/*
 * Copyright 2023-2024 JetBrains s.r.o. and Kotlin Programming Language contributors.
 * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
 */

// Copyright (C) 2020-2023 Brian Norman
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package org.jetbrains.kotlin.powerassert

import org.jetbrains.kotlin.backend.common.extensions.IrGenerationExtension
import org.jetbrains.kotlin.compiler.plugin.CompilerPluginRegistrar
import org.jetbrains.kotlin.config.CompilerConfiguration
import org.jetbrains.kotlin.config.CompilerConfigurationKey
import org.jetbrains.kotlin.name.FqName

val KEY_FUNCTIONS = CompilerConfigurationKey<List<String>>("fully-qualified function names")

class PowerAssertCompilerPluginRegistrar(
    private val functions: Set<FqName>,
) : CompilerPluginRegistrar() {
    @Suppress("unused")
    constructor() : this(emptySet()) // Used by service loader

    override val supportsK2: Boolean = true

    override fun ExtensionStorage.registerExtensions(configuration: CompilerConfiguration) {
        val functions = configuration[KEY_FUNCTIONS]?.map { FqName(it) } ?: functions
        if (functions.isEmpty()) return

        IrGenerationExtension.registerExtension(
            PowerAssertIrGenerationExtension(
                PowerAssertConfiguration(
                    configuration,
                    functions.toSet()
                )
            )
        )
    }
}
