package versioning_test

import (
	"testing"

	"git.bit5.ru/backend/versioning"

	"github.com/stretchr/testify/require"
)

func TestVersion(t *testing.T) {
	t.Run("Equal", func(t *testing.T) {
		cases := []struct {
			a             versioning.Version
			b             versioning.Version
			expectedEqual bool
		}{
			{
				a:             versioning.MustParseVersion("1.0"),
				b:             versioning.MustParseVersion("1.0.0"),
				expectedEqual: true,
			},

			{
				a:             versioning.MustParseVersion("1.0.1"),
				b:             versioning.MustParseVersion("1.0.0"),
				expectedEqual: false,
			},

			{
				a:             versioning.MustParseVersion("0.999.99"),
				b:             versioning.MustParseVersion("1.0.0"),
				expectedEqual: false,
			},
		}

		for i, c := range cases {
			caseNum := i + 1

			actualEqual := c.a.Equal(c.b)
			require.EqualValues(t, c.expectedEqual, actualEqual, "case#%d", caseNum)
		}
	})

	t.Run("Less", func(t *testing.T) {
		cases := []struct {
			a            versioning.Version
			b            versioning.Version
			expectedLess bool
		}{
			{
				a:            versioning.MustParseVersion("1.0"),
				b:            versioning.MustParseVersion("1.0.0"),
				expectedLess: false,
			},

			{
				a:            versioning.MustParseVersion("1.0.1"),
				b:            versioning.MustParseVersion("1.0.0"),
				expectedLess: false,
			},

			{
				a:            versioning.MustParseVersion("0.999.99"),
				b:            versioning.MustParseVersion("1.0.0"),
				expectedLess: true,
			},
		}

		for i, c := range cases {
			caseNum := i + 1

			actualLess := c.a.Less(c.b)
			require.EqualValues(t, c.expectedLess, actualLess, "case#%d", caseNum)
		}
	})

	t.Run("Lte", func(t *testing.T) {
		cases := []struct {
			a           versioning.Version
			b           versioning.Version
			expectedLte bool
		}{
			{
				a:           versioning.MustParseVersion("1.0"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedLte: true,
			},

			{
				a:           versioning.MustParseVersion("1.0.1"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedLte: false,
			},

			{
				a:           versioning.MustParseVersion("0.999.99"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedLte: true,
			},
		}

		for i, c := range cases {
			caseNum := i + 1

			actualLte := c.a.Lte(c.b)
			require.EqualValues(t, c.expectedLte, actualLte, "case#%d", caseNum)
		}
	})

	t.Run("Greater", func(t *testing.T) {
		cases := []struct {
			a               versioning.Version
			b               versioning.Version
			expectedGreater bool
		}{
			{
				a:               versioning.MustParseVersion("1.0"),
				b:               versioning.MustParseVersion("1.0.0"),
				expectedGreater: false,
			},

			{
				a:               versioning.MustParseVersion("1.0.1"),
				b:               versioning.MustParseVersion("1.0.0"),
				expectedGreater: true,
			},

			{
				a:               versioning.MustParseVersion("0.999.99"),
				b:               versioning.MustParseVersion("1.0.0"),
				expectedGreater: false,
			},
		}

		for i, c := range cases {
			caseNum := i + 1

			actualGreater := c.a.Greater(c.b)
			require.EqualValues(t, c.expectedGreater, actualGreater, "case#%d", caseNum)
		}
	})

	t.Run("Gte", func(t *testing.T) {
		cases := []struct {
			a           versioning.Version
			b           versioning.Version
			expectedGte bool
		}{
			{
				a:           versioning.MustParseVersion("1.0"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedGte: true,
			},

			{
				a:           versioning.MustParseVersion("1.0.1"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedGte: true,
			},

