-- =============================================================
-- schema_food.sql — قاعدة بيانات وحدة طلبات الطعام (siro_food)
-- عزل كامل عن main/ride/transit — ممنوع أي JOIN خارجي
-- الربط بالنظام الرئيسي عبر passenger_id / courier_id (main driver id) فقط
-- =============================================================

SET FOREIGN_KEY_CHECKS = 0;
SET SQL_MODE = "NO_AUTO_VALUE_ON_ZERO";
SET time_zone = "+00:00";

-- -----------------------------------------------------------------
-- 1. food_merchants — المطاعم/المتاجر
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_merchants` (
  `id`                INT UNSIGNED   NOT NULL AUTO_INCREMENT,
  `name_ar`           VARCHAR(150)   NOT NULL,
  `name_en`           VARCHAR(150)   DEFAULT NULL,
  `logo_url`          VARCHAR(500)   DEFAULT NULL,
  `cover_url`         VARCHAR(500)   DEFAULT NULL,
  `description_ar`    VARCHAR(500)   DEFAULT NULL,
  `city`              VARCHAR(80)    NOT NULL,
  `address`           VARCHAR(300)   DEFAULT NULL,
  `latitude`          DECIMAL(10,7)  NOT NULL,
  `longitude`         DECIMAL(10,7)  NOT NULL,
  `category`          VARCHAR(60)    DEFAULT NULL COMMENT 'مطبخ عربي، بيتزا، حلويات...',
  `commission_percent` DECIMAL(5,2)  NOT NULL DEFAULT 15.00,
  `min_order_amount`  BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT 'أصغر وحدة نقدية',
  `avg_prep_minutes`  SMALLINT UNSIGNED NOT NULL DEFAULT 20,
  `rating_avg`        DECIMAL(3,2)   NOT NULL DEFAULT 0.00,
  `rating_count`      INT UNSIGNED   NOT NULL DEFAULT 0,
  `status`            ENUM('pending_approval','active','paused','suspended','rejected') NOT NULL DEFAULT 'pending_approval',
  `is_open_override`  TINYINT(1)     DEFAULT NULL COMMENT 'NULL=يتبع working_hours، 0/1=إغلاق/فتح يدوي فوري',
  `working_hours`     JSON           DEFAULT NULL COMMENT '{"sun":[["09:00","23:00"]], ...}',
  `approved_by`       INT UNSIGNED   DEFAULT NULL COMMENT 'admin id من النظام الرئيسي',
  `approved_at`       TIMESTAMP      DEFAULT NULL,
  `created_at`        TIMESTAMP      NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `updated_at`        TIMESTAMP      NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_city_status` (`city`, `status`),
  KEY `idx_location` (`latitude`, `longitude`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 2. food_merchant_users — حسابات دخول أصحاب المطاعم (دور merchant، هوية منفصلة عن الراكب)
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_merchant_users` (
  `id`            INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `merchant_id`   INT UNSIGNED  NOT NULL,
  `name`          VARCHAR(120)  NOT NULL,
  `phone`         VARCHAR(25)   NOT NULL COMMENT 'مشفّر بنفس EncryptionHelper',
  `role`          ENUM('owner','staff') NOT NULL DEFAULT 'owner',
  `password_hash` VARCHAR(255)  NOT NULL,
  `is_active`     TINYINT(1)    NOT NULL DEFAULT 1,
  `created_at`    TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uq_phone` (`phone`),
  KEY `idx_merchant` (`merchant_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 3. food_menu_categories — أقسام قائمة المطعم
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_menu_categories` (
  `id`          INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `merchant_id` INT UNSIGNED  NOT NULL,
  `name_ar`     VARCHAR(100)  NOT NULL,
  `name_en`     VARCHAR(100)  DEFAULT NULL,
  `sort_order`  SMALLINT      NOT NULL DEFAULT 0,
  `is_active`   TINYINT(1)    NOT NULL DEFAULT 1,
  `created_at`  TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_merchant_sort` (`merchant_id`, `sort_order`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 4. food_menu_items — أصناف القائمة
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_menu_items` (
  `id`            INT UNSIGNED   NOT NULL AUTO_INCREMENT,
  `merchant_id`   INT UNSIGNED   NOT NULL,
  `category_id`   INT UNSIGNED   NOT NULL,
  `name_ar`       VARCHAR(150)   NOT NULL,
  `name_en`       VARCHAR(150)   DEFAULT NULL,
  `description_ar` VARCHAR(500)  DEFAULT NULL,
  `image_url`     VARCHAR(500)   DEFAULT NULL,
  `price`         BIGINT UNSIGNED NOT NULL COMMENT 'أصغر وحدة نقدية',
  `is_available`  TINYINT(1)     NOT NULL DEFAULT 1,
  `prep_minutes`  SMALLINT UNSIGNED DEFAULT NULL COMMENT 'NULL = يستخدم avg_prep_minutes للمطعم',
  `sort_order`    SMALLINT       NOT NULL DEFAULT 0,
  `created_at`    TIMESTAMP      NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `updated_at`    TIMESTAMP      NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_merchant_available` (`merchant_id`, `is_available`),
  KEY `idx_category` (`category_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 5. food_item_options — مجموعات خيارات الصنف (حجم، إضافات...)
