CREATE TABLE IF NOT EXISTS `category` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primary key',
	`title` varchar(255) NOT NULL COMMENT 'Category title',
	`parent` bigint(20) unsigned DEFAULT NULL COMMENT 'Parent category',
	PRIMARY KEY (`id`),
	INDEX `parent` (`parent`)
) ENGINE=InnoDBDEFAULT CHARSET=utf8mb4 COMMENT='Categories' ;

CREATE TABLE IF NOT EXISTS `contacts` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primary key',
	`own_contact` tinyint(1) NOT NULL DEFAULT '0' COMMENT 'Whether own contact',
	`gender` varchar(10) NOT NULL DEFAULT 'UNKNOWN' COMMENT 'Gender',
	`first_name` varchar(100) NOT NULL COMMENT 'First name',
	`family_name` varchar(100) NOT NULL COMMENT 'Family name',
	`company_name` varchar(255) DEFAULT NULL COMMENT 'Company name',
	`street` varchar(255) DEFAULT NULL COMMENT 'Street name',
	`house_number` smallint(5) unsigned DEFAULT NULL COMMENT 'House number',
	`city` varchar(100) DEFAULT NULL COMMENT 'City name',
	`zip_code` smallint(5) unsigned DEFAULT NULL COMMENT 'ZIP code',
	`country_code` char(2) DEFAULT NULL COMMENT 'Country code',
	`phone_number` varchar(100) DEFAULT NULL COMMENT 'Phone number',
	`cellphone_number` varchar(100) DEFAULT NULL COMMENT 'Cellphone number',
	`fax_number` varchar(100) DEFAULT NULL COMMENT 'Fax number',
	`email_address` varchar(100) DEFAULT NULL COMMENT 'Email addres',
	`birthday` date DEFAULT NULL COMMENT 'Birth day',
	`comment` tinytext NULL DEFAULT NULL COMMENT 'Comment',
	`created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Entry created',
	`updated` timestamp NULL DEFAULT NULL COMMENT 'Entry updated',
	PRIMARY KEY (`id`)
) ENGINE=InnoDBDEFAULT CHARSET=utf8mb4 COMMENT='Contacts data' ;

CREATE TABLE IF NOT EXISTS `customer` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primay key',
	`customer_contact_id` bigint(20) unsigned NOT NULL COMMENT 'Table reference on "contact"',
	`customer_number` varchar(20) COLLATE 'utf8mb4_general_ci' NOT NULL COMMENT 'Customer number',
	`customer_password_hash` varchar(255) COLLATE 'utf8mb4_general_ci' NULL DEFAULT NULL COMMENT 'Password hash',
	`customer_confirm_key` varchar(50) COLLATE 'utf8mb4_general_ci' NULL DEFAULT NULL COMMENT 'Email confirmation key',
	`customer_status` enum('UNCONFIRMED','CONFIRMED','LOCKED') COLLATE 'utf8mb4_general_ci' NOT NULL DEFAULT 'UNCONFIRMED' COMMENT 'Account status',
	`customer_created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Account creation',
	`customer_locked` datetime NULL DEFAULT NULL COMMENT 'Last locked timestamp',
	PRIMARY KEY (`id`),
	UNIQUE (`customer_confirm_key`),
	UNIQUE (`customer_number`),
	INDEX (`customer_contact_id`)
) COMMENT='Customer data' ENGINE='InnoDB' COLLATE 'utf8mb4_general_ci';

CREATE TABLE IF NOT EXISTS `products` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primary key',
	`category` bigint(20) unsigned DEFAULT NULL COMMENT 'Category id',
	`title` varchar(255) NOT NULL COMMENT 'Title of product',
	`price` decimal(20,2) unsigned NOT NULL COMMENT 'Product price',
	`available` tinyint(1) NOT NULL DEFAULT '0' COMMENT 'Whether product is available',
	PRIMARY KEY (`id`),
	INDEX `category` (`category`)
) ENGINE=InnoDBDEFAULT CHARSET=utf8mb4 COMMENT='Products' ;

CREATE TABLE IF NOT EXISTS `orders` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primary key',
	`customer_id` bigint(20) unsigned NOT NULL COMMENT 'Table reference customer',
	`access_key` varchar(50) CHARACTER SET utf8mb4 DEFAULT NULL COMMENT 'Access key to receipt',
	`created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Order created',
	PRIMARY KEY (`id`),
	UNIQUE KEY `access_key` (`access_key`),
	INDEX `customer_id` (`customer_id`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 COMMENT='Customer orders';

CREATE TABLE IF NOT EXISTS `ordered_items` (
	`id` bigint(20) unsigned NOT NULL COMMENT 'Primary key',
	`order_id` bigint(20) unsigned DEFAULT NULL COMMENT 'Table reference orders',
	`order_status` enum('UNCONFIRMED','CONFIRMED','DELIVERED','CANCELED') NOT NULL DEFAULT 'UNCONFIRMED' COMMENT 'Order status',
	`product_id` bigint(20) unsigned NOT NULL COMMENT 'Table reference products',
	`amount` bigint(20) unsigned NOT NULL COMMENT 'Ordered amount',
	`added` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP COMMENT 'Record inserted',
	PRIMARY KEY (`id`),
	INDEX `order_id` (`order_id`),
	INDEX `product_id` (`product_id`),
	INDEX `customer_product` (`customer_id`,`product_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COMMENT='Customer orders';

ALTER TABLE `category`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `contacts`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `customer`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `products`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `orders`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `ordered_items`
MODIFY `id` bigint(20) unsigned NOT NULL AUTO_INCREMENT COMMENT 'Primary key';

ALTER TABLE `category`
ADD FOREIGN KEY (`parent`) REFERENCES `category` (`id`) ON DELETE SET NULL;

ALTER TABLE `customer`
ADD FOREIGN KEY (`customer_contact_id`) REFERENCES `contacts` (`id`) ON DELETE CASCADE;

ALTER TABLE `products`
ADD FOREIGN KEY (`category`) REFERENCES `category` (`id`) ON DELETE SET NULL;

ALTER TABLE `ordered_items`
ADD CONSTRAINT `orders_ibfk_2` FOREIGN KEY (`product_id`) REFERENCES `products` (`id`) ON DELETE CASCADE;