			{
				a:           versioning.MustParseVersion("0.999.99"),
				b:           versioning.MustParseVersion("1.0.0"),
				expectedGte: false,
			},
		}

		for i, c := range cases {
			caseNum := i + 1

			actualGte := c.a.Gte(c.b)
			require.EqualValues(t, c.expectedGte, actualGte, "case#%d", caseNum)
		}
	})
}

func TestParseVersion(t *testing.T) {
	cases := []struct {
		versionStr    string
		valid         bool
		expectedMajor uint16
		expectedMinor uint16
		expectedPatch uint8
		expectedStr   string
		expectedCode  uint32
	}{
		{versionStr: "0.0.0", valid: true, expectedMajor: 0, expectedMinor: 0, expectedPatch: 0, expectedStr: "0.0.0", expectedCode: 0},
		{versionStr: "0.0.1", valid: true, expectedMajor: 0, expectedMinor: 0, expectedPatch: 1, expectedStr: "0.0.1", expectedCode: 1},
		{versionStr: "0.1.0", valid: true, expectedMajor: 0, expectedMinor: 1, expectedPatch: 0, expectedStr: "0.1.0", expectedCode: 100},
		{versionStr: "0.1.1", valid: true, expectedMajor: 0, expectedMinor: 1, expectedPatch: 1, expectedStr: "0.1.1", expectedCode: 101},
		{versionStr: "1.0.0", valid: true, expectedMajor: 1, expectedMinor: 0, expectedPatch: 0, expectedStr: "1.0.0", expectedCode: 100000},
		{versionStr: "1.0.1", valid: true, expectedMajor: 1, expectedMinor: 0, expectedPatch: 1, expectedStr: "1.0.1", expectedCode: 100001},
		{versionStr: "1.1.0", valid: true, expectedMajor: 1, expectedMinor: 1, expectedPatch: 0, expectedStr: "1.1.0", expectedCode: 100100},
		{versionStr: "1.1.1", valid: true, expectedMajor: 1, expectedMinor: 1, expectedPatch: 1, expectedStr: "1.1.1", expectedCode: 100101},

		{versionStr: "12345.123.12", valid: true, expectedMajor: 12345, expectedMinor: 123, expectedPatch: 12, expectedStr: "12345.123.12", expectedCode: 1234512312},
		{versionStr: "42948.999.99", valid: true, expectedMajor: 42948, expectedMinor: 999, expectedPatch: 99, expectedStr: "42948.999.99", expectedCode: 4294899999},
		{versionStr: "42948.999.100", valid: false},
		{versionStr: "42948.1000.99", valid: false},
		{versionStr: "42948.1000.100", valid: false},
		{versionStr: "42949.999.99", valid: false},
		{versionStr: "42949.999.100", valid: false},
		{versionStr: "42949.1000.99", valid: false},
		{versionStr: "42949.1000.100", valid: false},

		{versionStr: "0.0", valid: true, expectedMajor: 0, expectedMinor: 0, expectedPatch: 0, expectedStr: "0.0.0", expectedCode: 0},
		{versionStr: "0.1", valid: true, expectedMajor: 0, expectedMinor: 1, expectedPatch: 0, expectedStr: "0.1.0", expectedCode: 100},
		{versionStr: "1.0", valid: true, expectedMajor: 1, expectedMinor: 0, expectedPatch: 0, expectedStr: "1.0.0", expectedCode: 100000},
		{versionStr: "1.1", valid: true, expectedMajor: 1, expectedMinor: 1, expectedPatch: 0, expectedStr: "1.1.0", expectedCode: 100100},

		{versionStr: "12345.123", valid: true, expectedMajor: 12345, expectedMinor: 123, expectedPatch: 0, expectedStr: "12345.123.0", expectedCode: 1234512300},
		{versionStr: "42948.999", valid: true, expectedMajor: 42948, expectedMinor: 999, expectedPatch: 0, expectedStr: "42948.999.0", expectedCode: 4294899900},
		{versionStr: "42948.1000", valid: false},
		{versionStr: "42949.999", valid: false},
		{versionStr: "42949.1000", valid: false},

		{versionStr: "0", valid: true, expectedMajor: 0, expectedMinor: 0, expectedPatch: 0, expectedStr: "0.0.0", expectedCode: 0},
		{versionStr: "1", valid: true, expectedMajor: 1, expectedMinor: 0, expectedPatch: 0, expectedStr: "1.0.0", expectedCode: 100000},

		{versionStr: "12345", valid: true, expectedMajor: 12345, expectedMinor: 0, expectedPatch: 0, expectedStr: "12345.0.0", expectedCode: 1234500000},
		{versionStr: "42948", valid: true, expectedMajor: 42948, expectedMinor: 0, expectedPatch: 0, expectedStr: "42948.0.0", expectedCode: 4294800000},
		{versionStr: "42949", valid: false},

