basic online

internal/database/migrate.go

@@ -0,0 +1,86 @@
+package database
+
+import "fmt"
+
+// Migrate runs the schema bootstrap. SQLite doesn't need a migration tool —
+// CREATE TABLE IF NOT EXISTS is idempotent so this is safe to call on every start.
+func Migrate(db *DB) error {
+	stmts := []string{
+		`CREATE TABLE IF NOT EXISTS departments (
+			id          INTEGER PRIMARY KEY AUTOINCREMENT,
+			code        TEXT NOT NULL UNIQUE,
+			name        TEXT NOT NULL,
+			cost_center TEXT NOT NULL DEFAULT '',
+			active      INTEGER NOT NULL DEFAULT 1,
+			created_at  TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now'))
+		)`,
+
+		`CREATE TABLE IF NOT EXISTS gl_accounts (
+			id          INTEGER PRIMARY KEY AUTOINCREMENT,
+			code        TEXT NOT NULL UNIQUE,
+			description TEXT NOT NULL,
+			type        TEXT NOT NULL CHECK(type IN ('revenue','cogs','opex','capex','headcount')),
+			favour_high INTEGER NOT NULL DEFAULT 0,
+			active      INTEGER NOT NULL DEFAULT 1
+		)`,
+
+		`CREATE TABLE IF NOT EXISTS budgets (
+			id            INTEGER PRIMARY KEY AUTOINCREMENT,
+			fiscal_year   INTEGER NOT NULL,
+			fiscal_period INTEGER NOT NULL CHECK(fiscal_period BETWEEN 1 AND 12),
+			version       TEXT NOT NULL DEFAULT 'original'
+			              CHECK(version IN ('original','forecast_1','forecast_2','forecast_3')),
+			department_id INTEGER NOT NULL REFERENCES departments(id),
+			gl_account_id INTEGER NOT NULL REFERENCES gl_accounts(id),
+			amount        REAL NOT NULL,
+			currency      TEXT NOT NULL DEFAULT 'DKK',
+			notes         TEXT NOT NULL DEFAULT '',
+			created_by    TEXT NOT NULL,
+			created_at    TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
+			updated_at    TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
+			UNIQUE(fiscal_year, fiscal_period, version, department_id, gl_account_id)
+		)`,
+
+		`CREATE TABLE IF NOT EXISTS actuals (
+			id            INTEGER PRIMARY KEY AUTOINCREMENT,
+			fiscal_year   INTEGER NOT NULL,
+			fiscal_period INTEGER NOT NULL CHECK(fiscal_period BETWEEN 1 AND 12),
+			department_id INTEGER NOT NULL REFERENCES departments(id),
+			gl_account_id INTEGER NOT NULL REFERENCES gl_accounts(id),
+			amount        REAL NOT NULL,
+			currency      TEXT NOT NULL DEFAULT 'DKK',
+			source        TEXT NOT NULL DEFAULT '',
+			ingested_at   TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ','now')),
+			UNIQUE(fiscal_year, fiscal_period, department_id, gl_account_id)
+		)`,
+
+		// Seed reference data if not already present
+		`INSERT OR IGNORE INTO departments (code, name, cost_center) VALUES
+			('ENG',     'Engineering',          'CC-100'),
+			('SALES',   'Sales',                'CC-200'),
+			('MKTG',    'Marketing',            'CC-300'),
+			('FINANCE', 'Finance & Operations', 'CC-400'),
+			('PRODUCT', 'Product',              'CC-500')`,
+
+		`INSERT OR IGNORE INTO gl_accounts (code, description, type, favour_high) VALUES
+			('4000', 'Subscription Revenue',     'revenue',   1),
+			('4100', 'Professional Services',    'revenue',   1),
+			('5000', 'Cloud Infrastructure',     'cogs',      0),
+			('5100', 'Third-party Licenses',     'cogs',      0),
+			('6100', 'Salaries & Wages',         'headcount', 0),
+			('6110', 'Employer Payroll Tax',     'headcount', 0),
+			('6120', 'Employee Benefits',        'headcount', 0),
+			('6300', 'Software Subscriptions',   'opex',      0),
+			('6310', 'Travel & Entertainment',   'opex',      0),
+			('6400', 'Marketing & Advertising',  'opex',      0),
+			('6500', 'Consulting & Contractors', 'opex',      0),
+			('6600', 'Office & Facilities',      'opex',      0)`,
+	}
+
+	for _, stmt := range stmts {
+		if _, err := db.Exec(stmt); err != nil {
+			return fmt.Errorf("migrate: %w", err)
+		}
+	}
+	return nil
+}