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start rmser
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243
internal/infrastructure/repository/recommendations/postgres.go
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243
internal/infrastructure/repository/recommendations/postgres.go
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@@ -0,0 +1,243 @@
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package recommendations
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import (
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"fmt"
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"strconv"
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"time"
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"rmser/internal/domain/operations"
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"rmser/internal/domain/recommendations"
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"gorm.io/gorm"
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)
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type pgRepository struct {
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db *gorm.DB
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}
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func NewRepository(db *gorm.DB) recommendations.Repository {
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return &pgRepository{db: db}
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}
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// --- Методы Хранения ---
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func (r *pgRepository) SaveAll(items []recommendations.Recommendation) error {
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return r.db.Transaction(func(tx *gorm.DB) error {
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if err := tx.Session(&gorm.Session{AllowGlobalUpdate: true}).Unscoped().Delete(&recommendations.Recommendation{}).Error; err != nil {
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return err
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}
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if len(items) > 0 {
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if err := tx.CreateInBatches(items, 100).Error; err != nil {
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return err
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}
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}
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return nil
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})
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}
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func (r *pgRepository) GetAll() ([]recommendations.Recommendation, error) {
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var items []recommendations.Recommendation
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err := r.db.Find(&items).Error
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return items, err
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}
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// --- Методы Аналитики ---
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// 1. Товары (GOODS/PREPARED), не используемые в техкартах
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func (r *pgRepository) FindUnusedGoods() ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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query := `
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SELECT
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p.id as product_id,
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p.name as product_name,
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'Товар не используется ни в одной техкарте' as reason,
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? as type
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FROM products p
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WHERE p.type IN ('GOODS', 'PREPARED')
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AND p.is_deleted = false -- Проверка на удаление
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AND p.id NOT IN (
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SELECT DISTINCT product_id FROM recipe_items
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)
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AND p.id NOT IN (
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SELECT DISTINCT product_id FROM recipes
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)
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ORDER BY p.name ASC
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`
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if err := r.db.Raw(query, recommendations.TypeUnused).Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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// 2. Закупается, но нет в техкартах
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func (r *pgRepository) FindPurchasedButUnused(days int) ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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dateFrom := time.Now().AddDate(0, 0, -days)
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query := `
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SELECT DISTINCT
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p.id as product_id,
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p.name as product_name,
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'Товар активно закупается, но не включен ни в одну техкарту' as reason,
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? as type
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FROM store_operations so
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JOIN products p ON so.product_id = p.id
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WHERE
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so.op_type = ?
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AND so.period_from >= ?
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AND p.is_deleted = false -- Проверка на удаление
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AND p.id NOT IN (
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SELECT DISTINCT product_id FROM recipe_items
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)
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ORDER BY p.name ASC
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`
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if err := r.db.Raw(query, recommendations.TypePurchasedButUnused, operations.OpTypePurchase, dateFrom).Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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// 3. Ингредиенты в актуальных техкартах без закупок
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func (r *pgRepository) FindNoIncomingIngredients(days int) ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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dateFrom := time.Now().AddDate(0, 0, -days)
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query := `
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SELECT
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p.id as product_id,
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p.name as product_name,
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'Нет закупок (' || ? || ' дн). Входит в: ' || STRING_AGG(DISTINCT parent.name, ', ') as reason,
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? as type
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FROM recipe_items ri
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JOIN recipes r ON ri.recipe_id = r.id
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JOIN products p ON ri.product_id = p.id
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JOIN products parent ON r.product_id = parent.id
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WHERE
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(r.date_to IS NULL OR r.date_to >= CURRENT_DATE)
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AND p.type = 'GOODS'
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AND p.is_deleted = false -- Сам ингредиент не удален
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AND parent.is_deleted = false -- Блюдо, в которое он входит, не удалено
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AND p.id NOT IN (
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SELECT product_id
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FROM store_operations
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WHERE op_type = ?
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AND period_from >= ?
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)
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GROUP BY p.id, p.name
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ORDER BY p.name ASC
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`
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if err := r.db.Raw(query, strconv.Itoa(days), recommendations.TypeNoIncoming, operations.OpTypePurchase, dateFrom).Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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// 4. Товары, которые закупаем, но не расходуем ("Висяки")
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func (r *pgRepository) FindStaleGoods(days int) ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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dateFrom := time.Now().AddDate(0, 0, -days)
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query := `
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SELECT DISTINCT
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p.id as product_id,
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p.name as product_name,
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? as reason,
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? as type
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FROM store_operations so
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JOIN products p ON so.product_id = p.id
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WHERE
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so.op_type = ?
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AND so.period_from >= ?
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AND p.is_deleted = false -- Проверка на удаление
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AND p.id NOT IN (
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SELECT product_id
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FROM store_operations
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WHERE op_type = ?
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AND period_from >= ?
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)
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ORDER BY p.name ASC
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`
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reason := fmt.Sprintf("Были закупки, но нет расхода за %d дн.", days)
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if err := r.db.Raw(query, reason, recommendations.TypeStale, operations.OpTypePurchase, dateFrom, operations.OpTypeUsage, dateFrom).
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Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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// 5. Блюдо используется в техкарте другого блюда
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func (r *pgRepository) FindDishesInRecipes() ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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query := `
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SELECT DISTINCT
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child.id as product_id,
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child.name as product_name,
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'Является Блюдом (DISH), но указан ингредиентом в: ' || parent.name as reason,
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? as type
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FROM recipe_items ri
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JOIN products child ON ri.product_id = child.id
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JOIN recipes r ON ri.recipe_id = r.id
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JOIN products parent ON r.product_id = parent.id
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WHERE
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child.type = 'DISH'
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AND child.is_deleted = false -- Вложенное блюдо не удалено
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AND parent.is_deleted = false -- Родительское блюдо не удалено
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AND (r.date_to IS NULL OR r.date_to >= CURRENT_DATE)
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ORDER BY child.name ASC
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`
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if err := r.db.Raw(query, recommendations.TypeDishInRecipe).Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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// 6. Есть расход (Usage), но нет прихода (Purchase)
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func (r *pgRepository) FindUsageWithoutPurchase(days int) ([]recommendations.Recommendation, error) {
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var results []recommendations.Recommendation
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dateFrom := time.Now().AddDate(0, 0, -days)
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query := `
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SELECT DISTINCT
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p.id as product_id,
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p.name as product_name,
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? as reason,
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? as type
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FROM store_operations so
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JOIN products p ON so.product_id = p.id
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WHERE
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so.op_type = ? -- Есть расход (продажа/списание)
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AND so.period_from >= ?
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AND p.type = 'GOODS' -- Только для товаров
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AND p.is_deleted = false -- Товар жив
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AND p.id NOT IN ( -- Но не было закупок
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SELECT product_id
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FROM store_operations
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WHERE op_type = ?
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AND period_from >= ?
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)
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ORDER BY p.name ASC
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`
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reason := fmt.Sprintf("Товар расходуется (продажи/списания), но не закупался последние %d дн.", days)
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// Аргументы: reason, type, OpUsage, date, OpPurchase, date
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if err := r.db.Raw(query,
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reason,
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recommendations.TypeUsageNoIncoming,
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operations.OpTypeUsage,
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dateFrom,
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operations.OpTypePurchase,
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dateFrom,
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).Scan(&results).Error; err != nil {
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return nil, err
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}
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return results, nil
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}
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