package tracex

//
// All the possible events
//

import (
	"crypto/x509"
	"net/http"
	"time"

	"github.com/ooni/probe-cli/v3/internal/netxlite"
)

// Event is one of the events within a trace.
type Event interface {
	// Value returns the event value
	Value() *EventValue

	// Name returns the event name
	Name() string
}

// EventTLSHandshakeStart is the beginning of the TLS handshake.
type EventTLSHandshakeStart struct {
	V *EventValue
}

func (ev *EventTLSHandshakeStart) Value() *EventValue {
	return ev.V
}

func (ev *EventTLSHandshakeStart) Name() string {
	return "tls_handshake_start"
}

// EventTLSHandshakeDone is the end of the TLS handshake.
type EventTLSHandshakeDone struct {
	V *EventValue
}

func (ev *EventTLSHandshakeDone) Value() *EventValue {
	return ev.V
}

func (ev *EventTLSHandshakeDone) Name() string {
	return "tls_handshake_done"
}

// EventResolveStart is the beginning of a DNS lookup operation.
type EventResolveStart struct {
	V *EventValue
}

func (ev *EventResolveStart) Value() *EventValue {
	return ev.V
}

func (ev *EventResolveStart) Name() string {
	return "resolve_start"
}

// EventResolveDone is the end of a DNS lookup operation.
type EventResolveDone struct {
	V *EventValue
}

func (ev *EventResolveDone) Value() *EventValue {
	return ev.V
}

func (ev *EventResolveDone) Name() string {
	return "resolve_done"
}

// EventDNSRoundTripStart is the start of a DNS round trip.
type EventDNSRoundTripStart struct {
	V *EventValue
}

func (ev *EventDNSRoundTripStart) Value() *EventValue {
	return ev.V
}

func (ev *EventDNSRoundTripStart) Name() string {
	return "dns_round_trip_start"
}

// EventDNSRoundTripDone is the end of a DNS round trip.
type EventDNSRoundTripDone struct {
	V *EventValue
}

func (ev *EventDNSRoundTripDone) Value() *EventValue {
	return ev.V
}

func (ev *EventDNSRoundTripDone) Name() string {
	return "dns_round_trip_done"
}

// EventQUICHandshakeStart is the start of a QUIC handshake.
type EventQUICHandshakeStart struct {
	V *EventValue
}

func (ev *EventQUICHandshakeStart) Value() *EventValue {
	return ev.V
}

func (ev *EventQUICHandshakeStart) Name() string {
	return "quic_handshake_start"
}

// EventQUICHandshakeDone is the end of a QUIC handshake.
type EventQUICHandshakeDone struct {
	V *EventValue
}

func (ev *EventQUICHandshakeDone) Value() *EventValue {
	return ev.V
}

func (ev *EventQUICHandshakeDone) Name() string {
	return "quic_handshake_done"
}

// EventWriteToOperation summarizes the WriteTo operation.
type EventWriteToOperation struct {
	V *EventValue
}

func (ev *EventWriteToOperation) Value() *EventValue {
	return ev.V
}

func (ev *EventWriteToOperation) Name() string {
	return netxlite.WriteToOperation
}

// EventReadFromOperation summarizes the ReadFrom operation.
type EventReadFromOperation struct {
	V *EventValue
}

func (ev *EventReadFromOperation) Value() *EventValue {
	return ev.V
}

func (ev *EventReadFromOperation) Name() string {
	return netxlite.ReadFromOperation
}

// EventHTTPTransactionStart is the beginning of an HTTP transaction.
type EventHTTPTransactionStart struct {
	V *EventValue
}

func (ev *EventHTTPTransactionStart) Value() *EventValue {
	return ev.V
}

func (ev *EventHTTPTransactionStart) Name() string {
	return "http_transaction_start"
}

// EventHTTPTransactionDone is the end of an HTTP transaction.
type EventHTTPTransactionDone struct {
	V *EventValue
}

func (ev *EventHTTPTransactionDone) Value() *EventValue {
	return ev.V
}

func (ev *EventHTTPTransactionDone) Name() string {
	return "http_transaction_done"
}

// EventConnectOperation contains information about the connect operation.
type EventConnectOperation struct {
	V *EventValue
}

func (ev *EventConnectOperation) Value() *EventValue {
	return ev.V
}

func (ev *EventConnectOperation) Name() string {
	return netxlite.ConnectOperation
}

// EventReadOperation contains information about a read operation.
type EventReadOperation struct {
	V *EventValue
}

func (ev *EventReadOperation) Value() *EventValue {
	return ev.V
}

func (ev *EventReadOperation) Name() string {
	return netxlite.ReadOperation
}

// EventWriteOperation contains information about a write operation.
type EventWriteOperation struct {
	V *EventValue
}

func (ev *EventWriteOperation) Value() *EventValue {
	return ev.V
}

func (ev *EventWriteOperation) Name() string {
	return netxlite.WriteOperation
}

// Event is one of the events within a trace
type EventValue struct {
	Addresses                   []string            `json:",omitempty"`
	Address                     string              `json:",omitempty"`
	DNSQuery                    []byte              `json:",omitempty"`
	DNSResponse                 []byte              `json:",omitempty"`
	Data                        []byte              `json:",omitempty"`
	Duration                    time.Duration       `json:",omitempty"`
	Err                         error               `json:",omitempty"`
	HTTPMethod                  string              `json:",omitempty"`
	HTTPRequestHeaders          http.Header         `json:",omitempty"`
	HTTPResponseHeaders         http.Header         `json:",omitempty"`
	HTTPResponseBody            []byte              `json:",omitempty"`
	HTTPResponseBodyIsTruncated bool                `json:",omitempty"`
	HTTPStatusCode              int                 `json:",omitempty"`
	HTTPURL                     string              `json:",omitempty"`
	Hostname                    string              `json:",omitempty"`
	NoTLSVerify                 bool                `json:",omitempty"`
	NumBytes                    int                 `json:",omitempty"`
	Proto                       string              `json:",omitempty"`
	TLSServerName               string              `json:",omitempty"`
	TLSCipherSuite              string              `json:",omitempty"`
	TLSNegotiatedProto          string              `json:",omitempty"`
	TLSNextProtos               []string            `json:",omitempty"`
	TLSPeerCerts                []*x509.Certificate `json:",omitempty"`
	TLSVersion                  string              `json:",omitempty"`
	Time                        time.Time           `json:",omitempty"`
	Transport                   string              `json:",omitempty"`
}