package configkit

import (
	"testing"

	"gitea.maximumdirect.net/eric/ConfigKit/internal/engine"
)

func TestOverlayPublicValues(t *testing.T) {
	if LayerOverlay != "overlay" {
		t.Fatalf("LayerOverlay = %q", LayerOverlay)
	}
	for code, value := range map[Code]string{
		CodeOverlayInvalid:       "overlay.invalid",
		CodeOverlayMissing:       "overlay.missing",
		CodeOverlayOutsideRoot:   "overlay.outside_root",
		CodeOverlayRepeated:      "overlay.repeated",
		CodeOverlayDirective:     "overlay.directive",
		CodeOverlayVersion:       "overlay.version",
		CodeOverlayLimitExceeded: "overlay.limit_exceeded",
	} {
		if string(code) != value {
			t.Errorf("code = %q, want %q", code, value)
		}
	}
}

func TestSourceInfoDestinationConversionsAndCopies(t *testing.T) {
	destination := Keys("collections", "a/b", "0")
	public := SourceInfo{
		ID: "source-1", Destination: destination,
		PlacementMode: PlacementModeSequenceItem, DestinationUnresolved: true,
	}
	internal := toEngineSourceInfo(public)
	if internal.Destination.String() != destination.String() || engine.SourceInfoPlacementModeForFacade(internal) != uint8(PlacementModeSequenceItem) || !engine.SourceInfoDestinationUnresolvedForFacade(internal) {
		t.Fatalf("engine source evidence = %#v", internal)
	}
	converted := fromEngineSourceInfo(internal)
	if converted.Destination.String() != destination.String() || converted.PlacementMode != PlacementModeSequenceItem || !converted.DestinationUnresolved {
		t.Fatalf("public source evidence = %#v", converted)
	}
	copy := cloneSourceInfo(converted)
	copy.Destination = Path{}
	if converted.Destination.String() != destination.String() {
		t.Fatalf("source record destination changed through clone: %q", converted.Destination.String())
	}
}

func TestSourceVersionCheckConversionsAndCopies(t *testing.T) {
	path := Keys("records").Index(2).Key("version")
	source := SourceInfo{
		ID: "source-1",
		VersionCheck: &SourceVersionCheck{
			Path: path, Version: Version{Present: true, Text: "123"},
			Location: &Location{SourceID: "source-1", Line: 4, Column: 8},
		},
	}
	internal := toEngineSourceInfo(source)
	if internal.VersionCheck == nil || internal.VersionCheck.Path.String() != path.String() ||
		internal.VersionCheck.Version.Text != "123" || internal.VersionCheck.Location == nil || internal.VersionCheck.Location.Line != 4 {
		t.Fatalf("engine source version check = %#v", internal.VersionCheck)
	}
	converted := fromEngineSourceInfo(internal)
	copy := cloneSourceInfo(converted)
	copy.VersionCheck.Path = Keys("changed")
	copy.VersionCheck.Version.Text = "changed"
	copy.VersionCheck.Location.Line = 99
	copy.VersionCheck.Redacted = true
	if converted.VersionCheck.Path.String() != path.String() || converted.VersionCheck.Version.Text != "123" ||
		converted.VersionCheck.Location.Line != 4 || converted.VersionCheck.Redacted {
		t.Fatalf("source version check changed through a detached copy: %#v", converted.VersionCheck)
	}
}

func TestImportSelectionConversionsAndCopies(t *testing.T) {
	declaration, err := ParsePath("/configkit/imports/2")
	if err != nil {
		t.Fatal(err)
	}
	source := SourceInfo{ID: "source-4", ImportSelections: []ImportSelection{{
		Path: declaration, Location: Location{SourceID: "source-4", Line: 7, Column: 5},
		Selector: ImportSelectorGlob, Outcome: ImportSelectionNone,
	}}}
	internal := toEngineSourceInfo(source)
	transport := engine.SourceInfoImportSelectionsForFacade(internal)
	if len(transport) != 1 || transport[0].Path.String() != declaration.String() || transport[0].Location.SourceID != source.ID || transport[0].Selector != "glob" || transport[0].Outcome != "none" {
		t.Fatalf("engine selection evidence = %#v", transport)
	}
	source.ImportSelections[0].Path = Keys("changed")
	converted := fromEngineSourceInfo(internal)
	if len(converted.ImportSelections) != 1 || converted.ImportSelections[0].Path.String() != declaration.String() || converted.ImportSelections[0].Location.Line != 7 || converted.ImportSelections[0].Selector != ImportSelectorGlob || converted.ImportSelections[0].Outcome != ImportSelectionNone {
		t.Fatalf("converted selection evidence = %#v", converted.ImportSelections)
	}
	copy := cloneSourceInfo(converted)
	copy.ImportSelections[0].Path = Keys("copy")
	copy.ImportSelections[0].Selector = ImportSelectorPath
	if converted.ImportSelections[0].Path.String() != declaration.String() || converted.ImportSelections[0].Selector != ImportSelectorGlob {
		t.Fatalf("source selection evidence changed through copy: %#v", converted.ImportSelections)
	}
	empty := cloneSourceInfo(SourceInfo{ImportSelections: make([]ImportSelection, 0)})
	if empty.ImportSelections == nil {
		t.Fatal("cloning collapsed a non-nil empty selection slice")
	}
}