package mock

import (
	"context"
	"testing"
	"time"

	"tera-clone/services/tera-api/internal/domain"
	"tera-clone/services/tera-api/internal/logstorage"
)

func TestReceivedKeywordFromSerialJournalNotDependentOnLogViewer(t *testing.T) {
	journal := &sequencedMemoryJournal{}
	delivery := &recordingAlarmDeliveryController{}
	store, err := NewStoreWithOptions(fixedClock, StoreOptions{LogJournal: journal, AlarmDeliveryController: delivery})
	if err != nil {
		t.Fatal(err)
	}
	rule := store.runningAlarms["port_ch20_keyword"]
	rule.Enabled = true
	rule.Trigger = "Invalid interface"
	rule.Delivery = []string{"web"}
	store.runningAlarms["port_ch20_keyword"] = rule
	now := fixedClock()
	appendRX := func(channel, direction, text string, matched bool) {
		t.Helper()
		now = now.Add(time.Millisecond)
		event := domain.PortLogEvent{Timestamp: now, Channel: channel, EventType: "traffic", Direction: direction, Actor: "tera-port-service", Message: "serial payload", Payload: []byte(text), PayloadBytes: len(text), PayloadEncoding: "base64", DisplayFormat: "ascii", AlarmTriggered: matched}
		if err := journal.Append(logstorage.ClassPort, now, event); err != nil {
			t.Fatal(err)
		}
	}
	evaluate := func() {
		t.Helper()
		if err := store.EvaluateOperationalAlarms(context.Background()); err != nil {
			t.Fatal(err)
		}
	}
	appendRX("CH20", "RX", "Invalid interface", false)
	evaluate()
	if len(delivery.requests) != 0 {
		t.Fatal("replayed old history on startup")
	}
	appendRX("CH20", "TX", "Invalid interface", false)
	appendRX("CH19", "RX", "Invalid interface", false)
	evaluate()
	if len(delivery.requests) != 0 {
		t.Fatal("matched wrong channel or TX")
	}
	appendRX("CH20", "RX", "\r\nInvalid inter", false)
	evaluate()
	if len(delivery.requests) != 0 {
		t.Fatal("matched incomplete keyword")
	}
	appendRX("CH20", "RX", "face\r\nEnter interface name", false)
	// A UI read advances its own journal cursor before the alarm evaluator.
	if _, err := store.PortLogEvents(context.Background(), domain.PortLogFilter{Channel: "CH20"}); err != nil {
		t.Fatal(err)
	}
	evaluate()
	evaluate()
	if len(delivery.requests) != 1 || delivery.requests[0].RuleID != "port_ch20_keyword" {
		t.Fatalf("requests=%+v", delivery.requests)
	}
	appendRX("CH20", "RX", "more prompt output", false)
	appendRX("CH20", "RX", "Invalid interface", true)
	evaluate()
	if len(delivery.requests) != 1 {
		t.Fatal("duplicate match or already processed API event")
	}
	rule.Enabled = false
	store.runningAlarms["port_ch20_keyword"] = rule
	appendRX("CH20", "RX", "Invalid interface", false)
	evaluate()
	if len(delivery.requests) != 1 {
		t.Fatal("disabled rule fired")
	}
	rule.Enabled = true
	rule.Trigger = "NEW KEYWORD"
	store.runningAlarms["port_ch20_keyword"] = rule
	appendRX("CH20", "RX", "Invalid interface", false)
	evaluate()
	appendRX("CH20", "RX", "new keyword", false)
	evaluate()
	if len(delivery.requests) != 2 {
		t.Fatal("updated case insensitive keyword not observed")
	}
}