package bambulab

import (
	"context"
	"encoding/json"
	"testing"

	"gitea.stevedudenhoeffer.com/steve/go-extractor"
	"gitea.stevedudenhoeffer.com/steve/go-extractor/extractortest"
)

func makeNextDataJSON(printerMap map[string]printerEntry) string {
	data := nextData{}
	data.Props.PageProps.PrinterMap = printerMap
	b, _ := json.Marshal(data)
	return string(b)
}

var samplePrinterMap = map[string]printerEntry{
	"x1": {
		Key:      "x1",
		DevModel: "BL-P001",
		Name:     "Bambu Lab X1 Series",
		Versions: []firmwareVersion{
			{
				Version:        "01.11.02.00",
				URL:            "https://public-cdn.bblmw.com/upgrade/device/offline/BL-P001/01.11.02.00/e63e21a87c/offline-ota-p001_v01.11.02.00-20251210083345.zip",
				MD5:            "1aa2c8400b4a3d599f8b4a09db60635c",
				ReleaseTime:    "2025-12-10T12:01:58Z",
				ReleaseNotesEN: "# Version 01.11.02.00\n## Feature Optimization:\n* Enhanced accuracy",
			},
			{
				Version:        "01.10.01.00",
				URL:            "https://public-cdn.bblmw.com/upgrade/device/offline/BL-P001/01.10.01.00/abc123/offline-ota-p001_v01.10.01.00.zip",
				MD5:            "abc123def456",
				ReleaseTime:    "2025-06-15T10:00:00Z",
				ReleaseNotesEN: "# Version 01.10.01.00\n## Bug Fixes:\n* Fixed connectivity issue",
			},
			{
				Version:        "01.09.00.00",
				URL:            "https://public-cdn.bblmw.com/upgrade/device/offline/BL-P001/01.09.00.00/def456/offline-ota-p001_v01.09.00.00.zip",
				MD5:            "def456ghi789",
				ReleaseTime:    "2025-03-01T08:00:00Z",
				ReleaseNotesEN: "",
			},
		},
	},
	"a1-mini": {
		Key:      "a1-mini",
		DevModel: "BL-A001",
		Name:     "Bambu Lab A1 mini",
		Versions: []firmwareVersion{
			{
				Version:     "01.05.00.00",
				URL:         "https://public-cdn.bblmw.com/upgrade/device/offline/BL-A001/01.05.00.00/xyz/firmware.zip",
				MD5:         "xyz789",
				ReleaseTime: "2025-11-01T09:00:00Z",
			},
		},
	},
}

func makeFirmwareDoc(model string) *extractortest.MockDocument {
	return &extractortest.MockDocument{
		URLValue: firmwarePageURL(model),
		MockNode: extractortest.MockNode{
			Children: map[string]extractor.Nodes{
				"script#__NEXT_DATA__": {
					&extractortest.MockNode{TextValue: makeNextDataJSON(samplePrinterMap)},
				},
			},
		},
	}
}

func TestExtractAllFirmware(t *testing.T) {
	doc := makeFirmwareDoc("x1")

	results, err := extractAllFirmware(doc, "x1")
	if err != nil {
		t.Fatalf("extractAllFirmware() error: %v", err)
	}

	if len(results) != 3 {
		t.Fatalf("len(results) = %d, want 3", len(results))
	}

	// Should be sorted newest first
	if results[0].Version != "01.11.02.00" {
		t.Errorf("results[0].Version = %q, want %q", results[0].Version, "01.11.02.00")
	}
	if results[0].ReleaseDate != "2025-12-10" {
		t.Errorf("results[0].ReleaseDate = %q, want %q", results[0].ReleaseDate, "2025-12-10")
	}
	if results[0].MD5 != "1aa2c8400b4a3d599f8b4a09db60635c" {
		t.Errorf("results[0].MD5 = %q, want %q", results[0].MD5, "1aa2c8400b4a3d599f8b4a09db60635c")
	}
	if results[0].Model != "x1" {
		t.Errorf("results[0].Model = %q, want %q", results[0].Model, "x1")
	}
	if results[0].DownloadURL == "" {
		t.Error("results[0].DownloadURL is empty")
	}
	if results[0].ReleaseNotes == "" {
		t.Error("results[0].ReleaseNotes is empty")
	}

	// Second result
	if results[1].Version != "01.10.01.00" {
		t.Errorf("results[1].Version = %q, want %q", results[1].Version, "01.10.01.00")
	}
	if results[1].ReleaseDate != "2025-06-15" {
		t.Errorf("results[1].ReleaseDate = %q, want %q", results[1].ReleaseDate, "2025-06-15")
	}

