package dell

import (
	"archive/tar"
	"bytes"
	"compress/gzip"
	"testing"

	"git.mchus.pro/mchus/logpile/internal/parser"
)

func makeRedfishWalkTarGz(t *testing.T, files map[string]string) []byte {
	t.Helper()
	var buf bytes.Buffer
	gzw := gzip.NewWriter(&buf)
	tw := tar.NewWriter(gzw)
	for name, content := range files {
		hdr := &tar.Header{
			Name: name,
			Mode: 0o644,
			Size: int64(len(content)),
		}
		if err := tw.WriteHeader(hdr); err != nil {
			t.Fatalf("write tar header %s: %v", name, err)
		}
		if _, err := tw.Write([]byte(content)); err != nil {
			t.Fatalf("write tar content %s: %v", name, err)
		}
	}
	if err := tw.Close(); err != nil {
		t.Fatalf("close tar: %v", err)
	}
	if err := gzw.Close(); err != nil {
		t.Fatalf("close gzip: %v", err)
	}
	return buf.Bytes()
}

// TestParseNestedTSRZip_RedfishWalkFillsInventory reproduces an iDRAC10-generation
// TSR bundle: no sysinfo_dcim_view.xml / sysinfo_dcim_softwareidentity.xml, only
// metadata.json, curr_lclog.xml and a captured redfishidracwalk.tar.gz. Hardware
// inventory must come from the Redfish walk instead of being left empty.
func TestParseNestedTSRZip_RedfishWalkFillsInventory(t *testing.T) {
	redfishWalk := makeRedfishWalkTarGz(t, map[string]string{
		"redfish/v1/index.json": `{"@odata.id":"/redfish/v1"}`,
		"redfish/v1/Systems/index.json": `{
			"@odata.id":"/redfish/v1/Systems",
			"Members":[{"@odata.id":"/redfish/v1/Systems/System.Embedded.1"}]
		}`,
		"redfish/v1/Systems/System.Embedded.1/index.json": `{
			"@odata.id":"/redfish/v1/Systems/System.Embedded.1",
			"Id":"System.Embedded.1",
			"Manufacturer":"Dell Inc.",
			"Model":"PowerEdge R470",
			"SKU":"1TVFYL4",
			"Processors":{"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Processors"},
			"Memory":{"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Memory"}
		}`,
		"redfish/v1/Systems/System.Embedded.1/Processors/index.json": `{
			"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Processors",
			"Members":[{"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Processors/CPU.Socket.0"}]
		}`,
		"redfish/v1/Systems/System.Embedded.1/Processors/CPU.Socket.0/index.json": `{
			"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Processors/CPU.Socket.0",
			"Id":"CPU.Socket.0",
			"ProcessorType":"CPU",
			"Model":"Intel Xeon 6740P",
			"Manufacturer":"Intel"
		}`,
		"redfish/v1/Systems/System.Embedded.1/Memory/index.json": `{
			"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Memory",
			"Members":[{"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Memory/DIMM.Socket.A1"}]
		}`,
		"redfish/v1/Systems/System.Embedded.1/Memory/DIMM.Socket.A1/index.json": `{
			"@odata.id":"/redfish/v1/Systems/System.Embedded.1/Memory/DIMM.Socket.A1",
			"Id":"DIMM.Socket.A1",
			"DeviceLocator":"DIMM.Socket.A1",
			"CapacityMiB":32768,
			"SerialNumber":"DIMM-A1-SN"
		}`,
	})

	inner := makeZipArchive(t, map[string][]byte{
		"tsr/metadata.json":                                      []byte(`{"Make":"Dell Inc.","Model":"PowerEdge R470","ServiceTag":"1TVFYL4"}`),
		"tsr/hardware/sysinfo/lcfiles/curr_lclog.xml":            []byte(`<CIM><MESSAGE><SIMPLEREQ/></MESSAGE></CIM>`),
		"tsr/hardware/sysinfo/inventory/redfishidracwalk.tar.gz": redfishWalk,
	})

	p := &Parser{}
	files := []parser.ExtractedFile{
		{Path: "signature", Content: []byte("ok")},
		{Path: "TSR20260721231613_1TVFYL4.pl.zip", Content: inner},
	}

	if score := p.Detect(files); score < 80 {
		t.Fatalf("expected high detect score for iDRAC10-style TSR without DCIM XML, got %d", score)
	}

	result, err := p.Parse(files)
	if err != nil {
		t.Fatalf("Parse() failed: %v", err)
	}
	if result.Hardware == nil {
		t.Fatal("expected non-nil Hardware")
	}
	if got := result.Hardware.BoardInfo.Manufacturer; got != "Dell Inc." {
		t.Fatalf("expected board manufacturer from metadata.json, got %q", got)
	}
	if len(result.Hardware.CPUs) != 1 || result.Hardware.CPUs[0].Model != "Intel Xeon 6740P" {
		t.Fatalf("expected CPU inventory from redfishidracwalk.tar.gz, got %+v", result.Hardware.CPUs)
	}
	if len(result.Hardware.Memory) != 1 || result.Hardware.Memory[0].SerialNumber != "DIMM-A1-SN" {
		t.Fatalf("expected memory inventory from redfishidracwalk.tar.gz, got %+v", result.Hardware.Memory)
	}
}