Extract API, migrations and portable NAS deployment

database/migrations/001_initial.sql

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+CREATE TABLE IF NOT EXISTS sync_state (
+  id TINYINT PRIMARY KEY,
+  sequence BIGINT UNSIGNED NOT NULL DEFAULT 0,
+  next_delivery_number INT UNSIGNED NOT NULL DEFAULT 1001
+);
+INSERT IGNORE INTO sync_state(id) VALUES (1);
+
+CREATE TABLE IF NOT EXISTS customers (
+  id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin PRIMARY KEY,
+  name VARCHAR(120) NOT NULL,
+  version INT UNSIGNED NOT NULL DEFAULT 1,
+  created_at VARCHAR(24) NOT NULL,
+  deleted_at VARCHAR(24) NULL
+);
+CREATE TABLE IF NOT EXISTS customer_addresses (
+  id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin PRIMARY KEY,
+  customer_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  label VARCHAR(80) NOT NULL,
+  address VARCHAR(300) NOT NULL,
+  version INT UNSIGNED NOT NULL DEFAULT 1,
+  created_at VARCHAR(24) NOT NULL,
+  deleted_at VARCHAR(24) NULL,
+  UNIQUE KEY address_customer (id, customer_id),
+  FOREIGN KEY (customer_id) REFERENCES customers(id)
+);
+CREATE TABLE IF NOT EXISTS delivery_types (
+  id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin PRIMARY KEY,
+  code VARCHAR(20) NOT NULL UNIQUE,
+  name VARCHAR(80) NOT NULL,
+  shipment_unit_hundredths INT UNSIGNED NOT NULL,
+  version INT UNSIGNED NOT NULL DEFAULT 1,
+  created_at VARCHAR(24) NOT NULL,
+  deleted_at VARCHAR(24) NULL
+);
+CREATE TABLE IF NOT EXISTS deliveries (
+  id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin PRIMARY KEY,
+  delivery_number INT UNSIGNED NOT NULL UNIQUE,
+  customer_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  address_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  delivery_type_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  delivery_type_version INT UNSIGNED NOT NULL,
+  shipment_unit_hundredths INT UNSIGNED NOT NULL,
+  unit_price_agorot INT UNSIGNED NOT NULL,
+  total_price_agorot BIGINT UNSIGNED NOT NULL,
+  notes VARCHAR(500) NOT NULL DEFAULT '',
+  status VARCHAR(20) NOT NULL DEFAULT 'created',
+  version INT UNSIGNED NOT NULL DEFAULT 1,
+  created_at VARCHAR(24) NOT NULL,
+  deleted_at VARCHAR(24) NULL,
+  FOREIGN KEY (customer_id) REFERENCES customers(id),
+  FOREIGN KEY (address_id, customer_id) REFERENCES customer_addresses(id, customer_id),
+  FOREIGN KEY (delivery_type_id) REFERENCES delivery_types(id)
+);
+CREATE TABLE IF NOT EXISTS sync_operations (
+  operation_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin PRIMARY KEY,
+  device_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  request_hash CHAR(64) NOT NULL,
+  result_json JSON NOT NULL,
+  created_at VARCHAR(24) NOT NULL
+);
+CREATE TABLE IF NOT EXISTS sync_changes (
+  sequence BIGINT UNSIGNED PRIMARY KEY,
+  entity_type VARCHAR(20) NOT NULL,
+  entity_id CHAR(36) CHARACTER SET ascii COLLATE ascii_bin NOT NULL,
+  change_json JSON NOT NULL,
+  INDEX entity_lookup (entity_type, entity_id, sequence)
+);