package db

import (
	"database/sql"
	"lostcavewireplanner/internal/models"
)

func (s *Store) RackGetAll() ([]models.Rack, error) {
	rows, err := s.DB.Query(`SELECT id, name, rack_type, depth, height_units, comment, created_at, updated_at FROM racks ORDER BY name`)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	var racks []models.Rack
	for rows.Next() {
		var r models.Rack
		if err := rows.Scan(&r.ID, &r.Name, &r.RackType, &r.Depth, &r.HeightUnits, &r.Comment, &r.CreatedAt, &r.UpdatedAt); err != nil {
			return nil, err
		}
		racks = append(racks, r)
	}
	return racks, rows.Err()
}

func (s *Store) RackGetByID(id int64) (*models.Rack, error) {
	r := &models.Rack{}
	err := s.DB.QueryRow(`SELECT id, name, rack_type, depth, height_units, comment, created_at, updated_at FROM racks WHERE id = ?`, id).
		Scan(&r.ID, &r.Name, &r.RackType, &r.Depth, &r.HeightUnits, &r.Comment, &r.CreatedAt, &r.UpdatedAt)
	if err == sql.ErrNoRows {
		return nil, nil
	}
	if err != nil {
		return nil, err
	}
	return r, nil
}

func (s *Store) RackCreate(r *models.Rack) (int64, error) {
	res, err := s.DB.Exec(`INSERT INTO racks (name, rack_type, depth, height_units, comment) VALUES (?, ?, ?, ?, ?)`,
		r.Name, r.RackType, r.Depth, r.HeightUnits, r.Comment)
	if err != nil {
		return 0, err
	}
	return res.LastInsertId()
}

func (s *Store) RackUpdate(r *models.Rack) error {
	_, err := s.DB.Exec(`UPDATE racks SET name=?, rack_type=?, depth=?, height_units=?, comment=?, updated_at=datetime('now') WHERE id=?`,
		r.Name, r.RackType, r.Depth, r.HeightUnits, r.Comment, r.ID)
	return err
}

func (s *Store) RackDelete(id int64) error {
	_, err := s.DB.Exec(`DELETE FROM racks WHERE id=?`, id)
	return err
}

func (s *Store) RackGetByName(name string) (*models.Rack, error) {
	r := &models.Rack{}
	err := s.DB.QueryRow(`SELECT id, name, rack_type, depth, height_units, comment, created_at, updated_at FROM racks WHERE name = ?`, name).
		Scan(&r.ID, &r.Name, &r.RackType, &r.Depth, &r.HeightUnits, &r.Comment, &r.CreatedAt, &r.UpdatedAt)
	if err == sql.ErrNoRows {
		return nil, nil
	}
	if err != nil {
		return nil, err
	}
	return r, nil
}