/*
 * 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.creator.custom.derivation
 
import com.demonwav.mcdev.creator.custom.PropertyDerivation
import com.demonwav.mcdev.creator.custom.TemplateValidationReporter
import com.demonwav.mcdev.creator.custom.types.CreatorProperty
import com.demonwav.mcdev.util.SemanticVersion
 
class ExtractPaperApiVersionPropertyDerivation : ExtractVersionMajorMinorPropertyDerivation() {
 
    override fun derive(parentValues: List<Any?>): Any {
        val from = parentValues[0] as SemanticVersion
        if (from.parts.size < 2) {
            return SemanticVersion(emptyList())
        }
 
        if (from.parts.size == 3) {
          val (part1, part2, part3) = from.parts
          if (part1 is SemanticVersion.Companion.VersionPart.ReleasePart &&
            part2 is SemanticVersion.Companion.VersionPart.ReleasePart &&
            part3 is SemanticVersion.Companion.VersionPart.ReleasePart
          ) {
            // From Minecraft version 1.20.5 onwards, the Paper API version also contains the 'minor' number.
            if (part1.version >= 26 || (part2.version >= 21) || (part2.version == 20 && part3.version >= 5)) {
              return SemanticVersion(listOf(part1, part2, part3))
            }
          }
        }
 
        val (part1, part2) = from.parts
        if (part1 is SemanticVersion.Companion.VersionPart.ReleasePart &&
            part2 is SemanticVersion.Companion.VersionPart.ReleasePart
        ) {
            return SemanticVersion(listOf(part1, part2))
        }
 
        return SemanticVersion(emptyList())
    }
 
  companion object : PropertyDerivationFactory {
 
    override fun create(
      reporter: TemplateValidationReporter,
      parents: List<CreatorProperty<*>?>?,
      derivation: PropertyDerivation
    ): PreparedDerivation? {
      if (parents.isNullOrEmpty()) {
        reporter.error("Expected a parent")
        return null
      }
 
      if (!parents[0]!!.acceptsType(SemanticVersion::class.java)) {
        reporter.error("First parent must produce a semantic version")
        return null
      }
 
      return ExtractPaperApiVersionPropertyDerivation()
    }
  }
}