM2Item) {
                        if (((LocalRegAVM2Item) insideObj).computedValue != null) {
                            insideObj = ((LocalRegAVM2Item) insideObj).computedValue.getThroughNotCompilable().getThroughDuplicate();
                        }
                    }
                    if (insideProp.object.getThroughDuplicate() == insideObj) {
                        if (stack.size() > 0) {
                            GraphTargetItem top = stack.peek().getNotCoerced().getThroughDuplicate();
                            if (top == insideProp) {
                                stack.pop();
                                stack.push(new PostIncrementAVM2Item(ins, insideProp));
                            } else if ((top instanceof IncrementAVM2Item) && (((IncrementAVM2Item) top).value == inside)) {
                                stack.pop();
                                stack.push(new PreIncrementAVM2Item(ins, insideProp));
                            } else {
                                output.add(new PostIncrementAVM2Item(ins, insideProp));
                            }
                        } else {
                            output.add(new PostIncrementAVM2Item(ins, insideProp));
                        }
                        return;
                    }
                }
            }
        }

        if (value.getThroughDuplicate().getThroughRegister().getThroughDuplicate() instanceof DecrementAVM2Item) {
            GraphTargetItem inside = ((DecrementAVM2Item) value.getThroughDuplicate().getThroughRegister().getThroughDuplicate()).value.getThroughRegister().getNotCoerced().getThroughDuplicate();
            if (inside instanceof GetPropertyAVM2Item) {
                GetPropertyAVM2Item insideProp = ((GetPropertyAVM2Item) inside);
                if (insideProp.propertyName.compareSame(multiname)) {
                    GraphTargetItem insideObj = obj.getThroughDuplicate();
                    if (insideObj instanceof LocalRegAVM2Item) {
                        if (((LocalRegAVM2Item) insideObj).computedValue != null) {
                            insideObj = ((LocalRegAVM2Item) insideObj).computedValue.getThroughNotCompilable().getThroughDuplicate();
                        }
                    }
                    if (insideProp.object.getThroughDuplicate() == insideObj) {
                        if (stack.size() > 0) {
                            GraphTargetItem top = stack.peek().getNotCoerced().getThroughDuplicate();
                            if (top == insideProp) {
                                stack.pop();
                                stack.push(new PostDecrementAVM2Item(ins, insideProp));
                            } else if ((top instanceof DecrementAVM2Item) && (((DecrementAVM2Item) top).value == inside)) {
                                stack.pop();
                                stack.push(new PreDecrementAVM2Item(ins, insideProp));
                            } else {
                                output.add(new PostDecrementAVM2Item(ins, insideProp));
                            }
                        } else {
                            output.add(new PostDecrementAVM2Item(ins, insideProp));
                        }
                        return;
                    }
                }
            }
        }
        output.add(new SetPropertyAVM2Item(ins, obj, multiname, value));
    }

    @Override
    public String getObject(Stack<AVM2Item> stack, ABC abc, AVM2Instruction ins, List<AVM2Item> output, com.jpexs.decompiler.flash.abc.types.MethodBody body, HashMap<Integer, String> localRegNames, List<String> fullyQualifiedNames) {
        int multinameIndex = ins.operands[0];
        String multiname = resolveMultinameNoPop(0, stack, abc.constants, multinameIndex, ins, fullyQualifiedNames);
        GraphTargetItem obj = stack.get(1 + resolvedCount(abc.constants, multinameIndex)); //pod vrcholem
        if ((!obj.toString().equals(""))) {
            multiname = "." + multiname;
        }
        return obj + multiname;
    }

    @Override
    public int getStackDelta(AVM2Instruction ins, ABC abc) {
        int ret = -2;
        int multinameIndex = ins.operands[0];
        if (abc.constants.constant_multiname[multinameIndex].needsName()) {
            ret--;
        }
        if (abc.constants.constant_multiname[multinameIndex].needsNs()) {
            ret--;
        }
        return ret;
    }
}