		{versionStr: "1 ", valid: false},
		{versionStr: " 1", valid: false},
		{versionStr: "a1", valid: false},
		{versionStr: "1a", valid: false},

		{versionStr: "1.1 ", valid: false},
		{versionStr: "1. 1", valid: false},
		{versionStr: "1.1a", valid: false},
		{versionStr: "1.a1", valid: false},

		{versionStr: "1.1.1 ", valid: false},
		{versionStr: "1.1. 1", valid: false},
		{versionStr: "1.1.1a", valid: false},
		{versionStr: "1.1.a1", valid: false},
		{versionStr: "1,1.1", valid: false},
		{versionStr: "1!1.1", valid: false},
		{versionStr: "1 1.1", valid: false},
	}

	for i, c := range cases {
		caseNum := i + 1

		v, err := versioning.ParseVersion(c.versionStr)

		if !c.valid {
			require.Error(t, err, "case#%d", caseNum)
			continue
		}

		require.NoError(t, err, "case#%d", caseNum)
		require.EqualValues(t, c.expectedMajor, v.Major(), "case#%d", caseNum)
		require.EqualValues(t, c.expectedMinor, v.Minor(), "case#%d", caseNum)
		require.EqualValues(t, c.expectedPatch, v.Patch(), "case#%d", caseNum)
		require.EqualValues(t, c.expectedStr, v.String(), "case#%d", caseNum)
		require.EqualValues(t, c.expectedCode, v.Code(), "case#%d", caseNum)
	}
}

func TestParseVersionFromCode(t *testing.T) {
	cases := []struct {
		code        uint32
		valid       bool
		expectedStr string
	}{
		{code: 0, valid: true, expectedStr: "0.0.0"},
		{code: 1, valid: true, expectedStr: "0.0.1"},
		{code: 10, valid: true, expectedStr: "0.0.10"},
		{code: 99, valid: true, expectedStr: "0.0.99"},
		{code: 100, valid: true, expectedStr: "0.1.0"},
		{code: 101, valid: true, expectedStr: "0.1.1"},
		{code: 110, valid: true, expectedStr: "0.1.10"},
		{code: 199, valid: true, expectedStr: "0.1.99"},
		{code: 99900, valid: true, expectedStr: "0.999.0"},
		{code: 99901, valid: true, expectedStr: "0.999.1"},
		{code: 99910, valid: true, expectedStr: "0.999.10"},
		{code: 99999, valid: true, expectedStr: "0.999.99"},
		{code: 100000, valid: true, expectedStr: "1.0.0"},
		{code: 100001, valid: true, expectedStr: "1.0.1"},
		{code: 100099, valid: true, expectedStr: "1.0.99"},
		{code: 100100, valid: true, expectedStr: "1.1.0"},
		{code: 100101, valid: true, expectedStr: "1.1.1"},
		{code: 100199, valid: true, expectedStr: "1.1.99"},
		{code: 199900, valid: true, expectedStr: "1.999.0"},
		{code: 199901, valid: true, expectedStr: "1.999.1"},
		{code: 199999, valid: true, expectedStr: "1.999.99"},
		{code: 4294800000, valid: true, expectedStr: "42948.0.0"},
		{code: 4294800001, valid: true, expectedStr: "42948.0.1"},
		{code: 4294800099, valid: true, expectedStr: "42948.0.99"},
		{code: 4294800100, valid: true, expectedStr: "42948.1.0"},
		{code: 4294800101, valid: true, expectedStr: "42948.1.1"},
		{code: 4294800199, valid: true, expectedStr: "42948.1.99"},
		{code: 4294899900, valid: true, expectedStr: "42948.999.0"},
		{code: 4294899901, valid: true, expectedStr: "42948.999.1"},
		{code: 4294899999, valid: true, expectedStr: "42948.999.99"},
		{code: 4294900000, valid: false},
	}

	for i, c := range cases {
		caseNum := i + 1

		v, err := versioning.ParseVersionFromCode(c.code)

		if !c.valid {
			require.Error(t, err, "case#%d", caseNum)
			continue
		}

		require.NoError(t, err, "case#%d", caseNum)
		require.EqualValues(t, c.expectedStr, v.String(), "case#%d", caseNum)
	}
}