package collector

import (
	"os"
	"testing"
	"time"

	"codeberg.org/pata1704/guenther/internal/config"
	"codeberg.org/pata1704/guenther/pkg/types"
	"github.com/stretchr/testify/assert"
)

func TestLogCollector_ProcessLine(t *testing.T) {
	// 1. Create temporary log file
	tmpFile, err := os.CreateTemp("", "test_log_*.log")
	assert.NoError(t, err)
	defer os.Remove(tmpFile.Name())

	outputChan := make(chan types.LogEvent, 10)
	healthChan := make(chan types.StageHealth, 10)

	cfg := &config.Config{}
	cfg.Ingestion.LogPath = tmpFile.Name()
	cfg.Drain.Depth = 4
	cfg.Drain.SimThreshold = 0.5
	cfg.Drain.MaxChildren = 100
	collector := NewLogCollector(cfg, outputChan, healthChan)

	// 2. Test line processing with specific regex patterns
	testLine := "2026-02-26 13:00:00.123456 INFO Transfer from 192.168.1.1:8080 completed (duration=1.23)"
	collector.processLine(testLine)

	select {
	case ev := <-outputChan:
		assert.Equal(t, "INFO", ev.Severity)
		assert.Greater(t, ev.TemplateID, 0)

		t.Logf("Extracted parameters: %v", ev.Params)

		// Unconfigured Drain3 template yields empty map
		assert.GreaterOrEqual(t, len(ev.Params), 0)
	case <-time.After(1 * time.Second):
		t.Fatal("Timeout waiting for LogEvent")
	}
}