SET NAMES utf8mb4;

CREATE TABLE IF NOT EXISTS products (
  id VARCHAR(191) NOT NULL,
  title VARCHAR(255) NOT NULL,
  display INT NOT NULL DEFAULT 1,
  weight DECIMAL(12,4) NULL,
  sort_order INT NOT NULL DEFAULT 0,
  PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS prices (
  product_id VARCHAR(191) NOT NULL,
  buy BIGINT NOT NULL DEFAULT 0,
  sell BIGINT NOT NULL DEFAULT 0,
  enabled TINYINT(1) NOT NULL DEFAULT 1,
  source VARCHAR(100) NULL,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (product_id),
  CONSTRAINT fk_prices_product FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS price_history (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  product_id VARCHAR(191) NOT NULL,
  buy BIGINT NOT NULL,
  sell BIGINT NOT NULL,
  enabled TINYINT(1) NOT NULL,
  source VARCHAR(100) NULL,
  changed_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  KEY idx_price_history_product (product_id, changed_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS inventory (
  product_id VARCHAR(191) NOT NULL,
  stock BIGINT NULL,
  is_stopped TINYINT(1) NOT NULL DEFAULT 0,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (product_id),
  CONSTRAINT fk_inventory_product FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS inventory_history (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  product_id VARCHAR(191) NOT NULL,
  old_stock BIGINT NULL,
  new_stock BIGINT NULL,
  source VARCHAR(100) NULL,
  changed_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  KEY idx_inventory_history_product (product_id, changed_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS site_inventory (
  site VARCHAR(191) NOT NULL,
  product_id VARCHAR(191) NOT NULL,
  stock BIGINT NOT NULL DEFAULT 0,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (site, product_id),
  CONSTRAINT fk_site_inventory_product FOREIGN KEY (product_id) REFERENCES products(id) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS settings (
  key_name VARCHAR(191) NOT NULL,
  key_value LONGTEXT NULL,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (key_name)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS market_cache (
  cache_key VARCHAR(191) NOT NULL,
  payload LONGTEXT NOT NULL,
  expires_at DATETIME NULL,
  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (cache_key)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

CREATE TABLE IF NOT EXISTS logs (
  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
  channel VARCHAR(100) NOT NULL,
  level VARCHAR(30) NOT NULL,
  message TEXT NOT NULL,
  context LONGTEXT NULL,
  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  KEY idx_logs_channel_created (channel, created_at)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;