package provider_test

import (
	"regexp"
	"testing"

	"github.com/hashicorp/terraform-plugin-testing/helper/resource"
)

const testMountProviderBlock = `
provider "dokploy" {
  host    = "https://dokploy.invalid"
  api_key = "not-used-plan-only"
}
`

// A `volume` mount without a volume_name is the dangerous case: Dokploy's
// generateVolumeMounts maps a null volumeName to `Source: ""`, which Docker
// reads as an anonymous volume. Every deploy then gets a brand-new volume and
// the previous one is orphaned, so the data silently does not survive.
//
// These validations run at plan time, so they need no Dokploy instance.
func TestMountValidation(t *testing.T) {
	for name, tc := range map[string]struct {
		config      string
		expectError *regexp.Regexp
	}{
		"volume without volume_name": {
			config: testMountProviderBlock + `
resource "dokploy_mount" "test" {
  type         = "volume"
  mount_path   = "/data"
  service_type = "application"
  service_id   = "app-123"
}`,
			expectError: regexp.MustCompile(`volume_name`),
		},
		"volume with empty volume_name": {
			config: testMountProviderBlock + `
resource "dokploy_mount" "test" {
  type         = "volume"
  mount_path   = "/data"
  volume_name  = ""
  service_type = "application"
  service_id   = "app-123"
}`,
			expectError: regexp.MustCompile(`volume_name`),
		},
		"bind without host_path": {
			config: testMountProviderBlock + `
resource "dokploy_mount" "test" {
  type         = "bind"
  mount_path   = "/data"
  service_type = "application"
  service_id   = "app-123"
}`,
			expectError: regexp.MustCompile(`host_path`),
		},
		"file without file_path": {
			config: testMountProviderBlock + `
resource "dokploy_mount" "test" {
  type         = "file"
  mount_path   = "/etc/app"
  content      = "hello"
  service_type = "application"
  service_id   = "app-123"
}`,
			expectError: regexp.MustCompile(`file_path`),
		},
		"volume_name set on a bind mount": {
			config: testMountProviderBlock + `
resource "dokploy_mount" "test" {
  type         = "bind"
  mount_path   = "/data"
  host_path    = "/srv/data"
  volume_name  = "stray"
  service_type = "application"
  service_id   = "app-123"
}`,
			expectError: regexp.MustCompile(`volume_name`),
		},
	} {
		t.Run(name, func(t *testing.T) {
			resource.UnitTest(t, resource.TestCase{
				ProtoV6ProviderFactories: protoV6ProviderFactories,
				Steps: []resource.TestStep{{
					Config:      tc.config,
					PlanOnly:    true,
					ExpectError: tc.expectError,
				}},
			})
		})
	}
}