package notification

import (
	"path/filepath"
	"testing"

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

var expectedNotificationPushPublicationDocumentationSnippets = []string{
	"one long-lived `push` route publisher",
	"the `push` publisher claims only routes whose `route_id` starts with `push:`",
	"`Gateway` publication uses `XADD MAXLEN ~` with `NOTIFICATION_GATEWAY_CLIENT_EVENTS_STREAM_MAX_LEN`",
	"`event_id` equals `<notification_id>/<route_id>`",
	"`device_session_id` is intentionally omitted so `Gateway` fans the event out to every active stream of that user",
}

var expectedNotificationMailPublicationDocumentationSnippets = []string{
	"one long-lived `email` route publisher",
	"template-mode `email` publication toward `Mail Service`",
	"`Mail Service` publication uses plain `XADD` with no stream trimming",
	"`delivery_id` equals `<notification_id>/<route_id>`",
	"`idempotency_key` equals `notification:<notification_id>/<route_id>`",
	"`requested_at_ms` equals `accepted_at_ms`",
	"`payload_json.to` contains exactly one resolved recipient email",
	"`payload_json.cc`, `payload_json.bcc`, `payload_json.reply_to`, and `payload_json.attachments` are empty arrays in v1",
	"`email` publication failures are classified minimally as `payload_encoding_failed` and `mail_stream_publish_failed`",
}

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

	readme := loadTextFile(t, "README.md")
	flowsDoc := loadTextFile(t, filepath.Join("docs", "flows.md"))
	runtimeDoc := loadTextFile(t, filepath.Join("docs", "runtime.md"))
	docsIndex := loadTextFile(t, filepath.Join("docs", "README.md"))
	mailReadme := loadTextFile(t, filepath.Join("..", "mail", "README.md"))
	mailAsyncAPI := loadTextFile(t, filepath.Join("..", "mail", "api", "delivery-commands-asyncapi.yaml"))
	normalizedReadme := normalizeWhitespace(readme)
	normalizedFlowsDoc := normalizeWhitespace(flowsDoc)
	normalizedRuntimeDoc := normalizeWhitespace(runtimeDoc)
	normalizedMailReadme := normalizeWhitespace(mailReadme)

	require.Contains(t, docsIndex, "- [Main flows](flows.md)")
	require.Contains(t, docsIndex, "- [Runtime and components](runtime.md)")

	for _, snippet := range expectedNotificationPushPublicationDocumentationSnippets {
		normalizedSnippet := normalizeWhitespace(snippet)
		require.Contains(t, normalizedReadme, normalizedSnippet)
	}

	for _, snippet := range expectedNotificationMailPublicationDocumentationSnippets {
		normalizedSnippet := normalizeWhitespace(snippet)
		require.Contains(t, normalizedReadme, normalizedSnippet)
	}

	require.Contains(t, normalizedRuntimeDoc, normalizeWhitespace("processes only scheduled route IDs beginning with `push:`"))
	require.Contains(t, normalizedRuntimeDoc, normalizeWhitespace("processes only scheduled route IDs beginning with `email:`"))
	require.Contains(t, normalizedFlowsDoc, normalizeWhitespace("XADD MAXLEN ~ gateway client-event stream"))
	require.Contains(t, normalizedFlowsDoc, normalizeWhitespace("XADD mail:delivery_commands"))
	require.Contains(t, normalizedFlowsDoc, normalizeWhitespace("`payload_mode=template`"))
	require.Contains(t, normalizedReadme, normalizeWhitespace("`notification:route_leases:<notification_id>:<route_id>`"))
	require.Contains(t, normalizedReadme, normalizeWhitespace("`payload_encoding_failed`"))
	require.Contains(t, normalizedReadme, normalizeWhitespace("`gateway_stream_publish_failed`"))
	require.Contains(t, normalizedReadme, normalizeWhitespace("`mail_stream_publish_failed`"))

	require.Contains(t, normalizedMailReadme, normalizeWhitespace("- `requested_at_ms`"))
	require.Contains(t, normalizedMailReadme, normalizeWhitespace("`requested_at_ms` stores the publisher-side original request timestamp"))
	require.Contains(t, mailAsyncAPI, "requested_at_ms:")
	require.Contains(t, mailAsyncAPI, "payload_mode:")
}