feat: create procedure for retrieving products

app/service/authService/auth.go

@@ -610,10 +610,10 @@ func (s *AuthService) GetLangISOCode(langID uint) (string, error) {
 	var lang string
 
 	if langID == 0 { // retrieve the default lang
-		err := db.DB.Table("b2b_language").Where("is_default = ?", 1).First(lang).Error
+		err := db.DB.Table("b2b_language").Where("is_default = ?", 1).Select("iso_code").Scan(&lang).Error
 		return lang, err
 	} else {
-		err := db.DB.Table("b2b_language").Where("id = ?", langID).Where("active = ?", 1).First(lang).Error
+		err := db.DB.Table("b2b_language").Where("id = ?", langID).Where("active = ?", 1).Select("iso_code").Scan(&lang).Error
 		return lang, err
 	}
 }

i18n/migrations/20260302163122_create_tables.sql

@@ -72,7 +72,8 @@ CREATE TABLE IF NOT EXISTS b2b_customers (
   password_reset_expires          DATETIME(6) NULL,
   last_password_reset_request     DATETIME(6) NULL,
   last_login_at                   DATETIME(6) NULL,
-  lang                            VARCHAR(10) NULL DEFAULT 'en',
+  lang_id                         BIGINT NULL DEFAULT 2,
+  country_id                      BIGINT NULL DEFAULT 2,
   created_at                      DATETIME(6) NULL,
   updated_at                      DATETIME(6) NULL,
   deleted_at                      DATETIME(6) NULL
@@ -114,9 +115,9 @@ CREATE INDEX IF NOT EXISTS idx_refresh_tokens_customer_id ON b2b_refresh_tokens
 
 -- insert sample admin user admin@ma-al.com/Maal12345678
 
-INSERT IGNORE INTO b2b_customers (id, email, password, first_name, last_name, role, provider, provider_id, avatar_url, is_active, email_verified, email_verification_token, email_verification_expires, password_reset_token, password_reset_expires, last_password_reset_request, last_login_at, lang, created_at, updated_at, deleted_at)
+INSERT IGNORE INTO b2b_customers (id, email, password, first_name, last_name, role, provider, provider_id, avatar_url, is_active, email_verified, email_verification_token, email_verification_expires, password_reset_token, password_reset_expires, last_password_reset_request, last_login_at, lang_id, country_id, created_at, updated_at, deleted_at)
 VALUES
-  (1, 'admin@ma-al.com', '$2a$10$Owy9DjrS0l3Fz4XoOvh5pulgmOMqdwXmb7hYE9BovnSuWS2plGr82', 'Super', 'Admin', 'admin', 'local', '', '', 1, 1, NULL, NULL, '', NULL, NULL, NULL, 'pl', '2026-03-02 16:55:10.252740', '2026-03-02 16:55:10.252740', NULL);
+  (1, 'admin@ma-al.com', '$2a$10$Owy9DjrS0l3Fz4XoOvh5pulgmOMqdwXmb7hYE9BovnSuWS2plGr82', 'Super', 'Admin', 'admin', 'local', '', '', 1, 1, NULL, NULL, '', NULL, NULL, NULL, 1, 1, '2026-03-02 16:55:10.252740', '2026-03-02 16:55:10.252740', NULL);
 ALTER TABLE b2b_customers AUTO_INCREMENT = 1;
 
