package pg

// Create the test database: createdb terraform_backend_pg_test
// TF_ACC=1 GO111MODULE=on go test -v -mod=vendor -timeout=2m -parallel=4 github.com/hashicorp/terraform/backend/remote-state/pg

import (
	"database/sql"
	"fmt"
	"testing"

	"github.com/hashicorp/terraform/internal/backend"
	"github.com/hashicorp/terraform/internal/states/remote"
)

func TestRemoteClient_impl(t *testing.T) {
	var _ remote.Client = new(RemoteClient)
	var _ remote.ClientLocker = new(RemoteClient)
}

func TestRemoteClient(t *testing.T) {
	testACC(t)
	connStr := getDatabaseUrl()
	schemaName := fmt.Sprintf("terraform_%s", t.Name())
	dbCleaner, err := sql.Open("postgres", connStr)
	if err != nil {
		t.Fatal(err)
	}
	defer dbCleaner.Query(fmt.Sprintf("DROP SCHEMA IF EXISTS %s CASCADE", schemaName))

	config := backend.TestWrapConfig(map[string]interface{}{
		"conn_str":    connStr,
		"schema_name": schemaName,
	})
	b := backend.TestBackendConfig(t, New(), config).(*Backend)

	if b == nil {
		t.Fatal("Backend could not be configured")
	}

	s, err := b.StateMgr(backend.DefaultStateName)
	if err != nil {
		t.Fatal(err)
	}

	remote.TestClient(t, s.(*remote.State).Client)
}

func TestRemoteLocks(t *testing.T) {
	testACC(t)
	connStr := getDatabaseUrl()
	schemaName := fmt.Sprintf("terraform_%s", t.Name())
	dbCleaner, err := sql.Open("postgres", connStr)
	if err != nil {
		t.Fatal(err)
	}
	defer dbCleaner.Query(fmt.Sprintf("DROP SCHEMA IF EXISTS %s CASCADE", schemaName))

	config := backend.TestWrapConfig(map[string]interface{}{
		"conn_str":    connStr,
		"schema_name": schemaName,
	})

	b1 := backend.TestBackendConfig(t, New(), config).(*Backend)
	s1, err := b1.StateMgr(backend.DefaultStateName)
	if err != nil {
		t.Fatal(err)
	}

	b2 := backend.TestBackendConfig(t, New(), config).(*Backend)
	s2, err := b2.StateMgr(backend.DefaultStateName)
	if err != nil {
		t.Fatal(err)
	}

	remote.TestRemoteLocks(t, s1.(*remote.State).Client, s2.(*remote.State).Client)
}