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_item_options` (
  `id`           INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `item_id`      INT UNSIGNED  NOT NULL,
  `group_name_ar` VARCHAR(100) NOT NULL COMMENT 'مثال: الحجم، الإضافات',
  `is_required`  TINYINT(1)    NOT NULL DEFAULT 0,
  `max_select`   TINYINT UNSIGNED NOT NULL DEFAULT 1 COMMENT '1=اختيار واحد، أكثر=متعدد',
  `choices`      JSON          NOT NULL COMMENT '[{"id":"lg","label_ar":"كبير","price":500}]',
  `sort_order`   SMALLINT      NOT NULL DEFAULT 0,
  `created_at`   TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_item` (`item_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 6. food_orders — الطلب
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_orders` (
  `id`                INT UNSIGNED   NOT NULL AUTO_INCREMENT,
  `client_order_uuid` CHAR(36)       NOT NULL COMMENT 'idempotency — يمنع الضغط المزدوج من إنشاء طلبين',
  `passenger_id`      VARCHAR(100)   NOT NULL COMMENT 'مرجع منطقي فقط — لا FK خارجي',
  `merchant_id`        INT UNSIGNED  NOT NULL,
  `courier_id`         VARCHAR(100)  DEFAULT NULL COMMENT 'main driver id بعد الإسناد',
  `status`             ENUM(
                          'pending','merchant_accepted','preparing','ready',
                          'courier_assigned','picked_up','delivered',
                          'rejected','cancelled_by_customer','cancelled_by_merchant','cancelled_system'
                        ) NOT NULL DEFAULT 'pending',
  `items_total`        BIGINT UNSIGNED NOT NULL COMMENT 'مجموع أصناف الطلب — أصغر وحدة نقدية',
  `delivery_fee`       BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `service_fee`        BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `discount`           BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `grand_total`        BIGINT UNSIGNED NOT NULL COMMENT 'items_total+delivery_fee+service_fee-discount',
  `commission_amount`  BIGINT UNSIGNED NOT NULL DEFAULT 0 COMMENT 'نصيب المنصة من items_total',
  `payment_method`     ENUM('wallet','cash') NOT NULL DEFAULT 'wallet',
  `payment_hold_ref`   VARCHAR(100)  DEFAULT NULL COMMENT 'مرجع حجز المحفظة في payment_server/v2',
  `delivery_address`   VARCHAR(300)  NOT NULL,
  `delivery_lat`       DECIMAL(10,7) NOT NULL,
  `delivery_lng`       DECIMAL(10,7) NOT NULL,
  `customer_note`      VARCHAR(300)  DEFAULT NULL,
  `promo_code`         VARCHAR(40)   DEFAULT NULL,
  `rating`              TINYINT UNSIGNED DEFAULT NULL,
  `rating_comment`      VARCHAR(300) DEFAULT NULL,
  `merchant_accepted_at` TIMESTAMP   DEFAULT NULL,
  `ready_at`            TIMESTAMP    DEFAULT NULL,
  `courier_assigned_at` TIMESTAMP    DEFAULT NULL,
  `picked_up_at`        TIMESTAMP    DEFAULT NULL,
  `delivered_at`        TIMESTAMP    DEFAULT NULL,
  `cancelled_at`         TIMESTAMP   DEFAULT NULL,
  `cancel_reason`        VARCHAR(300) DEFAULT NULL,
  `created_at`          TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `updated_at`          TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uq_client_uuid` (`client_order_uuid`),
  KEY `idx_passenger_created` (`passenger_id`, `created_at`),
  KEY `idx_merchant_status` (`merchant_id`, `status`),
  KEY `idx_courier_status` (`courier_id`, `status`),
  KEY `idx_status` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 7. food_order_items — أصناف الطلب بسعر مجمّد وقت الطلب
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_order_items` (
  `id`               INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `order_id`         INT UNSIGNED  NOT NULL,
  `item_id`          INT UNSIGNED  NOT NULL COMMENT 'مرجع فقط — لا JOIN للسعر',
  `name_ar_snapshot` VARCHAR(150)  NOT NULL,
  `unit_price`       BIGINT UNSIGNED NOT NULL COMMENT 'سعر الوحدة وقت الطلب — مجمّد',
  `quantity`         SMALLINT UNSIGNED NOT NULL DEFAULT 1,
  `option_price_json` JSON         DEFAULT NULL COMMENT 'الخيارات المختارة وأسعارها وقت الطلب',
  `line_total`       BIGINT UNSIGNED NOT NULL COMMENT '(unit_price+مجموع الخيارات)×quantity',
  `created_at`       TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_order` (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 8. food_order_status_log — كل انتقال حالة — مصدر الحقيقة للنزاعات
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_order_status_log` (
  `id`          INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `order_id`    INT UNSIGNED  NOT NULL,
  `from_status` VARCHAR(30)   DEFAULT NULL,
  `to_status`   VARCHAR(30)   NOT NULL,
  `actor_type`  ENUM('customer','merchant','courier','admin','system') NOT NULL,
  `actor_id`    VARCHAR(100)  DEFAULT NULL,
  `note`        VARCHAR(300)  DEFAULT NULL,
