package configure_test

import (
	"context"
	"os"
	"path/filepath"
	"runtime"
	"testing"

	"github.com/databricks/cli/cmd"
	"github.com/stretchr/testify/assert"
	"gopkg.in/ini.v1"
)

func assertKeyValueInSection(t *testing.T, section *ini.Section, keyName, expectedValue string) {
	key, err := section.GetKey(keyName)
	if assert.NoError(t, err) {
		assert.Equal(t, expectedValue, key.Value())
	}
}

func setup(t *testing.T) string {
	tempHomeDir := t.TempDir()
	homeEnvVar := "HOME"
	if runtime.GOOS == "windows" {
		homeEnvVar = "USERPROFILE"
	}
	t.Setenv(homeEnvVar, tempHomeDir)
	t.Setenv("DATABRICKS_CONFIG_FILE", "")
	t.Setenv("DATABRICKS_TOKEN", "")
	return tempHomeDir
}

func getTempFileWithContent(t *testing.T, tempHomeDir string, content string) *os.File {
	inp, err := os.CreateTemp(tempHomeDir, "input")
	assert.NoError(t, err)
	_, err = inp.WriteString(content)
	assert.NoError(t, err)
	err = inp.Sync()
	assert.NoError(t, err)
	_, err = inp.Seek(0, 0)
	assert.NoError(t, err)
	return inp
}

func TestDefaultConfigureNoInteractive(t *testing.T) {
	ctx := context.Background()
	tempHomeDir := setup(t)
	inp := getTempFileWithContent(t, tempHomeDir, "token\n")
	oldStdin := os.Stdin
	defer inp.Close()
	t.Cleanup(func() {
		os.Stdin = oldStdin
	})
	os.Stdin = inp

	cmd := cmd.New(ctx)
	cmd.SetArgs([]string{"configure", "--token", "--host", "https://host"})

	err := cmd.ExecuteContext(ctx)
	assert.NoError(t, err)

	cfgPath := filepath.Join(tempHomeDir, ".databrickscfg")
	_, err = os.Stat(cfgPath)
	assert.NoError(t, err)

	cfg, err := ini.Load(cfgPath)
	assert.NoError(t, err)

	defaultSection, err := cfg.GetSection("DEFAULT")
	assert.NoError(t, err)

	assertKeyValueInSection(t, defaultSection, "host", "https://host")
	assertKeyValueInSection(t, defaultSection, "token", "token")
}

func TestConfigFileFromEnvNoInteractive(t *testing.T) {
	//TODO: Replace with similar test code from go SDK, once we start using it directly
	ctx := context.Background()
	tempHomeDir := setup(t)
	defaultCfgPath := filepath.Join(tempHomeDir, ".databrickscfg")
	cfgPath := filepath.Join(tempHomeDir, "overwrite-databricks-cfg")
	t.Setenv("DATABRICKS_CONFIG_FILE", cfgPath)

	inp := getTempFileWithContent(t, tempHomeDir, "token\n")
	defer inp.Close()
	oldStdin := os.Stdin
	t.Cleanup(func() { os.Stdin = oldStdin })
	os.Stdin = inp

	cmd := cmd.New(ctx)
	cmd.SetArgs([]string{"configure", "--token", "--host", "https://host"})

	err := cmd.ExecuteContext(ctx)
	assert.NoError(t, err)

	_, err = os.Stat(cfgPath)
	assert.NoError(t, err)

	_, err = os.Stat(defaultCfgPath)
	if runtime.GOOS == "windows" {
		assert.ErrorContains(t, err, "cannot find the file specified")
	} else {
		assert.ErrorContains(t, err, "no such file or directory")
	}

	cfg, err := ini.Load(cfgPath)
	assert.NoError(t, err)

	defaultSection, err := cfg.GetSection("DEFAULT")
	assert.NoError(t, err)

	assertKeyValueInSection(t, defaultSection, "host", "https://host")
	assertKeyValueInSection(t, defaultSection, "token", "token")
}

func TestEnvVarsConfigureNoInteractive(t *testing.T) {
	ctx := context.Background()
	tempHomeDir := setup(t)
	cfgPath := filepath.Join(tempHomeDir, ".databrickscfg")
	inp := getTempFileWithContent(t, tempHomeDir, "token\n")
	defer inp.Close()
	oldStdin := os.Stdin
	t.Cleanup(func() { os.Stdin = oldStdin })
	os.Stdin = inp

	t.Setenv("DATABRICKS_HOST", "https://host")
	t.Setenv("DATABRICKS_AUTH_TYPE", "metadata-service")
	t.Setenv("DATABRICKS_METADATA_SERVICE_URL", "https://metadata")

	cmd := cmd.New(ctx)
	cmd.SetArgs([]string{"configure", "--token"})

	err := cmd.ExecuteContext(ctx)
	assert.NoError(t, err)

	_, err = os.Stat(cfgPath)
	assert.NoError(t, err)

	cfg, err := ini.Load(cfgPath)
	assert.NoError(t, err)

	defaultSection, err := cfg.GetSection("DEFAULT")
	assert.NoError(t, err)

	assertKeyValueInSection(t, defaultSection, "host", "https://host")
	assertKeyValueInSection(t, defaultSection, "token", "token")

	// We should only save host and token for a profile, other env variables should not be saved
	_, err = defaultSection.GetKey("auth_type")
	assert.NotNil(t, err)
	_, err = defaultSection.GetKey("metadata_service_url")
	assert.NotNil(t, err)
}

func TestEnvVarsConfigureNoArgsNoInteractive(t *testing.T) {
	ctx := context.Background()
	tempHomeDir := setup(t)
	cfgPath := filepath.Join(tempHomeDir, ".databrickscfg")

	t.Setenv("DATABRICKS_HOST", "https://host")
	t.Setenv("DATABRICKS_TOKEN", "secret")

	cmd := cmd.New(ctx)
	cmd.SetArgs([]string{"configure"})

	err := cmd.ExecuteContext(ctx)
	assert.NoError(t, err)

	_, err = os.Stat(cfgPath)
	assert.NoError(t, err)

	cfg, err := ini.Load(cfgPath)
	assert.NoError(t, err)

	defaultSection, err := cfg.GetSection("DEFAULT")
	assert.NoError(t, err)

	assertKeyValueInSection(t, defaultSection, "host", "https://host")
	assertKeyValueInSection(t, defaultSection, "token", "secret")
}

func TestCustomProfileConfigureNoInteractive(t *testing.T) {
	ctx := context.Background()
	tempHomeDir := setup(t)
	cfgPath := filepath.Join(tempHomeDir, ".databrickscfg")
	inp := getTempFileWithContent(t, tempHomeDir, "token\n")
	defer inp.Close()
	oldStdin := os.Stdin
	t.Cleanup(func() { os.Stdin = oldStdin })
	os.Stdin = inp

	cmd := cmd.New(ctx)
	cmd.SetArgs([]string{"configure", "--token", "--host", "https://host", "--profile", "CUSTOM"})

	err := cmd.ExecuteContext(ctx)
	assert.NoError(t, err)

	_, err = os.Stat(cfgPath)
	assert.NoError(t, err)

	cfg, err := ini.Load(cfgPath)
	assert.NoError(t, err)

	defaultSection, err := cfg.GetSection("CUSTOM")
	assert.NoError(t, err)

	assertKeyValueInSection(t, defaultSection, "host", "https://host")
	assertKeyValueInSection(t, defaultSection, "token", "token")
}
