ok-2

internal/db/schema.go

@@ -0,0 +1,84 @@
+// Package db defines the database schema.
+package db
+
+// CurrentSchemaVersion returns the current schema version (for migrations)
+func CurrentSchemaVersion() int {
+	return 1
+}
+
+// CreateTableStatements returns a list of CREATE TABLE statements.
+func CreateTableStatements() []string {
+	return []string{
+		createNodesTable(),
+		createAttributesTable(),
+		createNetworksTable(),
+		createSubnetsTable(),
+		createSoftwareTable(),
+	}
+}
+
+// DropTableOrder returns table names in reverse dependency order for safe DROP.
+func DropTableOrder() []string {
+	return []string{"software", "attributes", "nodes", "subnets", "networks"}
+}
+
+// --- Private DDL Functions ---
+
+func createNodesTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS nodes (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    hostname TEXT NOT NULL UNIQUE,
+    ip TEXT,
+    status TEXT DEFAULT 'active',
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
+    updated_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);`
+}
+
+func createAttributesTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS attributes (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    node_id INTEGER NOT NULL,
+    key TEXT NOT NULL,
+    value TEXT NOT NULL,
+    FOREIGN KEY(node_id) REFERENCES nodes(id) ON DELETE CASCADE,
+    UNIQUE(node_id, key)
+);`
+}
+
+func createNetworksTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS networks (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL UNIQUE,
+    description TEXT,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);`
+}
+
+func createSubnetsTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS subnets (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    network_id INTEGER NOT NULL,
+    cidr TEXT NOT NULL,
+    gateway TEXT,
+    vlan INTEGER,
+    FOREIGN KEY(network_id) REFERENCES networks(id) ON DELETE CASCADE,
+    UNIQUE(network_id, cidr)
+);`
+}
+
+func createSoftwareTable() string {
+	return `
+CREATE TABLE IF NOT EXISTS software (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    name TEXT NOT NULL,
+    version TEXT NOT NULL,
+    installed_on INTEGER,
+    FOREIGN KEY(installed_on) REFERENCES nodes(id) ON DELETE SET NULL,
+    UNIQUE(name, version, installed_on)
+);`
+}