  `created_at`  TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_order` (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 9. food_order_payments — مرجع معاملة المحفظة/الدفع + التسوية
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_order_payments` (
  `id`             INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `order_id`       INT UNSIGNED  NOT NULL,
  `type`           ENUM('hold','capture','release','cash_settlement','courier_payout') NOT NULL,
  `amount`         BIGINT UNSIGNED NOT NULL,
  `wallet_ref`     VARCHAR(100)  DEFAULT NULL COMMENT 'مرجع من payment_server/v2',
  `status`         ENUM('pending','success','failed') NOT NULL DEFAULT 'pending',
  `created_at`     TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_order` (`order_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 10. food_courier_assignments — محاولات إسناد الطلب لسائق
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_courier_assignments` (
  `id`          INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `order_id`    INT UNSIGNED  NOT NULL,
  `courier_id`  VARCHAR(100)  NOT NULL COMMENT 'main driver id',
  `status`      ENUM('offered','accepted','rejected','timed_out') NOT NULL DEFAULT 'offered',
  `offered_at`  TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  `responded_at` TIMESTAMP    DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `idx_order` (`order_id`),
  KEY `idx_courier` (`courier_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 11. food_merchant_payouts — مستحقات المطاعم ودورات التسوية
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_merchant_payouts` (
  `id`             INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `merchant_id`    INT UNSIGNED  NOT NULL,
  `period_start`   DATE          NOT NULL,
  `period_end`     DATE          NOT NULL,
  `orders_count`   INT UNSIGNED  NOT NULL DEFAULT 0,
  `gross_amount`   BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `commission_amount` BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `net_payout`     BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `status`         ENUM('pending','paid') NOT NULL DEFAULT 'pending',
  `paid_at`        TIMESTAMP     DEFAULT NULL,
  `created_at`     TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_merchant_period` (`merchant_id`, `period_start`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 12. food_promo_codes — أكواد خصم خاصة بالطعام (منفصلة عن أكواد الرحلات)
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_promo_codes` (
  `id`              INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `code`            VARCHAR(40)   NOT NULL,
  `discount_type`   ENUM('percent','fixed') NOT NULL DEFAULT 'fixed',
  `discount_value`  INT UNSIGNED  NOT NULL,
  `max_discount`    BIGINT UNSIGNED DEFAULT NULL,
  `min_order_amount` BIGINT UNSIGNED NOT NULL DEFAULT 0,
  `usage_limit`     INT UNSIGNED  DEFAULT NULL,
  `usage_count`     INT UNSIGNED  NOT NULL DEFAULT 0,
  `valid_from`      TIMESTAMP     DEFAULT NULL,
  `valid_until`     TIMESTAMP     DEFAULT NULL,
  `is_active`       TINYINT(1)    NOT NULL DEFAULT 1,
  `created_at`       TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uq_code` (`code`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- -----------------------------------------------------------------
-- 13. food_merchant_sessions — جلسات دخول لوحة المطعم (هاتف+كلمة مرور،
--     session token مستقل عن JWT — نفس نمط transit_sessions، لأن لوحة
--     المطعم ويب متجاوب لا يملك device fingerprint كتطبيق الجوال)
-- -----------------------------------------------------------------
CREATE TABLE IF NOT EXISTS `food_merchant_sessions` (
  `id`               INT UNSIGNED  NOT NULL AUTO_INCREMENT,
  `merchant_user_id` INT UNSIGNED  NOT NULL,
  `merchant_id`      INT UNSIGNED  NOT NULL,
  `token_hash`       VARCHAR(64)   NOT NULL COMMENT 'sha256 للـ session token',
  `ip`               VARCHAR(45)   DEFAULT NULL,
  `user_agent`       VARCHAR(300)  DEFAULT NULL,
  `expires_at`       TIMESTAMP     NOT NULL,
  `created_at`       TIMESTAMP     NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `uq_token` (`token_hash`),
  KEY `idx_merchant_user` (`merchant_user_id`),
  KEY `idx_expires` (`expires_at`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

SET FOREIGN_KEY_CHECKS = 1;

-- -----------------------------------------------------------------
-- ملاحظات Redis (مفاتيح تُكتب من PHP — ليست في SQL):
-- food:order:{id}:lock             → SET NX EX 20 عند قبول سائق (يمنع سباق القبول)
-- geo:couriers:available           → مجموعة جغرافية للسائقين can_deliver=1 المتفرغين
-- food:merchant:{id}:cache         → كاش بيانات مطعم للقراءة السريعة (اختياري لاحقاً)
-- Redis channels للسوكيت: food:order:{id} / food:merchant:{id} / food:courier:{id}
-- -----------------------------------------------------------------