package oplcli

import "testing"

func TestParseCases(t *testing.T) {
	var testData = []struct {
		name     string
		content  []byte
		expected string
		wantErr  bool
	}{
		{
			name:     "SLUS with underscore and dot",
			content:  []byte("Some binary data\x00\x00SLUS_123.45\x00\x00more data"),
			expected: "SLUS_123.45",
		},
		{
			name:     "SLUS with hyphen",
			content:  []byte("\x00\x00\x00SLUS-12345\x00\x00\x00"),
			expected: "SLUS_123.45",
		},
		{
			name:     "SLES format",
			content:  []byte("Header data\x00SLES_987.65\x00footer"),
			expected: "SLES_987.65",
		},
		{
			name:     "SLPS format",
			content:  []byte("\xFF\xFESLPS_456.78\x00"),
			expected: "SLPS_456.78",
		},
		{
			name:     "SCUS format",
			content:  []byte("SCUS-97512"),
			expected: "SCUS_975.12",
		},
		{
			name:     "No separator format",
			content:  []byte("\x00\x00SLUS12345\x00\x00"),
			expected: "SLUS_123.45",
		},
		{
			name:     "With spaces",
			content:  []byte("SLUS 123.45"),
			expected: "SLUS_123.45",
		},
		{
			name:     "No game ID found",
			content:  []byte("Just some random data without any game ID"),
			expected: "",
		},
		{
			name:     "Invalid game ID format",
			content:  []byte("SLUS-ABC.DE"),
			expected: "",
		},
	}

	for _, tt := range testData {
		t.Run(tt.name, func(t *testing.T) {
			gameID, found := scanBufferForID(tt.content)

			if tt.expected == "" && found {
				t.Errorf("Found game id where none should be found: %s", gameID)
			}

			if tt.expected == "" && !found {
				return
			}

			if tt.expected != gameID {
				t.Errorf("Expected %s got %s", tt.expected, gameID)
			}
		})
	}
}

func TestNormalize(t *testing.T) {
	testData := []struct {
		input    string
		expected string
	}{
		{
			input:    "SLUS-12345",
			expected: "SLUS_123.45",
		},
		{
			input:    "SLES_987.65",
			expected: "SLES_987.65",
		},
		{
			input:    "SLPS_456.78",
			expected: "SLPS_456.78",
		},
		{
			input:    "scus-97512",
			expected: "SCUS_975.12",
		},
		{
			input:    "SLUS12345",
			expected: "SLUS_123.45",
		},
		{
			input:    "SLUS123.45",
			expected: "SLUS_123.45",
		},
		{
			input:    "SLUs123.45",
			expected: "SLUS_123.45",
		},
	}

	for _, tt := range testData {
		t.Run(tt.input, func(t *testing.T) {
			normalized := normalizeGameID(tt.input)

			if normalized != tt.expected {
				t.Errorf("Expected %s got %s", tt.expected, normalized)
			}
		})
	}
}