package autotrack

import (
	"os"
	"strings"
	"syscall"
	"testing"
	"time"

	"ticktock/internal/config"
)

func TestRunFlushesOpenSegmentOnSignal(t *testing.T) {
	dir := t.TempDir()
	sigc := make(chan os.Signal, 1)
	sample := func() Sample {
		return Sample{Idle: 0, Raw: &Ctx{App: "TestApp", Title: "doc"}}
	}
	done := make(chan struct{})
	go func() {
		Run(dir, config.Tracking{PollSecs: 1, IdleGraceSecs: 900, MinSecs: 0}, sample, sigc)
		close(done)
	}()
	time.Sleep(50 * time.Millisecond) // let the first poll open a segment
	sigc <- syscall.SIGTERM
	select {
	case <-done:
	case <-time.After(2 * time.Second):
		t.Fatal("Run did not return after signal")
	}
	b, err := os.ReadFile(LogPath(dir, time.Now()))
	if err != nil {
		t.Fatalf("flush should have written today's log: %v", err)
	}
	line := strings.TrimSpace(string(b))
	if !strings.Contains(line, `"app": "TestApp"`) || !strings.Contains(line, `"idle": false`) {
		t.Errorf("flushed segment malformed: %s", line)
	}
}