inventory/inventory-server/db/schema.sql

-- Enable strict error reporting
SET sql_mode = 'STRICT_ALL_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_ZERO_DATE,NO_ZERO_IN_DATE,NO_ENGINE_SUBSTITUTION';
SET FOREIGN_KEY_CHECKS = 0;

-- Create tables
CREATE TABLE products (
    pid BIGINT NOT NULL,
    title VARCHAR(255) NOT NULL,
    description TEXT,
    SKU VARCHAR(50) NOT NULL,
    created_at TIMESTAMP NULL,
    first_received TIMESTAMP NULL,
    stock_quantity INT DEFAULT 0,
    preorder_count INT DEFAULT 0,
    notions_inv_count INT DEFAULT 0,
    price DECIMAL(10, 3) NOT NULL,
    regular_price DECIMAL(10, 3) NOT NULL,
    cost_price DECIMAL(10, 3),
    landing_cost_price DECIMAL(10, 3),
    barcode VARCHAR(50),
    harmonized_tariff_code VARCHAR(20),
    updated_at TIMESTAMP,
    visible BOOLEAN DEFAULT true,
    managing_stock BOOLEAN DEFAULT true,
    replenishable BOOLEAN DEFAULT true,
    vendor VARCHAR(100),
    vendor_reference VARCHAR(100),
    notions_reference VARCHAR(100),
    permalink VARCHAR(255),
    categories TEXT,
    image VARCHAR(255),
    image_175 VARCHAR(255),
    image_full VARCHAR(255),
    brand VARCHAR(100),
    line VARCHAR(100),
    subline VARCHAR(100),
    artist VARCHAR(100),
    options TEXT,
    tags TEXT,
    moq INT DEFAULT 1,
    uom INT DEFAULT 1,
    rating TINYINT UNSIGNED DEFAULT 0,
    reviews INT UNSIGNED DEFAULT 0,
    weight DECIMAL(10,3),
    length DECIMAL(10,3),
    width DECIMAL(10,3),
    height DECIMAL(10,3),
    country_of_origin VARCHAR(5),
    location VARCHAR(50),
    total_sold INT UNSIGNED DEFAULT 0,
    baskets INT UNSIGNED DEFAULT 0,
    notifies INT UNSIGNED DEFAULT 0,
    date_last_sold DATE,
    PRIMARY KEY (pid),
    UNIQUE KEY unique_sku (SKU),
    INDEX idx_vendor (vendor),
    INDEX idx_brand (brand),
    INDEX idx_location (location),
    INDEX idx_total_sold (total_sold),
    INDEX idx_date_last_sold (date_last_sold)
) ENGINE=InnoDB;

-- Create categories table with hierarchy support
CREATE TABLE categories (
    cat_id BIGINT PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    type SMALLINT NOT NULL COMMENT '10=section, 11=category, 12=subcategory, 13=subsubcategory, 1=company, 2=line, 3=subline, 40=artist',
    parent_id BIGINT,
    description TEXT,
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    status VARCHAR(20) DEFAULT 'active',
    FOREIGN KEY (parent_id) REFERENCES categories(cat_id),
    INDEX idx_parent (parent_id),
    INDEX idx_type (type),
    INDEX idx_status (status),
    INDEX idx_name_type (name, type)
) ENGINE=InnoDB;

-- Create vendor_details table
CREATE TABLE vendor_details (
    vendor VARCHAR(100) PRIMARY KEY,
    contact_name VARCHAR(100),
    email VARCHAR(255),
    phone VARCHAR(50),
    status VARCHAR(20) DEFAULT 'active',
    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    INDEX idx_status (status)
) ENGINE=InnoDB;

-- Create product_categories junction table
CREATE TABLE product_categories (
    cat_id BIGINT NOT NULL,
    pid BIGINT NOT NULL,
    PRIMARY KEY (pid, cat_id),
    FOREIGN KEY (pid) REFERENCES products(pid) ON DELETE CASCADE,
    FOREIGN KEY (cat_id) REFERENCES categories(cat_id) ON DELETE CASCADE,
    INDEX idx_category (cat_id),
    INDEX idx_product (pid)
) ENGINE=InnoDB;

-- Create orders table with its indexes
CREATE TABLE orders (
    id BIGINT AUTO_INCREMENT PRIMARY KEY,
    order_number VARCHAR(50) NOT NULL,
    pid BIGINT NOT NULL,
    SKU VARCHAR(50) NOT NULL,
    date DATE NOT NULL,
    price DECIMAL(10, 3) NOT NULL,
    quantity INT NOT NULL,
    discount DECIMAL(10, 3) DEFAULT 0,
    tax DECIMAL(10, 3) DEFAULT 0,
    tax_included BOOLEAN DEFAULT false,
    shipping DECIMAL(10, 3) DEFAULT 0,
    customer VARCHAR(50) NOT NULL,
    customer_name VARCHAR(100),
    status VARCHAR(20) DEFAULT 'pending',
    payment_method VARCHAR(50),
    shipping_method VARCHAR(50),
    shipping_address TEXT,
    billing_address TEXT,
    canceled BOOLEAN DEFAULT false,
    FOREIGN KEY (pid) REFERENCES products(pid),
    INDEX idx_order_number (order_number),
    INDEX idx_customer (customer),
    INDEX idx_date (date),
    INDEX idx_status (status),
    INDEX idx_orders_metrics (pid, date, canceled, quantity, price),
    INDEX idx_orders_product_date (pid, date),
    UNIQUE KEY unique_order_product (order_number, pid)
) ENGINE=InnoDB;

-- Create purchase_orders table with its indexes
CREATE TABLE purchase_orders (
    id BIGINT AUTO_INCREMENT PRIMARY KEY,
    po_id VARCHAR(50) NOT NULL,
    vendor VARCHAR(100) NOT NULL,
    date DATE NOT NULL,
    expected_date DATE,
    pid BIGINT NOT NULL,
    sku VARCHAR(50) NOT NULL,
    cost_price DECIMAL(10, 3) NOT NULL,
    status VARCHAR(20) DEFAULT 'pending' COMMENT 'canceled,created,electronically_ready_send,ordered,preordered,electronically_sent,receiving_started,closed',
    notes TEXT,
    ordered INT NOT NULL,
    received INT DEFAULT 0,
    received_date DATE,
    received_by INT,
    FOREIGN KEY (pid) REFERENCES products(pid),
    FOREIGN KEY (sku) REFERENCES products(SKU),
    INDEX idx_po_id (po_id),
    INDEX idx_vendor (vendor),
    INDEX idx_status (status),
    INDEX idx_purchase_orders_metrics (pid, date, status, ordered, received),
    INDEX idx_po_product_date (pid, date),
    INDEX idx_po_product_status (pid, status),
    UNIQUE KEY unique_po_product (po_id, pid)
) ENGINE=InnoDB;

SET FOREIGN_KEY_CHECKS = 1;

-- Create views for common calculations
-- product_sales_trends view moved to metrics-schema.sql