package publishpush

import (
	"testing"
	"time"

	"galaxy/notification/internal/api/intentstream"
	"galaxy/notification/internal/service/acceptintent"
	"galaxy/transcoder"

	"github.com/stretchr/testify/require"
)

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

	now := time.UnixMilli(1775121700000).UTC()
	tests := []struct {
		name             string
		notificationType intentstream.NotificationType
		payloadJSON      string
		assertPayload    func(*testing.T, []byte)
	}{
		{
			name:             "game turn ready",
			notificationType: intentstream.NotificationTypeGameTurnReady,
			payloadJSON:      `{"game_id":"game-1","game_name":"Nebula Clash","turn_number":54}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToGameTurnReadyEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-1", event.GameID)
				require.Equal(t, int64(54), event.TurnNumber)
			},
		},
		{
			name:             "game finished",
			notificationType: intentstream.NotificationTypeGameFinished,
			payloadJSON:      `{"final_turn_number":81,"game_id":"game-2","game_name":"Nova"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToGameFinishedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-2", event.GameID)
				require.Equal(t, int64(81), event.FinalTurnNumber)
			},
		},
		{
			name:             "lobby application submitted",
			notificationType: intentstream.NotificationTypeLobbyApplicationSubmitted,
			payloadJSON:      `{"applicant_name":"Nova Pilot","applicant_user_id":"user-2","game_id":"game-3","game_name":"Orion Front"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyApplicationSubmittedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-3", event.GameID)
				require.Equal(t, "user-2", event.ApplicantUserID)
			},
		},
		{
			name:             "lobby membership approved",
			notificationType: intentstream.NotificationTypeLobbyMembershipApproved,
			payloadJSON:      `{"game_id":"game-4","game_name":"Ares"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyMembershipApprovedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-4", event.GameID)
			},
		},
		{
			name:             "lobby membership rejected",
			notificationType: intentstream.NotificationTypeLobbyMembershipRejected,
			payloadJSON:      `{"game_id":"game-5","game_name":"Atlas"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyMembershipRejectedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-5", event.GameID)
			},
		},
		{
			name:             "lobby invite created",
			notificationType: intentstream.NotificationTypeLobbyInviteCreated,
			payloadJSON:      `{"game_id":"game-6","game_name":"Vega","inviter_name":"Nova Pilot","inviter_user_id":"user-9"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyInviteCreatedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-6", event.GameID)
				require.Equal(t, "user-9", event.InviterUserID)
			},
		},
		{
			name:             "lobby invite redeemed",
			notificationType: intentstream.NotificationTypeLobbyInviteRedeemed,
			payloadJSON:      `{"game_id":"game-7","game_name":"Lyra","invitee_name":"Skipper","invitee_user_id":"user-10"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyInviteRedeemedEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-7", event.GameID)
				require.Equal(t, "user-10", event.InviteeUserID)
			},
		},
		{
			name:             "lobby race name registration eligible",
			notificationType: intentstream.NotificationTypeLobbyRaceNameRegistrationEligible,
			payloadJSON:      `{"eligible_until_ms":1775208100000,"game_id":"game-8","game_name":"Aurora","race_name":"Skylancer"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyRaceNameRegistrationEligibleEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "game-8", event.GameID)
				require.Equal(t, "Skylancer", event.RaceName)
				require.Equal(t, int64(1775208100000), event.EligibleUntilMs)
			},
		},
		{
			name:             "lobby race name registered",
			notificationType: intentstream.NotificationTypeLobbyRaceNameRegistered,
			payloadJSON:      `{"race_name":"Skylancer"}`,
			assertPayload: func(t *testing.T, payload []byte) {
				t.Helper()
				event, err := transcoder.PayloadToLobbyRaceNameRegisteredEvent(payload)
				require.NoError(t, err)
				require.Equal(t, "Skylancer", event.RaceName)
			},
		},
	}

	for _, tt := range tests {
		tt := tt

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

			event, err := Encoder{}.Encode(
				acceptintent.NotificationRecord{
					NotificationID:     "1775121700000-0",
					NotificationType:   tt.notificationType,
					Producer:           tt.notificationType.ExpectedProducer(),
					AudienceKind:       intentstream.AudienceKindUser,
					RecipientUserIDs:   []string{"user-1"},
					PayloadJSON:        tt.payloadJSON,
					IdempotencyKey:     "idem-1",
					RequestFingerprint: "sha256:deadbeef",
					RequestID:          "request-1",
					TraceID:            "trace-1",
					OccurredAt:         now,
					AcceptedAt:         now,
					UpdatedAt:          now,
				},
				acceptintent.NotificationRoute{
					NotificationID: "1775121700000-0",
					RouteID:        "push:user:user-1",
					Channel:        intentstream.ChannelPush,
					RecipientRef:   "user:user-1",
					Status:         acceptintent.RouteStatusPending,
					MaxAttempts:    3,
					NextAttemptAt:  now,
					CreatedAt:      now,
					UpdatedAt:      now,
				},
			)
			require.NoError(t, err)
			require.Equal(t, "user-1", event.UserID)
			require.Equal(t, string(tt.notificationType), event.EventType)
			require.Equal(t, "1775121700000-0/push:user:user-1", event.EventID)
			require.Equal(t, "request-1", event.RequestID)
			require.Equal(t, "trace-1", event.TraceID)
			require.NotEmpty(t, event.PayloadBytes)
			tt.assertPayload(t, event.PayloadBytes)
		})
	}
}

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

	now := time.UnixMilli(1775121700000).UTC()
	_, err := Encoder{}.Encode(
		acceptintent.NotificationRecord{
			NotificationID:     "1775121700000-0",
			NotificationType:   intentstream.NotificationTypeGameTurnReady,
			Producer:           intentstream.ProducerGameMaster,
			AudienceKind:       intentstream.AudienceKindUser,
			RecipientUserIDs:   []string{"user-1"},
			PayloadJSON:        `{"game_id":"","game_name":"Nebula Clash","turn_number":0}`,
			IdempotencyKey:     "idem-1",
			RequestFingerprint: "sha256:deadbeef",
			OccurredAt:         now,
			AcceptedAt:         now,
			UpdatedAt:          now,
		},
		acceptintent.NotificationRoute{
			NotificationID: "1775121700000-0",
			RouteID:        "push:user:user-1",
			Channel:        intentstream.ChannelPush,
			RecipientRef:   "user:user-1",
			Status:         acceptintent.RouteStatusPending,
			MaxAttempts:    3,
			NextAttemptAt:  now,
			CreatedAt:      now,
			UpdatedAt:      now,
		},
	)
	require.Error(t, err)
	require.ErrorContains(t, err, "payload_encoding_failed")
}