package mtmc.asm.instructions

import mtmc.asm.Assembler
import mtmc.tokenizer.MTMCToken

class MetaInstruction(instruction: MTMCToken) :
  Instruction(InstructionType.META, listOf(), instruction) {
  private var originalFilePath: MTMCToken? = null
  private var originaLineNumber: MTMCToken? = null
  private var globalName: MTMCToken? = null
  private var globalLocation: MTMCToken? = null
  private var globalType: MTMCToken? = null
  private var localName: MTMCToken? = null
  private var localOffset: MTMCToken? = null
  private var localType: MTMCToken? = null

  override fun genCode(output: ByteArray, assembler: Assembler) {
    // do nothing
  }

  val isFileDirective: Boolean
    get() = "file" == this.instructionToken.stringValue

  val isLineDirective: Boolean
    get() = "line" == this.instructionToken.stringValue

  val isGlobalDirective: Boolean
    get() = "global" == this.instructionToken.stringValue

  val isLocalDirective: Boolean
    get() = "local" == this.instructionToken.stringValue

  val isEndLocalDirective: Boolean
    get() = "endlocal" == this.instructionToken.stringValue

  fun setOriginalFilePath(path: MTMCToken) {
    this.originalFilePath = path
  }

  fun setOriginalLineNumber(lineNumber: MTMCToken) {
    this.originaLineNumber = lineNumber
  }

  val originalLineNumber: Int
    get() = this.originaLineNumber!!.intValue()

  fun setGlobalInfo(name: MTMCToken, location: MTMCToken, type: MTMCToken) {
    this.globalName = name
    this.globalLocation = location
    this.globalType = type
  }

  fun setLocalInfo(name: MTMCToken, offset: MTMCToken, type: MTMCToken) {
    this.localName = name
    this.localOffset = offset
    this.localType = type
  }

  fun setEndLocalInfo(name: MTMCToken) {
    this.localName = name
  }

  fun getOriginalFilePath(): String? {
    return this.originalFilePath!!.stringValue
  }

  fun getGlobalName(): String? {
    return this.globalName!!.stringValue
  }

  fun getGlobalLocation(): Int {
    return this.globalLocation!!.intValue()
  }

  fun getGlobalType(): String? {
    return this.globalType!!.stringValue
  }

  fun getLocalName(): String? {
    return this.localName!!.stringValue
  }

  fun getLocalOffset(): Int {
    return this.localOffset!!.intValue()
  }

  fun getLocalType(): String? {
    return this.localType!!.stringValue
  }
}