package notification

import (
	"path/filepath"
	"testing"
	"time"

	"galaxy/notification/internal/api/intentstream"
	"galaxy/notificationintent"

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

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

	readme := loadTextFile(t, "README.md")
	runtimeDoc := loadTextFile(t, filepath.Join("docs", "runtime.md"))
	examplesDoc := loadTextFile(t, filepath.Join("docs", "examples.md"))
	docsIndex := loadTextFile(t, filepath.Join("docs", "README.md"))
	architecture := loadTextFile(t, filepath.Join("..", "ARCHITECTURE.md"))
	geoProfileReadme := loadTextFile(t, filepath.Join("..", "geoprofile", "README.md"))

	require.Contains(t, docsIndex, "- [Runtime and components](runtime.md)")
	require.Contains(t, docsIndex, "- [Configuration and contract examples](examples.md)")

	for _, content := range []string{readme, runtimeDoc, architecture, geoProfileReadme} {
		normalizedContent := normalizeWhitespace(content)
		require.Contains(t, normalizedContent, normalizeWhitespace("`galaxy/notificationintent`"))
		require.Contains(t, normalizedContent, normalizeWhitespace("notification degradation"))
	}
	require.Contains(t, normalizeWhitespace(readme), normalizeWhitespace("producer publication uses plain `XADD` without stream trimming or hidden helper retries"))
	require.Contains(t, normalizeWhitespace(examplesDoc), normalizeWhitespace("redis-cli XADD notification:intents"))
}

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

	for _, original := range compatibleProducerIntents(t) {
		original := original
		t.Run(original.NotificationType.String()+"/"+original.AudienceKind.String(), func(t *testing.T) {
			t.Parallel()

			values, err := original.Values()
			require.NoError(t, err)

			decoded, err := intentstream.DecodeIntent(values)
			require.NoError(t, err)
			require.Equal(t, original.NotificationType, decoded.NotificationType)
			require.Equal(t, original.Producer, decoded.Producer)
			require.Equal(t, original.AudienceKind, decoded.AudienceKind)
			require.Equal(t, original.RecipientUserIDs, decoded.RecipientUserIDs)
			require.Equal(t, original.IdempotencyKey, decoded.IdempotencyKey)
			require.Equal(t, original.OccurredAt, decoded.OccurredAt)
			require.JSONEq(t, original.PayloadJSON, decoded.PayloadJSON)
		})
	}
}

func compatibleProducerIntents(t *testing.T) []notificationintent.Intent {
	t.Helper()

	metadata := notificationintent.Metadata{
		IdempotencyKey: "idempotency-1",
		OccurredAt:     time.UnixMilli(1775121700000),
	}

	builders := []func() (notificationintent.Intent, error){
		func() (notificationintent.Intent, error) {
			return notificationintent.NewGeoReviewRecommendedIntent(metadata, notificationintent.GeoReviewRecommendedPayload{
				UserID:                 "user-1",
				UserEmail:              "pilot@example.com",
				ObservedCountry:        "DE",
				UsualConnectionCountry: "PL",
				ReviewReason:           "country_mismatch",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewGameTurnReadyIntent(metadata, []string{"user-1", "user-2"}, notificationintent.GameTurnReadyPayload{
				GameID:     "game-1",
				GameName:   "Nebula Clash",
				TurnNumber: 54,
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewGameFinishedIntent(metadata, []string{"user-1", "user-2"}, notificationintent.GameFinishedPayload{
				GameID:          "game-1",
				GameName:        "Nebula Clash",
				FinalTurnNumber: 55,
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewGameGenerationFailedIntent(metadata, notificationintent.GameGenerationFailedPayload{
				GameID:        "game-1",
				GameName:      "Nebula Clash",
				FailureReason: "engine_timeout",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyRuntimePausedAfterStartIntent(metadata, notificationintent.LobbyRuntimePausedAfterStartPayload{
				GameID:   "game-1",
				GameName: "Nebula Clash",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewPrivateLobbyApplicationSubmittedIntent(metadata, "owner-1", notificationintent.LobbyApplicationSubmittedPayload{
				GameID:          "game-1",
				GameName:        "Nebula Clash",
				ApplicantUserID: "user-2",
				ApplicantName:   "Nova Pilot",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewPublicLobbyApplicationSubmittedIntent(metadata, notificationintent.LobbyApplicationSubmittedPayload{
				GameID:          "game-1",
				GameName:        "Nebula Clash",
				ApplicantUserID: "user-2",
				ApplicantName:   "Nova Pilot",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyMembershipApprovedIntent(metadata, "applicant-1", notificationintent.LobbyMembershipApprovedPayload{
				GameID:   "game-1",
				GameName: "Nebula Clash",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyMembershipRejectedIntent(metadata, "applicant-1", notificationintent.LobbyMembershipRejectedPayload{
				GameID:   "game-1",
				GameName: "Nebula Clash",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyMembershipBlockedIntent(metadata, "owner-1", notificationintent.LobbyMembershipBlockedPayload{
				GameID:             "game-1",
				GameName:           "Nebula Clash",
				MembershipUserID:   "user-2",
				MembershipUserName: "player-aabbccdd",
				Reason:             "permanent_blocked",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyInviteCreatedIntent(metadata, "invited-1", notificationintent.LobbyInviteCreatedPayload{
				GameID:        "game-1",
				GameName:      "Nebula Clash",
				InviterUserID: "owner-1",
				InviterName:   "Owner Pilot",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyInviteRedeemedIntent(metadata, "owner-1", notificationintent.LobbyInviteRedeemedPayload{
				GameID:        "game-1",
				GameName:      "Nebula Clash",
				InviteeUserID: "invitee-1",
				InviteeName:   "Nova Pilot",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyInviteExpiredIntent(metadata, "owner-1", notificationintent.LobbyInviteExpiredPayload{
				GameID:        "game-1",
				GameName:      "Nebula Clash",
				InviteeUserID: "invitee-1",
				InviteeName:   "Nova Pilot",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyRaceNameRegistrationEligibleIntent(metadata, "user-7", notificationintent.LobbyRaceNameRegistrationEligiblePayload{
				GameID:          "game-1",
				GameName:        "Nebula Clash",
				RaceName:        "Skylancer",
				EligibleUntilMs: 1775208100000,
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyRaceNameRegisteredIntent(metadata, "user-8", notificationintent.LobbyRaceNameRegisteredPayload{
				RaceName: "Skylancer",
			})
		},
		func() (notificationintent.Intent, error) {
			return notificationintent.NewLobbyRaceNameRegistrationDeniedIntent(metadata, "user-9", notificationintent.LobbyRaceNameRegistrationDeniedPayload{
				GameID:   "game-1",
				GameName: "Nebula Clash",
				RaceName: "Skylancer",
				Reason:   "capability_not_met",
			})
		},
	}

	intents := make([]notificationintent.Intent, 0, len(builders))
	for _, build := range builders {
		intent, err := build()
		require.NoError(t, err)
		intents = append(intents, intent)
	}

	return intents
}