package repositories

import (
	"SimplyCPQ2/internal/models"
	"database/sql"
)

type ValueRepository struct {
	db    *sql.DB
	cache map[int]models.Value
}

func NewValueRepository(db *sql.DB) *ValueRepository {
	return &ValueRepository{
		db:    db,
		cache: make(map[int]models.Value),
	}
}

func (r *ValueRepository) GetValueByID(id int) (models.Value, error) {
	if value, ok := r.cache[id]; ok {
		return value, nil
	}

	var value models.Value
	err := r.db.QueryRow("SELECT id, value, image_url FROM values WHERE id = ?", id).Scan(&value.Id, &value.Value, &value.ImageURL)
	if err != nil {
		return models.Value{}, err
	}
	r.cache[id] = value
	return value, nil
}

func (r *ValueRepository) GetValuesByPropertyId(pid int) ([]models.Value, error) {
	rows, err := r.db.Query("SELECT id, value, image_url, properties_id FROM values WHERE properties_id = ?", pid)
	if err != nil {
		return nil, err
	}
	defer rows.Close()

	var values []models.Value
	for rows.Next() {
		var value models.Value
		err := rows.Scan(&value.Id, &value.Value, &value.ImageURL, &value.PropertiesId)
		if err != nil {
			return nil, err
		}
		if cachedValue, ok := r.cache[value.Id]; ok {
			values = append(values, cachedValue)
		} else {
			r.cache[value.Id] = value
			values = append(values, value)
		}
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return values, nil
}

func (r *ValueRepository) CreateValue(value models.Value) (models.Value, error) {
	result, err := r.db.Exec("INSERT INTO values (value, image_url, properties_id) VALUES (?, ?, ?)", value.Value, value.ImageURL, value.PropertiesId)
	if err != nil {
		return models.Value{}, err
	}
	id, err := result.LastInsertId()
	if err != nil {
		return models.Value{}, err
	}
	value.Id = int(id)
	r.cache[value.Id] = value
	return value, nil
}