import io.kotest.core.spec.style.FunSpec
import io.kotest.matchers.ints.shouldBeGreaterThan
import io.kotest.matchers.shouldBe
import io.kotest.matchers.types.instanceOf
import prog8.code.StStaticVariable
import prog8.code.SymbolTable
import prog8.code.core.CbmPrgLauncherType
import prog8.code.core.CompilationOptions
import prog8.code.core.OutputType
import prog8.code.core.ZeropageType
import prog8.code.target.Cx16Target
import prog8.intermediate.IRFileReader
import prog8.intermediate.IRFileWriter
import prog8.intermediate.IRProgram
import kotlin.io.path.*

class TestIRFileInOut: FunSpec({
    test("test IR writer") {
        val st = SymbolTable()
        val target = Cx16Target()
        val tempdir = Path(System.getProperty("java.io.tmpdir"))
        val options = CompilationOptions(
            OutputType.RAW,
            CbmPrgLauncherType.NONE,
            ZeropageType.DONTUSE,
            emptyList(),
            floats = false,
            noSysInit = true,
            compTarget = target,
            loadAddress = target.machine.PROGRAM_LOAD_ADDRESS,
            outputDir = tempdir
        )
        val program = IRProgram("unittest-irwriter", st, options, target)
        val writer = IRFileWriter(program)
        writer.writeFile()
        val generatedFile = tempdir.resolve("unittest-irwriter.p8ir")
        val lines = generatedFile.readLines()
        lines.first() shouldBe "<PROGRAM NAME=unittest-irwriter>"
        lines.last() shouldBe "</PROGRAM>"
        generatedFile.deleteExisting()
        lines.size shouldBeGreaterThan 20
    }

    test("test IR reader") {
        val source="""<PROGRAM NAME=test-ir-reader>
<OPTIONS>
compTarget=virtual
output=PRG
launcher=BASIC
zeropage=KERNALSAFE
loadAddress=0
dontReinitGlobals=false
evalStackBaseAddress=null
</OPTIONS>

<VARIABLES>
uword sys.wait.jiffies=0 zp=DONTCARE
</VARIABLES>

<MEMORYMAPPEDVARIABLES>
&uword cx16.r0=65282
</MEMORYMAPPEDVARIABLES>

<MEMORYSLABS>
</MEMORYSLABS>

<INITGLOBALS>
<C>
load.b r1,42
</C>
</INITGLOBALS>

<BLOCK NAME=main ADDRESS=null ALIGN=NONE POS=[examples/test.p8: line 2 col 2-5]>
<SUB NAME=main.start RETURNTYPE=null POS=[examples/test.p8: line 4 col 6-8]>
<PARAMS>
</PARAMS>
<C>
return
</C>
</SUB>
</BLOCK>

<BLOCK NAME=sys ADDRESS=null ALIGN=NONE POS=[library:/prog8lib/virtual/syslib.p8: line 3 col 2-4]>
<SUB NAME=sys.wait RETURNTYPE=null POS=[library:/prog8lib/virtual/syslib.p8: line 15 col 6-8]>
<PARAMS>
uword sys.wait.jiffies
</PARAMS>
<INLINEASM POS=[library:/prog8lib/virtual/syslib.p8: line 17 col 10-13]>
            loadm.w r0,sys.wait.jiffies
            syscall 13
</INLINEASM>
<C>
return
</C>
</SUB>
</BLOCK>
</PROGRAM>
"""
        val tempfile = kotlin.io.path.createTempFile(suffix = ".p8ir")
        tempfile.writeText(source)
        val filepart = tempfile.name.dropLast(5)
        val reader = IRFileReader(tempfile.parent, filepart)
        val program = reader.readFile()
        tempfile.deleteExisting()
        program.name shouldBe "test-ir-reader"
        program.blocks.size shouldBe 2
        program.st.lookup("sys.wait.jiffies") shouldBe instanceOf<StStaticVariable>()
    }
})