eeea8d4d34
Go-based dictionary backend providing word validation, definitions, synonyms, and cross-language translation for English, French, and Portuguese. Designed as a self-hosted replacement for Wordnik, backing GogoBee. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
94 lines
1.9 KiB
Go
94 lines
1.9 KiB
Go
package dictionary
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import (
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"database/sql"
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"errors"
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)
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var (
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ErrNoMatch = errors.New("dictionary: no word matches filters")
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ErrNotSeeded = errors.New("dictionary: database not seeded, run: go run ./cmd/dictimport")
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)
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var supportedLangs = []string{"en", "fr", "pt-PT"}
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func ValidLang(lang string) bool {
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for _, l := range supportedLangs {
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if l == lang {
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return true
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}
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}
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return false
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}
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type Options struct {
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MinLength int
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MaxLength int
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POS string // "", "noun", "verb", "adjective", "adverb"
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MinFrequency int // 0 = no filter
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}
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type Definition struct {
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POS string `json:"pos"`
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Gloss string `json:"gloss"`
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Source string `json:"source"`
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Priority int `json:"priority"`
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}
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type Dictionary struct {
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db *sql.DB
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}
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// New opens the database read-write (for import CLI).
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func New(dbPath string) (*Dictionary, error) {
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db, err := openDB(dbPath)
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if err != nil {
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return nil, err
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}
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d := &Dictionary{db: db}
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if err := d.checkSeeded(); err != nil {
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db.Close()
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return nil, err
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}
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return d, nil
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}
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// NewReadOnly opens the database read-only with concurrent read support (for server).
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func NewReadOnly(dbPath string) (*Dictionary, error) {
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db, err := openReadOnlyDB(dbPath)
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if err != nil {
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return nil, err
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}
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d := &Dictionary{db: db}
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if err := d.checkSeeded(); err != nil {
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db.Close()
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return nil, err
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}
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return d, nil
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}
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// NewFromDB creates a Dictionary from an existing *sql.DB (useful for testing).
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func NewFromDB(db *sql.DB) *Dictionary {
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return &Dictionary{db: db}
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}
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func (d *Dictionary) Close() error {
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return d.db.Close()
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}
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func (d *Dictionary) checkSeeded() error {
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var count int
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err := d.db.QueryRow("SELECT COUNT(*) FROM meta").Scan(&count)
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if err != nil {
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return ErrNotSeeded
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}
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if count == 0 {
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return ErrNotSeeded
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}
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return nil
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}
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func (d *Dictionary) SupportedLangs() []string {
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return supportedLangs
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}
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