/*
 * Minecraft Development for IntelliJ
 *
 * https://mcdev.io/
 *
 * Copyright (C) 2024 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.translations.index
 
import com.demonwav.mcdev.translations.Translation
import com.demonwav.mcdev.translations.TranslationConstants
import com.demonwav.mcdev.translations.TranslationFiles
import com.demonwav.mcdev.util.mcDomain
import com.intellij.openapi.project.Project
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.PsiFile
import com.intellij.psi.search.GlobalSearchScope
import com.intellij.util.indexing.DataIndexer
import com.intellij.util.indexing.FileBasedIndex
import com.intellij.util.indexing.FileBasedIndexExtension
import com.intellij.util.indexing.FileContent
import com.intellij.util.indexing.ID
import com.intellij.util.io.DataExternalizer
import com.intellij.util.io.EnumeratorStringDescriptor
import com.intellij.util.io.KeyDescriptor
import java.io.DataInput
import java.io.DataOutput
 
class TranslationIndex : FileBasedIndexExtension<String, TranslationIndexEntry>() {
    override fun getName() = NAME
 
    override fun getVersion() = 6
 
    override fun dependsOnFileContent() = true
 
    override fun getValueExternalizer(): DataExternalizer<TranslationIndexEntry> = ValueExternalizer
 
    override fun getIndexer(): DataIndexer<String, TranslationIndexEntry, FileContent> = Indexer
 
    override fun getInputFilter(): FileBasedIndex.InputFilter = TranslationInputFilter
 
    override fun getKeyDescriptor(): KeyDescriptor<String> = EnumeratorStringDescriptor.INSTANCE
 
    companion object {
        val NAME = ID.create<String, TranslationIndexEntry>("TranslationIndex")
 
        fun getAllDefaultTranslations(project: Project, domain: String? = null) =
            getAllDefaultEntries(project, domain).flatten()
 
        fun getProjectDefaultTranslations(project: Project, domain: String? = null) =
            getProjectDefaultEntries(project, domain).flatten()
 
        fun hasDefaultTranslations(project: Project, domain: String? = null): Boolean {
            return !FileBasedIndex.getInstance()
                .processValues(
                    NAME,
                    TranslationConstants.DEFAULT_LOCALE,
                    null,
                    { _, entry -> entry.sourceDomain != domain },
                    GlobalSearchScope.projectScope(project)
                )
        }
 
        fun getTranslations(project: Project, file: VirtualFile): Sequence<Translation> {
            return getEntries(
                GlobalSearchScope.fileScope(project, file),
                TranslationFiles.getLocale(file) ?: return emptySequence(),
                file.mcDomain,
            ).flatten()
        }
 
        fun getTranslations(file: PsiFile): Sequence<Translation> {
            val virtualFile = file.virtualFile
            return getEntries(
                GlobalSearchScope.fileScope(file),
                TranslationFiles.getLocale(virtualFile) ?: return emptySequence(),
                virtualFile.mcDomain,
            ).flatten()
        }
 
        fun getAllDefaultEntries(project: Project, domain: String? = null) =
            getEntries(GlobalSearchScope.allScope(project), TranslationConstants.DEFAULT_LOCALE, domain)
 
        private fun getProjectDefaultEntries(project: Project, domain: String? = null) =
            getEntries(GlobalSearchScope.projectScope(project), TranslationConstants.DEFAULT_LOCALE, domain)
 
        fun getEntries(scope: GlobalSearchScope, locale: String, domain: String? = null) =
            FileBasedIndex.getInstance().getValues(NAME, locale, scope,).asSequence()
                .filter { domain == null || it.sourceDomain == domain }
 
        private fun Sequence<TranslationIndexEntry>.flatten() = this.flatMap { it.translations.asSequence() }
    }
 
    private object ValueExternalizer : DataExternalizer<TranslationIndexEntry> {
        override fun save(output: DataOutput, value: TranslationIndexEntry) {
            output.writeUTF(value.sourceDomain)
            val translations = value.translations
            output.writeInt(translations.size)
            for ((key, translation) in translations) {
                output.writeUTF(key)
                output.writeUTF(translation)
            }
        }
 
        override fun read(input: DataInput): TranslationIndexEntry {
            val sourceDomain = input.readUTF()
            val translations = (0 until input.readInt()).map { Translation(input.readUTF(), input.readUTF()) }
            return TranslationIndexEntry(sourceDomain, translations)
        }
    }
 
    private object Indexer : DataIndexer<String, TranslationIndexEntry, FileContent> {
        override fun map(inputData: FileContent): MutableMap<String, TranslationIndexEntry> {
            val domain = inputData.file.mcDomain ?: return mutableMapOf()
            val entry = TranslationProvider.INSTANCES[inputData.fileType.name]?.map(domain, inputData)
                ?: return mutableMapOf()
            val locale = TranslationFiles.getLocale(inputData.file) ?: return mutableMapOf()
            return mutableMapOf(locale to entry)
        }
    }
}

      

