package poster

import (
	"path/filepath"
	"testing"

	"pete/internal/storage"

	"maunium.net/go/mautrix/id"
)

func setupTrackerTestDB(t *testing.T) {
	t.Helper()
	dbPath := filepath.Join(t.TempDir(), "test.db")
	if err := storage.Init(dbPath); err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { storage.Close() })
}

func TestHandleReaction_KnownPost(t *testing.T) {
	setupTrackerTestDB(t)

	// Insert a post log entry
	storage.InsertPostLog("story-1", "tech", "$post1:example.org", "")

	// Handle a reaction to that post
	HandleReaction(
		id.RoomID("!room:example.org"),
		id.EventID("$react1:example.org"),
		id.EventID("$post1:example.org"),
		"👍",
		id.UserID("@user:example.org"),
	)

	// Verify reaction was recorded
	var count int
	storage.Get().QueryRow(`SELECT COUNT(*) FROM reactions WHERE post_guid = ?`, "story-1").Scan(&count)
	if count != 1 {
		t.Errorf("expected 1 reaction, got %d", count)
	}
}

func TestHandleReaction_UnknownPost(t *testing.T) {
	setupTrackerTestDB(t)

	// Handle a reaction to an unknown event — should not crash or insert
	HandleReaction(
		id.RoomID("!room:example.org"),
		id.EventID("$react1:example.org"),
		id.EventID("$unknown:example.org"),
		"👍",
		id.UserID("@user:example.org"),
	)

	var count int
	storage.Get().QueryRow(`SELECT COUNT(*) FROM reactions`).Scan(&count)
	if count != 0 {
		t.Errorf("expected 0 reactions for unknown post, got %d", count)
	}
}

func TestHandleReaction_DuplicateIgnored(t *testing.T) {
	setupTrackerTestDB(t)

	storage.InsertPostLog("story-1", "tech", "$post1:example.org", "")

	// Send same reaction twice
	HandleReaction(
		id.RoomID("!room:example.org"),
		id.EventID("$react1:example.org"),
		id.EventID("$post1:example.org"),
		"👍",
		id.UserID("@user:example.org"),
	)
	HandleReaction(
		id.RoomID("!room:example.org"),
		id.EventID("$react1:example.org"),
		id.EventID("$post1:example.org"),
		"👍",
		id.UserID("@user:example.org"),
	)

	var count int
	storage.Get().QueryRow(`SELECT COUNT(*) FROM reactions`).Scan(&count)
	if count != 1 {
		t.Errorf("expected 1 reaction (deduped), got %d", count)
	}
}