 -- countries

i18n/migrations/20260319163200_procedures.sql

@@ -0,0 +1,224 @@
+-- +goose Up
+DELIMITER //
+
+DROP PROCEDURE IF EXISTS get_full_product //
+
+CREATE PROCEDURE get_full_product(
+    IN p_id_product INT UNSIGNED,
+    IN p_id_shop INT UNSIGNED,
+    IN p_id_lang INT UNSIGNED,
+    IN p_id_customer INT UNSIGNED,
+    IN p_id_group INT UNSIGNED,
+    IN p_id_currency INT UNSIGNED,
+    IN p_id_country INT UNSIGNED,
+    IN p_quantity INT UNSIGNED
+)
+BEGIN
+
+    DECLARE v_tax_rate DECIMAL(10,4) DEFAULT 0;
+
+   SELECT COALESCE(t.rate, 0.0000) INTO v_tax_rate
+FROM ps_tax_rule tr
+INNER JOIN ps_tax t 
+    ON t.id_tax = tr.id_tax
+WHERE tr.id_tax_rules_group = (
+    SELECT ps.id_tax_rules_group 
+    FROM ps_product_shop ps  
+    WHERE ps.id_product = p_id_product
+      AND ps.id_shop = p_id_shop   
+    LIMIT 1
+)
+  AND tr.id_country = p_id_country
+ORDER BY 
+    tr.id_state DESC,          
+    tr.zipcode_from != '' DESC, 
+    tr.id_tax_rule DESC        
+LIMIT 1;
+
+    /* FINAL JSON */
+    SELECT JSON_OBJECT(
+
+        /* ================= PRODUCT ================= */
+        'id_product', p.id_product,
+        'reference', p.reference,
+        'name', pl.name,
+        'description', pl.description,
+        'short_description', pl.description_short,
+
+        /* ================= PRICE ================= */
+        'price', JSON_OBJECT(
+            'base', COALESCE(ps.price, p.price),
+
+            'final_tax_excl',
+            (
+                COALESCE(ps.price, p.price)
+                - IFNULL(
+                    CASE 
+                        WHEN sp.reduction_type = 'amount' THEN sp.reduction
+                        WHEN sp.reduction_type = 'percentage' THEN COALESCE(ps.price, p.price) * sp.reduction
+                        ELSE 0
+                    END, 0
+                )
+            ),
+
+            'final_tax_incl',
+            (
+                (
+                    COALESCE(ps.price, p.price)
+                    - IFNULL(
+                        CASE 
+                            WHEN sp.reduction_type = 'amount' THEN sp.reduction
+                            WHEN sp.reduction_type = 'percentage' THEN COALESCE(ps.price, p.price) * sp.reduction
+                            ELSE 0
+                        END, 0
+                    )
+                ) * (1 + v_tax_rate / 100)
+            )
+        ),
+
+        /* ================= META ================= */
+        'active', COALESCE(ps.active, p.active),
+        'visibility', COALESCE(ps.visibility, p.visibility),
+        'manufacturer', m.name,
+        'category', cl.name,
+
+        /* ================= IMAGE ================= */
+        'cover_image', JSON_OBJECT(
+            'id', i.id_image,
+            'legend', il.legend
+        ),
+
+        /* ================= FEATURES ================= */
+        'features', (
+            SELECT JSON_ARRAYAGG(
+                JSON_OBJECT(
+                    'name', fl.name,
+                    'value', fvl.value
+                )
+            )
+            FROM ps_feature_product fp
+            JOIN ps_feature_lang fl 
+                ON fl.id_feature = fp.id_feature AND fl.id_lang = p_id_lang
+            JOIN ps_feature_value_lang fvl 
+                ON fvl.id_feature_value = fp.id_feature_value AND fvl.id_lang = p_id_lang
+            WHERE fp.id_product = p.id_product
+        ),
+
+        /* ================= COMBINATIONS ================= */
+        'combinations', (
+            SELECT JSON_ARRAYAGG(
+                JSON_OBJECT(
+                    'id_product_attribute', pa.id_product_attribute,
+                    'reference', pa.reference,
+
+                    'price', JSON_OBJECT(
+                        'impact', COALESCE(pas.price, pa.price),
+
+                        'final_tax_excl',
+                        (
+                            COALESCE(ps.price, p.price)
+                            + COALESCE(pas.price, pa.price)
+                        ),
+
+                        'final_tax_incl',
+                        (
+                            (
+                                COALESCE(ps.price, p.price)
+                                + COALESCE(pas.price, pa.price)
+                            ) * (1 + v_tax_rate / 100)
+                        )
+                    ),
+
+                    'stock', IFNULL(sa.quantity, 0),
+
+                    'default_on', pas.default_on,
+
+                    /* ATTRIBUTES JSON */
+                    'attributes', (
+                        SELECT JSON_ARRAYAGG(
+                            JSON_OBJECT(
+                                'group', agl.name,
+                                'attribute', al.name
+                            )
+                        )
+                        FROM ps_product_attribute_combination pac
+                        JOIN ps_attribute a ON a.id_attribute = pac.id_attribute
+                        JOIN ps_attribute_lang al 
+                            ON al.id_attribute = a.id_attribute AND al.id_lang = p_id_lang
+                        JOIN ps_attribute_group_lang agl 
+                            ON agl.id_attribute_group = a.id_attribute_group AND agl.id_lang = p_id_lang
+                        WHERE pac.id_product_attribute = pa.id_product_attribute
+                    ),
+
+                    /* IMAGES */
+                    'images', (
+                        SELECT JSON_ARRAYAGG(img.id_image)
+                        FROM ps_product_attribute_image pai
+                        JOIN ps_image img ON img.id_image = pai.id_image
+                        WHERE pai.id_product_attribute = pa.id_product_attribute
+                    )
+
+                )
+            )
+            FROM ps_product_attribute pa
+            JOIN ps_product_attribute_shop pas 
+                ON pas.id_product_attribute = pa.id_product_attribute 
+                AND pas.id_shop = p_id_shop
+            LEFT JOIN ps_stock_available sa 
+                ON sa.id_product = pa.id_product 
+                AND sa.id_product_attribute = pa.id_product_attribute 
+                AND sa.id_shop = p_id_shop
+            WHERE pa.id_product = p.id_product
+        )
+
+    ) AS product_json
+
+    FROM ps_product p
+
+    LEFT JOIN ps_product_shop ps 
+        ON ps.id_product = p.id_product AND ps.id_shop = p_id_shop
+
+    LEFT JOIN ps_product_lang pl 
+        ON pl.id_product = p.id_product 
+        AND pl.id_lang = p_id_lang 
+        AND pl.id_shop = p_id_shop
+
+    LEFT JOIN ps_category_lang cl 
+        ON cl.id_category = COALESCE(ps.id_category_default, p.id_category_default)
+        AND cl.id_lang = p_id_lang 
+        AND cl.id_shop = p_id_shop
+
+    LEFT JOIN ps_manufacturer m 
+        ON m.id_manufacturer = p.id_manufacturer
+
+    LEFT JOIN ps_image i 
+        ON i.id_product = p.id_product AND i.cover = 1
+
+    LEFT JOIN ps_image_lang il 
+        ON il.id_image = i.id_image AND il.id_lang = p_id_lang
+
+    /* SPECIFIC PRICE */
+    LEFT JOIN (
+        SELECT sp1.*
+        FROM ps_specific_price sp1
+        WHERE sp1.id_product = p_id_product
+          AND (sp1.id_customer = 0 OR sp1.id_customer = p_id_customer)
+          AND (sp1.id_group = 0 OR sp1.id_group = p_id_group)
+          AND (sp1.id_currency = 0 OR sp1.id_currency = p_id_currency)
+          AND sp1.from_quantity <= p_quantity
+        ORDER BY 
+            sp1.id_customer DESC,
+            sp1.id_group DESC,
+            sp1.from_quantity DESC,
+            sp1.id_specific_price DESC
+        LIMIT 1
+    ) sp ON sp.id_product = p.id_product
+
+    WHERE p.id_product = p_id_product
+
+    LIMIT 1;
+
+END //
+
+DELIMITER ;
+-- +goose Down