initial

db/db.go

@@ -0,0 +1,55 @@
+package db
+
+import (
+	"database/sql"
+	"embed"
+	"fmt"
+	"vctp/db/queries"
+	"log/slog"
+
+	"github.com/golang-migrate/migrate/v4"
+	"github.com/golang-migrate/migrate/v4/database/sqlite3"
+	"github.com/golang-migrate/migrate/v4/source/iofs"
+)
+
+//go:embed migrations/*.sql
+var migrations embed.FS
+
+type Database interface {
+	DB() *sql.DB
+	Queries() *queries.Queries
+	Logger() *slog.Logger
+	Close() error
+}
+
+func New(logger *slog.Logger, url string) (Database, error) {
+	db, err := newLocalDB(logger, url)
+	if err != nil {
+		return nil, err
+	}
+	if err = db.db.Ping(); err != nil {
+		return nil, err
+	}
+	return db, nil
+}
+
+// Migrate runs the migrations on the database. Assumes the database is SQLite.
+func Migrate(db Database) error {
+	driver, err := sqlite3.WithInstance(db.DB(), &sqlite3.Config{})
+	if err != nil {
+		return fmt.Errorf("failed to create database driver: %w", err)
+	}
+
+	iofsDriver, err := iofs.New(migrations, "migrations")
+	if err != nil {
+		return fmt.Errorf("failed to create iofs: %w", err)
+	}
+	defer iofsDriver.Close()
+
+	m, err := migrate.NewWithInstance("iofs", iofsDriver, "sqlite3", driver)
+	if err != nil {
+		return fmt.Errorf("failed to create migration: %w", err)
+	}
+
+	return m.Up()
+}

db/local.go

@@ -0,0 +1,42 @@
+package db
+
+import (
+	"database/sql"
+	"vctp/db/queries"
+	"log/slog"
+
+	_ "github.com/tursodatabase/libsql-client-go/libsql"
+	_ "modernc.org/sqlite"
+)
+
+type LocalDB struct {
+	logger  *slog.Logger
+	db      *sql.DB
+	queries *queries.Queries
+}
+
+var _ Database = (*LocalDB)(nil)
+
+func (d *LocalDB) DB() *sql.DB {
+	return d.db
+}
+
+func (d *LocalDB) Queries() *queries.Queries {
+	return d.queries
+}
+
+func (d *LocalDB) Logger() *slog.Logger {
+	return d.logger
+}
+
+func (d *LocalDB) Close() error {
+	return d.db.Close()
+}
+
+func newLocalDB(logger *slog.Logger, path string) (*LocalDB, error) {
+	db, err := sql.Open("libsql", "file:"+path)
+	if err != nil {
+		return nil, err
+	}
+	return &LocalDB{logger: logger, db: db, queries: queries.New(db)}, nil
+}

db/migrations/20240407203525_init.up.txt

@@ -0,0 +1,7 @@
+CREATE TABLE IF NOT EXISTS authors (
+	id INTEGER PRIMARY KEY,
+	created_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,
+	name TEXT NOT NULL,
+	bio TEXT
+);
+

db/queries/query.sql

@@ -0,0 +1,25 @@
+-- name: GetAuthor :one
+SELECT * FROM authors
+WHERE id = ? LIMIT 1;
+
+-- name: ListAuthors :many
+SELECT * FROM authors
+ORDER BY name;
+
+-- name: CreateAuthor :one
+INSERT INTO authors (
+  name, bio
+) VALUES (
+  ?, ?
+)
+RETURNING *;
+
+-- name: UpdateAuthor :exec
+UPDATE authors
+SET name = ?,
+bio = ?
+WHERE id = ?;
+
+-- name: DeleteAuthor :exec
+DELETE FROM authors
+WHERE id = ?;