package db_test

import (
	"path/filepath"
	"strings"
	"testing"

	"go.uber.org/fx/fxtest"
	"sneak.berlin/go/neoirc/internal/config"
	"sneak.berlin/go/neoirc/internal/db"
	"sneak.berlin/go/neoirc/internal/globals"
	"sneak.berlin/go/neoirc/internal/logger"
)

const wantBusyTimeoutMS = 5000

// TestDefaultDBURLSetsWALAndBusyTimeout opens a file database
// with the default URL's parameters the way the server does,
// and checks the journal mode and busy timeout it ends up with.
func TestDefaultDBURLSetsWALAndBusyTimeout(t *testing.T) {
	t.Parallel()

	_, params, _ := strings.Cut(config.DefaultDBURL, "?")
	dbURL := "file://" + filepath.Join(t.TempDir(), "state.db") +
		"?" + params

	lifecycle := fxtest.NewLifecycle(t)

	log, err := logger.New(lifecycle, logger.Params{
		Globals: &globals.Globals{},
	})
	if err != nil {
		t.Fatal(err)
	}

	database, err := db.New(lifecycle, db.Params{
		Logger: log,
		Config: &config.Config{DBURL: dbURL},
	})
	if err != nil {
		t.Fatal(err)
	}

	lifecycle.RequireStart()
	t.Cleanup(lifecycle.RequireStop)

	var journalMode string

	err = database.GetDB().QueryRowContext(
		t.Context(), "PRAGMA journal_mode",
	).Scan(&journalMode)
	if err != nil {
		t.Fatal(err)
	}

	if journalMode != "wal" {
		t.Errorf("journal_mode = %q, want %q", journalMode, "wal")
	}

	var busyTimeout int

	err = database.GetDB().QueryRowContext(
		t.Context(), "PRAGMA busy_timeout",
	).Scan(&busyTimeout)
	if err != nil {
		t.Fatal(err)
	}

	if busyTimeout != wantBusyTimeoutMS {
		t.Errorf(
			"busy_timeout = %d, want %d",
			busyTimeout, wantBusyTimeoutMS,
		)
	}
}