// Copyright IBM Corp. 2020, 2026
// SPDX-License-Identifier: MPL-2.0

package fs

import (
	"fmt"
	"path/filepath"
	"testing"

	"github.com/hashicorp/hc-install/product"
)

func TestAnyVersionValidate(t *testing.T) {
	t.Parallel()

	testCases := map[string]struct {
		av          AnyVersion
		expectedErr error
	}{
		"no-fields-set": {
			av:          AnyVersion{},
			expectedErr: fmt.Errorf("must use either ExactBinPath or Product + ExtraPaths"),
		},
		"ExactBinPath-and-Product": {
			av: AnyVersion{
				ExactBinPath: "/test",
				Product:      &product.Terraform,
			},
			expectedErr: fmt.Errorf("use either ExactBinPath or Product + ExtraPaths, not both"),
		},
		"ExactBinPath-empty": {
			av: AnyVersion{
				ExactBinPath: "",
			},
			expectedErr: fmt.Errorf("must use either ExactBinPath or Product + ExtraPaths"),
		},
		"ExactBinPath-relative": {
			av: AnyVersion{
				ExactBinPath: "test",
			},
			expectedErr: fmt.Errorf("expected ExactBinPath (\"test\") to be an absolute path"),
		},
		"ExactBinPath-absolute": {
			av: AnyVersion{
				ExactBinPath: filepath.Join(t.TempDir(), "test"),
			},
		},
		"Product-incorrect-binary-name": {
			av: AnyVersion{
				Product: &product.Product{
					BinaryName: func() string { return "invalid!" },
					Name:       product.Terraform.Name,
				},
			},
			expectedErr: fmt.Errorf("invalid binary name: \"invalid!\""),
		},
		"Product-valid": {
			av: AnyVersion{
				Product: &product.Terraform,
			},
		},
	}

	for name, testCase := range testCases {
		name, testCase := name, testCase

		t.Run(name, func(t *testing.T) {
			t.Parallel()

			err := testCase.av.Validate()

			if err == nil && testCase.expectedErr != nil {
				t.Fatalf("expected error: %s, got no error", testCase.expectedErr)
			}

			if err != nil && testCase.expectedErr == nil {
				t.Fatalf("expected no error, got error: %s", err)
			}

			if err != nil && testCase.expectedErr != nil && err.Error() != testCase.expectedErr.Error() {
				t.Fatalf("expected error: %s, got error: %s", testCase.expectedErr, err)
			}
		})
	}
}