	// Third result (oldest)
	if results[2].Version != "01.09.00.00" {
		t.Errorf("results[2].Version = %q, want %q", results[2].Version, "01.09.00.00")
	}
}

func TestExtractAllFirmware_UnknownModel(t *testing.T) {
	doc := makeFirmwareDoc("x1")

	_, err := extractAllFirmware(doc, "nonexistent")
	if err == nil {
		t.Fatal("expected error for unknown model, got nil")
	}
}

func TestExtractAllFirmware_NoScript(t *testing.T) {
	doc := &extractortest.MockDocument{
		MockNode: extractortest.MockNode{
			Children: map[string]extractor.Nodes{},
		},
	}

	_, err := extractAllFirmware(doc, "x1")
	if err == nil {
		t.Fatal("expected error for missing __NEXT_DATA__, got nil")
	}
}

func TestGetLatestFirmware_MockBrowser(t *testing.T) {
	doc := makeFirmwareDoc("x1")

	browser := &extractortest.MockBrowser{
		Documents: map[string]*extractortest.MockDocument{
			firmwarePageURL("x1"): doc,
		},
	}

	fw, err := DefaultConfig.GetLatestFirmware(context.Background(), browser, "x1")
	if err != nil {
		t.Fatalf("GetLatestFirmware() error: %v", err)
	}

	if fw.Version != "01.11.02.00" {
		t.Errorf("Version = %q, want %q", fw.Version, "01.11.02.00")
	}
	if fw.ReleaseDate != "2025-12-10" {
		t.Errorf("ReleaseDate = %q, want %q", fw.ReleaseDate, "2025-12-10")
	}
	if fw.Model != "x1" {
		t.Errorf("Model = %q, want %q", fw.Model, "x1")
	}
}

func TestGetAllFirmware_MockBrowser(t *testing.T) {
	doc := makeFirmwareDoc("a1-mini")

	browser := &extractortest.MockBrowser{
		Documents: map[string]*extractortest.MockDocument{
			firmwarePageURL("a1-mini"): doc,
		},
	}

	results, err := DefaultConfig.GetAllFirmware(context.Background(), browser, "a1-mini")
	if err != nil {
		t.Fatalf("GetAllFirmware() error: %v", err)
	}

	if len(results) != 1 {
		t.Fatalf("len(results) = %d, want 1", len(results))
	}
	if results[0].Version != "01.05.00.00" {
		t.Errorf("Version = %q, want %q", results[0].Version, "01.05.00.00")
	}
	if results[0].Model != "a1-mini" {
		t.Errorf("Model = %q, want %q", results[0].Model, "a1-mini")
	}
}

func TestGetLatestFirmware_Convenience(t *testing.T) {
	doc := makeFirmwareDoc("x1")

	browser := &extractortest.MockBrowser{
		Documents: map[string]*extractortest.MockDocument{
			firmwarePageURL("x1"): doc,
		},
	}

	fw, err := GetLatestFirmware(context.Background(), browser, "x1")
	if err != nil {
		t.Fatalf("GetLatestFirmware() error: %v", err)
	}

	if fw.Version != "01.11.02.00" {
		t.Errorf("Version = %q, want %q", fw.Version, "01.11.02.00")
	}
}

func TestGetAllFirmware_Convenience(t *testing.T) {
	doc := makeFirmwareDoc("x1")

	browser := &extractortest.MockBrowser{
		Documents: map[string]*extractortest.MockDocument{
			firmwarePageURL("x1"): doc,
		},
	}

	results, err := GetAllFirmware(context.Background(), browser, "x1")
	if err != nil {
		t.Fatalf("GetAllFirmware() error: %v", err)
	}

	if len(results) != 3 {
		t.Fatalf("len(results) = %d, want 3", len(results))
	}
}

func TestFirmwarePageURL(t *testing.T) {
	tests := []struct {
		model string
		want  string
	}{
		{"x1", "https://bambulab.com/en/support/firmware-download/x1"},
		{"a1-mini", "https://bambulab.com/en/support/firmware-download/a1-mini"},
		{"p1", "https://bambulab.com/en/support/firmware-download/p1"},
	}

	for _, tt := range tests {
		got := firmwarePageURL(tt.model)
		if got != tt.want {
			t.Errorf("firmwarePageURL(%q) = %q, want %q", tt.model, got, tt.want)
		}
	}
}

func TestFormatReleaseDate(t *testing.T) {
	tests := []struct {
		input string
		want  string
	}{
		{"2025-12-10T12:01:58Z", "2025-12-10"},
		{"2025-06-15T10:00:00Z", "2025-06-15"},
		{"2025-03-01", "2025-03-01"},
		{"invalid", "invalid"},
	}

	for _, tt := range tests {
		got := formatReleaseDate(tt.input)
		if got != tt.want {
			t.Errorf("formatReleaseDate(%q) = %q, want %q", tt.input, got, tt.want)
		}
	}
}