/*
 * Minecraft Development for IntelliJ
 *
 * https://mcdev.io/
 *
 * Copyright (C) 2023 minecraft-dev
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation, version 3.0 only.
 *
 * 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 Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
package com.demonwav.mcdev.platform.mixin.handlers.mixinextras
 
import com.demonwav.mcdev.platform.mixin.inspection.injector.ParameterGroup
import com.intellij.psi.PsiAnnotation
import com.intellij.psi.PsiType
import org.objectweb.asm.Opcodes
import org.objectweb.asm.tree.AbstractInsnNode
import org.objectweb.asm.tree.ClassNode
import org.objectweb.asm.tree.MethodNode
 
class ModifyReceiverHandler : MixinExtrasInjectorAnnotationHandler() {
    override val supportedInstructionTypes = listOf(
        InstructionType.METHOD_CALL, InstructionType.FIELD_GET, InstructionType.FIELD_SET
    )
 
    override fun extraTargetRestrictions(insn: AbstractInsnNode) = when (insn.opcode) {
        Opcodes.INVOKEVIRTUAL, Opcodes.INVOKESPECIAL, Opcodes.INVOKEINTERFACE,
        Opcodes.GETFIELD, Opcodes.PUTFIELD -> true
 
        else -> false
    }
 
    override fun expectedMethodSignature(
        annotation: PsiAnnotation,
        targetClass: ClassNode,
        targetMethod: MethodNode,
        insn: AbstractInsnNode
    ): Pair<ParameterGroup, PsiType>? {
        val params = getPsiParameters(insn, targetClass, annotation) ?: return null
        return ParameterGroup(params) to params[0].type
    }
}