        
/*
 * Minecraft Development for IntelliJ
 *
 * https://mcdev.io/
 *
 * Copyright (C) 2025 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.translations.index
 
import com.demonwav.mcdev.translations.Translation
import com.demonwav.mcdev.translations.TranslationConstants
import com.demonwav.mcdev.translations.TranslationFiles
import com.demonwav.mcdev.util.mcDomain
import com.intellij.openapi.project.Project
import com.intellij.openapi.vfs.VirtualFile
import com.intellij.psi.PsiFile
import com.intellij.psi.search.GlobalSearchScope
import com.intellij.util.indexing.DataIndexer
import com.intellij.util.indexing.FileBasedIndex
import com.intellij.util.indexing.FileBasedIndexExtension
import com.intellij.util.indexing.FileContent
import com.intellij.util.indexing.ID
import com.intellij.util.io.DataExternalizer
import com.intellij.util.io.EnumeratorStringDescriptor
import com.intellij.util.io.KeyDescriptor
import java.io.DataInput
import java.io.DataOutput
 
class TranslationIndex : FileBasedIndexExtension<String, TranslationIndexEntry>() {
    override fun getName() = NAME
 
    override fun getVersion() = 6
 
    override fun dependsOnFileContent() = true
 
    override fun getValueExternalizer(): DataExternalizer<TranslationIndexEntry> = ValueExternalizer
 
    override fun getIndexer(): DataIndexer<String, TranslationIndexEntry, FileContent> = Indexer
 
    override fun getInputFilter(): FileBasedIndex.InputFilter = TranslationInputFilter
 
    override fun getKeyDescriptor(): KeyDescriptor<String> = EnumeratorStringDescriptor.INSTANCE
 
    companion object {
        val NAME = ID.create<String, TranslationIndexEntry>("TranslationIndex")
 
        fun getAllDefaultTranslations(project: Project, domain: String? = null) =
            getAllDefaultEntries(project, domain).flatten()
 
        fun getProjectDefaultTranslations(project: Project, domain: String? = null) =
            getProjectDefaultEntries(project, domain).flatten()
 
        fun hasDefaultTranslations(project: Project, domain: String? = null): Boolean {
            return !FileBasedIndex.getInstance()
                .processValues(
                    NAME,
                    TranslationConstants.DEFAULT_LOCALE,
                    null,
                    { _, entry -> entry.sourceDomain != domain },
                    GlobalSearchScope.projectScope(project)
                )
        }
 
        fun getTranslations(project: Project, file: VirtualFile): Sequence<Translation> {
            return getEntries(
                GlobalSearchScope.fileScope(project, file),
                TranslationFiles.getLocale(file) ?: return emptySequence(),
                file.mcDomain,
            ).flatten()
        }
 
        fun getTranslations(file: PsiFile): Sequence<Translation> {
            val virtualFile = file.virtualFile
            return getEntries(
                GlobalSearchScope.fileScope(file),
                TranslationFiles.getLocale(virtualFile) ?: return emptySequence(),
                virtualFile.mcDomain,
            ).flatten()
        }
 
        fun getAllDefaultEntries(project: Project, domain: String? = null) =
            getEntries(GlobalSearchScope.allScope(project), TranslationConstants.DEFAULT_LOCALE, domain)
 
        private fun getProjectDefaultEntries(project: Project, domain: String? = null) =
            getEntries(GlobalSearchScope.projectScope(project), TranslationConstants.DEFAULT_LOCALE, domain)
 
        fun getEntries(scope: GlobalSearchScope, locale: String, domain: String? = null) =
            FileBasedIndex.getInstance().getValues(NAME, locale, scope,).asSequence()
                .filter { domain == null || it.sourceDomain == domain }
 
        private fun Sequence<TranslationIndexEntry>.flatten() = this.flatMap { it.translations.asSequence() }
    }
 
    private object ValueExternalizer : DataExternalizer<TranslationIndexEntry> {
        override fun save(output: DataOutput, value: TranslationIndexEntry) {
            output.writeUTF(value.sourceDomain)
            val translations = value.translations
            output.writeInt(translations.size)
            for ((key, translation) in translations) {
                output.writeUTF(key)
                output.writeUTF(translation)
            }
        }
 
        override fun read(input: DataInput): TranslationIndexEntry {
            val sourceDomain = input.readUTF()
            val translations = (0 until input.readInt()).map { Translation(input.readUTF(), input.readUTF()) }
            return TranslationIndexEntry(sourceDomain, translations)
        }
    }
 
    private object Indexer : DataIndexer<String, TranslationIndexEntry, FileContent> {
        override fun map(inputData: FileContent): MutableMap<String, TranslationIndexEntry> {
            val domain = inputData.file.mcDomain ?: return mutableMapOf()
            val entry = TranslationProvider.INSTANCES[inputData.fileType.name]?.map(domain, inputData)
                ?: return mutableMapOf()
            val locale = TranslationFiles.getLocale(inputData.file) ?: return mutableMapOf()
            return mutableMapOf(locale to entry)
        }
    }
}