msgexchange-v2/src/main/kotlin/com/gzzn/omms/msgexchange/codec/SisWireMapper.kt

package com.gzzn.omms.msgexchange.codec

import com.gzzn.omms.msgexchange.domain.flight.ScheduleRecord

/** Converts the annotated wire DTOs into the stable payload types used by processing. */
internal object SisWireMapper {
    fun scheduleBody(xml: SchdXml): ScheduleBody = ScheduleBody(
        recsDeclared = xml.recs ?: -1,
        records = xml.fltr.mapNotNull(::scheduleRecord),
    )

    fun flopPayload(xml: FlightRecordXml): FlopPayload? =
        xml.flid?.trim()?.takeIf(String::isNotEmpty)?.let {
            FlopPayload(it, xml.scalars(), xml.collections())
        }

    private fun scheduleRecord(xml: FlightRecordXml): ScheduleRecord? =
        xml.flid?.trim()?.takeIf(String::isNotEmpty)?.let {
            ScheduleRecord(it, xml.scalars(), xml.collections())
        }

    private fun FlightRecordXml.scalars(): Map<String, String> = linkedMapOf<String, String>().apply {
        listOf(
            "ALCD" to alcd, "ALSC" to alsc, "FLNO" to flno, "MVIN" to mvin, "SODT" to sodt,
            "FLTY" to flty, "FLIN" to flin, "ACFT" to acft, "RENO" to reno, "TAOP" to taop,
            "TAFL" to tafl, "TAID" to taid, "TRML" to trml, "MAXP" to maxp, "CSOP" to csop,
            "CSFT" to csft, "MAID" to maid, "ESTT" to estt, "ACTT" to actt, "STND" to stnd,
            "PHAG" to phag, "CNCL" to cncl, "REMC" to remc, "BOTM" to botm, "LACL" to lacl,
            "FINT" to fint, "APPT" to appt, "EGSR" to egsr, "EGST" to egst, "FHAG" to fhag,
            "MHAG" to mhag, "VIPP" to vipp, "VIPR" to vipr, "LBNO" to lbno, "LBWT" to lbwt,
            "PAXC" to paxc, "EXSC" to exsc, "EXSR" to exsr, "FTSS" to ftss, "PEDT" to pedt,
            "NAAT" to naat, "NEAT" to neat, "PADT" to padt,
        ).forEach { (key, value) -> value?.let { put(key, it.trim()) } }
    }

    private fun FlightRecordXml.collections(): Map<String, List<Map<String, String>>> = linkedMapOf(
        "GTDT" to gtdt.map { it.toMap("GTNO" to it.gtno, "GATE" to it.gate, "PGOT" to it.pgot, "PGCT" to it.pgct, "GOTM" to it.gotm, "GCTM" to it.gctm, "GTYP" to it.gtyp) },
        "CKDT" to ckdt.map { it.toMap("CKNO" to it.ckno, "CHKC" to it.chkc, "CCLS" to it.ccls, "PCOT" to it.pcot, "PCCT" to it.pcct, "COTM" to it.cotm, "CCTM" to it.cctm, "CTYP" to it.ctyp) },
        "CLDT" to cldt.map { it.toMap("CLNO" to it.clno, "BELT" to it.belt, "BCLS" to it.bcls, "PCOT" to it.pcot, "PCCT" to it.pcct, "FBAG" to it.fbag, "LBAG" to it.lbag, "BTYP" to it.btyp) },
        "PSDT" to psdt.map { it.toMap("PSNO" to it.psno, "PSST" to it.psst, "STST" to it.stst, "STET" to it.stet) },
        "CHDT" to chdt.map { it.toMap("CHNO" to it.chno, "CHUT" to it.chut, "CHCLS" to it.chcls, "PCBT" to it.pcbt, "PCET" to it.pcet, "CBTM" to it.cbtm, "CETM" to it.cetm, "CHTYP" to it.chtyp) },
        "DELY" to dely.map { it.toMap("CODE" to it.code, "STRT" to it.strt, "DURA" to it.dura, "REMC" to it.text) },
        "ABTM" to abtm.map { it.toMap("ASNO" to it.asno, "ABDG" to it.abdg, "ABOP" to it.abop, "AOTM" to it.aotm) },
        "CHOT" to chot.map { it.toMap("CSNO" to it.csno, "CHID" to it.chid, "CHST" to it.chst, "CHTM" to it.chtm) },
        "ROUT" to rout.map { it.toMap("RTNO" to it.rtno, "APCD" to it.apcd, "SCAT" to it.scat, "SCDT" to it.scdt) },
        "ERUT" to erut.map { it.toMap("RTNO" to it.rtno, "APCD" to it.apcd, "SCAT" to it.scat, "SCDT" to it.scdt) },
    ).filterValues { it.isNotEmpty() }

    private fun Any.toMap(vararg values: Pair<String, String?>): Map<String, String> = values.mapNotNull { (key, value) ->
        value?.trim()?.let { key to it }
    }.toMap(LinkedHashMap())
}