package service

import (
	"context"
	"strings"
	"time"

	flightinspection "wucher/internal/domain/flight_inspection"
)

type FlightInspectionService struct {
	repo flightinspection.FlightInspectionRepository
}

func NewFlightInspectionService(repo flightinspection.FlightInspectionRepository) *FlightInspectionService {
	return &FlightInspectionService{repo: repo}
}

func (s *FlightInspectionService) CreateDraft(ctx context.Context, row *flightinspection.FlightInspection) error {
	row.Status = flightinspection.StatusDraft
	row.InspectionDate = dateOnlyUTCService(row.InspectionDate)
	return s.repo.Create(ctx, row)
}

func (s *FlightInspectionService) Update(ctx context.Context, row *flightinspection.FlightInspection) error {
	row.InspectionDate = dateOnlyUTCService(row.InspectionDate)
	return s.repo.Update(ctx, row)
}

func (s *FlightInspectionService) GetByID(ctx context.Context, id []byte) (*flightinspection.FlightInspection, error) {
	return s.repo.GetByID(ctx, id)
}

func (s *FlightInspectionService) List(ctx context.Context, sort string, limit, offset int) ([]flightinspection.FlightInspection, int64, error) {
	return s.repo.List(ctx, normalizeFlightInspectionSort(sort), limit, offset)
}

func normalizeFlightInspectionSort(sort string) string {
	if normalized := normalizeSortByRules(strings.TrimSpace(sort),
		sortExpr("inspection_date ASC, created_at ASC", "inspection_date DESC, created_at DESC", "inspection_date"),
		sortField("created_at"),
		sortField("updated_at"),
	); normalized != "" {
		return normalized
	}
	return "inspection_date DESC, created_at DESC"
}

func dateOnlyUTCService(t time.Time) time.Time {
	return time.Date(t.UTC().Year(), t.UTC().Month(), t.UTC().Day(), 0, 0, 0, 0, time.UTC)
}