msgexchange-v2/src/test/kotlin/com/gzzn/omms/msgexchange/codec/JacksonXmlCodecTest.kt

package com.gzzn.omms.msgexchange.codec

import com.gzzn.omms.msgexchange.domain.MsgKind
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Assertions.assertInstanceOf
import org.junit.jupiter.api.Assertions.assertTrue
import org.junit.jupiter.api.Test

class JacksonXmlCodecTest {

    private val codec = JacksonXmlCodec()

    @Test
    fun `decode AODBGTDT sample extracts META and three gates`() {
        val raw = """
            <?xml version="1.0" encoding="UTF-8"?>
            <MSG>
              <META>
                <SNDR>AODB</SNDR>
                <SEQN>1243</SEQN>
                <DTTM>20021010090311</DTTM>
                <TYPE>FLOP</TYPE>
                <STYP>GTDT</STYP>
              </META>
              <FLOP>
                <FLID>121112312</FLID>
                <FFID>CA-CA101-A-12DEC261345-D</FFID>
                <GTDT GTNO="1">
                  <GATE>G28</GATE>
                  <PGOT>15DEC261805</PGOT>
                  <PGCT>15DEC261925</PGCT>
                  <GOTM>15DEC261825</GOTM>
                  <GTYP>D</GTYP>
                </GTDT>
                <GTDT GTNO="2">
                  <GATE>G33</GATE>
                  <PGOT>15DEC261805</PGOT>
                  <PGCT>15DEC261925</PGCT>
                  <GTYP>I</GTYP>
                </GTDT>
                <GTDT GTNO="3">
                  <GATE>G23</GATE>
                  <PGOT>15DEC261805</PGOT>
                  <PGCT>15DEC261925</PGCT>
                  <GTYP>D</GTYP>
                </GTDT>
              </FLOP>
            </MSG>
        """.trimIndent()

        val result = codec.decode(raw)
        assertInstanceOf(DecodeResult.Ok::class.java, result)
        val msg = (result as DecodeResult.Ok).message
        assertEquals(MsgKind.Flop("GTDT"), msg.kind)
        assertEquals("AODB", msg.meta.sndr)
        assertEquals(1243L, msg.meta.seqn)

        val body = msg.body as FlopPayload
        assertEquals("121112312", body.flid)
        assertEquals("CA-CA101-A-12DEC261345-D", body.scalars["FFID"])
        assertEquals(3, body.collections["GTDT"]!!.size)
        assertEquals("G28", body.collections["GTDT"]!![0]["GATE"])
        assertEquals("1", body.collections["GTDT"]!![0]["GTNO"])
        assertEquals("G33", body.collections["GTDT"]!![1]["GATE"])
        assertEquals("3", body.collections["GTDT"]!![2]["GTNO"])
    }

    @Test
    fun `decode GTNO zero marks gate clear snapshot`() {
        val raw = """
            <MSG>
              <META>
                <SNDR>AODB</SNDR><SEQN>1</SEQN><DTTM>20021010090311</DTTM>
                <TYPE>FLOP</TYPE><STYP>GTDT</STYP>
              </META>
              <FLOP>
                <FLID>F_CLEAR</FLID>
                <GTDT GTNO="0"></GTDT>
              </FLOP>
            </MSG>
        """.trimIndent()

        val msg = (codec.decode(raw) as DecodeResult.Ok).message
        val body = msg.body as FlopPayload
        assertEquals(listOf(mapOf("GTNO" to "0")), body.collections["GTDT"])
    }

    @Test
    fun `malformed xml returns MALFORMED not CODEC_ERROR`() {
        val err = codec.decode("not-xml") as DecodeResult.Err
        assertEquals(com.gzzn.omms.msgexchange.domain.ErrorClass.MALFORMED, err.failure.errorClass)
        assertTrue(err.failure.detail.contains("empty-or-non-xml"))
    }
}