package static_test

import (
	"context"
	"encoding/json"
	"fmt"
	"os"
	"testing"

	"github.com/hashicorp/boundary/api/credentials"
	"github.com/hashicorp/boundary/api/targets"
	"github.com/hashicorp/boundary/testing/internal/e2e"
	"github.com/hashicorp/boundary/testing/internal/e2e/boundary"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
)

// TestCliConnectTargetWithSsh uses the boundary cli to create a credential using boundary's
// built-in credential store. The test attaches that credential to a target and attempts to connect
// to that target using those credentials.
func TestCliConnectTargetWithSsh(t *testing.T) {
	e2e.MaybeSkipTest(t)
	c, err := loadConfig()
	require.NoError(t, err)

	ctx := context.Background()
	boundary.AuthenticateAdminCli(t, ctx)
	newOrgId := boundary.CreateNewOrgCli(t, ctx)
	newProjectId := boundary.CreateNewProjectCli(t, ctx, newOrgId)
	newHostCatalogId := boundary.CreateNewHostCatalogCli(t, ctx, newProjectId)
	newHostSetId := boundary.CreateNewHostSetCli(t, ctx, newHostCatalogId)
	newHostId := boundary.CreateNewHostCli(t, ctx, newHostCatalogId, c.TargetIp)
	boundary.AddHostToHostSetCli(t, ctx, newHostSetId, newHostId)
	newTargetId := boundary.CreateNewTargetCli(t, ctx, newProjectId, c.TargetPort)
	boundary.AddHostSourceToTargetCli(t, ctx, newTargetId, newHostSetId)
	newCredentialStoreId := boundary.CreateNewCredentialStoreStaticCli(t, ctx, newProjectId)

	// Create credentials
	output := e2e.RunCommand(ctx, "boundary",
		e2e.WithArgs(
			"credentials", "create", "ssh-private-key",
			"-credential-store-id", newCredentialStoreId,
			"-username", c.TargetSshUser,
			"-private-key", "file://"+c.TargetSshKeyPath,
			"-format", "json",
		),
	)
	require.NoError(t, output.Err, string(output.Stderr))
	var newCredentialsResult credentials.CredentialCreateResult
	err = json.Unmarshal(output.Stdout, &newCredentialsResult)
	require.NoError(t, err)
	newCredentialsId := newCredentialsResult.Item.Id
	t.Logf("Created Credentials: %s", newCredentialsId)

	// Add credentials to target
	output = e2e.RunCommand(ctx, "boundary",
		e2e.WithArgs(
			"targets", "add-credential-sources",
			"-id", newTargetId,
			"-brokered-credential-source", newCredentialsId,
		),
	)
	require.NoError(t, output.Err, string(output.Stderr))

	// Get credentials for target
	output = e2e.RunCommand(ctx, "boundary",
		e2e.WithArgs("targets", "authorize-session", "-id", newTargetId, "-format", "json"),
	)
	require.NoError(t, output.Err, string(output.Stderr))
	var newSessionAuthorizationResult targets.SessionAuthorizationResult
	err = json.Unmarshal(output.Stdout, &newSessionAuthorizationResult)
	require.NoError(t, err)

	newSessionAuthorization := newSessionAuthorizationResult.Item
	retrievedUser := fmt.Sprintf("%s", newSessionAuthorization.Credentials[0].Credential["username"])
	retrievedKey := fmt.Sprintf("%s\n", newSessionAuthorization.Credentials[0].Credential["private_key"])
	assert.Equal(t, c.TargetSshUser, retrievedUser)

	k, err := os.ReadFile(c.TargetSshKeyPath)
	require.NoError(t, err)
	require.Equal(t, string(k), retrievedKey)
	t.Log("Successfully retrieved credentials for target")

	// Connect to target using ssh option
	output = e2e.RunCommand(ctx, "boundary",
		e2e.WithArgs(
			"connect", "ssh",
			"-target-id", newTargetId, "--",
			"-o", "UserKnownHostsFile=/dev/null",
			"-o", "StrictHostKeyChecking=no",
			"-o", "IdentitiesOnly=yes", // forces the use of the provided key
		),
	)
	require.NoError(t, output.Err, string(output.Stderr))
	t.Log("Successfully connected to target")
}