package internal

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

	"github.com/databricks/cli/libs/auth"
	"github.com/databricks/databricks-sdk-go"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

func TestAccBundleInitErrorOnUnknownFields(t *testing.T) {
	t.Log(GetEnvOrSkipTest(t, "CLOUD_ENV"))

	tmpDir := t.TempDir()
	_, _, err := RequireErrorRun(t, "bundle", "init", "./testdata/init/field-does-not-exist", "--output-dir", tmpDir)
	assert.EqualError(t, err, "failed to compute file content for bar.tmpl. variable \"does_not_exist\" not defined")
}

func TestAccBundleInitHelpers(t *testing.T) {
	env := GetEnvOrSkipTest(t, "CLOUD_ENV")
	t.Log(env)

	w, err := databricks.NewWorkspaceClient(&databricks.Config{})
	require.NoError(t, err)

	me, err := w.CurrentUser.Me(context.Background())
	require.NoError(t, err)

	var smallestNode string
	switch env {
	case "azure":
		smallestNode = "Standard_D3_v2"
	case "gcp":
		smallestNode = "n1-standard-4"
	default:
		smallestNode = "i3.xlarge"
	}

	tests := []struct {
		funcName string
		expected string
	}{
		{
			funcName: "{{short_name}}",
			expected: auth.GetShortUserName(me.UserName),
		},
		{
			funcName: "{{user_name}}",
			expected: me.UserName,
		},
		{
			funcName: "{{workspace_host}}",
			expected: w.Config.Host,
		},
		{
			funcName: "{{is_service_principal}}",
			expected: strconv.FormatBool(auth.IsServicePrincipal(me.Id)),
		},
		{
			funcName: "{{smallest_node_type}}",
			expected: smallestNode,
		},
	}

	for _, test := range tests {
		// Setup template to test the helper function.
		tmpDir := t.TempDir()
		tmpDir2 := t.TempDir()

		err := os.Mkdir(filepath.Join(tmpDir, "template"), 0755)
		require.NoError(t, err)
		err = os.WriteFile(filepath.Join(tmpDir, "template", "foo.txt.tmpl"), []byte(test.funcName), 0644)
		require.NoError(t, err)
		err = os.WriteFile(filepath.Join(tmpDir, "databricks_template_schema.json"), []byte("{}"), 0644)
		require.NoError(t, err)

		// Run bundle init.
		RequireSuccessfulRun(t, "bundle", "init", tmpDir, "--output-dir", tmpDir2)

		// Assert that the helper function was correctly computed.
		assertLocalFileContents(t, filepath.Join(tmpDir2, "foo.txt"), test.expected)
	}
}