bookmark search

database/main.go

@@ -0,0 +1,84 @@
+package database
+
+import (
+	"database/sql"
+	"fmt"
+
+	_ "modernc.org/sqlite"
+)
+
+var db *sql.DB
+
+// InitDB opens the sqlite file at path and ensures the schema exists.
+// Call this once at startup before AddBookmark/RetrieveBookmarks are used.
+func InitDB(path string) error {
+	var err error
+	db, err = sql.Open("sqlite", path)
+	if err != nil {
+		return fmt.Errorf("open db: %w", err)
+	}
+
+	if err := db.Ping(); err != nil {
+		return fmt.Errorf("ping db: %w", err)
+	}
+
+	schema := `
+	CREATE TABLE IF NOT EXISTS bookmarks (
+		id       INTEGER PRIMARY KEY AUTOINCREMENT,
+		title    TEXT NOT NULL,
+		url      TEXT NOT NULL,
+		category TEXT NOT NULL
+	);`
+
+	if _, err := db.Exec(schema); err != nil {
+		return fmt.Errorf("create schema: %w", err)
+	}
+
+	return nil
+}
+
+type Bookmark struct {
+	ID       uint64
+	Title    string
+	URL      string
+	Category string // kebab-case, e.g. "market-data-and-filling-dbs"
+}
+
+func AddBookmark(b Bookmark) (id uint64, err error) {
+	res, err := db.Exec(
+		`INSERT INTO bookmarks (title, url, category) VALUES (?, ?, ?)`,
+		b.Title, b.URL, b.Category,
+	)
+	if err != nil {
+		return 0, fmt.Errorf("insert bookmark: %w", err)
+	}
+
+	lastID, err := res.LastInsertId()
+	if err != nil {
+		return 0, fmt.Errorf("get inserted id: %w", err)
+	}
+
+	return uint64(lastID), nil
+}
+
+func RetrieveBookmarks() (marks []Bookmark, err error) {
+	rows, err := db.Query(`SELECT id, title, url, category FROM bookmarks ORDER BY id DESC`)
+	if err != nil {
+		return nil, fmt.Errorf("query bookmarks: %w", err)
+	}
+	defer rows.Close()
+
+	for rows.Next() {
+		var b Bookmark
+		if err := rows.Scan(&b.ID, &b.Title, &b.URL, &b.Category); err != nil {
+			return nil, fmt.Errorf("scan bookmark: %w", err)
+		}
+		marks = append(marks, b)
+	}
+
+	if err := rows.Err(); err != nil {
+		return nil, fmt.Errorf("rows error: %w", err)
+	}
+
+	return marks, nil
+}